Page 1 DIGITAL INFORMATION RECORDER GY-2120WD GY-2120WS MAINTENANCE MANUAL 1st Edition (Revised 2) Serial No. 10001 and Higher...
Page 2 ! WARNING This manual is intended for qualified service personnel only. To reduce the risk of electric shock, fire or injury, do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so. Refer all servicing to qualified service personnel.
Page 3: Table Of Contents
LED Indicator Information on Board ............1-30 1-10. GY-2120 Control Software remo. exe ............1-31 1-10-1. Connection ................1-31 1-10-2. RS-232C Setting............... 1-31 1-10-3. Activation and Screen Display ..........1-31 1-10-4. Command Description ............. 1-32 1-10-5. Tracking Adjustment Mode ............. 1-32 1-10-6. Completion ................1-32 GY-2120WD/WS...
Page 4 Brush/Slip Ring Assembly Replacement ......... 3-31 3-3-3. Drum Assembly Replacement ..........3-34 3-3-4. Cleaning Roller and Rotary Head Cleaner Assembly Replacement ......3-40 3-4. Drum Entrance Side Block ................ 3-44 3-4-1. S Tension Regulator Assembly Replacement ......3-44 3-4-2. Tape Cleaner Replacement ............3-48 GY-2120WD/WS...
Page 5 CTL/TC Head Height Adjustment ............5-22 5-6. CTL/TC Head Azimuth Adjustment ............5-25 5-7. CTL/TC Head Position Adjustment ............5-28 5-8. Time Code Level Adjustment in Rev Mode ..........5-31 5-9. Drum Head Height Check ................. 5-34 5-10. CH ERASE Signal Check ................. 5-36 GY-2120WD/WS...
Page 6 T Reel Motor Torque Automatic Adjustment ......6-197 6-5-9. S/T Tension Regulator Offset Automatic Adjustment ... 6-197 6-5-10. Free Speed Automatic Adjustment ........6-198 6-5-11. Drum Phase Automatic Adjustment ........6-198 6-5-12. Saves SV Adjustments Data ........... 6-199 6-5-13. Automatic-Tracking Function Check ........6-199 GY-2120WD/WS...
Page 7 Electrical Parts List ................... 7-31 7-3-1. Frame List ................7-31 7-4. Supplied Accessories List ................. 7-33 7-5. Optional Fixtures List ................7-34 8. Block Diagrams & Frame Wiring Circuit Description of GY-2120 ............... 8-2 Overall ....................8-3 Frame wiring ..................... 8-4 GY-2120WD/WS...
Page 8 Appendex A Downloading of Firmware A-1. Downloading of firmware using DTF tape ..........A-1 A-1-1. Outline ..................A-1 A-1-2. Operating from the Front Panel ..........A-1 A-1-3. Starting from RS-232C FDL Menu ........... A-5 GY-2120WD/WS...
Page 9: Manual Structure
Describes the downloading of firmware using DTF tape. Relative manual Besides this maintenance manual, the following manual is available for the unit..Operation Manual(Supplied with the unit) This manual is necessary for application and operation of the unit. GY-2120WD/WS...
Page 11: Service Overview
Front panel Remove the four screws and remove the front panel. Bottom plate B3 x 6 B3 x 6 Put the right-side or the left-side of the panel downward. Then remove the four screws and remove the bottom plate. GY-2120WD/WS...
Page 12: Cassette Compartment Removal/Installation
Connector (CN930) might be changed or some parts might be removed. Hole for fixing the position Mechanical chassis Cassette compartment Flexible card wire Left side panel Installation of the Cassette Compartment Right side panel Removal of the Cassette Compartment GY-2120WD/WS...
Page 13: Main Parts Layout
9 CTL/TC head cleaner @[ Capstan shaft 0 T drawer arm @] Cleaning roller block !- TG-10 tape guide @\ Pinch press block != Pinch roller @; TG-4 tape guide ![ T reel table @'Threading gear block !] T brake assembly GY-2120WD/WS...
Page 14 PD-35 ......... != Front Rear PTC-54 ......![ <Upper-side view> PTC-59 ......!] PTC-71 ......!\ RM-82 ........ !; SE-344 ....... !' SE-358 ....... !, TR-78 ......... !. TR-79 ......... @/ Switching regulator ... @- Front Rear <Right-side view> GY-2120WD/WS...
Page 15 1-2. Main Parts Layout <Upper-side view> Rear Front <Upper-side view of cassette compartment> GY-2120WD/WS...
Page 16: Function Descriptions And Sensors Layouts
1-2. Main Parts Layout 1-2-3. Function Descriptions and Sensors Layouts <Upper-side view> Rear Upper Lower Front <Upper-side view of cassette compartment> GY-2120WD/WS...
Page 17 This sensor detects the rotation of the take-up reel down (1) sensor, and a cassette-in sensor. table. The FG output signal of this sensor is input to the servo circuit to control the rotation speed of the reel motor. GY-2120WD/WS...
Page 18: Setting Of Switches And Jumper Plugs On Board
Factory setting: All OFF The firmware is selected by the setting below. JP102 JP103 . S202 SHORT OPEN For GY-2120WD/2120WS This switch (8-pin DIP switch) is used during factory setting. OPEN SHORT For DMS-B9WD/B9WS Factory setting: All OFF Factory setting: .
Page 19 This switch is used to perform the self-diagnosis of this Factory setting: All OFF unit. (For more details, refer to the “Maintenance Mode in Section 6”.) * Special Eject This function performs the tape cleaning when a failure occurs during READ/WRITE operation on the tape. GY-2120WD/WS...
Page 20: Connector/Cable Information
1-4. Connector/Cable Information 1-4. Connector/Cable Information Rear panel REVISION OPTION RS232C BREAKER AC IN SCSI SCSI TERM POWER SET UP 1-10 GY-2120WD/WS...
Page 21 — — — — — — — — — — — ( ) ; Pin numbers is the case of 9-PIN [Information] Cable Connection When connecting PC and GY-2120, connect the each connector refering to the above information. 1-11 GY-2120WD/WS...
Page 22 1-4. Connector/Cable Information SCSI: 68-pin (female): GY-2120WD/2120WS < External View > GY-2120WD GY-2120WS GY-2120WD GY-2120WS Signal Signal Signal Signal _DB12 _DB12 +DB12 — +DB13 — _DB13 _DB13 +DB14 _DB14 _DB14 — _DB15 _DB15 +DB15 — +DBP1 — _DBP1 _DBP1 —...
Page 23 Requires to reset all the devices connected to the SCSI bus. However, this signal is not turned on in GY-2120WD/WS. Identifies information. (1: Control information* / 0: Data information.) Determines the direction of transmission. (1: Initiator → Target / 0: Target → Initiator) The target drives this signal.
Page 24 1-4. Connector/Cable Information OPTION: 25-pin (female) < External View > Pin No. Signal — — — — — Reserved 1 — Reserved 2 — Reserved 3 — — — — — — — — — — — — — 1-14 GY-2120WD/WS...
Page 25: Cassette Ejection In The Case Of Tape Slack
FG ring surface of the T reel table. This may damage the FG ring surface. Insert a skewer from the longitudinal hole, hang it on the hook of the T reel table, and turn the table for tape winding. Winding the Tape 1-15 GY-2120WD/WS...
Page 26: Fixtures And Measuring Equipment For Adjustment
L-shaped Hexagonal Wrench (d=1.5 mm) ————— 7-700-766-04 Hexagonal Wrench Driver (d=2.5 mm) ————— 8-960-074-01 Alignment Tape, YR5-1 ————— RF alignments 8-960-074-11 Alignment Tape, YR2-1 ————— Tracking adjustments 9-911-053-00 Thickness Gauge ————— Clearance check 9-919-573-01 Clerning Liquid ————— Cleaning 1-16 GY-2120WD/WS...
Page 27 1-6. Fixture and Measuring Equipment for Adjustment 1-17 GY-2120WD/WS...
Page 28: Measuring Equipment
Each equipment is available as a standard product. Equipment Model Name Remarks Spectrum Analyzer ADVANTEST with external trigger function R3261A bandwidth: more than 100 MHz Oscilloscope TEKTRONIX 2465B Frequency Counter ADVANTEST TR5821AK Digital Voltmeter ADVANTEST TR6845 1-18 GY-2120WD/WS...
Page 29: Alignment Tapes
A,C CH - 5.28 MH B,D CH - 10.56 MH ––––– 90000 ––––– (2) YR5-1 (for RF alignment) Part No. : 8-960-074-01 Contents Recording Signal (RF) ––––––– 0 –––––––– Test Signal . RF Alignment/Check Randomize data ––––– 90000 –––––– 1-19 GY-2120WD/WS...
Page 30: Power Block
3. Remove the eight screws (B3 x 6), then remove the PWH3 x 6 rear panel. CN53 CN52 CN51 Rear panel PWH3 x 6 B3 x 6 B3 x 6 B3 x 6 B3 x 6 7. Install a switching regulator in the reverse order of removal. 1-20 GY-2120WD/WS...
Page 31: Switching Regulator Fuse Replacement
When the breaker which connected to the power supply block is operated and the button is ejected, remove the cause of the problem and push the button. Rear panel REVISION RS232C OPTION BREAKER AC IN TERM POWER SCSI SCSI SET UP Breaker 1-21 GY-2120WD/WS...
Page 32: Voltage And Power Requirements
Power cord for the customer in Europe except the United Kingdom. 1DK-2401(AE) (approx. 2.4 m) 2 Plug holder (Black) 2-990-242-01 Plug holder is included in DK-2401(AE). AC inlet If the unit is used in the area except above, please consult with local Sony's sales/service office. 1-22 GY-2120WD/WS...
Page 33: Boards Replacement
Refer to Section 6-4-3. Electrical adjustment item after board replacement. 1-8-3. MS-54 Refer to Section 6-4-2. NV-RAM initialization Refer to Section 6-4-3. Electrical adjustment item after board replacement. 1-8-4. SE-358 —————— 1-7-1. Switching Regulator Refer to Section 6-4-4. Electrical adjustment item after Switching regulator replacement. [Layouts] 1-23 GY-2120WD/WS...
Page 34: And If-682/683 Board Replacement
Rear panel PWH3 x 6 MA-83 board PWH3 x 6 B3 x 5 9. Install each board in the main unit in the reverse order of removal. PWH3 x 6 B3 x 5 PWH3 x 6 MA-83 board 1-24 GY-2120WD/WS...
Page 35: Board Replacement
PWH3 x 6 PWH3 x 6 B3 x 5 PWH3 x 6 7. Install a DR-327 board in the main unit in the reverse PWH3 x 6 B3 x 5 order of removal. MA-83 board 1-25 GY-2120WD/WS...
Page 36: Board Replacement
At that time, slide the MA-83 board toward the front panel, then take out it in the direction indicated by the arrow. PWH3 x 6 PWH3 x 6 B3 x 5 PWH3 x 6 PWH3 x 6 B3 x 5 MA-83 board 1-26 GY-2120WD/WS...
Page 37 PWH3 x 6 CN11 PWH3 x 6 PWH3 x 6 CN12 MS-54 board CN10 9. Install a MS-54 board in the main unit in the reverse order of removal. CN17 CN13 CN16 CN18 CN15 CN14 MS-54 BOARD (A SIDE) 1-27 GY-2120WD/WS...
Page 38 SE fixing panel from the main unit. Harness clamper Harness clamper SE fixing PWH3 x 6 panel PWH3 x 6 BVTT 3 x 6 SE-358 board 6. Install a SE-358 board in the main unit in the reverse order of removal. 1-28 GY-2120WD/WS...
Page 39: And Eq-66 Boards Replacement
8. Remove the four screws (BVTT3 x 6). Switching regulator PWH3 x 6 BVTT3 x 6 BVTT3 x 6 CN53 CN52 EX-603 board CN51 CN254 CN252 PWH3 x 6 CN251 CN253 9. Install each board in the main unit in the reverse order of removal. 1-29 GY-2120WD/WS...
Page 40: Led Indicator Information On Board
. Drum servo check during nomal operation. <Blinking pattern of D602 on EQ-66 board> ROM RAM error lighting 8 ms Repeat 116 ms Drum not locked 50 ms lighting Repeat 1600 ms Drum locked 50 ms lighting Repeat 1900 ms 1-30 GY-2120WD/WS...
Page 41: Gy-2120 Control Software Remo. Exe
After “0” is entered for the “BAUD RATE=>” prompt, do not turn off the power until the “SERV=>” prompt is displayed. 4. Turn off the power of the GY-2120WD/2120WS. 5. Terminate the terminal software of the PC. (Note 1) IBM PC AT is a registered trademark of IBM corporation...
Page 42: Command Description
1. Press the [ESC] key from the keyboard of a personal normal speed. computer. 2. Turn off the power of the GY-2120WD and GY-2120- S-1 (ENTER): Plays back at normal speed in the reverse direction. S-5 (ENTER): Plays back at five times the normal speed in the reverse direction.
Page 43: Gy-2120 Scsi Control Software Scsitool.exe
Functions of GY and DMS as a set can be checked. 1-11-1. Operating Environment : IBM PC/AT compatible : Windows 95 SCSI board : Adaptec AHA-2944UW (Ultra Wide differential) GY-2120WD Adaptec AHA-2940UW (Ultra Wide Single-ended) GY-2120WS 1-11-2. Connection SCSI cable...
Page 44: Functions
Indicates which device is connected to which ID. When several devices are connected, the device ID targeted can be changed. How to use : Click the item to be selected with the mouse. <Fig. 2> Scan Function Menu of Device 1-34 GY-2120WD/WS...
Page 45 TOOL.) . ADAPTER #0 : Set the adapter number to “0”. . ADAPTER #1 : Set the adapter number to “1”. . TARGET #0 to #7 : Set the SCSI ID of the target to “0” to “7”. 1-35 GY-2120WD/WS...
Page 46 2) DMS_CMD ... Single command issue function for DMS ♦Refer to Fig. 5. <Fig. 5-1> DMS Single Command Menu <Fig. 5-2> When “REQUEST SENSE (03H)” of the Popup Menu is Selected <Fig. 5-3> Screen When “<Fig. 5-2>” is Executed 1-36 GY-2120WD/WS...
Page 47 <Fig. 6-2> Screen When “<Fig. 6-1>” is Executed  . SEND VOLUME TAG  (Single Command Setup Screen) . READ ELEMENT STAT   . INIT ELM STAT WITH COND . COMMAND SET UP — Command parameter setting 1-37 GY-2120WD/WS...
Page 48 . LOCATE  . READ POSITION  . WRITE BUFFER   . READ BUFFER  . RECOVER  . MOUNT UNMOUNT   . EJECT <Fig. 7-2> When “TEST UNIT READY” (00H)” of the Popup Menu is Executed 1-38 GY-2120WD/WS...
Page 49 1-11. GY-2120 SCSI Control Software scsitool.exe <Fig. 7-3> Screen When “<Fig. 7-2>” is Executed (Error) <Fig. 7-4> Screen When “<Fig. 7-2>” is Executed (GOOD) 1-39 GY-2120WD/WS...
Page 50 . WRITE BUF CMD SET — Setting of parameters of Write Buffer command . READ BUF CMD SET — Setting of parameters of Read Buffer command . MT/UNMT CMD SET — Setting of parameters of Mount/Unmount command . EJECT CMD SET — Setting of parameters of Eject command 1-40 GY-2120WD/WS...
Page 51 1-11. GY-2120 SCSI Control Software scsitool.exe <Fig. 8-2> When “WRITE CMD SET” (Write command setup) of the Popup Menu is Selected <Fig. 8-3> Dialog Box When “<Fig. 8-2>” is Executed 1-41 GY-2120WD/WS...
Page 52 . READ ELEMENT STAT — Displays the Read Element Status data . READ POSITION — Displays the Read Position data . LOG SENSE — Displays the Log Sense data . SET UP — For setting the display format 1-42 GY-2120WD/WS...
Page 53 1-11. GY-2120 SCSI Control Software scsitool.exe <Fig. 9-2> When “CDB PACKET” of the Popup Menu is Selected <Fig. 9-3> Screen When “<Fig. 9-2>” is Executed <Fig. 9-4> When “REQUEST SENSE” of the Popup Menu is Selected 1-43 GY-2120WD/WS...
Page 54 1-11. GY-2120 SCSI Control Software scsitool.exe <Fig. 9-5> Screen When “<Fig. 9-4>” is Executed <Fig. 9-6> When “SET UP” of Popup Menu is Selected <Fig. 9-7> Dialog Box When “<Fig. 9-6>” is Executed 1-44 GY-2120WD/WS...
Page 55 How to use : Click “About...” of the popup menu. The version dialog box will be displayed. [Popup Menu] . About... : SCSI TOOL version <Fig. 10-1> Help Menu (Function which Displays the Tool Version) <Fig. 10-2> Dialog Box When “<Fig. 10-1>” is Executed 1-45 GY-2120WD/WS...
Page 56: Starting
4. Execute the desired tests such as single commands, etc. 1-11-5. Ending 1. Click “ ” at the top right of the SCSI_TOOL screen, or click “ ”at the top left, select “Close” of the popup menu, and close the screen. 1-46 GY-2120WD/WS...
Page 57 Note) The capacity per volume should be the same. Different values cannot be set. 2-1-3 Comp.Mode Set whether to compress during writing or not. . ON : Compresses the data. . OFF : The data is not compressed. [Default] OFF Fig. 1 Parameter Setting 1-47 GY-2120WD/WS...
Page 58 If the SCSI command name and results are OK, outputs “OK”. If bad, details are output. . Bad spot number after writing/reading, etc. As the value of the bad spot number, etc., the value before starting writing/reading and value when writing/reading ended are outputted. . Ending time 1-48 GY-2120WD/WS...
Page 59 OK !! LOAD/UNLOAD >> OK!! Write Retry Block Num (end) = 0 Read Retry Block Num (end) = 0 Bad Spot Num (end) = 0 Read Retry Num (end) = 0 Finish Time: 18:08:13 fig. 2 Log File 1-49 GY-2120WD/WS...
Page 60 To change the parameter, perform 2-1. Any type of cassette can be used. Load the cassette before starting aging. 3-2. Execution To execute, click “START” in Fig. 3 Operates according to “3-3. Operation Sequence” Fig. 3 Screen Selected 1-50 GY-2120WD/WS...
Page 61 ↓ Repeat number of settings ↓ Rewind ↓ Read ↓ Verify ↓ Space ↓ Repeat number of settings ↓ Check and save the bad spot number, etc. after writing/reading ↓ Move volume ↓ Next page Check volume position 1-51 GY-2120WD/WS...
Page 62 >> ERROR!! <SENSE-KEY [ 0] - ASC [ 0] - ASCQ [ 0]> EOM bit ON Example 2: In this case, the details are output and the process is stopped. WRITE >> ERROR!! <SENSE-KEY [ 5] - ASC [20] - ASCQ [00]> INVALID COMMAND 1-52 GY-2120WD/WS...
Page 63: Revision Label
The revision labels for boards affixed on the boards bears the software version.The affixed revision label will be changed Rev. A → Rev. B → Rev. C by upgrading the software. REV.A (Revision Label affixed on the Board) 1-53 GY-2120WD/WS...
Page 64 CN102 LABEL IC112 S201 IC111 S101 REVISION COMP S102 S104 LABEL IC603 IC813 D410 D405 D409 D404 CN101 DSP-78 BOARD (A SIDE) D403 D408 D407 D402 D406 D401 CN100 D415 D413 D411 D414 D412 MA-83 BOARD (A SIDE) 1-54 GY-2120WD/WS...
Page 65 1-12. Revision Label DR-327 Board EQ-66 Board REVISION LABEL CN211 CN212 REVISION LABEL CN201 EQ-66 BOARD (A SIDE) DR-327 BOARD (A SIDE) MEM-83 Board REVISION LABEL MEM-83 BOARD (B SIDE) 1-55 GY-2120WD/WS...
Page 66: Download By Special Tool
1-13. Download by Special Tool When the version of firmwares are upgraded, floppy disks containing the download tool FDL2120 file for GY-2120 are distributed to the Sony service centers. The FDL2120 can download four firmwares incorporated in this unit. Perform download according to the following procedure.
Page 67 Check that after about 3 seconds, the “SERV => ” prompt is displayed again. 10. Enter “quit” for the prompt, and press the ENTER key. Check that the message “Exit SERVICE SET MODE” is displayed. 11. Turn OFF the GY-2120 power. 1-57 GY-2120WD/WS...
Page 68 Example : Input File Name : scsi 120. mot " If a wrong file name is entered, “Can’t Open File (input file name)” will be displayed at the PC and the download tool will end. Repeat from step 5. 1-58 GY-2120WD/WS...
Page 69 If the power of GY-2120 is turned off during writing, the ROM data may be damaged in some cases, which will require the ROM to be replaced. 11. Wait until “No Tape” is displayed on the front panel of GY-2120. 1-59 GY-2120WD/WS...
Page 70 3. To download a different firmware, execute from step 4 “Downloading Firm- ware”. 4. Turn OFF the power of GY-2120. 5. Disconnect the RS-232C cable of GY-2120. 6. Turn OFF the SET UP switch No. 8 of the GY-2120 rear panel. 7. End 1-60 GY-2120WD/WS...
Page 71: Periodic Maintenance And Inspection
. Do not insert a cassette tape before a cleaning fluid completely evaporates after cleaning. 2. Preparation (1) Turn the power off. (2) Remove the upper lid. (Refer to Section 1-1-1.) (3) Remove the plate MD. (Refer to Section 1-1-1.) (4) Remove the cassette compartment. (Refer to Section 1-1-2.) GY-2120WD/WS...
Page 72: Rotary Heads Cleaning
(clockwise) or clean it in the vertical direction. This may damage the rotary heads and the brush/slipring assembly. 3. After cleaning, wipe it with a dry cleaning cloth two or three times. Rotary heads Cleaning cloth Rotary Heads Cleaning GY-2120WD/WS...
Page 73: Lower Drum's Tape Running Surface And Lead Surface Cleaning
3. After cleaning, wipe it with a dry cleaning cloth two or three times. Cleaning cloth Skewer Drum lead surface Lower drum's running surface Lower Drum’s Tape Running Surface and Lead Surface Cleaning GY-2120WD/WS...
Page 74: Stationary Heads Cleaning
CTL/TC head and Full erase head. Remove the magnetic powder completely during cleaning. 2. After cleaning, wipe it with a dry cleaning cloth two or three times. CTL/TC haed CTL/TC erase head Full erase head Stationary Heads Cleaning GY-2120WD/WS...
Page 75: Tape Running System And Tape Cleaner Cleaning
2. After cleaning, clean it with a dry cleaning cloth two or three times. TG-4 Capstan TG-3 TG-1 (Exit guide) (S-TEN) TG-7 TG-6 Pinch roller TG-8 (T-TEN) TG-5 TG-9 TG-0 Slant guide Tape cleaner TG-2 TG-10 (Entrance guide) Tape Running System and Tape Cleaner Cleaning GY-2120WD/WS...
Page 76: Cassette Compartment Cleaning
2. Remove the dust on the cassette compartment from the cassette insertion inlet using a vacuum cleaner. 3. Clean the compartment (shaded portion in the figure) with a dry cloth (or gauze). Do not apply an excessive force to the compartment block. Cassette door Compartment block Cassette Compartment Cleaning GY-2120WD/WS...
Page 77: Periodic Check
The replacement time shown in the table is not the guarantee term of parts. Note: The part marked with “↓” in the table is replaced simultaneously with when the part in the column below its mark is replaced. The “R” mark in this table indicates the replacement timing of parts. GY-2120WD/WS...
Page 78 3-180-874- Brake Solenoid Replace when used 200,000 times. TABLE (T) BLOCK ASSY A-8267-702- Refer to Section 3-2-3. TABLE (S) BLOCK ASSY A-8267-703- Other Cassette Compartment Assy Replace when used 200,000 times. CASSETTE COMPARTMENT ASSY A-8267-863- Refer to Section 1-1-2. GY-2120WD/WS...
Page 79: Rec Current Automatic Adjustment
Perform this adjustment every 1,000 hours (By “Drum Run Hours”). Equipment . Personal computer (PC) Connection (except measuring equipment) RS-232C Port RS-232C PC *1 GY-2120WD/ 2120WS Display, Key board 1: Refer to Section 6-1-1 regarding a PC . 2: Refer to Section 1-4 regarding an RS-232C cable. Tools .
Page 80 RF NV-RAM Save (8) Press the “Y” key to save the adjustment data Are you ready (y/n)? Yes in a NV-RAM. (9) When the data saving is completed, message Saving..OK “Saving..OK” is displayed on the screen. Data Saved ------>_ 2-10 GY-2120WD/WS...
Page 81: Replacement Of Mechanical Parts
About the amount that will adhere to the end of a stick 2 mm in diameter, as shown in the figure. . Do not use the grease and oil except for specified portions. 3. Stop Washer Do not reuse the removed stop washer again. . Stop washer (d = 2.3 mm): 3-669-596-00 GY-2120WD/WS...
Page 82: Index
Capstan Motor 3-6-2 Brush/slip ring Assembly 3-3-2 Pinch Press Assembly 3-6-3 Drum Assembly 3-3-3 Gear Box Assembly 3-6-4 Rotary Head Cleaner Assembly 3-3-4 T Tension Arm 3-6-5 S Tension Regulator Assembly 3-4-1 T Drawer Arm 3-6-6 Tape Cleaner 3-4-2 GY-2120WD/WS...
Page 83 3-1. General Information for Parts Replacement <Overall Block> Part Name Section Fan Motor 3-7-1 Air Filter 3-7-2 GY-2120WD/WS...
Page 84: Threading End Mode And Unthreading End Mode
CTL/TC RP head TG-3 (Exit guide) M gear TG-7 TG-8 (T tension regulator) TG-9 TG-6 TG-4 Capstan Pinch roller TG-5 (Threading roller) TG-0 TG-2 (Entrance guide) Full erase head Slant guide Tape cleaner TG-1 (S tension regulator) TG-10 Threading End Mode GY-2120WD/WS...
Page 85 CTL/TC erase head TG-9 TG-3 (Exit guide) M gear TG-8 (T tension regulator) TG-4 TG-7 Capstan Full erase head TG-0 Tape clerner TG-6 TG-5 TG-10 (Threading roller) TG-1 (S tension regulator) TG-2 (Entrance guide) Pinch roller Slant guide Unthreading End Mode GY-2120WD/WS...
Page 86: L Cassette Position And S Cassette Position
There is the way of putting the reel tables into the L cassette position without installing the cassette compartment. Turn the drive gear fully in the direction of the arrow C. S reel table T reel table Drive gear L Cassette Position GY-2120WD/WS...
Page 87 There is the way of putting the reel tables into the S cassette position without installing the cassette compartment. Turn the drive gear fully in the direction of the arrow D. T reel table S reel table Drive gear S Cassette Position GY-2120WD/WS...
Page 88: Reel Block
. Cleaning cloth: 3-184-527-01 . Cleaning fluid: 9-919-573-01 Preparation 1. Turn the power off. 2. Remove the upper lid. (Refer to Section 1-1-1.) 3. Remove the plate MD. (Refer to Section 1-1-1.) 4. Remove the cassette compartment. (Refer to Section 1-1-2.) GY-2120WD/WS...
Page 89 S reel brake T reel brake Tighten the two screws fixing the reel table assembly after the reel table height adjust- ment is completed. S reel motor shaft T reel motor shaft Install the Reel Table Assembly GY-2120WD/WS...
Page 90 Refer to Section 4-6. 6. Confirm the Reel Table Rotation Sensor Position Refer to Section 4-7. 7. Perform the Reel FG Duty Automatic Adjustment Refer to Section 6-5-2/Section 6-5-3. (SV02: S-Reel FG Duty Adjust/ SV03: T-Reel FG Duty Adjust) 3-10 GY-2120WD/WS...
Page 91: Brake Lining Replacement
3-184-527-01 . Cleaning fluid: 9-919-573-01 Preparation 1. Turn the power off. 2. Remove the upper lid. (Refer to Section 1-1-1.) 3. Remove the plate MD. (Refer to Section 1-1-1.) 4. Remove the cassette compartment. (Refer to Section 1-1-2.) 3-11 GY-2120WD/WS...
Page 92 Adjustment after Replacement Remove/Install the Brake Lining 7. Confirm the Reel Table Height Refer to Section 4-4. 8. Confirm the Reel Brake Clearance Refer to Section 4-5. 9. Confirm the Reel Brake Release Amount Refer to Section 4-6. 3-12 GY-2120WD/WS...
Page 93: Reel Motor Assembly Replacement
20. Perform the Reel Motor Offset/Friction Automatic Adjustment (SV05: S-Reel offset/friction Adjust/SV06: T-Reel offset/friction Adjust) (Refer to Section 6-5-5/Section 6-5-6.) 21. Perform the Reel Motor Torque Automatic Adjustment (SV07: S-Reel Torque Adjust/SV08: T-Reel Torque Adjust) (Refer to Section 6-5-7/Section 6-5-8.) 3-13 GY-2120WD/WS...
Page 94 6. Remove the MA-83 board and the DR-327 board. (Refer to Section 1-8.) Removal 1. Disconnect the Flat Cable (1) Disconnect the flat cable connected with MS- 54 board. S side: CN10 T side: CN9 Flat cable CN10 MS-54 board Disconnect the Flat Cable 3-14 GY-2120WD/WS...
Page 95 (2) Remove an E ring and remove the crank arm (B). (3) Remove the screw and remove the slide shaft holder. Crank arm (B) Reel shift plate assembly Remove the Crank Arm and Slide Shaft Holder 3-15 GY-2120WD/WS...
Page 96 5. Disconnect the Flat Cable Disconnect the flat cable connected with RM-82 board. 6. Disconnect the Connectors Disconnect the two connectors CN926 and CN927 on the RM-82 board. Connector (CN927) RM-82 board Flat cable Connector (CN926) Disconnect the Flat Cable and Connectors 3-16 GY-2120WD/WS...
Page 97 Slide shaft position of S and L cassettes for phase adjustment of the gears. Smear Grease and Install the Crank Arm (3) Install the crank arm (B) to the shaft of the crank arm (A) with an E ring. 3-17 GY-2120WD/WS...
Page 98 13. Confirm the Cassette Pillar Height S reel motor shaft T reel motor shaft Refer to Section 4-3. Install the Reel Table Assembly 14. Confirm the Reel Table Height Refer to Section 4-4. 3-18 GY-2120WD/WS...
Page 99 Automatic Adjustment Refer to Section 6-5-5/Section 6-5-6. ( SV05: S-Reel offset/friction Adjust/ SV06: T-Reel offset/friction Adjust) 21. Perform the Reel Motor Torque Automatic Adjustment Refer to Section 6-5-7/Section 6-5-8. ( SV07: S-Reel Torque Adjust/ SV08: T-Reel Torque Adjust) 3-19 GY-2120WD/WS...
Page 100: Reel Shift Motor Replacement
3. Remove the plate MD. (Refer to Section 1-1-1.) 4. Remove the cassette compartment. (Refer to Section 1-1-2.) 5. Remove the front panel. (Refer to Section 1-1-1.) 6. Remove the MA-83 board and the DR-327 board. (Refer to Section 1-8.) 3-20 GY-2120WD/WS...
Page 101 Screw (PWH3 x 8) step 2 to the reel shift assembly. (2) Tighten the three screws. Screw (PWH3 x 8) Tightening torque: 8 x 10 –2 Reel shift assembly (8 kgf.cm) Connector Connector Install the Reel Shift Assembly 3-21 GY-2120WD/WS...
Page 102 6. Confirm the Cassette Pillar Height Refer to Section 4-3. 7. Connect the Flat Cable Refer to step 15 in Section 3-2-3. Smear Grease 8. Confirm the Reel Shift Motor Operation Refer to Section 6-2. (SV17: Reel Shift Motor Check) 3-22 GY-2120WD/WS...
Page 103: Drum Block
(SV0B: RF Switching Position Adjust) (Refer to Section 6-5-11.) 21. Perform the Playback System All Adjustment (RF01: PB All Adjust) (Refer to Section 6-6-1.) 22. Perform the Recording Current Automatic Adjustment (RF05: REC Current Adjust) (Refer to Section 6-6-5.) 3-23 GY-2120WD/WS...
Page 104 Supplied with a new repair upper drum Preparation 1. Turn the power off. 2. Remove the upper lid. (Refer to Section 1-1-1.) 3. Remove the plate MD. (Refer to Section 1-1-1.) 4. Remove the cassette compartment. (Refer to Section 1-1-2.) 3-24 GY-2120WD/WS...
Page 105 (2) Turn the air stabilizer as shown in the direction (indicated by the arrow) with fingers, in which it shifts from the lower drum. (3) Tighten the air stabilizer fixing screw tenta- tively. Rotate Lower drum Air stabilizer Shift the Air Stabilizer 3-25 GY-2120WD/WS...
Page 106 If the four upper drum securing screws are not loosened completely and the hexagon screw of the upper drum remover is rotated, the lower Screw holes (B) drum may be damaged. Upper dum remover Remove the Upper Drum Assembly 3-26 GY-2120WD/WS...
Page 107 Never apply cleaning fluid to the contacting points and patterns. Patterns (Wipe with a dry cleaning cloth) . Contacting points of upper drum . Patterns of upper drum . Contacting points of lower drum Cleaning . Patterns of lower drum 3-27 GY-2120WD/WS...
Page 108 Tightening torque : 39.2 x 10 (4.0 kgf.cm) Install the Upper Drum Assembly (6) Tighten the four screws in the same sequence as in step (5) using a torque screwdriver. Tightening torque : 78.5 x 10 (8.0 kgf.cm) 3-28 GY-2120WD/WS...
Page 109 Screw (C3 x 8) (2) Tighten the two screws alternately and gradually. Heigfht determining plate Tightening torque: 78.4 (8 kgf . cm) Drum support Positioning pins Install the Height Determining Plate 3-29 GY-2120WD/WS...
Page 110 (RF01: PB All Adjust) 17. Confirm the Drum Head Height Refer to Section 5-9. 22. Perform the Recording Current Automatic Adjustment Refer to Section 6-6-5. 18. Confirm the CTL/TC Head Height (RF05: REC Current Adjust) Refer to Section 5-5. 3-30 GY-2120WD/WS...
Page 111: Brush/Slip Ring Assembly Replacement
3-184-527-01 . Cleaning fluid: 9-919-573-01 Preparation 1. Turn the power off. 2. Remove the upper lid. (Refer to Section 1-1-1.) 3. Remove the plate MD. (Refer to Section 1-1-1.) 4. Remove the cassette compartment. (Refer to Section 1-1-2.) 3-31 GY-2120WD/WS...
Page 112 (Wipe with a dry cleaning cloth.) (Wipe with a dry cleaning cloth.) cloth. Do not apply cleaning fluid to the contacting points. Contacting point (Wipe with a dry cleaning cloth.) Contact point (Wipe with a dry cleaning cloth.) Cleaning 3-32 GY-2120WD/WS...
Page 113 (CN2) Never apply excessive force to the cover. 5. Connect the Flexible Board Connect the flexible board into connector CN2 on the SE-358 board. Tightening torque : 14.7 x 10 N.m (15 kgf.cm) Install the Brush/Slip Ring Assembly 3-33 GY-2120WD/WS...
Page 114: Drum Assembly Replacement
(SV0B: RF Switching Position Adjust) (Refer to Section 6-5-11.) 21. Perform the Playback System All Adjustment (RF01: PB All Adjust) (Refer to Section 6-6-1.) 22. Perform the Recording Current Automatic Adjustment (RF05: REC Current Adjust) (Refer to Section 6-6-5.) 3-34 GY-2120WD/WS...
Page 115 3-184-527-01 . Cleaning fluid: 9-919-573-01 Preparation 1. Turn the power off. 2. Remove the upper lid. (Refer to Section 1-1-1.) 3. Remove the plate MD. (Refer to Section 1-1-1.) 4. Remove the cassette compartment. (Refer to Section 1-1-2.) 3-35 GY-2120WD/WS...
Page 116 CN612 in the state of step (4). Harness holders The drum assembly can then be removed. Remove the Drum Assembly Be careful not to touch the CTL/TC head and peripheral tape guides when removing the drum assembly. 3-36 GY-2120WD/WS...
Page 117 After cleaning, wipe with a dry cleaning cloth. Fixing screw (Cleaning) Positioning hole (Cleaning) Fixing screw (Cleaning) . Chassis Positioning pin (Cleaning) Screw hole (Cleaning) Screw hole (Cleaning) Positioning pin Screw hole (Cleaning) (Cleaning) Cleaning 3-37 GY-2120WD/WS...
Page 118 Refer to step 10 in Section 3-3-1. Positioning pin 8. Connect the Flexible Board Connect the flexible board into connector CN241 on the HN-223 board, then lock. Tightening torque : 78.4 x 10 N.m (8 kgf.cm) Install the Drum Assembly 3-38 GY-2120WD/WS...
Page 119 Refer to Section 5-6. 18. Adjust the CTL/TC Head Position Refer to Section 5-7. 19. Confirm the Tape Running Refer to Section 5-3. 20. Perform the Drum Phase Automatic Adjustment Refer to Section 6-5-11. (SV0B: RF Switching Position Adjust) 3-39 GY-2120WD/WS...
Page 120: Cleaning Roller And Rotary Head Cleaner Assembly Replacement
. CR spacer : 3-182-765-02 Preparation 1. Turn the power off. 2. Remove the upper lid. (Refer to Section 1-1-1.) 3. Remove the plate MD. (Refer to Section 1-1-1.) 4. Remove the cassette compartment. (Refer to Section 1-1-2.) 3-40 GY-2120WD/WS...
Page 121 (2) Align the two pins of the rotary head cleaner assembly with the two holes of the drum support. (3) Tighten the screw while moving the rotary head cleaner assembly in the direction indicated by the arrow B. 3-41 GY-2120WD/WS...
Page 122 Spec.3 : C = Clearance exists. (4) Repeat steps (1) through (3) above until the specifications 1 through 3 are satisfied. . When the specifications are not satisfied: Portion A (Supporting point) Portion B Video head cleaner sub assembly Cleaning Roller Position Adjustment 3-42 GY-2120WD/WS...
Page 123 (3) Fix the harness using a harness clamper (or the equivalent). Adjustment after Replacement Harness 7. Confirm the Cleaning Solenoid Rotary head Full erase Operation Sensor holder cleaner assembly head Refer to Section 6-2. (SV1B: Cleaning Roller Solenoid Check) Install the Harness 3-43 GY-2120WD/WS...
Page 124: Drum Entrance Side Block
2. Remove the upper lid. (Refer to Section 1-1-1.) 3. Remove the plate MD. (Refer to Section 1-1-1.) 4. Remove the cassette compartment. (Refer to Section 1-1-2.) 5. Remove the MA-83 board and the DR-327 board. (Refer to Section 1-8.) 3-44 GY-2120WD/WS...
Page 125 Connector (CN18) Screw (PS3 x 8) Screw (PS3 x 8) S tension regulator assembly Connector (CN1) TR-78 board Screw (PWH3 x 8) Remove the S Tension Regulator Assembly 3-45 GY-2120WD/WS...
Page 126 L cassette support spacer (S) (PWH3 x 8) with the two screws (P3 x 8). Tightening torque : 78.5 x 10 (8 kgf.cm) Harness clamper Cassette compartment mounting surface Chassis Cleaning Cleaning MS-54 board Connector (CN18) Install the S Tension Regulator Assembly 3-46 GY-2120WD/WS...
Page 127 Fixing screw floating and there is no clearance. (WP3 x 5) Install the S Tension Regulator Assembly Adjustment after Replacement 4. Adjust the Tape Running Refer to Section 5-3. 3-47 GY-2120WD/WS...
Page 128: Tape Cleaner Replacement
Remove the screw, then remove the tape cleaner Tape cleaner from the S plate assembly. S plate assembly Installation 2. Install the Tape Cleaner Tighten the screw while moving the tape cleaner clockwise. Tightening torque: 19.6 x 10 N.m (2 kgf.cm) Remove/Install the Tape Cleaner 3-48 GY-2120WD/WS...
Page 129: Threading Ring Block
CL arm assembly operation. Preparation 1. Turn the power off. 2. Remove the upper lid. (Refer to Section 1-1-1.) 3. Remove the plate MD. (Refer to Section 1-1-1.) 4. Remove the cassette compartment. (Refer to Section 1-1-2.) 3-49 GY-2120WD/WS...
Page 130 Insert the short-end spring into the groove of the threading ring and the long-end spring Groove into the hole of the CL arm assembly. (2) Fix the CL arm assembly by the stop washer. Remove/Install the CL Arm Assembly 3-50 GY-2120WD/WS...
Page 131 Shield case (2) Turn the power on and confirm that the CL arm assembly smoothly operates while CTL/TC head repeating the threading and unthreading. CL arm assembly M gear CL guide rail Confirm the CL Arm Assembly Operation 3-51 GY-2120WD/WS...
Page 132: Pinch Roller Replacement
3-184-527-01 . Cleaning fluid: 9-919-573-01 Preparation 1. Turn the power off. 2. Remove the upper lid. (Refer to Section 1-1-1.) 3. Remove the plate MD. (Refer to Section 1-1-1.) 4. Remove the cassette compartment. (Refer to Section 1-1-2.) 3-52 GY-2120WD/WS...
Page 133 (2) Fix the pinch arm assembly by the stop washer. (3) Push the pinch arm assembly manually in the direction of the drum, then release. At that time, confirm that the pinch arm assembly smoothly returns to the former position. 3-53 GY-2120WD/WS...
Page 134 Clean the pinch roller surface with a cleaning 0.05 mm to 0.2 mm cloth moistened with cleaning fluid. . Poly-slider washer for adjustment Diameter Thickness Parts No. 0.13 mm 3-701-439-01 3.0 mm 0.25 mm 3-701-439-11 Adjust the Pinch Arm Assembly Vertical Play 3-54 GY-2120WD/WS...
Page 135: Threading Ring Assembly Replacement
. Cleaning cloth: 3-184-527-01 . Cleaning fluid: 9-919-573-01 Preparation 1. Turn the power off. 2. Remove the upper lid. (Refer to Section 1-1-1.) 3. Remove the plate MD.(Refer to Section 1-1-1.) 4. Remove the cassette compartment. (Refer to Section 1-1-2.) 3-55 GY-2120WD/WS...
Page 136 SE-358 board board. Connector (CN2) Disconnect the Flexible Board and the Connector 3. Remove the Pinch Arm Guard Screw (PWH3 x 8) Remove the screw, then remove the pinch arm guard. Pinch arm guard Remove the Pinch Arm Guard 3-56 GY-2120WD/WS...
Page 137 Refer to steps 1 and 2 in Section 3-6-6. assembly Connector (CN851) 9. Remove the Gear Box Assembly PD-35 board Refer to steps 1 and 2 in Section 3-6-4. Full erase head board Remove the S Plate Assembly 3-57 GY-2120WD/WS...
Page 138 Refer to steps 3 and 4 in Section 3-6-4. 16. Confirm the Threading Ring Operation Turn the M gear of the gear box assembly manually and confirm that the threading ring and the three ring rollers rotates smoothly while repeating the threading and unthreading. 3-58 GY-2120WD/WS...
Page 139 Install the CL guide rail with two screws. Screw (B3 x 8) CL guide rail 24. Confirm the CL Arm Assembly Screw (B3 x 8) Operation Refer to step 3 in Section 3-5-1. Install the Pinch Arm Guard 3-59 GY-2120WD/WS...
Page 140 Connect the connector into the CTL/TC head SE-358 board board. Adjustment after Replacement 28. Adjust the Pinch Press Clearance Refer to Section 4-8. 29. Confirm the Tape Running Refer to Section 5-3. Connector (CN2) Connect the Flexible Board and the Connector 3-60 GY-2120WD/WS...
Page 141: Drum Exit Side Block
. Torque screwdriver’s bit (+2 mm, l=75 mm): J-6323-420-A Preparation 1. Turn the power off. 2. Remove the upper lid. (Refer to Section 1-1-1.) 3. Remove the plate MD. (Refer to Section 1-1-1.) 4. Remove the cassette compartment. (Refer to Section 1-1-2.) 3-61 GY-2120WD/WS...
Page 142 Remove the two screws, then remove the CTL/ TC head assembly from the unit. Be careful not to touch the drum (especially rotary heads). Also, take care not to damage the peripheral tape guides. Chassis Remove the CTL/TC Head Assembly 3-62 GY-2120WD/WS...
Page 143 Mode Refer to Section 5-8. 11. Adjust the CTL/TC Head Azimuth Refer to Section 5-6. 12. Adjust the CTL/TC Head Position Refer to Section 5-7. 13. Perform the PG Adjustment Refer to Section 6-2. (SV1E: Manual PG Adjustment) 3-63 GY-2120WD/WS...
Page 144: Capstan Motor Replacement
3. Remove the plate MD. (Refer to Section 1-1-1.) 4. Remove the cassette compartment. (Refer to Section 1-1-2.) 5. Remove the front panel. (Refer to Section 1-1-1.) 6. Remove the bottom plate. (Refer to Section 1-1-1.) 7. Remove the MA-83 board. (Refer to Section 1-8-1.) 3-64 GY-2120WD/WS...
Page 145 (1) Put the unit on its left side panel down, Screws remove the three screws, and open the DR- (PWH3 x 6) 327 board with the side panel of the unit down. DR-327 board Open the DR-327 Board 3-65 GY-2120WD/WS...
Page 146 Capstan motor shaft Capstan motor the hole of the chassis. (2) Connect the connector disconnected in (1) of ..Back side step 3 to the capstan motor board. Capstan motor board Connector Remove/Install the Capstan Motor 3-66 GY-2120WD/WS...
Page 147 Refer to Section 6-2. (SV15: Capstan Motor Check) 11. Perform the Capstan FG Duty Automatic Adjustment Refer to Section 6-5-4. (SV04: Capstan FG Duty Adjust) 12. Perform the Free Speed Automatic Adjustment Refer to Section 6-5-10. (SV0A: Free Speed Adjust) 3-67 GY-2120WD/WS...
Page 148: Pinch Press Assembly Replacement
6. Adjust the Pinch Press Clearance (Refer to Section 4-8.) Preparation 1. Turn the power off. 2. Remove the upper lid. (Refer to Section 1-1-1.) 3. Remove the plate MD. (Refer to Section 1-1-1.) 4. Remove the cassette compartment. (Refer to Section 1-1-2.) 3-68 GY-2120WD/WS...
Page 149 Screw (PSW3 x 8) board. Screw (PSW3 x 8) 2. Remove the Pinch Press Assembly Remove the two screws, then remove the pinch press assembly from the unit. PD-35 board CN854 Pinch press assembly Remove the Pinch Press Assembly 3-69 GY-2120WD/WS...
Page 150 Pinch press assembly Install the Pinch Press Assembly Adjustment after Replacement 5. Confirm the Pinch Solenoid Operation Refer to Section 6-2. (SV18: Pinch Roller Solenoid Check) 6. Adjust the Pinch Press Clearance Refer to Section 4-8. 3-70 GY-2120WD/WS...
Page 151: Gear Box Assembly Replacement
5. Confirm the Threading Motor Operation (SV13: Threading Motor Check) (Refer to Section 6-2.) Preparation 1. Turn the power off. 2. Remove the upper lid. (Refer to Section 1-1-1.) 3. Remove the plate MD. (Refer to Section 1-1-1.) 4. Remove the cassette compartment. (Refer to Section 1-1-2.) 3-71 GY-2120WD/WS...
Page 152 CCM-15 board and CN904 on the PTC-54 board. Gear box assembly 2. Remove the Gear Box Assembly Screw Loosen the two screws, then remove the gear box PTC-54 board (PWH3 x 8) assembly. CN904 Screw (PWH3 x 8) Remove the Gear Box Assembly 3-72 GY-2120WD/WS...
Page 153 CN920 on the CCM-15 board and connector CN904 on the PTC-54 board. CN904 Screw (PWH3 x 8) Install the Gear Box Assembly Adjustment after Replacement 5. Confirm the Threading Motor Operation Refer to Section 6-2. (SV13: Threading Motor Check) 3-73 GY-2120WD/WS...
Page 154: T Tension Arm Replacement
3-184-527-01 . Cleaning fluid: 9-919-573-01 Preparation 1. Turn the power off. 2. Remove the upper lid. (Refer to Section 1-1-1.) 3. Remove the plate MD. (Refer to Section 1-1-1.) 4. Remove the cassette compartment. (Refer to Section 1-1-2.) 3-74 GY-2120WD/WS...
Page 155 In this case, return the poly-slider washer to Poly-slider washer the shaft. (2) Take out the bearing and unhook the two tension springs from the T tension arm. Remove the T Tension Arm 3-75 GY-2120WD/WS...
Page 156 Confirm that the roller of the T tension regulator does not come off from the side of the threading ring and operates normally while repeating T tension base threading and unthreading. 1 Spring 2 Spring Roller Hook the Tension Springs 3-76 GY-2120WD/WS...
Page 157: T Drawer Arm Replacement
. Slide calipers (or the equivalent) Preparation 1. Turn the power off. 2. Remove the upper lid. (Refer to Section 1-1-1.) 3. Remove the plate MD. (Refer to Section 1-1-1.) 4. Remove the cassette compartment. (Refer to Section 1-1-2.) 3-77 GY-2120WD/WS...
Page 158 Refer to step 2 in Section 3-1-3. (PWH3 x 8) 2. Remove the T Drawer Assembly (1) Cut the harness clamper, then disconnect the connector. (2) Remove the two screws, then remove the T drawer assembly. Remove the T Drawer Assembly 3-78 GY-2120WD/WS...
Page 159 (2) Put the T drawer arm assembly on the chassis, then tighten the two screws. (3) Connect the connector as shown in the figure. (4) Bind the harness with the harness clamper (or the equivalent). Install the T Drawer Assembly 3-79 GY-2120WD/WS...
Page 160 (Specification 2) Threading ring If the specification 2 is not satisfied, adjust Confirm the T Drawer Assembly Operation the height and the vertical play of the T drawer arm. (Refer to T drawer arm height adjustment.) 3-80 GY-2120WD/WS...
Page 161 Less than 0.2 mm * If the specifications 1 and 2 are not satisfied: . Poly-slider washer for adjustment Diameter Thickness Parts No. 0.13 mm 3-701-439-01 3.0 mm 0.25 mm 3-701-439-11 0.5 mm 3-701-439-21 T Drawer Arm Height Adjustment 3-81 GY-2120WD/WS...
Page 162 In these cases, the confirmation described above, step 7, is not required. T drawer assembly Spec.3 : 0.2 mm (Between arm stopper and arm) T Drawer Arm Height Adjustment Adjustment after Replacement 5. Adjust the Slant Guide Slantness Refer to Section 4-9. 3-82 GY-2120WD/WS...
Page 163: Overall Block
1. Remove the Rear Panel Refer to Section 1-7. Rear panel CN254 2. Disconnect the Connector EX-603 board Disconnect the connector CN254 on the EX-603 board. B3 x 6 B3 x 6 B3 x 6 B3 x 6 Remove the Rear Panel 3-83 GY-2120WD/WS...
Page 164 B3 x 6 Tightening torque : 8 x 10 N.m (8 kgf.cm) B3 x 6 Be careful not to pinch the harness between the fan panel and the chassis. B3 x 6 B3 x 6 Install the Rear Panel 3-84 GY-2120WD/WS...
Page 165: Air Filter Replacement
Removal 1. Remove the Air Filter Assembly Remove the air filter assembly from the rear panel while pressing the hook on the left in the direction of the arrow. Hook Air filter assembly Remove the Air Filter Assembly 3-85 GY-2120WD/WS...
Page 166 Fit a new air filter assembly to the four Positioning point positioning points on the rear panel, and attach Air filter assembly the air filter assembly while pushing the hook. Positioning point Hook Positioning point Install the Air Filter Assembly 3-86 GY-2120WD/WS...
Page 167: Mechanical Alignment
. Be careful not to damage the tool. If the flawed tool is used, adjustment cannot be performed correctly. 3. Connection (except measuring equipment) RS-232C Port RS-232C PC *1 GY-2120WD/ 2120WS Display, Key board 1: Refer to Section 6-1-1 regarding a PC (IBM PC/AT-compatible machine). 2: Refer to Section 1-4 regarding an RS-232C cable.
Page 168: Reel Motor Shaft Slantness Adjustment
1. If the specification is not satisfied, perform steps Reel motor shaft 6 through 10. Cassette reference plate (L) Spec.1: (L cassette position) A < 0.03 mm Reel Motor Shaft Slantness Check (L) GY-2120WD/WS...
Page 169 9. Tighten Screws Assembly Gradually tighten the three screws loosened in step 6. Reel motor Tightening torque: 68.6 x 10 N.m(7 kgf.cm) Reel Motor Shaft Slantness Adjustment 10. Recheck the Reel Motor Shaft Slantness Refer to steps 2 through 5. GY-2120WD/WS...
Page 170: Cassette Pillar Height Adjustment
(2) Check with an adjustment mirror that there are no clearances between the S and T cassette pillars and the reference plate. If the specification is not satisfied, perform steps 4 through 6. GY-2120WD/WS...
Page 171 Check that the height of the S and T cassette pillars satisfies the specification. Cassette Pillar Height Adjustment Shift the tightening position of the fixing screw when performing readjustment with the specifica- tion not satisfied. (Do not tighten the screw in the same position as previous.) GY-2120WD/WS...
Page 172: Reel Table Height Adjustment
(2) Check that the specification is satisfied while Reel Table Height Check (L) rotating the supply reel table counter-clock- wise by one turn. If the specification is not satisfied, perform steps 7 and 8. GY-2120WD/WS...
Page 173 Reel table Reel table height Flange check gauge Cassette reference plate (L) Spec.: The*marked portion of the gauge slide over the flange of the reel table. The**marked portion of the gauge does not slide over. Reel Table Height Check (S) GY-2120WD/WS...
Page 174 0.5 mm 3-701-441-21 the bottom of the reel table assembly along the groove of the reel shift plate and tighten Reel Table Height Adjustment the two screws. 11. Recheck the Reel Table Height Refer to steps 2 through 6. GY-2120WD/WS...
Page 175: Reel Brake Clearance Check
If no clearance occurs, replace the brake lining. (Refer to Section 3-2-2.) T reel table Brake arm block Boss Spec.: A = Clearance exists. Brake arm block S reel table Brake arm block Boss Spec.: A = Clearance exists. Brake arm block Reel Brake Clearance Check GY-2120WD/WS...
Page 176: Reel Brake Release Amount Adjustment
(Specification 1) If specification 1 is not satisfied, perform steps 3 and later. Brake linings Spec.1: The brake lining doesn't touch a reel table while reel table rotating Reel Brake Release Amount Check 4-10 GY-2120WD/WS...
Page 177 10. Check the Cassette Pillar Height Brake arm block Refer to Section 4-3. Spec.2: A = 0.6 to 1.8 mm 11. Check the Reel Table Height (Solenoid energized position) Refer to Section 4-4. Reel Brake Release Amount Adjustment 4-11 GY-2120WD/WS...
Page 178: Reel Table Rotation Sensor Position Adjustment
Check that the clearance between the reel table and the reel table rotation sensor satisfies the specification 1. If the specification 1 is not satisfied, perform steps 4 and later. Spec.1: A = 0.1 to 0.15 mm Reel Table Rotation Sensor Clearance Check 4-12 GY-2120WD/WS...
Page 179 If the specification 2 is not satisfied, perform steps 4 and later. mode TAPE mark MARK SERCH FFWD STOP Stby EJECT Spec. 2: Level value : A > 35 mVp-p Level fluctuation : A/B > 80% Reel FG Output Level Check 4-13 GY-2120WD/WS...
Page 180 (1) Insert the thickness gauge (t=0.1 mm) between the reel table rotation sensor and the reel table. (2) Rotate the reel table, and check that it rotates smoothly. (3) Recheck that the specifications 1 and 2 are satisfied referring to steps 1 through 3. 4-14 GY-2120WD/WS...
Page 181: Pinch Press Clearance Adjustment
If the specification is not satisfied, perform steps 3 and later. Pinch roller Pinch limiter Iron core Pinch press lever Spec.: A = 0.6 to 0.8 mm Pinch Press Clearance Check 4-15 GY-2120WD/WS...
Page 182 Notch 5. Tighten Screws Tighten the two screws loosened in step 3. Pinch limiter 6. Recheck the Pinch Press Clearance Refer to steps 1 and 2. Pinch Press Clearance Adjustment 4-16 GY-2120WD/WS...
Page 183: Slant Guide Slantness Adjustment
Refer to Section 1-10 for details of the operation. Tools . Cassette reference plate (L)(MW-088): J-6320-880-A . Tension regulator slantness check tool (BW-080): J-6190-800-A . Thickness gauge: 9-911-053-00 . Cleaning cloth: 3-184-527-01 . Cleaning fluid: 9-919-573-01 . Locking compound: 7-432-114-11 . DTF cassette tape (L cassette) 4-17 GY-2120WD/WS...
Page 184 0.15 mm < A < 0.25 mm tension regulator slantness check tool. <Direction B> 4. Cleaning Clean the slant guide with a cleaning piece moistened with cleaning fluid. Spec.2: 0.15 mm < B < 0.25 mm Slant Guide Slantness Check 4-18 GY-2120WD/WS...
Page 185 If the specification 3 is not satisfied, perform step 7 and later. Slant guide TG-10 guide L cassette tape Upper flange Tape Lower flange TG-10 guide Spec.3: The tape runs not in contact with the upper and lower flanges. Tape Running Check at TG-10 Guide 4-19 GY-2120WD/WS...
Page 186 3 at TG-10 guide. If the specification 3 is not satisfied, repeat steps 7 through 10 mentioned above. 11. Apply Locking Compound Apply locking compound to the fixing screw of the adjustment plate. 4-20 GY-2120WD/WS...
Page 187: Tape Path Alignment
. Rotary heads (Refer to Section 2-1-2.) . Tape running surface and lead portion of lower drum (Refer to Section 2-1-3.) . Stationary heads (Refer to Section 2-1-4.) . Tape running system and tape cleaner (Refer to Section 2-1-5.) GY-2120WD/WS...
Page 188: Connection (Except Measuring Equipment)
5-1. General Information for Tape Path Alignment 5-1-3. Connection (except measuring equipment) RS-232C Port RS-232C GY-2120WD/ 2120WS Display, AC IN Key board PC : IBM PC/AT (*1) compatible machine 5-1-4. Parts Location of the Tape Running System TG-3 (Exit guide)
Page 189: Locking Compound
When loosing the following screws, apply locking compound to the screws after adjustment is completed. The locking compound that applied to other surrounding parts must be wiped off with gauze or soft cloth. . Locking compound : 7-432-114-11 CTL/TC head T drawer arm (Slant guide) S tension regulator GY-2120WD/WS...
Page 190: Ctl/Tc Head Zenith Adjustment
(1). CTL/TC head If the specification is not satisfied, perform steps 3 and later. If it is satisfied, perform step 7. Flatness plate Spec.: A = No clearance. B = No clearance. CTL/TC Head Zenith Check GY-2120WD/WS...
Page 191 Clean the surface of the CTL/TC head, erase head and TG-4 guide with a cleaning cloth moistened with cleaning fluid. Flatness CTL/TC head Zenith adjustment screw plate * Removal/Installation of the CL guide rail B3 x 8 CL guide rail B3 x 8 CTL/TC Head Zenith Adjustment GY-2120WD/WS...
Page 192: Tape Running Adjustment
The tape curl is less than 1/10 of the tape width. If specification 1 is not satisfied, perform Lead of drum entrance side steps 4 and 5. The tape runs without any curl at the lead. Tape Running Check at Drum Entrance Side GY-2120WD/WS...
Page 193 5. Recheck the Tape Running at Drum Entrance Side Refer to step 3. If the specification 1 is not satisfied, perform the adjustment in step 4 again. TG-1 TG-2 TG-0 Height adjustment nut Tape Running Adjustment at Drum Entrance Side GY-2120WD/WS...
Page 194 3 at the TG-10 guide Check that the tape running condition and the T tape guide of an L cassette. satisfies specification 2. If specification 3 is not satisfied, perform step If specification 2 is not satisfied, perform steps 7 and 8. GY-2120WD/WS...
Page 195 The tape runs not in contact with the upper and lower flanges. Take-up side tape guide of cassette The tape runs without any curl at the upper and lower portions of the tape guide. Tape Running Check at Drum Exit Side GY-2120WD/WS...
Page 196 Refer to steps 3 through 7. If the specification 2 is not satisfied, perform the adjustment in step 6 again. (If the specification 2 is not satisfied in S-1 mode and S-5 mode , perform the adjustment in step 7 again.) 5-10 GY-2120WD/WS...
Page 197 Slant guide PSW3 x 8 Notch Adjustment plate * TG-5 height adjustment (only when the specification is not satisfied in S-1 mode and S-5 mode) <Unthreading end mode> TG-5 (Threading roller) Tape Running Adjustment at Drum Exit Side 5-11 GY-2120WD/WS...
Page 198: Tracking Adjustment
<EQ-66 board, side A> TRIG: TP602/EQ-66 board (1/2 VD signal) TP602 3. Set the Alignment Tape TP202 Set the YR2-1 and put a weight (about 1000 g) on the cassette so that it does not rise up. Preparation 5-12 GY-2120WD/WS...
Page 199 Fluctuation amounts (a, b, c) at the drum center portion, entrance side and exit side (5) Press the [F8] key of the PC to terminate the are less than 20% of the average level (D). tracking adjustment mode. - To be continued. - 5-13 GY-2120WD/WS...
Page 200 TG-4 is less than 1/10 of the tape width. TG-4 (Spec.4) If the specification 4 is not satisfied, adjust the height of TG-5. Spec.4: Lower flange of TG-4 The tape curl is less than 1/10 of the tape width. Tracking Check (S-1 → FWD) 5-14 GY-2120WD/WS...
Page 201 TG-4 is less than 1/10 of the tape width. TG-4 (Spec.7) If the specification 7 is not satisfied, adjust the height of TG-5. Spec.7: Lower flange of TG-4 The tape curl is less than 1/10 of the tape width. Tracking Check (S-1 → FWD) 5-15 GY-2120WD/WS...
Page 202 72000 to 90000). (FWD mode) (3) Check that the RF envelope waveform output at all channels. * Alignment tape: YR2-1 (IRD : 72000 to 90000) Spec.8: The RF envelope waveform output at all channels . PB Head Head -to-tape Contact Check 5-16 GY-2120WD/WS...
Page 203 . Alignment tape: YR2-1 (IDR : 0 to 72000) <Fig.1> RF max 80 to 100%(=RF max x 0.8) Marker If the pressure against the tape at TG-1 and 2 are too much, the waveform becomes as shown in the right figure. (NG) <Fig.2> Marker 5-17 GY-2120WD/WS...
Page 204 2 Perform the tracking adjustment again. (Refer to step (1) through (7) mentioned above.) (8) Press the [8] key of the PC to exit the track- ing adjustment mode. 8. Recheck the Tracking Refer to steps 5 through 6. 5-18 GY-2120WD/WS...
Page 205 5-4. Tracking Adjustment Drum Exit Side 9. Remove the CL Guide Rail Remove the two screws, then remove the CL guide rail. B3 x 8 CL guide rail B3 x 8 Removal/Installation of the CL Guide Rail 5-19 GY-2120WD/WS...
Page 206 - To be continued. - 0 < B < 0.2 <Fig. 2> Maker If the pressure against the tape at TG-3 is too much, the waveform becomes as shown in the right figure. (In this case, it is NG) 5-20 GY-2120WD/WS...
Page 207 (1) through (9) mentioned above.) (10)Press [8] key of the PC to exit the tracking adjustment mode. 11. Recheck the Tracking Refer to step 5. 12. Install the CL Guide Rail Install the CL guide rail with two screws. 5-21 GY-2120WD/WS...
Page 208: Ctl/Tc Head Height Adjustment
TRIG: TP602/EQ-66 board (1/2 VD signal) <EQ-66 board, side A> TP704 3. Set the Alignment Tape TP602 Set the YR2-1 and put a weight (about 1000 g) on the cassette so that it does not rise up. Preparation 5-22 GY-2120WD/WS...
Page 209 B of the tape is pushed up. If the level increases, perform step 7. <CTL Output waveform> A > 5 V p-p Spec. : The level decreases when pressing down and pushing up the alignment tape. CTL/TC Head Height Check 5-23 GY-2120WD/WS...
Page 210 Refer to Section 5-7. 11. Check the CTL/TC Head Height Refer to steps 6 and 7 in this section. maximize 12. Check the CTL/TC Head Azimuth Refer to Section 5-6. <Fig. 2> Height adjustment screw maximize CTL/TC Head Height Adjustment 5-24 GY-2120WD/WS...
Page 211: Ctl/Tc Head Azimuth Adjustment
CH-2 : TP705/EQ-66 board (RSYC signal) CH-2: TP705/EQ-66board (RSYC signal) <EQ-66 board, side A> TP705 3. Set the Alignment Tape TP710 Set the YR2-1 and put a weight (about 1000 g) on the cassette so that it does not rise up. Preparation 5-25 GY-2120WD/WS...
Page 212 CTL signal and falling edge of RSYC signal satisfies the specification. If the specification is not satisfied, perform steps 7 and later. CTL/TC head CTL PLS (TP710/EQ-66) RSYC (TP705/EQ-66) Spec. : A = 5 ±50 us CTL/TC Head Azimuth Check 5-26 GY-2120WD/WS...
Page 213 Refer to Section 5-5. Portion A Azimuth adjustment screw 10. Check the CTL/TC Head Azimuth Refer to steps 6 and 7 in this section. CTL PLS (TP710/EQ-66) RSYC (TP705/EQ-66) Spec. : A = 5 ±50 us CTL/TC Head Azimuth Adjustment 5-27 GY-2120WD/WS...
Page 214: Ctl/Tc Head Position Adjustment
<EQ-66 board, side A> TRIG: TP602/EQ-66 board (1/2 VD signal) TP602 TP202 3. Set the Alignment Tape TP100 Set the YR2-1 and put a weight (about 1000 g) on the cassette so that it does not rise up. Preparation 5-28 GY-2120WD/WS...
Page 215 If the specification is not satisfied, perform steps 7 and later. 1/2 VD (TP602/EQ-66) Spec. : When the tracking control volume is fixed, the output level in the center portion of the RF envelope waveform is maximum. CTL/TC Head Position Check 5-29 GY-2120WD/WS...
Page 216 13. Check the CTL/TC Head Height 1/2 VD (TP602/EQ-66) Refer to Section 5-5. CTL/TC Head Position Adjustment 14. Check the CTL/TC Head Azimuth Refer to Section 5-6. 15. Check the CTL/TC Head Position Refer to steps 5 and 6 in this section. 5-30 GY-2120WD/WS...
Page 217: Time Code Level Adjustment In Rev Mode
CH-1 : TP703/EQ-66 board (LTC ANA signal) CH-1: TP703/EQ-66 board (LTC ANA signal) <EQ-66 board, side A> 3. Set the Alignment Tape TP703 Set the YR2-1 and put a weight (about 1000 g) on the cassette so that it does not rise up. Preparation 5-31 GY-2120WD/WS...
Page 218 8. Check the Time Code Output Level Spec.1: B x 100 > 70% Check that the time code output level B satisfies specification 1. Time Code Level Check in REV Mode If the specification 1 is not satisfied, perform steps 9 and later. 5-32 GY-2120WD/WS...
Page 219 The tape runs in contact with the lower flange. The tape curl is less than 1/10 of the tape width. TG-5 (Threading roller) The tape runs without any curl at the lower flange. Time Code Level Adjustment in REV Mode 5-33 GY-2120WD/WS...
Page 220: Drum Head Height Check
TRIG: TP602/EQ-66 board (1/2 VD signal) <EQ-66 board, side A> 3. Set the Alignment Tape TP602 Set the YR2-1 and put a weight (about 1000 g) TP202 TP100 on the cassette so that it does not rise up. Preparation 5-34 GY-2120WD/WS...
Page 221 (TP100/EQ-66) stall the upper drum assembly. (Refer to Section A ch C ch 3-3-1.) Spec. : “C” > 0.85 x “A” (4) Press [F8] key of the PC to exit the tracking adjustment mode. Drum Head Height Check 5-35 GY-2120WD/WS...
Page 222: Erase Signal Check
CH-1: TP708/EQ-66 board (CH ERASE) TP708 CH-2: TP706/EQ-66 board 1 LV701 TP706 4. Insert a blank tape. Set the blank tape and put a weight (about 1000 g) on the cassette so that it does not rise up. Preparation 5-36 GY-2120WD/WS...
Page 223 Maximize the CH ERASE output level using Level A = 400 ±80 mVp-p 1LV701 on the EQ-66 board. Frequency 42 ±4 kHz 8. After adjustment is completed, check CH ERASE Signal Check that a CH ERASE signal satisfies the specification. 5-37 GY-2120WD/WS...
Page 225: Outline
. Terminal emulator software (compatible with DEC VT100) . GY-2120 control software (remo.exe) . YR2-1 (Alignment tape) : Sony part No. 8-960-074-11 . YR5-1 (Alignment tape) : Sony part No. 8-960-074-01 . Recording tape (Cassette tape for DTF) RS-232C Port...
Page 226 In other words, Mount Count indicates the number of back ups (= Migra- tion), Mount Count _ Overwrite Counter, Restore (= Reload). Mount Count [ : Value counting up when mounted. Volume OWC [ : Volume (Partition) Over Write Counter Always “0” if not Multi Volume (Partition) GY-2120WD/WS...
Page 227: Activation Of Maintenance Mode
Confirm that “MDRV=>” is displayed on the PC, then enter “2” and press the ENTER key. Termination : Enter “QUIT” from the PC and press the ENTER key. Confirm that “MDRV=>” is displayed on the PC, then enter “QUIT” and press the ENTER key. GY-2120WD/WS...
Page 228: Command Description
4 : Other history 5 : Serial Command sequence 97 : Bus Error Counter 98 : Media Error Counter clear : clear log upload : log upload alog : All log upload help : Display help quit : Quit GY-2120WD/WS...
Page 229 87 : Status Log Upload 88 : Time Code Log Upload 95 : SV Log display 96 : Base Mode Log Display 97 : Status Log Display 98 : Time Code Log Display 2 : SV/RF Maintenannce Mode + GY-2120WD/WS...
Page 230 : RF NV-RAM Load RF09 : RF Initial Data Set hours : Hours Meter : Hours Meter Reset savehours : Save Hours Meter presethours : Preset Hours Meter : System Error Code Check help : Display help quit : Quit GY-2120WD/WS...
Page 231: Self-Diagnosis Mode (Diag)
<< IF CPU >> << Bank Memory Check >> 51: All Check 41: Bank Memory Check 52: ROM Check 53: RAM Check Copyright (c) 19 , SONY Corp. | +=============================================================================+ Function List Display in Self-diagnosis Mode using Help Command GY-2120WD/WS...
Page 232 | OFF | OFF | OFF | OFF | - | - | - | - | +-------------+-----+-----+-----+-----+-----+-----+-----+-----+ | IF S202 | OFF | OFF | OFF | OFF | OFF | OFF | OFF | OFF | +-------------+-----+-----+-----+-----+-----+-----+-----+-----+ DIAGNOSTIC=> GY-2120WD/WS...
Page 233 This is a meter for periodic maintenance of the GY-2120. The meter can be reset by the GY-2120. Threading : Sum of threading (Resettable) This is a meter for periodic maintenance of the GY-2120. The meter can be reset by the GY-2120. GY-2120WD/WS...
Page 234 Serial Number Display (Self-diagnosis command No. 6) Enter “6” as a command number and press the ENTER key. The serial number set in the GY-2120 is displayed as shown below. DIAGNOSTIC=>6 *** [ SERIAL NUMBER DISPLAY ] Serial No. : 00010001 DIAGNOSTIC=> 6-10 GY-2120WD/WS...
Page 235 -------[ LCD Check ]------- LCD Test ******** OK DIAGNOSTIC=>_ In case that the check succeeds; Message “OK” is displayed. In case that the check fails; Message “ERROR!!(STRING:xxxxxxxxxxxxxxxx)” is displayed. “xxxxxxxxxxxxxxxx” indicates the character string displayed on the LCD. 6-11 GY-2120WD/WS...
Page 236 ROM Check DIAGNOSTIC=>_ In case that the check succeeds; Message“OK” is displayed. In case that the check fails; Message “ERROR!!” is displayed. In this case, stop the GY-2120 operation immediately. Moreover, replace the MA-83 board which mounts the ROM. 6-12 GY-2120WD/WS...
Page 237 The sum of RAMs in a SCSI CPU block is checked automatically. DIAGNOSTIC=>16 -------[ RAM Check(SCSI CPU) ]------- Start DIAGNOSTIC=>_ In case that the check succeeds; Message “OK” is displayed. In case that the check fails; Message “ERROR!!(error count:xxxxxxxx)” is displayed. “xxxxxxxx” indicates the number of error words. 6-13 GY-2120WD/WS...
Page 238 ******** OK ******** DIAGNOSTIC=>_ In case that the check succeeds; Message “SCSI CPU Test ******** OK ********” is displayed lastly. In case that the check fails; Refer to “In case that the check fails;” of the each corresponding command (number). 6-14 GY-2120WD/WS...
Page 239 -------[ RAM Check(SYS CPU) ]------- ******** OK RAM Check DIAGNOSTIC=>_ In case that the check succeeds; Message “OK” is displayed. In case that the check fails; Message “ERROR!!(error count:xxxxxxxx)” is displayed. “xxxxxxxx” indicates the number of error words. 6-15 GY-2120WD/WS...
Page 240 ******** OK ******** DIAGNOSTIC=>_ In case that the check succeeds; Message “SYS CPU Test ******** OK ********” is displayed lastly. In case that the check fails; Refer to “In case that the check fails;” of the each corresponding command (number). 6-16 GY-2120WD/WS...
Page 241 There are two loopback routes in the EQ-66 board and one loopback route in the MA-83 board. GY-2120 ASIC ASIC REC curr encoder encoder encoder conv. control heads DATA BUS EQ-LP1 MA-LP1 EQ-LP2 ASIC decoder decoder conv. conv. heads : Loopback route Mimic Diagram of Loopback Route 6-17 GY-2120WD/WS...
Page 242 1: Indication on this part changes in the order of “INC”->”aa55"->”00ff”->”RANDOM” according to the test data during execution. In case that the check succeeds; Message “OK” is displayed. In case that the check fails; Message “ERROR!!(error count:xxxxxxxx)” is displayed. “xxxxxxxx” indicates the number of error words. 6-18 GY-2120WD/WS...
Page 243 ******** OK ******** LP Test DIAGNOSTIC=>_ In case that the check succeeds; Message “LP Test ******** OK ********” is displayed lastly. In case that the check fails; Message “ERROR!!(error count:xxxxxxxx)” is displayed. “xxxxxxxx” indicates the number of error words. 6-19 GY-2120WD/WS...
Page 244 -------[ Bank Memory Check ]------- Bank Memory ******** OK DIAGNOSTIC=>_ In case that the check succeeds; Message “OK” is displayed. In case that the check fails; Message “ERROR!!(error count:xxxxxxxx)” is displayed. “xxxxxxxx” indicates the number of error words. 6-20 GY-2120WD/WS...
Page 245 The work memory of the IF CPU is checked automatically. DIAGNOSTIC=>53 -------[ IF CPU RAM Check ]------- Start DIAGNOSTIC=>_ In case that the check succeeds; Message “OK” is displayed. In case that the check fails; Message “ERROR!!(error count:xxxxxxxx)” is displayed. “xxxxxxxx” indicates the number of error words. 6-21 GY-2120WD/WS...
Page 246 ******** OK ******** DIAGNOSTIC=>_ In case that the check succeeds; Message “IF CPU Test ******** OK ********” is displayed lastly. In case that the check fails; Refer to “In case that the check fails;” of the each corresponding command (number). 6-22 GY-2120WD/WS...
Page 247: Log Display Mode
| 5: Serial Command Sequence | 97: Bus Error Counter 98: Media Error Counter Copyright (c) 19 , SONY Corp. | +============================================================================+ Function List Display in Log Display Mode using Help Command Clear command This command is used to clear the contents of all logs. To execute this clear command, enter “clear” and press the ENTER key.
Page 248 34800 bps : Approx. 3 minutes 9600 bps : Approx. 6 minutes < MDRV MENU > SV/RF Maintenance Mode (2) Abort Reason Code display arc * : Functions added after GY1.10. ( ) : Contains the command number. 6-24 GY-2120WD/WS...
Page 249 3 Description of key entry P : Displays the previous log. T : Displays the top log. B : Displays the bottom log. Q : Quits this log command. For except the above, the following logs are displayed. 6-25 GY-2120WD/WS...
Page 250 [CLR -] : Indicates that all packets were put into the unused state. : Command from SCSI CPU to SYS CPU. (Hexadecimal display) (Refer to “Commands to SYS CPU”) INFORMATION : Indicates the argument for each command. BOOT : Number of boots increased by one when GY-2120 is started. 6-26 GY-2120WD/WS...
Page 251 IDC SENSE Obtains the value of the ID Reader at the current tape position D (19) LONGITUDINAL SEARCH Searches whether the CTL/LTC is present or not D (1A) IN POINT SET Sets the read/write ID specified by PREROLL again 6-27 GY-2120WD/WS...
Page 252 Block which carries out data processing such as C1/C2 encoding which adds data to the ECC (Error Correction Code) and C1/C2 decoding which decodes the data using ECC. . Parity error Error of data detected at the data receiving side by the parity bit added to the data at the side sending the data. 6-28 GY-2120WD/WS...
Page 253 Different from the completed state when tape operations complete 0000017F Time-out after waiting for the instructed tape operations to start/end 000001BB Could not eject the cassette when executing the servo adjustment/check command. 000001Cy Error occurred at initial check (y: initial check error code) 6-29 GY-2120WD/WS...
Page 254 GOOD : Normal end : check condition state RESET : SCSI BUS RESET occurred WIDE : WIDE negotiations were carried out SYNC : Sync transfer negotiations were carried out BOOT : Number of boots increased by one when GY-2120 is started 6-30 GY-2120WD/WS...
Page 255 2 Description of key entry P : Displays the previous log. T : Displays the top log. B : Displays the bottom log. Q : Quits this log command. For except the above, the following screen is displayed. 6-31 GY-2120WD/WS...
Page 256 3 Description of key entry P : Displays the previous log. T : Displays the top log. B : Displays the bottom log. Q : Quits this log command. For except the above, the following screen is displayed. 6-32 GY-2120WD/WS...
Page 257 The maintenance mode was used. Make DIT Fail!! - Error Code = xxxxxxxx Could not create new volume due to error. Error Code → Displays the SCSI error code in 4 bytes Make New DIT Complete!! Created new DIT. 6-33 GY-2120WD/WS...
Page 258 1 bit error occurred at the memory, and it was corrected. Error above 2 bits occurred. Warning!! - Parity Error Retry OK Parity error occurred during data transfer between the PR and memory. Write (2-port) Fail!! The SYS CPU failed in writing. 6-34 GY-2120WD/WS...
Page 259 Block table managed by DTF. Displayed in HEX. TopID [XXXXXX] Position inside the bank with the error. Unit is ID. VolCnt [XXX] Number of volumes in the tape VolNo. [XXX] Targetted volume number wide : X Wide mode 6-35 GY-2120WD/WS...
Page 260 : Abbreviation of command received EXTST : GET EXTENDED STATUS (command : b7h) HOURS : GET HOURS METERS (command : b1h) CHGCD : CHANGE CONDITION (command : b5h) : INQUIRY (command : 12h) RQSNS : REQUEST SENSE (command : 03h) 6-36 GY-2120WD/WS...
Page 261 : Status of command executed. BUSY 3 Description of key inputs P : Displays the previous screen T : Displays the top log B : Displays the last log Q : Ends the log command All others display the next screen. 6-37 GY-2120WD/WS...
Page 262 |PARITY-3 ERROR (Hex)|00000000|FRAMMING-1 ERROR (Hex)|00000000| |-------------------------------+-------------------------------| |FRAMMING-0 ERROR (Hex)|00000000| |-------------------------------+-------------------------------| |PARITY-D ERROR (Hex)|00000000| |-------------------------------+-------------------------------| |FEDC-2 ERROR (Hex)|00000000|FEDC-2 ERROR (Hex)|00000000| |-------------------------------+-------------------------------| |CEDC-2 WARNNING (Hex)|00000000|CEDC-2 WARNNING (Hex)|00000000| +===============================================================+ . The 97 BUS ERROR COUNTER is the data bus error counter value. (Initialized by clear) 6-38 GY-2120WD/WS...
Page 263 EDC-ENC (5) (4) FIFO-1 ALDC A-FIFO D-FIFO (1)PARITY-4 error/FRAM-1 error (2)PARITY-5 error/FRAM-2 error (3) FEDC-1 error/CEDC-1 warning (4) PARITY-2 error (5) ALDC parity error (6) FAS parity error (7) SCSI parity error (host computer) (8) FEDC-2 error/CEDC-2 warning 6-39 GY-2120WD/WS...
Page 264 |C1 Burst (Ach) (Hex)|00000000|C1 Burst (Ach) (Hex)|00000000| |-------------------------------+-------------------------------| |C1 Burst (Bch) (Hex)|00000000|C1 Burst (Bch) (Hex)|00000000| |-------------------------------+-------------------------------| |C1 Burst (Cch) (Hex)|00000000|C1 Burst (Cch) (Hex)|00000004| |-------------------------------+-------------------------------| |C1 Burst (Dch) (Hex)|00000000|C1 Burst (Dch) (Hex)|00000000| |-------------------------------+-------------------------------| |C2 Error (Hex)|00000000|C2 Error (Hex)|00000000| +===============================+===============================+ 6-40 GY-2120WD/WS...
Page 265 5 bytes in one block. Consequently, the C1 burst serves as an index for the burst error which occurs in each channel. Blocks which could not be corrected by the C1 decoder are done so by the C2 decoder. 6-41 GY-2120WD/WS...
Page 266 . When SCSI is reset . When loading of the tape completes . When initialization by the Log select command is specified . The C2 Error backup is initialized (cleared to 0) at LOG MENU clear: Clear log. 6-42 GY-2120WD/WS...
Page 267: Download Mode
Menu | 1: SCSI CPU 2: SYS CPU 3: SV CPU 4: IF CPU 99: Download Tape Coryright (c) 1995 1998, SONY Corp. | +============================================================================+ DOWNLOAD=> Function List Display in Download Mode using Help Command 6-43 GY-2120WD/WS...
Page 268 Downloads all the firmware of a IF CPU into memory via RS-232C port and writes it in flash memory. e) Downloads from the tape (Download command No. 99) Reads the firmware from the download tape written with the CPU firmware and writes in the flash memory. (Refer to Appendix A) 6-44 GY-2120WD/WS...
Page 269: Vendor Information Set Mode
+===[ CUSTOM SET MENU ]======================================================+ quit: Quit Tool help: display help Menu 1:Vendor Info Set 2:Vendor Info Display Copryright (c) 19 19 , SONY Corp. | +============================================================================+ CUSTOM=> Function List Display in Vendor Information Set Mode using Help Command 6-45 GY-2120WD/WS...
Page 270 Enter “2” as a command number and press the ENTER key. The vendor name, vendor ROM version, and machine name are displayed at that time. CUSTOM=>2 +=[ Setup menu ]=============================================================+ | Vendor Name : [xxxxxxxx] | Vendor ROM Version : [xxxx] | Machine Name : [xxxxxxxxxxxxxxxx] +============================================================================+ CUSTOM=> 6-46 GY-2120WD/WS...
Page 271: Service Set Mode
. The service set mode cannot be activated from another mode. Terminate another mode, then enter “SERV”. . Setting by the service set mode is effective after re-starting the GY-2120. So after setting, turn off and on the power of GY-2120. 6-47 GY-2120WD/WS...
Page 272 82: Set A-A Mode 73: Display COMP SW Mode 83: Set COMP SW Mode Copyright (c) 19 , SONY Corp. | +============================================================================+ SERV=> If a tape is loaded, the following menu is not appeared on the display to prevent the values from changing by mistake.
Page 273 SCSI standard regardless of the BT bit values. When this mode is set to OFF and BT bit of LOCATE/READ POSITION command is “1”, GY-2120 responds CHECK CONDITION. SERV => 14 BT bit Ignore Mode : [0] Check [OFF] SERV => 6-49 GY-2120WD/WS...
Page 274 When the CDB byte 1 bit 4 is “1”, the tape physical position (ID) is returned to the initiator. (Standard specifications:CC:Illegal Request when the CDB byte 1 bit 4 is “1”.) When this mode is OFF, the standard specifications are set. SERV => 71 PetaServe Mode : [0] OFF SERV => 6-50 GY-2120WD/WS...
Page 275 When the mode is ON, priority will be given to the setting of the COMP switch on the front panel for the setting of the compression/non-compression mode during recording. (For details, refer to “2-5. Data Compression” of the protocol manual.) SERV => 73 COMP SW Mode : [0] OFF SERV => 6-51 GY-2120WD/WS...
Page 276 | BT bit ignore Mode | [0] Check [OFF] | REW bit Mode | [0] OFF | PetaServe Mode | [0] OFF | A-A Mode | [0] OFF | COMP SW Mode | [0] OFF +-----------------------+--------------------------------------+ SERV => 6-52 GY-2120WD/WS...
Page 277 Enter “23” as a command and press the ENTER key. Enter 0 or 1 to set the mode of Ignore Wide Residue Message and press the ENTER key. SERV => 23 Ignore Wide Residue Message Mode (default Report-ON) = Report-OFF [0:OFF/other(digit):ON] => 1 SERV => 6-53 GY-2120WD/WS...
Page 278 Enter “81” as a command and press the ENTER key. Enter 0 or 1 to set the mode of ModePetaServe Mode, and press the ENTER key. SERV => 81 PetaServe Mode (default OFF) = OFF [0:OFF/other(digit):ON] => 1 SERV => 6-54 GY-2120WD/WS...
Page 279 Enter 0 or 1 to set the mode of COMP SW Mode, and press the ENTER key. SERV => 83 COMP SW Mode (default OFF) = OFF [0:OFF/other(digit):ON] => 1 Now, Flash Memory Programming. Wait a second!..Finished. SERV => 6-55 GY-2120WD/WS...
Page 280 Report Early Warning (default OFF) = REW [OFF] [0:OFF/other(digit):ON] => 1 PetaServo Mode (default OFF) = OFF [0:OFF/other(digit):ON] => 1 A-A Mode (default OFF) = OFF [0:OFF/other(digit):ON] => 1 COMP SW Mode (default OFF) = OFF [0:OFF/other(digit):ON] => 1 SERV => 6-56 GY-2120WD/WS...
Page 281: Drive Maintenance (Mdrv) Mode
97. Status Log Display 88. Time Code Log Upload 98. Time Code Log Display Copyright (c) 19 19 , SONY Corp. | +----------------------------------------------------------------------------+ MDRV => a) Remote Control (factory use only) (Drive maintenance mode command No. 1) Used for manufacturing. Unused.
Page 282 Function for uploading all SYS log to the PC. h) Time Code Log Upload (Drive maintenance mode command number 88) Enter “88” after MDRV, and press the ENTER key. Function for uploading all logs indicating details of recording/playback by the SYS to the PC. 6-58 GY-2120WD/WS...
Page 283 (3) Description of key entry P : Displays the previous log. T : Displays the top log. B : Displays the last log. Q : Quits the log command. Entering the keys other than described above displays the screen below. 6-59 GY-2120WD/WS...
Page 284 (2) Description of key entry P : Displays the previous log. T : Displays the top log. B : Displays the last log. Q : Quits the log command. Entering the keys other than described above displays the screen below. 6-60 GY-2120WD/WS...
Page 285 (2) Description of key entry P : Displays the previous log. T : Displays the top log. B : Displays the last log. Q : Quits the log command. Entering the keys other than described above displays the screen below. 6-61 GY-2120WD/WS...
Page 286 Log No. No = xxx0 to xxx3 ID status logging Log No. No = xxx4 to xxx7 n+1 ID status logging Log No. No = xxx8 to xxxB n+2 ID status logging Log No. No = xxxC to xxxF n+3 ID status logging 6-62 GY-2120WD/WS...
Page 287 = 0000B1C0 : No = 0BF0 : 04019149 00FF0000 28 00283204 00000000 8 !/ : the_frame (BCD) : the_id (Hex ID) : PB_ENV_LEVEL : dram_cont_err_buf : id_len_count (Hex ID) : RD06 7 to !/ : READ_TIME (BCD Time Code) : READ_UB 6-63 GY-2120WD/WS...
Page 288 Read (01, 03) CMD /Write (02) CMD @/ : EQDA17 (Dch.) /EQDA03 (Dch.) @- : EQDA11 (Cch.) /EQDA02 (Cch.) @= : EQDA16 (Bch.) /EQDA01 (Bch.) @[ : EQDA10 (Ach.) /EQDA00 (Ach.) @] : C_SAT_FLAG @\ : DRAM_CONT_ADDL_DP @; : DRAM_CONT_ADDM_DP @' : DRAM_CONT_CONT_DP 6-64 GY-2120WD/WS...
Page 289 %] : H_DPR_REG1_9 (FM parity err) %\ : H_DPR_REG1_8 (C1 burst error (Dch)) %; : H_DPR_REG1_F (read exor data) %' : H_DPR_REG1_E (Processor test mode) %, : H_DPR_REG1_D (IC test report (c2 enc/dec)) %. : H_DPR_REG1_C (IC test control (diag mode)) 6-65 GY-2120WD/WS...
Page 290 4th line (Log No. No.=xxx3, xxx7, xxxB, xxxF lines) Logger mem pointer : Log No. : Sys ID R/W Len R6 TCR TCR UB log_rp = 0000B270 : No = 0BFB : 00000000 00000000 00 00000000 00000000 All 0 6-66 GY-2120WD/WS...
Page 291 H_DPR_REG0_4 (test mode control) 6-75 H_DPR_REG0_B (C1 random error (Cch)) 6-75 H_DPR_REG0_A (C1 random error (Bch)) 6-75 H_DPR_REG0_9 (C1 random error (Ach)) 6-75 H_DPR_REG0_8 (C1 correction control) 6-76 H_DPR_REG0_F (option mode DATA resistor) 6-76 H_DPR_REG0_E (option mode ADDRESS resistor) 6-76 6-67 GY-2120WD/WS...
Page 292 V_LTCR (BCD Time Code) 6-77 l_search_count (Hex Frame) 6-77 RD06 7 to10 READ_TIME (BCD Time Code) READ_UB 12 to 15 C_CTL_COUNT (BCD Time Code) 6-77 normal_ltc_count (Hex Frame) 6-78 17 to 20 6-78 normal_ctl_count (Hex Frame) 6-78 total_search_count (Hex Frame) 6-78 6-68 GY-2120WD/WS...
Page 293 : rfrmg_err1 (F-2) 0 : always (not used) b2 : rprty_err1 (P-5) 1 : error exist 0: no error b1 : rfrmg_err0 (F-1) 0 : always (not used) b0 : rprty_err0 (P-4) 1 : error exist 0: no error Normal 00 6-69 GY-2120WD/WS...
Page 294 : Overflow * DER : Data Error EXT-in is not used Write/Read Longitudinal search forward reverse Normal values Note) Errors may occur near the Append Write positions in write and read. Errors for longitudinal search occur during acceleration, etc. 6-70 GY-2120WD/WS...
Page 295 : IN-point is not set when “with IN” or Preroll command Normal value 00 !] : C_EQ_OUTPORT SYS->SV (Free Timing) ; (b7) H : REC LOCK ; (b6) L : REC MODE ; (b5) L : EQ-LP2 ; (b4) L : EQ-LP1 Write Read Normal value 6-71 GY-2120WD/WS...
Page 296 Time Code Log. If cannot be corrected by C2 Error correction, as data cannot be recovered, this is called unre- coverd error. 3ID area from IN point Others Normal value 06, 07 6-72 GY-2120WD/WS...
Page 297 Normal value bit4 : DPR_WR_RD (not used) 0 : WR 1 : RD Normal value Unstable bit5 : EQ_EE 0 : OFF 1 : ON Normal value bit6 : MODE (PRECODE) 0 : OFF 1 : ON Normal value 6-73 GY-2120WD/WS...
Page 298 0 : SAT OFF Normal value Normal value @\ : DRAM_CONT_ADDL_DP (Hex,address) @; : DRAM_CONT_ADDM_DP (Hex,address) Start address of buffer memory (bank) of data to be written and read 400 (Hex) +24000000 (Hex) Actual address = oonn (Hex) 6-74 GY-2120WD/WS...
Page 299 The number of blocks which could be corrected are calculated from the C1 burst error. 00 (Hex) is 0 byte when it could be fully corrected or could not be fully corrected. Normal value 6-75 GY-2120WD/WS...
Page 300 %= : H_DPR_REG1_B (Mechanism adjustment signal generation control) %[ : H_DPR_REG1_A (Mechanism adjustment REC ENABLE control) %] : H_DPR_REG1_9 (FM parity err) b1 : parity error 1 : parity error exist 0 : no error Normal value Normal value FC or FD 6-76 GY-2120WD/WS...
Page 301 != to !\ : C_CTL_COUNT (BCD, Time Code) Relative Time Code value at which the counted by Reel FG (Reference when the CTL signal is not recorded) aa : hours bb : minutes cc : seconds dd : Frames 6-77 GY-2120WD/WS...
Page 302 When 1_search_count becomes 51 (=33 Hex) frame, if counted more than 41 (=29 Hex) frames, it is determined that the CTL of this block was recorded normally. Normal value Above (1_search_count-10) @= : total_search_count (Hex, Frame) Total number of frames when counting with IDC (C_CTL_COUNT) while executing longitudi- nal search CMD 6-78 GY-2120WD/WS...
Page 303 Checks the function of a capstan motor. SV16 Drum Motor Check Checks the function of a drum motor. SV17 Reel Shift Motor Check Checks the function of a reel shift motor. SV18 Pinch Roller Solenoid Check Checks the function of a pinch roller solenoid. 6-79 GY-2120WD/WS...
Page 304 Servo NV-RAM Check Checks the NV-RAM for servo system. *1: This command requires alignment tape YR5-1. *2: This command requires a recording tape. *3: This command requires alignment tape YR2-1. *4: This command requires alignment tape YR2-1 and an oscilloscope. 6-80 GY-2120WD/WS...
Page 305 : System Error Code Check : Clear Screen HELP : this Help QUIT : Quit this Maintenance ------>_ * “xx” in “RFxx” or “SVxx” indicates the number of adjustment and check commands in an RF or servo system. 6-81 GY-2120WD/WS...
Page 306 *1: Time for which this unit is energized. *2: Time for which the drum rotates in the thread end state (in which the tape touches the drum). *3: The cycle of one thread state is unthread end state, thread end state, then unthread end state. 6-82 GY-2120WD/WS...
Page 307 Select Reset Meter (1-5)? 2 Select Reset Meter (1-5)? 1 [Tape Run Hours (res)] [Drum Run Hours (res)] Are you Ready (y/n)? Yes Are you Ready (y/n)? Yes Reset [Tape Run Hours (res)] Reset [Drum Run Hours (res)] ------> ------> 6-83 GY-2120WD/WS...
Page 308 [Tape Run Hours (res)] = 2 [Thread Counter (res)] = 3 [Cleaning Tape (res)] = 4 [Invalid Clean (res)] = 5 Select Reset Meter (1-5)? 4 [Cleaning Tape (res)] Are you Ready (y/n)? Yes Reset [Cleaning Tape (res)] ------> 6-84 GY-2120WD/WS...
Page 309 . When the hours meter value could not be read from the MS-54 board ------>savehours Save Hours Meter from MS-54 board to MA-83 board Are you Ready (y/n) ? Yes Hours Meter can’t read from MS-54 board! ------> 6-85 GY-2120WD/WS...
Page 310 Preset Hours Meter to MS-54 board Are you Ready (y/n) ? Yes ------> . When a PRESETHOURS command was executed without executing a SAVEHOURS command ------>presethours Preset Hours Meter to MS-54 board Are you Ready (y/n) ? Yes Hours Meter not Saved ------> 6-86 GY-2120WD/WS...
Page 311 RF01: RF All Adjust RF07: RF NV-RAM Save RF02: PB Level Adjust RF08: RF NV-RAM Load RF03: PB PLL Adjust RF09: RF Initial Data Set RF04: PB Equalizer Adjust RF05: Rec Current Adjust RF06: RF Adjust Data Display ------>_ 6-87 GY-2120WD/WS...
Page 312 Set YR5-1 (Alignment Tape) Are you ready (y/n/else=Eject)? Yes Are you ready (y/n/else=Eject)? Yes PB PLL Adjust..OK PB PLL Adjust..OK PB Level Adjust..OK PB Level Adjust..NG PB Equalizer Adjust..OK PB Level Adjust..OK # Adjust Incomplete # ALL Adjust Complete ------>_ ------>_ 6-88 GY-2120WD/WS...
Page 313 # Adjust Incomplete # Ach PB Level 75 Ach PB Level 80 Bch PB Level 7E Bch PB Level 70 Cch PB Level 75 Cch PB Level 80 Dch PB Level 81 Dch PB Level 60 ------>_ ------>_ 6-89 GY-2120WD/WS...
Page 314 Ach Gain 76 Phase 79 Ach Gain 46 Phase 4A Bch Gain 84 Phase 75 Bch Gain 33 Phase 56 Cch Gain 6E Phase 6A Cch Gain 46 Phase 4A Dch Gain 72 Phase 7F Dch Gain 33 Phase 56 ------>_ ------>_ 6-90 GY-2120WD/WS...
Page 315 # Adjust Incomplete # Ach REC Current 80 Ach REC Current F0 Bch REC Current 80 Bch REC Current F0 Cch REC Current 80 Cch REC Current F0 Dch REC Current 80 Dch REC Current F0 ------>_ ------>_ 6-91 GY-2120WD/WS...
Page 316 B/Dch PB PLL 6A Ach Gain 66 Phase 69 Bch Gain 74 Pahse 78 Cch Gain 4F Phase 77 Dch Gain 68 Pahse 7B Ach REC Current 80 Bch REC Current 80 Cch REC Current 80 Dch REC Current 80 ------>_ 6-92 GY-2120WD/WS...
Page 317 Are you ready (y/n)? Yes Are you ready (y/n)? Yes Saving..OK Loading..OK Data Saved Data Loaded ------>_ ------>_ . For RF09 ------>rf09 RF Adjust [Auto Adjust] RF Initial Data Set Are you ready (y/n)? Yes Setting..OK Data Set ------>_ 6-93 GY-2120WD/WS...
Page 318 SV0D: Cassette Switch Check SV1D: SAT Function Check SV0E: Cassette Comp. Switch Check SV1E: Manual PG Adjustment SV0F: Tape Top/End Sensor Check SV1F: SV NV-RAM Check SV10: Dew Sensor Check SV20: CTL/Traking Auto Check ------>_ SV21: Pairing Auto Check 6-94 GY-2120WD/WS...
Page 319 T Reel FG Duty Adjust..NG Capstan FG Duty Adjust..OK S Reel offset/friction Adjust..OK # Adjust Incomplete # T Reel offset/friction Adjust..OK S Reel Torque Adjust..OK ------>_ T Reel Torque Adjust..OK S/T Tension offset Adjust..OK ALL Adjust Complete ------>_ 6-95 GY-2120WD/WS...
Page 320 . When the adjustment succeeds . When the adjustment fails ------>sv02 ------>sv02 Servo Adjust [Auto Adjust] Servo Adjust [Auto Adjust] S Reel FG Duty Adjust S Reel FG Duty Adjust Adjust Complete # Adjust Incomplete # ------>_ ------>_ 6-96 GY-2120WD/WS...
Page 321 Servo Adjust [Auto Adjust] RF Switching Position Adjust RF Switching Position Adjust Set YR2-1 (Alignment Tape) Set YR2-1 (Alignment Tape) Are you ready (y/n/else=Eject)? Yes Are you ready (y/n/else=Eject)? Yes Adjust Complete # Adjust Incomplete # ------>_ ------>_ 6-97 GY-2120WD/WS...
Page 322 . T tension detector circuit (IC32 on the DR-327 board) For SV0A (Free Speed Adjust) . Confirm that the playback tape is alignment tape YR2-1. Check the following circuits. . Capstan FG amplifier (DR-327 board) . Capstan motor driver (DR-327 board) . CTL amplifier (DR-327 board) 6-98 GY-2120WD/WS...
Page 323 (2) Press the Y key to initiate data transmission. (3) After transmission is completed, message “Data Saved” is displayed on the screen. Example: ------>sv0c Servo Adjust [NV-RAM Control] SV NV-RAM Save Are you ready (y/n)? Yes Saving NV-RAM1..OK Saving NV-RAM2..OK Data Saved ------>_ 6-99 GY-2120WD/WS...
Page 324 7 When only the S cassette REC inhibit switch is pressed SW 87654321 00000100 SW 87654321 01000000 4 When only the cassette ID-4 sensor is pressed 8 When only the L cassette REC inhibit switch SW 87654321 is pressed 00001000 SW 87654321 10000000 6-100 GY-2120WD/WS...
Page 325 8L cassette REC inhibit switch 7S cassette REC inhibit switch Sensor Sensor Cassette tab sensors (1 through 6) 1Cassette ID-1 sensor 2Cassette ID-2 sensor 3Cassette ID-3 sensor 4Cassette ID-4 sensor 5Cassette ID-5 sensor 6Cassette ID-6 sensor Sensor (Switch) Position 6-101 GY-2120WD/WS...
Page 326 SW1: When only cassette-in switch 1 is pressed SW3 SW1 [0] [1] SW2: When only cassette-in switch 2 is pressed SW3 SW1 [0] [0] SW3: When only the L cassette detection switch is pressed SW3 SW1 [1] [0] 6-102 GY-2120WD/WS...
Page 327 L cassette detection switch Cassette-in switch 1 Cassette-in switch 2 [Cassette size sensor] [Cassette-in sensor (L)] [Cassette-in sensor (R)] Switch Position of Compartment Block Rear Front Cassette-in sensor (L) Cassette size sensor Cassette-in sensor (R) Top View of Cassette Compartment 6-103 GY-2120WD/WS...
Page 328 Manual Check Start SENSOR SENSOR Exiting... ------>_ END SENSOR : When the screwdriver is brought near only a tape end sensor SENSOR SENSOR TOP SENSOR : When the screwdriver is brought near only a tape top sensor SENSOR SENSOR 6-104 GY-2120WD/WS...
Page 329 In case of NG: . Check the sensor itself. . Check the sensor oscillator/detector (DR-327 board or MS-54 board). . Check the sensor input port of a CPU (MA-83 board). Tape top sensor Tape end sensor < Upper-side view > 6-105 GY-2120WD/WS...
Page 330 Servo Check [Input Check] Dew Sensor Check [KEY] CTRL-C=EXIT Manual Check Start DEW SENSOR : DRY Exiting... ------>_ . When the dew sensor is dry DEW SENSOR : DRY . When the dew sensor is wet DEW SENSOR : WET! 6-106 GY-2120WD/WS...
Page 331 In case of NG: . Check the sensor itself (DS241 on the SE-358 board). . Check the sensor circuit (IC241 on the SE-358 board). . Check the sensor input port of a CPU (MS-54 board). Dew sensor < Upper-side view > 6-107 GY-2120WD/WS...
Page 332 [KEY] CTRL-C=EXIT [KEY] CTRL-C=EXIT J=FWD J=FWD K=REV K=REV SPACE=STOP SPACE=STOP S Reel (top view) T Reel (top view) Forward: clock-wise Forward: clock-wise Reverse: c.clock-wise Reverse: c.clock-wise Manual Check Start Manual Check Start STOP STOP Exiting... Exiting... ------>_ ------>_ 6-108 GY-2120WD/WS...
Page 333 . Check the FG output from a T reel table rotation sensor. . Check the T reel FG amplifier circuit (DR-327 board or MS-54 board). T reel table rotation sensor S reel table rotation sensor S reel table T reel table < Upper-side view> 6-109 GY-2120WD/WS...
Page 334 Threading Motor Check . In thread end state [KEY] CTRL-C=EXIT H=Thread(FAST) *** THREAD END *** J=Thread(SLOW) K=Unthread(SLOW) . In states other than thread end and unthread end L=Unthread(FAST) SPACE=STOP •••••••••••• Manual Check Start *** UNTHREAD END *** Exiting... ------>_ 6-110 GY-2120WD/WS...
Page 335 When the threading ring is in the thread end/unthread end state but message “....” is displayed: . Check the thread end sensor or unthread end sensor (TR-79 board). . Check the sensor input port of a CPU (MA-83 board). Threading ring Unthreading end sensor Theading motor Threading end sensor < Upper-side view > 6-111 GY-2120WD/WS...
Page 336 Message “[DRIVE TIME OUT]” is then displayed on the screen. Example: ------>sv14 Servo Check [Motor check] Warning: Take out Tape from Cassette Compartment. Cassette Compartment Motor Check [KEY] CTRL-C=EXIT J=Cassette Comp. UP K=Cassette Comp. DOWN SPACE=STOP Manual Check Start Exit only UP Position Exiting... 6-112 ------>_ GY-2120WD/WS...
Page 337 Turn the yellow pulley shown in the figure on the right. The compartment block then moves upward and down- ward. To move the compartment block upward, turn the pulley clockwise. Cassette compartment Yellow pulley Cassette compartment holder Down Upward Movement of Compartment Block 6-113 GY-2120WD/WS...
Page 338 Reverse...OK Forward...OK Reverse...OK Forward...OK Exiting... ------>_ In case of NG: . Check the capstan motor drive circuit (DR-327 board or MS-54 board). . Confirm the capstan FG output. . Check the capstan motor FG amplifier circuit (DR-327 board). 6-114 GY-2120WD/WS...
Page 339 . Check the drum motor drive circuit (DR-327 board or MS-54 board). . Check the drum motor. . Confirm the drum FG output and drum PG output. . Check the drum FG amplifier circuit (DR-327 board). . Check the drum PG amplifier circuit (DR-327 board). 6-115 GY-2120WD/WS...
Page 340 . For S position ------>sv17 Servo Check [Motor check] S-Position Reel Shift Motor Check [KEY] CTRL-C=EXIT . For L position J=L.Cassette Position K=S.Cassette Position L-Position SPACE=STOP . For except S and L position Manual Check Start S-Position ..Exiting... ------>_ 6-116 GY-2120WD/WS...
Page 341 . Check the S position sensor and L position sensor (PTC-71 board). . Check the sensor input port of a CPU (MS-54 board). S reel table T reel table Reel shift motior (S position state) L position sensor S position sensor < Upper-side view > 6-117 GY-2120WD/WS...
Page 342 K=Solenoid-OFF Manual Check Start Pinch Roller Solenoid-OFF Exiting... ------>_ . Before threading is completed ------>sv18 Servo Check [Plunger solenoid check] Pinch Roller Solenoid Check [KEY] CTRL-C=EXIT J=Solenoid-ON K=Solenoid-OFF Manual Check Start Pinch Roller Solenoid-OFF (Push the Pinch Lever) 6-118 GY-2120WD/WS...
Page 343 6-2. Description of Commands In case of NG: . Check the pinch solenoid drive circuit (DR-327 board). . Check the pinch roller solenoid itself. Pinch roller solenoid Pinch lever Pinch roller (Thread end state) < Upper-side view > 6-119 GY-2120WD/WS...
Page 344 Servo Check [Plunger solenoid check] S Reel Brake Solenoid Check T Reel Brake Solenoid Check [KEY] CTRL-C=EXIT [KEY] CTRL-C=EXIT J=Solenoid-ON J=Solenoid-ON K=Solenoid-OFF K=Solenoid-OFF Manual Check Start Manual Check Start S Reel Brake Solenoid-OFF T Reel Brake Solenoid-OFF Exiting... Exiting... ------>_ ------>_ 6-120 GY-2120WD/WS...
Page 345 . Check the S reel brake solenoid itself. For SV1A (T Reel Brake Solenoid Check) . Check the T reel brake solenoid drive circuit (DR-327 board). . Check the T reel brake solenoid itself. S reel brake solenoid Cores T reel brake solenoid <Upper-side view> 6-121 GY-2120WD/WS...
Page 346 (3) To terminate a check, press the CTRL and C keys simultaneously. Examples: ------>sv1b Servo Check [Plunger solenoid check] Cleaning Roller Solenoid Check [KEY] CTRL-C=EXIT J=Solenoid-ON,then OFF Manual Check Start Cleaning Roller Solenoid-OFF Exiting... ------>_ 6-122 GY-2120WD/WS...
Page 347 In case of NG: . Confirm that there is no mechanical abnormality. . Check the cleaning roller solenoid drive circuit (DR-327 board). . Check the cleaning roller solenoid itself. Cleaning roller solenoid Cleaning roller < Upper-side view > 6-123 GY-2120WD/WS...
Page 348 Capstan FG/Motor Check..OK S Reel offset/friction Check..OK S Reel offset/friction Check..OK T Reel offset/friction Check..OK T Reel offset/friction Check..OK S Reel Torque Check..OK S Reel Torque Check..NG T Reel Torque Check..OK # Abnormal Ended # ALL Check Complete ------>_ ------>_ 6-124 GY-2120WD/WS...
Page 349 T Reel Torque Check Function: Checks the torque of a T reel motor. In case of NG: Check the T reel motor (SV12). Readjust the T reel torque (SV08) if no abnormality is found in the motor and drive circuit. 6-125 GY-2120WD/WS...
Page 350 Confirm that the playback tape is alignment tape YR5-1. Readjust the servo adjustment commands (SV01, SV0A, and SV0B). Check the following circuits. . REC head PB circuit (EQ-66 board) . Automatic tracking control circuit (Servo system on the MA-83 board) 6-126 GY-2120WD/WS...
Page 351 (7) To save adjustment data in the NV-RAM (Non-volatile RAM), execute command [KEY] CTRL-C=EXIT SV0C (Servo NV-RAM Save). H=UP(FAST) J=UP(SLOW) * After other servo adjustment, servo adjustment K=DOWN(SLOW) data can be collectively saved in the NV-RAM. L=DOWN(FAST) PG DATA:2249 Exiting... ------>_ 6-127 GY-2120WD/WS...
Page 352 (2) Press the Y key to initiate data transmission. (3) After transmission is completed, messages below are displayed on the screen. “Data Set” Examples: . For SV1F ------>sv1f SV Adjust [NV-RAM Control] SV Initial Data Set Are you ready (y/n)? Yes Setting..OK Data Set ------> 6-128 GY-2120WD/WS...
Page 353 X_CMPN_DATA Tracking control correction value by SAT X_CMPN_HOLD X_CMPN_DATA hold value TRCON_DATA Tracking control value RC_PH REC CTL edge timing set to REC CTL generator RC_PH_OFFSET Offset value requested from playback CTL error for regenerating the REC CTL 6-129 GY-2120WD/WS...
Page 354 Constant 9876h. Indicates not used. Dummy data Constant 9876h. Indicates not used. Dummy data Constant 9876h. Indicates not used. Dummy data Constant 9876h. Indicates not used. Dummy data Constant 9876h. Indicates not used. Dummy data Constant 1234h. Used in place of marker. 6-130 GY-2120WD/WS...
Page 355 SV microprocessor<-DR microprocessor communication status 3 SCI_IN0+4 SV microprocessor<-DR microprocessor communication status 4 SCI_OUT0+1 SV microprocessor->DR microprocessor communication status 1 SCI_OUT0+2 SV microprocessor->DR microprocessor communication status 2 SCI_OUT0+3 SV microprocessor->DR microprocessor communication status 3 SCI_OUT0+4 SV microprocessor->DR microprocessor communication status 4 6-131 GY-2120WD/WS...
Page 356: Error Processing
In this section, explains the error messages, error codes, and their remedies. 6-3-1. Troubleshooting Perform the operation below when a failure occurs in the GY-2120. If you have any questions, consult a Sony service facility. a) A failure occurs. b) Record the state where a failure occurs.
Page 357 SCSI SCSI TERM POWER SET UP Total revision of firmware and hardware * Model nameplate information Serial No. of main unit, and model type I/O switch * Fan state SET UP switch Check that the fan operates properly. 6-133 GY-2120WD/WS...
Page 358 0001, 0002, 0003, 0004, 0005, 0006, 0007, 0008, 0009, 000C, 000D, 0013, 1x1B, 1x1C, 1x1F, 1x23, 1x24, 1x25, 1x26, 1x3B, 1x3C, 1x3D, 1x41, 1x42, 1x43, 1x44, 1x47, 1x5B, 1x7A, 1x7B, 1x7C, 1x7E, 1x7F, 1XCY, 1xDA, 1xDD 6-134 GY-2120WD/WS...
Page 359: Analyzing Logs
[SCSI Command Sequence]. Read the Sequence of [SCSI Command Sequence]. Read the Sequence of [Other History] Find other logs * For details on analyzing other logs, refer to the example on analyzing the SCSI LOG and SYS/SV LOG. 6-135 GY-2120WD/WS...
Page 360 As CMD is 01, x is substituted by 1, and the LCD becomes 1124. As it corresponds with the actual message on the LCD, this error is the cause. As CMD 01 is Read and err [00000124] is Unlock Inpoint (Servo Unlock Error near IN point), Servo Unlock occurred near ID [121905] on the tape. 6-136 GY-2120WD/WS...
Page 361 = 00001C68 : No = 01F5 : FF FF 99 96 00 00 00 00 log_rp = 00001C70 : No = 01F6 : 5B 51 78 78 67 74 4F 47 log_rp = 00001C78 : No = 01F7 : 70 7C 68 60 00 00 00 00 6-137 GY-2120WD/WS...
Page 362 1. Excess CTL pulses were output, and stepped the value after the Pre IN point. 2. The CTL pulse became faulty and stepping could not be performed. When CTL recovered and was aligned to LTC, it was corrected to the value just after the Pre IN point. 3. LTC incontinuous recording. 6-138 GY-2120WD/WS...
Page 363 As CMD is 03, x is substituted by 3, and the LCD becomes 1324. As it corresponds with the actual message on the LCD, this error is the cause. As CMD 03 is single Read and err [00000124] is Unlock Inpoint (Servo Unlock Error near IN point), Servo Unlock occurred near ID [16617] on the tape. 6-139 GY-2120WD/WS...
Page 364 = 000016A8 : No = 01F5 : FF FF 95 99 00 00 00 00 log_rp = 000016B0 : No = 01F6 : 55 59 7C 80 6B 74 50 59 log_rp = 000016B8 : No = 01F7 : 78 7C 55 5C 00 00 00 00 6-140 GY-2120WD/WS...
Page 365 As only the last 767ID remains for the Syscon Time Code Log, check with the 2-Port Log if the following CMDs were executed after ERROR!! occurred. Continuous Read (01) CMD Continuous Write (02) CMD Single Read (03) CMD Long search (19) CMD 6-141 GY-2120WD/WS...
Page 366 C1 is the number of normally corrected blocks (total 208) A : Ach. 0xD0 = 208 B : Bch. 0xD0 = 208 C : Cch. 0xD0 = 208 D : Cch. 0xD0 = 208 C1 means that all channels are normal. 6-142 GY-2120WD/WS...
Page 367 ; 0:00 to less than 40% Envelope Level also means that all channels are normal. No problems are found with all IDs remaining in the Time Code Log. It is necessary to analyze near ID [16617] with the tape. 6-143 GY-2120WD/WS...
Page 368 Check the contents with the maintenance manual. Error messages [E] Unload > xxxx Failed in unloading. Error code 1x3D An area not recorded with CTL was found. Action (Cause of error) Clean the tape running system Or replace the EQ-66 board. 6-144 GY-2120WD/WS...
Page 369 [Procedure for Acquiring LOG] For GY2120 [FW Rev] revision GY1.00 and below, acquire LOG as follows. For other items, the method may be slightly different. 1) Connecting the D-sub 25pin connector Connect the connector labeled RS232C on the rear panel. 6-145 GY-2120WD/WS...
Page 370 Command[9] fLoad[1] fActMode[0] Rsv[0] 62 00015786 Maintenance Monitor Used 0009D Command[2] fLoad[312E3030] fActMode[41300104] Rsv[0] 63 0001867D Maintenance Monitor Used 0009D Command[9] fLoad[1] fActMode[0] Rsv[0] 64 00018AEE Maintenance Monitor Used 0009D Command[2] fLoad[312E3030] fActMode[41300104] Rsv[0] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>[ Serial LOG ]<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 6-146 GY-2120WD/WS...
Page 371 LOG => quit ←←← Exit LOG MODE ←←← MDRV ←←← MDRV => 2 ------- Service Terminal for Maintenance Copyright (c) 1996 Sony Corporation ------->hours ←←← Hours Meter Operation Hours= 1440 Drum Run-1 Hours(res)= 502 Drum Run Hours = Drum Run-2 Hours(res)= 12...
Page 372 There are no conspicuous scratches and scratches, but bending damage in the longitudinal direction at the 0.1 mm position of the upper edge (CTL side). Tape guide There are scratches at the upper half of the T side due to sliding with the upper edge of the tape. 6-148 GY-2120WD/WS...
Page 373 4-4-1) Check the playback output of the longitudinal signal using the reference tape. Use remo.exe to run the tape. Check the test pin of the EQ-66 board using an oscilloscope. CTL ANA Normal CTL PLS Normal LTC ANA Normal RSYC Normal 6-149 GY-2120WD/WS...
Page 374 117 0011BAB8 [RCV 1] 02 ID [ 78750] len [ 500] eod [ 0] rty[ 0] 00053 parm[00000000:00000000:00000000] The No. 117 CMD 02 ends normally by writing len [500] from ID [78750]. Stop position is 78750 + 500 = ID79250 6-150 GY-2120WD/WS...
Page 375 Analysis of execution state of longitudinal search CMD by Syscom Time Code Log If the Log. No. xxx3, xxx7, xxxB, and xxxF line is as follows, then all 0s are the longitudinal search CMD LOG; log_rp=00008E70:No.=0A0B:00000000 00000000 00 00000000 00000000 6-151 GY-2120WD/WS...
Page 376 ↑ ↑ ↑ C_CTL_COUNT normal_ltc_count normal_ctl_count log_rp = 0000AD60 : No = 0BFA : 00000000 0000007E 00 00000000 00000000 ↑ total_search_count log_rp = 0000AD70 : No = 0BFB : 00000000 00000000 00 00000000 00000000 Search starts Search ends 6-152 GY-2120WD/WS...
Page 377 4Byte 0x00000001 0x00000018 1 [Frame] = 2 [ID] 24 [Frame] = 48 [ID] total_search_count 4Byte 0x00000001 0x0000007E 1 [Frame] = 2 [ID] 126 [Frame] = 252 [ID] Check is performed every 50 frames, to determine CTL, and LTC. 6-153 GY-2120WD/WS...
Page 378 = 00009AF0 : No = 0AD3 : 00000000 00000000 00 00000000 00000000 Before Reset After Reset l_search_count 0x00000033 00000001 51[Frame] 1[Frame] normal_ltc_count 00000030 00000001 48[Frame] 1[Frame] normal_ctl_count 00000027 00000001 39[Frame] 1[Frame] As normal CTL reading is below 40 frames, 13D error is set. Continue search. 6-154 GY-2120WD/WS...
Page 379 = 0000A7B0 : No = 0B9F : 00000000 00000000 00 00000000 00000000 Before Reset After Reset l_search_count 0x00000033 00000001 51[Frame] 1[Frame] normal_ltc_count 00000033 00000001 51[Frame] 1[Frame] normal_ctl_count 00000033 00000001 51[Frame] 1[Frame] Normal reading above 40 frames is present in this case. 6-155 GY-2120WD/WS...
Page 380 CTL PLS to generate. 6) Countermeasures As a real cleaning tape is not used for more than 63 hours at the least, perform cleaning using a cleaning tape and continue aging. 6-156 GY-2120WD/WS...
Page 381: Error Messages
Write operation exceeds the size of current logical volume. [E] Write >???? Error occured during write operation. ???? indicates error code a) Handle error with “FORMAT ”. (DTF) b) Handle error with “RECOVER ” (DTF) c) Indicates error which occurred during flashing. 6-157 GY-2120WD/WS...
Page 382: Error Codes
Parity error occurred at the DPR while the data sent fthe memory from the DPR. 1x44 Parity error occurred at the memory while the data sent fthe memory from the DPR. 1x45 1bit error occurred in the memory and it was corrected.. Continued to next page 6-158 GY-2120WD/WS...
Page 383 Any number can be assigned to “x” When this error code is indicated on the LCD. For details of the meaning of “x” at the second place from the left of the error code, refer to “Commands to SYS Side CPU” on page 6-27. 6-159 GY-2120WD/WS...
Page 384: System Error Code
. Take-up reel table height adjustment defect Protection operation: Enters the protection mode. Be sure to take out the cassette manually (refer to Section 1-5). Do not turn the power on again without taking out the cassette. This may damage the tape. 6-160 GY-2120WD/WS...
Page 385 Enters the protection mode. The normal state may be returned after the protection mode is entered at the end of the tape. Be sure to take out the cassette manually (refer to Section 1-5). Do not turn on the power again without taking out the cassette. This may damage the tape. 6-161 GY-2120WD/WS...
Page 386 . Tape abnormality (The winding state has a problem.) Protection operation: Enters the protection mode. Be sure to take out the cassette manually (refer to Section 1-5). Do not turn on the power again without taking out the cassette. This may damage the tape. 6-162 GY-2120WD/WS...
Page 387 . Supply or take-up reel brake solenoid drive circuit (MS-54 board) trouble . Harness disconnection . Reel table height adjustment defect . Tape path and drum troubles . Tape abnormality (The winding state has a problem.) Protection operation: Stops the tape transport and enters the rest state. 6-163 GY-2120WD/WS...
Page 388 . Servo adjustment defect on supply reel and supply tension sensor . Supply reel brake trouble . Supply reel brake solenoid drive circuit (MS-54 board) trouble . Harness disconnection Protection operation: Stops the tape transport and enters the rest state. 6-164 GY-2120WD/WS...
Page 389 . Drum motor drive circuit (DR-327 board) trouble . Drum FG/PG waveform shaper circuit (MA-83 board) trouble . Assembly defect during inner drum replacement Protection operation: Stops the tape transport and enters the rest state in the unthread end state. 6-165 GY-2120WD/WS...
Page 390 . Threading motor drive circuit (DR-327 board) trouble . Threading mechanism trouble Protection operation: Ejects the cassette during cassette insertion or ejection. Enters the protection mode during tape loading. Stops the tape transport and enters the rest state in cases except the above. 6-166 GY-2120WD/WS...
Page 391 Prohibits the cleaning roller operation. Stops the tape transport and enters the rest state in the unthread end state when the tape is loaded in states other than REC or PLAY. Prohibits the tape threading. Prohibits the cassette loading. 6-167 GY-2120WD/WS...
Page 392 During tape transport in forward direction, the FF mode can be entered only while the total tape quantity is observed. Stops the tape transport and enters the rest state during tape transport except the above. 6-168 GY-2120WD/WS...
Page 393 Subcode: None (Displays 00.) Possible cause: . Fan motor trouble . Fan motor rotation detection circuit (MA-83 board) trouble . Thermal sensor (TH601 on the EQ-66 board) trouble Protection operation: None 6-169 GY-2120WD/WS...
Page 394 . Reel position sensor (PTC-71 board) trouble (S position sensor or L position sensor) . Reel position inpur port (MS-54 board) trouble Protection operation: Stops the movement of the reel table and ejects the cassette during cassette loading. 6-170 GY-2120WD/WS...
Page 395 . Servo IC (IC814/MA-83 board) trouble . Microcomputer SYS CPU (MA-83 board) operation defect in servo system Protection operation: Enters the protection mode when abnormality is detected by SV CPU. Displays only this error when abnormality is detected by only SYS CPU. 6-171 GY-2120WD/WS...
Page 396 Protection operation: Enters the protection mode only when the checksum does not coincide, respectively. (When the other coincides even if one of them does not coincide, the system functions normally. In this case, the protection operation is not performed.) 6-172 GY-2120WD/WS...
Page 397 MEM-83, MA-83, DSP-78,EQ-66 or GY-2120 1x3B Cleaning EQ-66 1x3C Cleaning EQ-66 1x3D Cleaning EQ-66 1x41 MA-83 1x42 MA-83 1x43 MA-83 1x44 Loopback_Check MA-83 or EQ-66 1x47 MA-83 The parts marked must be replaced in the order given from left to right. 6-173 GY-2120WD/WS...
Page 398 MA-83 or GY-2120 2x93 LOG_Check->Cassette-Man-Eject MA-83, EQ-66 or GY-2120 2x94 LOG_Check->Cassette-Man-Eject MA-83 or GY-2120 2x97 LOG_Check->Cassette-Man-Eject MS-54 or GY-2120 Note) The EX-603 board is the relay board of the EQ-66 board, and should be replaced together with the EQ-66 board. 6-174 GY-2120WD/WS...
Page 399 LED does not light up even if power is supplied IF-682, microfuse, or GY-2120 List of Replacement Parts during Periodic Inspection Upper drum assembly Pinch arm assembly V cleaning roller assembly Brush SR4 assembly Filter assembly Stopper washer Poly-washer for adjustment (-01) Poly-washer for adjustment (-11) 6-175 GY-2120WD/WS...
Page 400: Troubleshooting
DIAG: 012 * xxxx 4. DIAG termination Abort the DIAG. → “*” blinks and an error code “9999” is displayed. Press the DIAG hole on the front panel continuously for about two seconds. DIAG: 012 9999 6-176 GY-2120WD/WS...
Page 401 (Refer to Section 6-2-1) ROM version display : IF CPU ROM version display : SV CPU ROM version display : EQ CPU ROM version display : DR CPU Firmware revision display (Same as “091” to “096”) Continued to next page 6-177 GY-2120WD/WS...
Page 402 Drum Hours meter (for cleaning) reset Tape run hours meter reset Threading counter reset *1 : This command requires alignment tape YR2-1. *2 : This command requires alignment tape YR5-1. *3 : This command requires alignment tape YR2-1, YR5-1 and recording tape. 6-178 GY-2120WD/WS...
Page 403 No. 300 is selected and when the RECOVER button is pressed for activation. In this case, insert the corresponding alignment tape. LCD display Corresponding tape “Insert YR2 Tape” Alignment tape YR2-1 “Insert YR5 Tape” Alignment tape YR5-1 “Insert Blnk Tape” Blank tape 6-179 GY-2120WD/WS...
Page 404 ROM version display : IF CPU IF ROM Vx.xx ROM version display : SV CPU SV ROM Vx.xx ROM version display : EQ CPU EQ ROM Vx.xx ROM version display : DR CPU DR ROM Vx.xx Firmware revision display Rev. GYx.xx 6-180 GY-2120WD/WS...
Page 405 Capstan FG Duty adj. failed 2050 S Reel Offset/Friction adj. failed 2060 T Reel Offset/Friction adj. failed 2070 S Reel Torque adj. failed 2080 T Reel Torque adj. failed 2090 S/T Tention Offset adj. failed 2120 SV Data save failed 6-181 GY-2120WD/WS...
Page 406 . If the LP-3 Check item is NG, replace the MA-83 board. . If any of the LP-2 and LP-1 Check items is NG, replace the EQ-66 board. 6. Self-Diagnosis Mode Termination Enter four characters “QUIT”. The self-diagnostic mode is then terminated. 6-182 GY-2120WD/WS...
Page 407 LED Check Was DSP-78 board Replace Enter replaced? DSP-78 board Memory Check ROM Check Replace MA-83 board Was MA-83 board PIO Check replaced? Enter Replace LP-3 MA-83 board LP-2 Replace EQ-66 board LP-1 Enter Q U I T 6-183 GY-2120WD/WS...
Page 408: Countermeasures For Diag Error Codes And List Of Maintenance Parts
T Reel Torque check error -Readjust, DR-327, MS-54 or GY-2120 9000 Drum Hours meter (replace) reset failed MS-54 9010 Drum Hours meter (cleaning) reset failed MS-54 9020 Tape run hours meter reset failed MS-54 9040 Threading counter reset failed MS-54 6-184 GY-2120WD/WS...
Page 409: Electrical Alignment Overview
GY-2120 Control Software remo. exe IBM PC/AT compatible computer Terminal Emulator Software DEC VT100 or equivalent Alignment Tape YR2-1 Sony part No. 8-960-074-11 YR5-1 Sony part No. 8-960-074-01 Recording Tape DTF Cassette Tape whose data was all erased Extension Board EX-602 Sony part No.
Page 410: Initialize Of Nv-Ram
Perform the whole servo adjustment (section 6-7-3) from the front panel using the DIAG hole on the front panel. 5. Hours meter preset Preset the hours meter in the same way as when a personal computer is used because it cannot be preset from the front panel. 6-186 GY-2120WD/WS...
Page 411: Electrical Adjustment Items After Board Replacement
GY-2120 SCSI Control Software scsitool.exe DSP-78 board Adjustment title Adjustments 6-2-1. DIAG ALL Check DIAG menu [1] 1-11. GY-2120 SCSI Control Software scsitool.exe IF-682/683 board Adjustment title Adjustments 6-2-1. DIAG ALL Check DIAG menu [1] 1-11. GY-2120 SCSI Control Software scsitool.exe 6-187 GY-2120WD/WS...
Page 412 SV0A : Free Speed Adjust 6-5-11. Drum Phase Automatic Adjustment SV0B : RF Switching Position Adjust 6-5-12. Saves SV Adjustments Data SV0C : SV NV-RAM Save 6-5-13. Automatic-Tracking Function Check SV1D : SAT Function Check 1-11. GY-2120 SCSI Control Software scsitool.exe 6-188 GY-2120WD/WS...
Page 413: Electrical Adjustment Items After Dc-Dc Converter Replacement
RF01 : PB All Adjust 6-6-5. REC Current Automatic Adjustment RF05 : REC Current Adjust 6-6-6. Saves RF Adjustments Data RF07 : RF NV-RAM Save 6-2-1. DIAG all Check DIAG menu [1] 1-11. GY-2120 SCSI Control Software scsitool.exe 6-189 GY-2120WD/WS...
Page 414: Electrical Adjustment Items After Mechanical Parts Replacement
GY-2120 SCSI Control Software scsitool.exe S reel table assembly Adjustment title Adjustments 6-5-2. S Reel FG Duty Automatic Adjustment SV02 : S Reel FG Duty Adjust 6-5-12. Saves SV Adjustments Data SV0C : SV NV-RAM Save 1-11. GY-2120 SCSI Control Software scsitool.exe 6-190 GY-2120WD/WS...
Page 415 6-4. Electrical Alignment Overview T reel table assembly Adjustment title Adjustments 6-5-3. T Reel FG Duty Automatic Adjustment SV03 : T Reel FG Duty Adjust 6-5-12. Saves SV Adjustments Data SV0C : SV NV-RAM Save 1-11. GY-2120 SCSI Control Software scsitool.exe 6-191 GY-2120WD/WS...
Page 416: Servo System Alignment
Automatic-Tracking Function Check SV1D : SAT Function Check Equipment and tool . Alignment Tape YR2-1 (Sony part No. 8-960-074-01) . Alignment Tape YR5-1 (Sony part No. 8-960-074-11) . PC (IBM PC/AT compatible machine) . Terminal Emulator Software (DEC VT100 or equivalent) .
Page 417 (4) If necessary, enter SV0C: SV NV-RAM Save ------>_ (Refer to Section 6-5-12). It takes time to terminate the command when an SV0C command is executed. To perform other servo adjustments continuously, execute the SV0C command after all the servo adjustments are completed. 6-193 GY-2120WD/WS...
Page 418: S Reel Fg Duty Automatic Adjustment
(3) If necessary, enter SV0C: SV NV-RAM Save ------>_ (Refer to Section 6-5-12). It takes time to terminate the command when an SV0C command is executed. To perform other servo adjustments continuously, execute the SV0C command after all the servo adjustments are completed. 6-194 GY-2120WD/WS...
Page 419: Capstan Fg Duty Automatic Adjustment
(3) If necessary, enter SV0C: SV NV-RAM Save ------>_ (Refer to Section 6-5-12). It takes time to terminate the command when an SV0C command is executed. To perform other servo adjustments continuously, execute the SV0C command after all the servo adjustments are completed. 6-195 GY-2120WD/WS...
Page 420: T Reel Motor Offset/Friction Automatic Adjustment
(3) If necessary, enter SV0C: SV NV-RAM Save ------>_ (Refer to Section 6-5-12). It takes time to terminate the command when an SV0C command is executed. To perform other servo adjustments continuously, execute the SV0C command after all the servo adjustments are completed. 6-196 GY-2120WD/WS...
Page 421: T Reel Motor Torque Automatic Adjustment
(3) If necessary, enter SV0C: SV NV-RAM Save ------>_ (Refer to Section 6-5-12). It takes time to terminate the command when an SV0C command is executed. To perform other servo adjustments continuously, execute the SV0C command after all the servo adjustments are completed. 6-197 GY-2120WD/WS...
Page 422: Free Speed Automatic Adjustment
(5) If necessary, enter SV0C: SV NV-RAM Save (Refer to Section 6-5-12). ------>_ It takes time to terminate the command when an SV0C command is executed. To perform other servo adjustments continuously, execute the SV0C command after all the servo adjustments are completed. 6-198 GY-2120WD/WS...
Page 423: Saves Sv Adjustments Data
(3) Press the Y key to initiate the check. Are you ready (y/n/else=Eject)? Yes Auto Check Start (4) Confirm that the messages “Check Complete” is Check Complete displayed. ------>_ When message “(Tape end detected)” is displayed, rewind the tape to tape top, then check again. 6-199 GY-2120WD/WS...
Page 424: Rf System Alignment
Saves RF Adjustments Data RF07 : RF NV-RAM Save Equipment and tool . Alignment Tape YR5-1 (Sony part No. 8-960-074-11) . Blank tape (DTF cassette tape) . PC (IBM PC/AT compatible computer) . Terminal Emulator Software (DEC VT100 or equivalent) .
Page 425 (4) When the adjustment succeeds, message “ALL Adjust ALL Adjust Complete Complete” is displayed. When message “(Tape end detected)” is displayed, ------>_ rewind the tape to tape top, then readjust. (5) If necessary, enter RF07: RF NV-RAM Save (Refer to Section 6-6-6). 6-201 GY-2120WD/WS...
Page 426: Pb Level Automatic Adjustment
Cch PB Level 75 Dch PB Level 81 The adjustment data in the right figure is one example. The value will be changed according to the condition. ------>_ (5) If necessary, enter RF07: RF NV-RAM Save (Refer to Section 6-6-6). 6-202 GY-2120WD/WS...
Page 427: Pb Pll Automatic Adjustment
B/Dch PLL 80 ------>_ The adjustment data in the right figure is one example. The value will be changed according to the condition. (5) If necessary, enter RF07: RF NV-RAM Save (Refer to Section 6-6-6). 6-203 GY-2120WD/WS...
Page 428: Pb Equalizer Automatic Adjustment
Cch Gain 6E Phase 6A Dch Gain 72 Phase 7F The adjustment data in the right figure is one example. The value will be changed according to the condition. ------>_ (5) If necessary, enter RF07: RF NV-RAM Save (Refer to Section 6-6-6). 6-204 GY-2120WD/WS...
Page 429 RF Adjust [NV-RAM Control] RF NV-RAM Save (2) Press the Y key to save the adjustment data into Are you ready (y/n)? Yes NV-RAM. (3) When the saving of the data is completed, message Saving..OK “Saving..OK” is displayed. Data Saved ------>_ 6-205 GY-2120WD/WS...
Page 430: Rec Current Automatic Adjustment
DIAG ALL Check DIAG : 001 digital all check IF-682/683 board Adjustment title Adjustments 6-2-1. DIAG ALL Check DIAG : 001 digital all check MEM-83 board Adjustment title Adjustments 6-2-1. DIAG ALL Check DIAG : 001 digital all check 6-206 GY-2120WD/WS...
Page 431 DIAG : 210 Free Speed Adjust 6-5-11. Drum Phase Automatic Adjustment DIAG : 211 RF Switching Position Adjust 6-5-12. Saves SV Adjustments Data DIAG : 212 SV NV-RAM Save 6-5-13. Automatic-Tracking Function Check DIAG : 229 SAT Function Check 6-207 GY-2120WD/WS...
Page 432: Electrical Adjustment After Mechanical Part Replacement
Saves SV Adjustments Data DIAG : 212 SV NV-RAM save T reel table assembly Adjustment title Adjustments 6-5-1. Reel/Capstan System All Automatic Adjustment DIAG : 201 Reel/Capstan All Adjust 6-5-12. Saves SV Adjustments Data DIAG : 212 SV NV-RAM save 6-208 GY-2120WD/WS...
Page 433 LCD will display as shown in Insert YR5 Tape the right. Insert the YR5-1 alignment tape. The LCD will change <LCD display> as shown on the right, and PB ALL Adjust will be DIAG: 300 executed. 6-209 GY-2120WD/WS...
Page 434 RF system will be saved in the NV RAM, and the LCD will display as shown below. Adjustment is completed. 4. End of DIAG Press the DIAG hole on the front panel continuously for approximately two seconds. 6-210 GY-2120WD/WS...
Page 435: Spare Parts
Therefore, specified parts should be used in the case of replacement. 2. Standardization of Parts Some spare parts supplied by Sony differ from those used for the unit. These are because of parts commonality and improvement. Parts list has the present standardized repair parts.
Page 436 Cassette Compartment Cassette Compartment Block 7-20 Printed Circuit Board Printed Circuit Board (Bottom Side) Block 7-22 Top Plate Ornamental Panel Block 7-24 Bottom Plate Ornamental Panel Front Panel Front Panel Block 7-26 Connector Panel Connector Panel Block 7-28 Power Block GY-2120WD/WS...
Page 437 Index Mechanical Deck Overall Block GY-2120WD/WS...
Page 438: Reel Chassis (S Side) Block
Reel Chassis (S Side) Block GY-2120WD/WS...
Page 439 Reel Chassis (S Side) Block GY-2120WD/WS...
Page 440: Reel Chassis (T Side) Block
Reel Chassis (T Side) Block GY-2120WD/WS...
Page 441 Reel Chassis (T Side) Block GY-2120WD/WS...
Page 442: Drum And Rotary Head Cleaner Block
Drum and Rotary Head Cleaner Block GY-2120WD/WS...
Page 443 Drum and Rotary Head Cleaner Block GY-2120WD/WS...
Page 444: Fe Head And S Tension Regulator Block
FE Head and S Tension Regulator Block 7-10 GY-2120WD/WS...
Page 445 FE Head and S Tension Regulator Block 7-11 GY-2120WD/WS...
Page 446: Threading Ring And Pinch Roller Block
Threading Ring and Pinch Roller Block 7-12 GY-2120WD/WS...
Page 447 Threading Ring and Pinch Roller Block 7-13 GY-2120WD/WS...
Page 448: Ctl/Tc Head And Capstan Motor Block
CTL/TC Head and Capstan Motor Block 7-14 GY-2120WD/WS...
Page 449 CTL/TC Head and Capstan Motor Block 7-15 GY-2120WD/WS...
Page 450: Pinch Press And Gear Box Block
Pinch Press and Gear Box Block 7-16 GY-2120WD/WS...
Page 451 Pinch Press and Gear Box Block 7-17 GY-2120WD/WS...
Page 452: T Tension Regulator Block
T Tension Regulator Block 7-18 GY-2120WD/WS...
Page 453 T Tension Regulator Block 7-19 GY-2120WD/WS...
Page 454: Cassette Compartment Block
Cassette Compartment Block 7-20 GY-2120WD/WS...
Page 455 Cassette Compartment Block 7-21 GY-2120WD/WS...
Page 456: Printed Circuit Board (Bottom Side) Block
Printed Circuit Board (Bottom Side) Block 7-22 GY-2120WD/WS...
Page 457 Printed Circuit Board (Bottom Side) Block 7-23 GY-2120WD/WS...
Page 458: Ornamental Panel Block
Ornamental Panel Block 7-24 GY-2120WD/WS...
Page 459 Ornamental Panel Block 7-25 GY-2120WD/WS...
Page 460: Front Panel Block
Front Panel Block 7-26 GY-2120WD/WS...
Page 461 Front Panel Block 7-27 GY-2120WD/WS...
Page 462: Connector Panel Block
Connector Panel Block 7-28 GY-2120WD/WS...
Page 463 Connector Panel Block 7-29 GY-2120WD/WS...
Page 464: Screws And Washers
7-685-871-01 s SCREW +BVTT 3X6 (S) 7-685-903-11 s SCREW +PTPWH 3X6 TYPE 2 7-685-903-21 s SCREW +PTPWH 3X8 TYPE 2 7-688-001-01 s W2, SMALL 7-688-002-03 s W2.6, MIDDLE 7-688-003-01 s W3, SMALL 7-688-003-11 s W3, MIDDLE 7-688-004-11 o W4, MIDDLE 7-30 GY-2120WD/WS...
Page 465: Electrical Parts List
1-251-378-11 s INLET (WITH NOISE FILTER) 1-468-201-11 s REGULATOR, SWITCHING A-8312-809-A o MOUNTED CIRCUIT BOARD, IF-682 1-533-630-11 s BREAKER, CIRCUIT 5A (for GY-2120WD) 1-762-300-11 s SWITCH, ROCKER A-8312-811-A o MOUNTED CIRCUIT BOARD, IF-683 1-543-316-31 s HEAD, SENSING “TAPE TOP SENSOR”...
Page 466 1-957-067-12 o HARNESS, SUB (EQ POWER) CN254 1-698-779-11 o FAN DC to PTC-59 board 1-951-933-11 o HARNESS, SUB (CAS SENS) to FULL ERASE HEAD CN911 1-957-058-11 o HARNESS, SUB (FULL ERASE) to PTC-71 board 1-951-979-11 o HARNESS, SUB (REEL POS) 7-32 GY-2120WD/WS...
Page 467: Supplied Accessories List
TAPE END SENSOR CN001 1-956-190-11 o HARNESS, SUB (END) to TAPE TOP SENSOR CN001 1-956-193-11 o HARNESS, SUB (TOP) to TR-78 board 1-951-925-11 o HARNESS, SUB (S-TEN REG) to TR-79 board 1-956-187-11 o HARNESS, SUB (T TEN) 7-33 GY-2120WD/WS...
Page 468: Optional Fixtures List
3-184-527-01 o CLEANING CLOTH (15 cm x 15 cm) 7-432-114-11 o LOCKING COMPOUND, 1401B (200 g) 7-661-018-18 o DIAMOND OIL, NT-68 (50 ml) 7-651-000-10 o SONY GREASE, SGL-601 (50 g) 7-700-736-01 o L-SHAPED HEXAGONAL WRENCH (d=1.27 mm) 7-700-736-03 o L-SHAPED HEXAGONAL WRENCH (d=2 mm) 7-700-736-05 o L-SHAPED HEXAGONAL WRENCH (d=1.5 mm)
Page 469: Block Diagrams & Frame Wiring
Section 8 Block Diagrams & Frame Wiring GY-2120WD/WS...
Page 470: Circuit Description Of Gy-2120
. C1 ERROR CORRECTION ECC encoder/ECC decoder transmission performed. . TRACK REVERSE INTERLEAVE Standard Memory Size is 32 MB. Factory option Buffer . C2 ERROR CORRECTION Memory are 16 MB, 48 MB or 64 MB by the additional board. GY-2120WD/WS...
Page 471: Overall
OPTION MEMORY (D-SUB 25 PIN) ENCODER ENCODER DECODER CONTROLLER SYS CPU SCSI CPU MEM BOARD RS-232C (D-SUB 25 PIN) BUFFER MEMORY SYSTEM DECODER MAIN SYSTEM 32 MB CONTROLLER CONTROLLER (SH-2) A BLOCK B BLOCK C BLOCK Overall GY-2120 GY2120-OVERALLBLOCK/M GY-2120WD/WS...
Page 472 EQ REC CONT2 REG -15V H;CTL REC H;CTL REC REG +15V CHECK PB LTC PB LTC REG -8V TO FRAME(2/2) REG +8V POWER SUPPLY CN214 M001 SV TXD FAN MOTOR SV RXD CN254 WITH FG FAN POWER FAN SENSE FAN GND GY-2120WD/WS...
Page 473: Frame Wiring
Frame Wiring (1/2) Frame Wiring (1/2) GY-2120WD GY-2120WS (MA-83) IF-682 IF-683 MEM-83 CN101 CN101 CN104 CN501 CN502 CN105 CN108 CN103 CN102 CN102 +DB12 +DB13 +DB14 +DB15 D DATA(0) D DATA(0) D DATA(36) D DATA(36) REMOTE REMOTE +DBP1 FAS ADR9 FAS ADR9...
Page 474 T REEL FG Vcc T REEL FG Vcc T-REEL FG 2 T-REEL FG CC MO T REEL FG GND T REEL FG GND T-REEL FG GND T REEL FG 1 T REEL FG 1 T-REEL FG 1 CASSETTE COMPARTMENT GY-2120WD/WS...
Page 475 Frame wiring (2/2) CAPSTAN FG(A) CAPSTAN FG(A) REG -8V REG -8V AC IN(N) IN CAPSTAN FG(B) CAPSTAN FG(B) REG +15V BRAKER REG +15V GY-2120 CAPSTAN FG(G) CAPSTAN FG(G) REG +8V REG +8V AC IN(L) IN LOT NO. 409- AC SW GY2120-FRAME/M-#2 GY-2120WD/WS...
Page 477 INSERT Dnld Tape is displayed on the LCD. To cancel download, press the DIAG hole before inserting the tape and then abort. <LCD display> (When starting execution) Insert Dnld Tape (When aborting) (‘ * ’ is blinking) DIAG: 099 9999 GY-2120WD/WS...
Page 478 “DIAG:099 9999” is displayed on the LCD. <LCD display> (When an error occurs) Dnld Read NG Tape is automatically ejected DIAG: 099 * 0991 (When aborting) Dnld Cancel Tape is automatically ejected DIAG: 099 * 9999 GY-2120WD/WS...
Page 479 SCSI CPU firmware version Press the UNLOAD button SY CPU firmware version SY: xx.xx Press the UNLOAD button SV: xx.xx SV CPU firmware version Press the UNLOAD button IF: xx.xx IF CPU firmware version Press the UNLOAD button Display repeated GY-2120WD/WS...
Page 480 DownLoad IF CPU Writing SV CPU firmware DownLoad SV CPU Automatic reboot DOWNLOAD MODE DownLoad SY CPU Writing SYS CPU firmware DownLoad SC CPU Writing SCSI CPU firmware Automatic reboot DOWNLOAD MODE Automatic tape ejection No Tape End of downloading GY-2120WD/WS...
Page 481 . If “y” or “Y” is entered accidentally, continue pressing the UNLOAD button while “Now Download- ing” is displayed on the LCD. GY-2120 automatically reboots, and returns to the normal mode. Howev- er as the tape will not be automatically ejected in this case, press the EJECT hole and eject the tape. GY-2120WD/WS...
Page 483 The material contained in this manual consists of and all other exposed metal parts for AC information that is the property of Sony Corporation and leakage. Check leakage as described below. is intended solely for use by the purchasers of the equipment described in this manual.
Page 484 GY-2120WD (SY) Printed in Japan Sony Corporation GY-2120WS (SY) E 1999. 2 08 Broadcasting & Professional Systems Company 9-967-718-03 ©1997...

This manual is also suitable for:

Gy-2120ws

Sony GY-2120WD Maintenance Manual

Manual Structure

1 Service Overview

2 Periodic Maintenance and Inspection

3 Replacement of Mechanical Parts

4 Mechanical Alignment

5 Tape Path Alignment

6 Maintenance Mode

7 Spare Parts

8 Block Diagrams & Frame Wiring

Quick Links

Troubleshooting

Related Manuals for Sony GY-2120WD

Summary of Contents for Sony GY-2120WD