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AEG VCR 4500 Service Manual

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SERVICE MANUAL
Sec. 1: Main Section
I Specifications
I Preparation for Servicing
I Adjustment Procedures
I Schematic Diagrams
I CBA's
I Exploded views
I Parts List
VIDEO CASSETTE RECORDER
VCR 4500
VCR 4505
Sec. 2: Deck Mechanism Section
I Standard Maintenance
I Alignment for Mechanism
I Disassembly/Assembly of Mechanism
I Alignment Procedures of Mechanism
I Deck Exploded Views
I Deck Parts List
PAL

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Summary of Contents for AEG VCR 4500

  • Page 1 I Alignment for Mechanism I Adjustment Procedures I Disassembly/Assembly of Mechanism I Schematic Diagrams I Alignment Procedures of Mechanism I CBA’s I Deck Exploded Views I Exploded views I Deck Parts List I Parts List VIDEO CASSETTE RECORDER VCR 4500 VCR 4505...

  • Page 2: Table Of Contents

    MAIN SECTION VIDEO CASSETTE RECORDER VCR 4500/VCR 4505 Sec. 1: Main Section I Specifications I Preparation for Servicing I Adjustment Procedures I Schematic Diagrams I CBA’s I Exploded Views I Parts List TABLE OF CONTENTS Specifications ............... . . 1-1-1 Important Safety Precautions .

  • Page 3: Specifications

    E-E Mode 4-2. Video S/N E-E Mode 4-3. Audio output E-E Mode 4-4. Audio S/N E-E Mode 5. Hi-Fi Audio [ VCR 4500 ] 5-1. Output SP Mode 5-2. Dynamic Range SP Mode 5-3. Freq. resp (6dB B.W) 20 ~ 20K SP Mode Note: Nominal specs represent the design specs.

  • Page 4: Important Safety Precautions

    IMPORTANT SAFETY PRECAUTIONS Product Safety Notice J. Be careful that foreign objects (screws, solder droplets, etc.) do not remain inside the set. Some electrical and mechanical parts have special K. Crimp type wire connector safety-related characteristics which are often not evi- The power transformer uses crimp type connectors dent from visual inspection, nor can the protection they which connect the power cord and the primary side...

  • Page 5: Safety Check After Servicing

    Safety Check after Servicing Chassis or Secondary Conductor Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts, and wires have been returned to their original posi- Primary Circuit Terminals tions. Afterwards, do the following tests and confirm the specified values to verify compliance with safety standards.

  • Page 6: Standard Notes For Servicing

    STANDARD NOTES FOR SERVICING Circuit Board Indications Pb (Lead) Free Solder When soldering, be sure to use the Pb free solder. a. The output pin of the 3 pin Regulator ICs is indi- cated as shown. How to Remove / Install Flat Pack-IC Top View Bottom View 1.
  • Page 7 3. The flat pack-IC on the CBA is affixed with glue, so (3) Bottom of the flat pack-IC is fixed with glue to the be careful not to break or damage the foil of each CBA; when removing entire flat pack-IC, first apply pin or the solder lands under the IC when removing soldering iron to center of the flat pack-IC and heat up.

  • Page 8: Instructions For Handling Semi-Conductors

    Instructions for Handling Semi-conductors Electrostatic breakdown of the semi-conductors may Fine Tip Soldering Iron occur due to a potential difference caused by electro- static charge during unpacking or repair work. 1. Ground for Human Body Be sure to wear a grounding band (1MΩ) that is prop- erly grounded to remove any static electricity that may be charged on the body.

  • Page 9: Preparation For Servicing

    PREPARATION FOR SERVICING How to Enter the Service Mode About Optical Sensors Caution: An optical sensor system is used for the Tape Start and End Sensors on this equipment. Carefully read and follow the instructions below. Otherwise the unit may operate erratically. What to do for preparation Insert a tape into the Deck Mechanism Assembly and press the PLAY button.

  • Page 10: Cabinet Disassembly Instructions

    [7] Cylinder Shield 2. When reassembling, solder wire jumpers as shown in Fig. D5. [8] Jack Board [ VCR 4500 ] 3. Before installing the Deck Assembly, be sure to place the pin of LD-SW on Main CBA as shown in 2.
  • Page 11 [ VCR 4500 ] (L-2) (L-2) (S-2) (S-2) (S-3) (S-2) (S-3) (S-4) [3]VCR Chassis (S-3) Unit (S-2) [2] Front Assembly (L-1) Fig. D2 [ VCR 4505 ] (S-2) (S-3) (S-2) (S-2) (S-4) [3] VCR Chassis (S-3) Unit (S-2) Fig. D3-2...
  • Page 12 [7] Cylinder Shield Cylinder Assembly FE Head (S-7) SW507 ACE Head LD-SW Assembly [6] Main CBA [ VCR 4500 ] [5] Deck [5] Deck Assembly [8] Jack Board Assembly (L-3) Cam Gear Hole Shaft Hole LD-SW [6] Main CBA [6] Main CBA (S-6) Fig.

  • Page 13: Electrical Adjustment Instructions

    ELECTRICAL ADJUSTMENT INSTRUCTIONS General Note: "CBA" is an abbreviation for Head Switching Position Adjustment "Circuit Board Assembly." Purpose: NOTE: To determine the Head Switching position during 1.Electrical adjustments are required after replacing playback. circuit components and certain mechanical parts. Symptom of Misadjustment: It is important to do these adjustments only after all repairs and replacements have been com- May cause Head Switching noise or vertical jitter...

  • Page 14: Block Diagrams

    BLOCK DIAGRAMS Servo/System Control Block Diagram 1-7-1 HG462BLS...
  • Page 15 Video Block Diagram 1-7-2 HG462BLV...
  • Page 16 Audio Block Diagram ( A ) 1-7-3 HG462BLA...
  • Page 17 Audio Block Diagram ( B ) 1-7-4 HG210BLA...
  • Page 18 Hi-Fi Audio Block Diagram ( A ) 1-7-5 HG462BLH...
  • Page 19 Power Supply Block Diagram HG462BLP 1-7-6...

  • Page 20: Function Indicator Symbols

    The following symbols will appear on the indicator panel to indicate the current mode or operation of the VCR. On-screen modes will also be momentarily displayed on the tv screen when you press the operation buttons. Display panel [ VCR 4500 ] MODE INDICATOR ACTIVE POWER ON "...
  • Page 21 [ VCR 4505 ] TAPE IN " H "= LED Light on, " L "= LED Light off MODE INDICATOR ACTIVE STANDBY Power on = " H " Power off = " L " FUNCTION VCR mode = " H " TV mode = "...
  • Page 22 TV screen Note: OSD for mechanical error will be displayed for 5 sec. after the mechanical error occurs. When reel and capstan mechanism is not functioning When the drum is not working properly correctly Fig. 1 Fig. 4 When tape loading mechanism is not functioning cor- P-ON Power safety detection rectly Fig.

  • Page 23: Schematic Diagrams / Cba's And Test Points

    SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS Standard Notes Notes: WARNING 1. Do not use the part number shown on these draw- ings for ordering. The correct part number is shown Many electrical and mechanical parts in this chassis in the parts list, and may be slightly different or have special characteristics.
  • Page 24 LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES: 1. CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE. 2. CAUTION: Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit. If Main Fuse (F001) is blown, first check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply.
  • Page 25 Comparison Chart of Main 1/6 Schematic Diagram Models and Marks MODEL MARK VCR 4500 VCR 4505 1-8-3 1-8-4 HG462SCM1...
  • Page 26 Comparison Chart of Main 2/6 & Sensor Schematic Diagrams Models and Marks MODEL MARK VCR 4500 VCR 4505 1-8-5 1-8-6 HG462SCM2...
  • Page 27 Comparison Chart of Main 3/6 Schematic Diagram Models and Marks MODEL MARK VCR 4500 VCR 4505 1-8-7 1-8-8 HG462SCM3...
  • Page 28 Comparison Chart of Main 4/6 & Jack Schematic Diagrams Models and Marks MODEL MARK VCR 4500 VCR 4505 1-8-9 1-8-10 HG462SCM4...
  • Page 29 Comparison Chart of Main 5/6 Schematic Diagram Models and Marks MODEL MARK VCR 4500 VCR 4505 CAUTION ! CAUTION ! For continued protection against fire hazard, Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit.
  • Page 30 Comparison Chart of Main 6/6 Schematic Diagram ( A ) Models and Marks MODEL MARK VCR 4500 VCR 4505 1-8-13 1-8-14 HG462SCM6...
  • Page 31 Comparison Chart of AFV Schematic Diagram ( A ) Models and Marks MODEL MARK VCR 4500 VCR 4505 1-8-15 1-8-16 HG462SCAFV...
  • Page 32 Main CBA Top View CAUTION ! BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER CAUTION ! For continued protection against fire hazard, SUPPLY CIRCUIT , AN ISOLATION TRANSFORMER MUST BE USED. Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. replace only with the same type fuse.
  • Page 33 Main CBA Bottom View CAUTION ! BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER CAUTION ! For continued protection against fire hazard, SUPPLY CIRCUIT , AN ISOLATION TRANSFORMER MUST BE USED. Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. replace only with the same type fuse.
  • Page 34 Jack CBA Top View Jack CBA Bottom View 1-8-21 1-8-22 BHG470F01013C...
  • Page 35 AFV CBA Top View ( A ) AFV CBA Bottom View ( A ) Comparison Chart of Models and Marks MODEL MARK VCR 4500 VCR 4505 BHC400F01093 Sub Jack CBA Top View ( A ) Sub Jack CBA Bottom View ( A ) BHG470F01013B...

  • Page 36: Waveforms

    WAVEFORMS (TP301 of Main CBA) UPPER (TP502 of Main CBA) LOWER C-PB 10mV x 10 RF-SW 0.5V x 10 (J23 of Main CBA) UPPER (TP502 of Main CBA) LOWER V-OUT 0.1V x 10 RF-SW 0.5V x 10 50µs (J23 of Main CBA) V-OUT E-E 10µs 50mV x 10...

  • Page 37: Wiring Diagram

    WIRING DIAGRAM 1-10-1 HG462WI...

  • Page 38: Ic Pin Function Descriptions

    Comparison Chart of Models and Marks Signal Active Mark Function Name Level Model Mark Head Amp IN H-A- VCR 4500 Comparator COMP Signal VCR 4505 N.U. Not Used Video Head IC501( SERVO / SYSTEM CONTROL IC ) OUT RF-SW Switching Pulse “H”...
  • Page 39 Signal Active Signal Active Mark Function Mark Function Name Level Name Level System Reset Capstan Power OUT C-POW- IN RESET Signal Switching (Reset=”L”) Signal IN XC-IN Sub Clock Power On IN P-ON-H Signal at High OUT XC-OUT Sub Clock LED Clock OUT DRV- Driver IC DATA...
  • Page 40 Signal Active Mark Function Name Level Drum Motor IN D-PFG Pulse PULSE Generator AMPVRE V-Ref for CTL F OUT AMPVRE V-Ref for CTL F IN P80/C P80/C Terminal Playback/ CTL (-) Record Control Signal (-) Playback/ CTL (+) Record Control Signal (+) CTL AMP AMPC...

  • Page 41: Lead Identifications

    LEAD IDENTIFICATIONS 2SC2785(F,H,J) 2SA1015-GR(TPE2) BA1F4M-T 2SA1020(Y) PT6958-FN-TP BN1F4M-T 2SC1815-BL(TPE2) BN1L4M-T 2SC1815-GR(TPE2) KRA103M 2SC1815-Y(TPE2) KRA104M 2SC2120-Y(TPE2) KRC103M 2SC3266-Y(TPE2) KTA1266(GR) KTA1267(GR,Y) KTA1281(Y) KTC3203(Y) KTC3199(BL,GR,Y) KTC3205(Y) 2SK3566 BU4052BCF-E2 E C B E C B CD4052BCSJX TC4052BF(EL) EL817A EL817B BR24L02F-WE2 EL817C CAT24WC02JI LTV-817B-F LTV-817C-F PS2561A-1(Q,W) G D S LA71750EM-MPB-E...

  • Page 42: Exploded Views

    EXPLODED VIEWS Front Panel [ VCR 4500 ] [ VCR 4505 ] 1-13-1 HG462FEX...
  • Page 43 2L011 JACK CBA 2L011 2L012 2L022 2L042 2L021 2L021 2L021 2L021 2L051 2L022 2L041 2L041 [ VCR 4500 ] 2L021 SUB JACK CBA SENSOR CBA 2L031 AFV CBA 2L041 2L099 2B46 [ VCR 4500 ] MAIN CBA 1-13-2 HG462CEX...
  • Page 44 Packing [ VCR 4505 ] X20A X20B X20C X20D X20E Unit Some Ref. Numbers are not in sequence. 1-13-3 HG462PEX...

  • Page 45: Mechanical Parts List

    Comparison Chart of Models and Marks X20B! OWNER'S MANUAL(GERMAN) HG462ED 0VMN04113 X20B! OWNER'S MANUAL(GERMAN) HG210ED 0VMN04110 Model Mark X20C! OWNER'S MANUAL(DUTCH) HG462ED 1VMN20039 VCR 4500 X20C! OWNER'S MANUAL(DUTCH) HG210ED 1VMN20043 VCR 4505 X20D! OWNER'S MANUAL(ITALIAN) HG462ED 1VMN20040 X20D! OWNER'S MANUAL(ITALIAN) HG210ED 1VMN20044 X20E!

  • Page 46: Electrical Parts List

    C151 CHIP CERAMIC CAP .(1608) F Z 0.1µF/50V or CHD1JZ30F104 Model Mark CHIP CERAMIC CAP .(1608) F Z 0.1µF/25V or CHD1EZ30F104 VCR 4500 CHIP CERAMIC CAP . FZ Z 0.1µF/50V CHD1JZ3FZ104 VCR 4505 C152 CHIP CERAMIC CAP .(1608) F Z 0.1µF/50V or CHD1JZ30F104 CHIP CERAMIC CAP .(1608) F Z 0.1µF/25V or CHD1EZ30F104...
  • Page 47 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. CHIP CERAMIC CAP .(1608) B K 0.047µF/25V CHD1EK30B473 CHIP CERAMIC CAP . CG J 68pF/50V CHD1JJ3CG680 C312 CHIP CERAMIC CAP . B K 8200pF/50V CHD1JK30B822 C346 CHIP CERAMIC CAP . CH J 68pF/50V or CHD1JJ3CH680 C313 CHIP CERAMIC CAP .(1608) F Z 0.1µF/50V or CHD1JZ30F104...
  • Page 48 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. C460 CHIP CERAMIC CAP .(1608) B K 4700pF/50V CHD1JK30B472 C516 CHIP CERAMIC CAP . CH J 18pF/50V or CHD1JJ3CH180 C461 ELECTROLYTIC CAP . 22µF/10V M H7 CE1AMAVSL220 CHIP CERAMIC CAP . CG J 18pF/50V CHD1JJ3CG180 C462 CHIP CERAMIC CAP .(1608) B K 0.01µF/50V...
  • Page 49 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. CHIP CERAMIC CAP . CG J 470pF/50V CHD1JJ3CG471 D056 ZENER DIODE DZ-5.6BSCT265 or NDTC0DZ5R6BS C757 CHIP CERAMIC CAP .(1608) CH J 470pF/50V CHD1JJ3CH471 ZENER DIODE MTZJT-775.6C QDTC0MTZJ5R6 D057 ZENER DIODE DZ-10BSBT265 or NDTB00DZ10BS CHIP CERAMIC CAP .
  • Page 50 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. L251 INDUCTOR 5.6µH-K-26T LLAXKATTU5R6 RES. BUILT-IN TRANSISTOR BN1F4M-T QQSZ00BN1F4M L301 INDUCTOR(100µH K) LAP02TA101K LLAXKATTU101 Q405 CHIP TRANSISTOR FMG4A T148 or QQ2Z000FMG4A L403 INDUCTOR 47µH-K-5FT LLARKBSTU470 CHIP TRANSISTOR RN1511(TE85R) QQ2Z00RN1511 L451 INDUCTOR 47µH-K-5FT...
  • Page 51 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. CARBON RES. 1/6W J 100k Ω or CHIP RES.(1608) 1/10W J 18k Ω R014 RCX6JATZ0104 R313 RRXAJR5Z0183 CARBON RES. 1/4W J 100k Ω CHIP RES.(1608) 1/10W J 18k Ω RCX4JATZ0104 R314 RRXAJR5Z0183...
  • Page 52 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. CHIP RES.(1608) 1/10W J 5.6k Ω CARBON RES. 1/4W G 22k Ω R455 RRXAJR5Z0562 RCX4GATZ0223 CHIP RES.(1608) 1/10W J 39k Ω CARBON RES. 1/6W G 1.5k Ω or R456 RRXAJR5Z0393 R538...
  • Page 53 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. SW502 TACT SWITCH KSM0614B or SST0101HH013 X301 X'TAL 4.433619MHz or FXC445LLN001 TACT SWITCH SKQSAF001A or SST0101AL041 X'TAL 4.433619MHz 1811388 TACT SWITCH TC-1104(H=9.5) SST0101DNG01 X501 X'TAL 12.000MHz FXD126LDS001 SW503 TACT SWITCH KSM0614B or SST0101HH013 X502...
  • Page 54 AFV CBA Ref. No. Mark Description Part No. L101 BEAD CORE B16 RH 3.5X10X1.3 XL03010XM001 Ref. No. Mark Description Part No. L102 BEAD CORE B16 RH 3.5X10X1.3 XL03010XM001 AFV CBA 0VSA14857 TRANSISTORS Consists of the following Q101 TRANSISTOR KTA1266(GR) or NQS40KTA1266 CAPACITORS TRANSISTOR 2SA1015-GR(TPE2)
  • Page 55 DECK MECHANISM SECTION VIDEO CASSETTE RECORDER VCR 4500/VCR 4505 Sec. 2: Deck Mechanism Section I Standard Maintenance I Mechanism Alignment Procedures I Disassembly / Assembly of Mechanism I Deck Exploded Views I Deck Parts List TABLE OF CONTENTS Standard Maintenance ..............2-1-1 Service Fixture and Tools .

  • Page 56: Standard Maintenance

    STANDARD MAINTENANCE Service Schedule of Components This maintenance chart shows you the standard of replacement and cleaning time for each part. Because those may replace depending on environment and purpose for use, use the chart for reference. H: Hours : Cleaning I: Replace Deck Periodic Service Schedule...

  • Page 57: Video Head

    Cleaning Cleaning of ACE Head Clean the head with a cotton swab. Cleaning of Video Head Procedure Clean the head with a head cleaning stick or chamois 1.Remove the top cabinet. cloth. 2.Dip the cotton swab in 90% isopropyl alcohol and Procedure clean the ACE Head.

  • Page 58: Service Fixture And Tools

    SERVICE FIXTURE AND TOOLS J-1-1, J-1-2 Ref. No. Name Part No. Adjustment J-1-1 Alignment Tape FL6A Head Adjustment of ACE Head J-1-2 Alignment Tape FL6N8 Azimuth and X Value Adjustment of ACE Head / (2 Head model) Adjustment of Envelope Waveform FL6NS8 (4 Head model) Guide Roller Adj.

  • Page 59: Mechanical Alignment Procedures

    MECHANICAL ALIGNMENT PROCEDURES Explanation of alignment for the tape to correctly run B. Method to place the Cassette Holder in the tape- starts on the next page. Refer to the information below loaded position without a cassette tape on this page if a tape gets stuck, for example, in the 1.
  • Page 60 1. Tape Interchangeability Alignment Note: To do these alignment procedures, make sure that the Tracking Control Circuit is set to the preset position every time a tape is loaded or unloaded. (Refer to page 2-3-4, procedure 1-C, step 2.) Equipment required: Dual Trace Oscilloscope VHS Alignment Tape (FL6N8 --- 2 head model, FL6NS8 --- 4 head model)
  • Page 61 1-A. Preliminary/Final Checking and 4. If creasing or snaking is apparent, adjust the Tilt Alignment of Tape Path Adj. Screw of the ACE Head. (Fig. M6) Purpose: To make sure that the tape path is well stabilized. Azimuth Adj. Screw Symptom of Misalignment: If the tape path is unstable, the tape will be damaged.
  • Page 62 5. To shift the CTL waveform, press CH UP or CH 5. When Guide Rollers [2] and [3] (Refer to Fig. M3) DOWN button on the remote control unit. Then are aligned properly, there is no envelope drop make sure that the maximum output position of PB either at the beginning or end of track as shown in ±...
  • Page 63 1-D. Azimuth Alignment of Audio/Con- 2. When the tape has been curled up or bent, turn the trol/ Erase Head alignment screw to adjust the height of REV Post. (Refer to Fig. M11 and M13.) Purpose: To correct the Azimuth alignment so that the Audio/ Control/Erase Head meets tape tracks properly.

  • Page 64: Disassembly/Assembly Procedures Of Deck Mechanism

    DISASSEMBLY/ASSEMBLY PROCEDURES OF DECK MECHANISM Before following the procedures described below, be sure to remove the deck assembly from the cabinet. (Refer to CABINET DISASSEMBLY INSTRUCTIONS.) All the following procedures, including those for adjustment and replacement of parts, should be done in Eject mode;...
  • Page 65 REMOVAL INSTALLATION STEP START- REMOVE/*UNHOOK/ /LOC. PART ADJUSTMENT Fig. No. UNLOCK/RELEASE/ CONDITION UNPLUG/DESOLDER BT Arm DM2H, DM14H *(P-5) [33] [26] Loading Arm (SP) (+)Refer to Alignment [34] [26] DM2H, DM14H Assembly Sec.Page 2-5-1 Loading Arm (TU) (+)Refer to Alignment [35] [34] DM2H, DM14H Assembly...

  • Page 66: Top View

    Top View [44] [45] [49] [46] [14] [13] [11] [15] [38] [10] [12] [37] [36] [43] [32] [41] [31] [40] [42] Fig. DM1H Bottom View [19] [35] [34] [25] [23] [24] [26] [27] [22] [28] [20] [33] Fig. DM2H 2-4-3 U29PHSDA...
  • Page 67 (S-1) (S-1) (L-1) (L-3) (L-2) (S-1A) (P-1) Installation of [3] and [6] First, insert [6] diagonally in [3] as shown below. Then, install [6] in [3] while pushing (L-1) in a direction of arrow. After installing [6] in [3], confirm that pin A of [3] enters hole A of [6] properly.
  • Page 68 [11] (S-4A) (L-4) [49] (P-3) [13] [50] Removal of [11] [12] (L-12) 1) Remove screw (S-4A). 2) Unhook spring (P-2). [10] Release (L-4) while (P-2) holding [12] with a finger. Loosen a finger holding [12] and remove [11]. (S-2) Pin of [12] Pin of [10] Groove of [27] When reassembling [10] and...
  • Page 69 Installation of [13] and [12] (S-5) [14] (S-6) [13] [15] Hook spring (P-3) up to [12] and [13], then install then to (P-3) the specified position so that [12] will be floated slightly while holding [12] and [13]. (Refer to Fig. A.) [12] Fig.
  • Page 70 (C-1) turn [22] (S-8) [20] (L-6) [21] [19] Cap Belt Pin on [22] Installation position of Cap Belt [20] Cap Belt [27] Position of pin on [22] Fig. DM12H [19] View for A Fig. DM11H 2-4-7 U29PHSDA...
  • Page 71 Installation of [26] [26] (C-3) Position of Mode Lever when installed Pin of [33] Pin of [37] (S-9) Pin of [36] (L-8) [23] (L-7) Bottom View [24] (C-5) [26] (C-4) (C-2) [28] [27] [25] [29] [30] Align [26] and [27] as shown. First groove on [27] [27] First tooth on [47]...
  • Page 72 [38] [36] [43] (P-6) turn [39] (L-10) turn [42] turn [47] [48] Slide [37] Fig. DM17H (C-7) [41] (C-6) [40] Fig. DM15H [45] [44] [46] (L-11) Slide Plate (S-11) Fig. DM16H 2-4-9 U29PHSDA...

  • Page 73: Alignment Procedures Of Mechanism

    ALIGNMENT PROCEDURES OF MECHANISM Alignment 1 The following procedures describe how to align the individual gears and levers that make up the tape load- Loading Arm (SP) and (TU) Assembly ing/unloading mechanism. Since information about the state of the mechanism is provided to the System Install Loading Arm (SP) and (TU) Assembly so that Control Circuit only through the Mode Switch, it is their triangle marks point to each other as shown in...

  • Page 74: Deck Exploded Views

    B553 B411 B567 L1053 B410 L1051 Chassis Assembly Top View (Lubricating Point) L1322 B501 L1450 L1450 L1466 B121 B126 B492 B571 [ VCR 4500 ] Chassis Assembly Some Ref. Numbers are not in sequence. Bottom View (Lubricating Point) 2-6-1 HG462DEX...
  • Page 75 Deck Mechanism View 2 Mark Description Floil G-684G or Multemp MH-D (Blue grease) B587 B521 B487 SLIDUS OIL #150 B416 B591 SANKOUL FG84M (Yellow grease) B590 B522 L1406 B148 B573 B499 B508 B574 B592 B585 B558 B518 B564 B557 B414 B572 B565 L1151...
  • Page 76 Deck Mechanism View 3 Mark Description Floil G-684G or Multemp MH-D (Blue grease) L1321 SLIDUS OIL #150 B347 L1321 B355 B354 B483 L1341 B425 B482 B562 B300 B563 B313 B529 B360 B359 B361 B555 B303 Some Ref. Numbers are not in sequence. B514 2-6-3 HG462DEX...

  • Page 77: Deck Parts List

    Comparison Chart of Models and Marks Ref. No. Mark Description Part No. WORM HOLDER(R) MK12 0VM204324 Model Mark B507 REEL WASHER MK9 5*2.1*0.5 0VM410058 VCR 4500 B508 S BRAKE SPRING(HI) MK12 0VM414899 VCR 4505 B513 P .S.W F 6*2.55*0.5 0VM402629A B514 SCREW RACK MK10 0VM411535 B516 REEL WASHER MK9 5*2.1*0.5...
  • Page 78 VCR 4500/VCR 4505 HG462ED/HG210ED 2004-04-12...

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