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Pioneer DEH-1350B Service Manual

Pioneer DEH-1350B Service Manual

High power cd player with fm/am tuner
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Service
Manual
HIGH POWER CD PLAYER WITH FM/AM TUNER
DEH-1350B
- This service manual should be used together with the following manual(s):
Model No.
Order No.
CRT2559
DEH-1350/X1M/ES
CX-958
CRT2423
PIONEER CORPORATION
PIONEER ELECTRONICS SERVICE INC.
PIONEER EUROPE NV
Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER CORPORATION 2000
Mech. Module Remarks
S8.1
CD Mech. Module:Circuit Description, Mech.Description, Disassembly
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
ORDER NO.
CRT2593
X1M/ES
K-ZZA. DEC. 2000 Printed in Japan

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Summary of Contents for Pioneer DEH-1350B

  • Page 1 PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A. PIONEER EUROPE NV Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936 C PIONEER CORPORATION 2000 K-ZZA. DEC. 2000 Printed in Japan...
  • Page 2 DEH-1350B EXPLODED VIEWS AND PARTS LIST PACKING(Page 2) - PACKING SECTION PARTS LIST * : Non spare part Part No. Mark No. Symbol and Description DEH-1350/X1M/ES DEH-1350B/X1M/ES 11-2 Owner’s Manual CRD3281 CRD3407 11-3 Installation Manual CRD3283 CRD3408 12 Carton CHG4157...

  • Page 3: Table Of Contents

    PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A. PIONEER EUROPE NV Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936 C PIONEER CORPORATION 2000 K-ZZA. OCT. 2000 Printed in Japan...

  • Page 4: Safety Information

    DEH-2350,1350 - CD Player Service Precautions 2. During disassembly, be sure to turn the power off 1. For pickup unit(CXX1285) handling, please refer since an internal IC might be destroyed when a con- to"Disassembly"(see page 42). nector is plugged or unplugged. During replacement, handling precautions shall be 3.
  • Page 5 DEH-2350,1350 NOTE: - Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List. - Screws adjacent to ∇ mark on the product are used for disassembly. (1) PACKING SECTION PARTS LIST Mark No. Description Part No.
  • Page 6 DEH-2350,1350 2.2 EXTERIOR...
  • Page 7 DEH-2350,1350 (1) EXTERIOR SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Tuner Amp Unit 36 Holder CNC8042 See Contrast table(2) 2 Screw ASZ26P080FMC 37 Cover CNM6276 3 Screw BPZ26P080FMC 38 Panel CNS5355 4 Screw BSZ26P160FMC 39 Arm CNV4692...
  • Page 8 DEH-2350,1350 2.3 CD MECHANISM MODULE...
  • Page 9 DEH-2350,1350 - CD MECHANISM MODULE SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Control Unit CWX2411 46 ••••• 2 Connector(CN802) CKS2192 47 Ball CNR1189 3 Connector(CN801) CKS2193 48 Belt CNT1086 4 Connector(CN701) CKS2773 49 Roller CNV4509 5 Connector(CN101) CKS3486...

  • Page 10: Block Diagram And Schematic Diagram

    DEH-2350,1350 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM TUNER AMP UNIT FM/AM TUNER UNIT FM/AM 1ST IF 10.7MHz MPXREF 41kHz AMRF T51 Q51 CF51 CF52 CF53 ANTENNA AMDET CN402 AMANT L ch IC 2 FM MPX R ch ANT ADJ COMP MIXER, IF AMP, DET.
  • Page 11 DEH-2350,1350 CN301 REAR L CH Q346 SYSTEM CONTROLLER IC 601(1/2) PE5196A TUNPCE2 PDIO Q363 LOCL CN901 Q903 BACKUP FUSE BACK UP VST/ VCK/ VDT POWER AMP IN2_L FL— E.VOL FL– FIE/EQ IC 302 Frontout_L IN3_L PAL006A RL— IC 301 Rearout_L RL–...
  • Page 12 DEH-2350,1350 3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE) Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS LIST”. TUNER AMP UNIT Large size SCH diagram FM/AM TUNER UNIT FM(100%):-19.5dBs AM(30%):-30dBs CN402 Guide page Detailed page CN403 PE5196A...
  • Page 13 DEH-2350,1350 FM(100%):+3.6dBs AM(30%):-6.9dBs CD:+9.4dBs CD:+10.2dBs E.VOL FIE/EQ CN301 CN901 POWER AMP FM(100%):+29.6dBs AM(30%):+19.1dBs CD:+36.2dBs > CEK1136 600µH RESET A.SENS (DEH-1350/X1M/ES) B.SENS CN605 CD:+4.1dBs...
  • Page 14 DEH-2350,1350...
  • Page 15 DEH-2350,1350...
  • Page 16 DEH-2350,1350...
  • Page 17 DEH-2350,1350...
  • Page 18 DEH-2350,1350 3.3 KEYBOARD UNIT KEYBOARD UNIT LCD DRIVER KEY CONTROLLER LCD CAW1606(DEH-2350/X1M/ES), CAW1633(DEH-1350/X1...
  • Page 19 DEH-2350,1350 IL1801, 1802:CEL1651(14V 40mA) LOUD 50/X1M/ES)
  • Page 20 DEH-2350,1350 3.4 CD MECHANISM MODULE CONTROL UNIT PICKUP UNIT (SERVICE)(P8) CN101 RF-AMP, SE CL203IRXTU CL203IRXTU PHOTO UNIT(S8) CN802 Q1 CPT230SX-TU Q2 CPT230SX-TU SPINDLE MOTOR M3 CXB2562 CARRIAGE MOTOR M1 CXB2190 LOADING MOTOR CD DRIVER M2 CXB2195 CN801 BA05SFP 5V REGULATOR...
  • Page 21 DEH-2350,1350 SWITCHES: CONTROL UNIT S801 : HOME SWITCH..ON-OFF S802 : CLAMP SWITCH..ON-OFF The underlined indicates the switch position. MP, SERVO, DSP, DAC, LPF CN701...
  • Page 22 DEH-2350,1350 Note:1. The encircled numbers denote measuring pointes in the circuit diagram. 2. Reference voltage REFO:2.5V - Waveforms 1 RFI 1 CH1: RFI 1 CH1: RFI 0.5V/div. 0.5µs/div. 1V/div. 1V/div. 0.5ms/div. 0.5ms/div. 2 CH2: MIRR 2 CH2: MIRR Normal mode: play 5V/div.
  • Page 23 DEH-2350,1350 8 CH1: TE 8 CH1: TE 0 MD 0.2V/div. 0.5V/div. 0.5V/div. 0.1s/div. 20ms/div. 5ms/div. 9 CH2: TD ! CH2: SD 0.2V/div. 0.5V/div. Normal mode: play TEST mode: 100 Tracks jump(FWD) Normal mode: Play (12cm) → REFO → REFO → REFO →...
  • Page 24 DEH-2350,1350 ( CH1: R OUT 6 CH1: FE 8 CH1: TE 1V/div. 0.2V/div. 0.2V/div. 0.2ms/div. 1ms/div. 1ms/div. ) CH2: L OUT 3 CH2: FD 9 CH2: TD 1V/div. 0.5V/div. 0.5V/div. Normal mode: Play (1kHz 0dB) Normal mode: During AGC Normal mode: During AGC →...
  • Page 25 DEH-2350,1350...

  • Page 26: Pcb Connection Diagram

    DEH-2350,1350 CORD ASSY TUNER AMP UNIT 4. PCB CONNECTION DIAGRAM 4.1 TUNER AMP UNIT NOTE FOR PCB DIAGRAMS 1. The parts mounted on this PCB include all necessary parts for several destination. For further information for respective destinations, be sure to check with the schematic diagram.
  • Page 27 DEH-2350,1350 SIDE A ANTENNA PRE OUT FRONT...
  • Page 28 DEH-2350,1350 TUNER AMP UNIT...
  • Page 29 DEH-2350,1350 SIDE B FRONT...
  • Page 30 DEH-2350,1350 4.2 KEYBOARD UNIT SIDE A...
  • Page 31 DEH-2350,1350 SIDE B...
  • Page 32 DEH-2350,1350 4.3 CD MECHANISM MODULE SIDE A...
  • Page 33 DEH-2350,1350 SIDE B...

  • Page 34: Electrical Parts List

    DEH-2350,1350 5. ELECTRICAL PARTS LIST NOTES: - Parts whose parts numbers are omitted are subject to being not supplied. - The part numbers shown below indicate chip components. Chip Resistor RS1/_S___J,RS1/__S___J Chip Capacitor (except for CQS..) CKS.., CCS.., CSZS..=====Circuit Symbol and No.===Part Name Part No.
  • Page 35 DEH-2350,1350 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/16S473J CKSQYB474K16 RS1/16S822J CKSQYB474K16 RD1/4PU102J CKSQYB474K16 RS1/16S222J CKSQYB474K16 RD1/4PU222J CKSQYB474K16 RD1/4PU222J CKSQYB474K16 RS1/16S472J CKSQYB225K10 RD1/4PU222J (DEH-2350/X1M/ES) CKSRYB473K25 RS1/16S473J CKSRYB104K16 RS1/16S103J 3300µF/16V CCH1368...
  • Page 36 DEH-2350,1350 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RESISTORS CAPACITORS 1701 RS1/16S151J CKSRYB102K50 1702 RS1/16S181J CKSRYB104K16 1703 RS1/16S181J CEV101M6R3 1704 RS1/16S181J CEV470M6R3 1705 RS1/16S181J CKSQYB334K16 1706 RS1/16S151J CKSQYB334K16 1707 RS1/16S151J...

  • Page 37: Adjustment

    DEH-2350,1350 6. ADJUSTMENT 6.1 CD ADJUSTMENT 1) Precautions 2) Test Mode • This unit uses a single power supply (+5V) for the reg- This mode is used for adjusting the CD mechanism ulator. The signal reference potential, therefore, is module of the device. connected to REFO(approx.
  • Page 38 DEH-2350,1350 - Flow Chart Test Mode In Reset SOURCE Select CD New test mode BAND Power ON (Adjustment for T.Offset) Power ON (Not adjustment for T.Offset) 00 00 00 Display 99 99 99 Display Power OFF BAND Focus Close/ Focus Mode S Curve Check Select Auto Adjustment...
  • Page 39 DEH-2350,1350 6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT • Note : The grating angle of the PU unit cannot be adjusted after the PU unit is changed. The PU unit in the CD mecha- nism module is adjusted on the production line to match the CD mechanism module and is thus the best adjusted PU unit for the CD mechanism module.
  • Page 40 DEH-2350,1350 Ech → Xch 20mV/div, AC Grating waveform Fch → Ych 20mV/div, AC 0° 30° 45° 60° 75° 90°...

  • Page 41: General Information

    DEH-2350,1350 7. GENERAL INFORMATION 7.1 DIAGNOSIS 7.1.1 TEST MODE - Error Messages If a CD is not operative or stopped during operation due to an error, the error mode is turned on and cause(s) of the error is indicated with a corresponding number. This arrangement is intended at reducing nonsense calls from the users and also for facilitating trouble analysis and repair work in servicing.
  • Page 42 DEH-2350,1350 - New Test Mode S-CD plays the same way as before. If an error such as off focus, spindle unlocking, unreadable sub-code, or sound skipping occurs after setup, its cause and time occurred (in absolute time) are displayed. During setup, operational status of the control software (internal RAM: CPOINT) is displayed. These displays and functions are prepared for enhancing aging in the servicing and efficiency of trouble analysis.
  • Page 43 DEH-2350,1350 (4) Display of Operational Status (CPOINT) during Setup Status No. Contents Protective action Carriage move to home position started. None Carriage is moving toward inner diameter. Specified 10 seconds has been passed or failure on home switch. Carriage is moving toward outer diameter. Specified 10 seconds has been passed or failure on home switch.

  • Page 44: Disassembly

    DEH-2350,1350 7.1.2 DISASSEMBLY - Removing the Case Unit (not shown) 1. Remove the Case Unit. - Removing the CD Mechanism Module (Fig.1) Remove the four screws. Disconnect the connector and then remove the CD Mechanism Module (not shown). - Removing the Panel Assy (not shown) 1.
  • Page 45 DEH-2350,1350 - Removing the Upper Frame 1. Remove six Springs A, two Springs B and four Upper Frame Screws. 2. Remove two Tabs situated on rear side of the Upper Frame, remove two Arms on the front side, then remove two Tabs on the front side. - Removing the Carriage Mechanism Carriage Mechanism Section 1.
  • Page 46 DEH-2350,1350 - Removing the Guide Arm Assy 1. Remove a connector, a spring A and B Guide Arm Assy Section 2. Drive the Guide Arm Assy up aslant into rear side direction, then remove it from a Pin. Finally, drive the assembly approximately 45 degrees upward, then slide the assembly toward left side to remove it.
  • Page 47 DEH-2350,1350 - Removing the Loading Motor and Carriage Motor Guide 1. Remove the Spring and two Screws A. 2. Dismount the Loading Motor. 3. Remove the Belt, a Screw B, two Screws C, a Guide Screw Unit Carriage Motor and a Screw Unit. 4.

  • Page 48: Connector Function Description

    DEH-2350,1350 7.1.3 CONNECTOR FUNCTION DESCRIPTION PRE OUT ANTENNA 1. BACK UP 2. GND 3. NC 4. ACC 5. B.REM 6. NC 7. NC 8. NC 9. FL- 10. RL- 11. FL+ 12. RL+ 13. FR- 14. RR- 15. FR+ 16. RR+...

  • Page 49: Parts

    DEH-2350,1350 7.2 PARTS 7.2.1 IC Pin Functions(PE5196A) Pin No. Pin Name Format Function and Operation MODEL1 Model select input Noise level input NL2DT Noise level input 2 AVSS AVSS Stereo input SD signal input AREF1 AVREF1 KYDT Key data input DPDT Key data output SDBW...
  • Page 50 DEH-2350,1350 Pin No. Pin Name Format Function and Operation RDS data input reset Reset LDET PLL lock detection input RDS clock input asens ACC power sense input bsens Back up power sense input dsens Grille detach sense input TMUTE Tuner mute output Not used Crystal oscillator connection pin Crystal oscillator connection pin...
  • Page 51 DEH-2350,1350 - Pin Functions (PD6340A) Pin No. Pin Name Function and Operation SEG4-0 LCD segment output COM3-0 LCD common output VLCD LCD drive power supply 11-14 KST3-0 Key strobe output 15,16 KDT0,1 Key data input (analogue input) Remote control reception DPDT Display data input Not used...
  • Page 52 DEH-2350,1350 - Pin Functions (UPD63711GC) Pin No. Pin Name Function and Operation D.GND Logic circuit GND RFOK RFOK signal output Reset signal input Command/parameter identification signal input Data strobe signal input Clock signal input for serial data input/output Serial data and status signal output Serial data input xtalen Crystal oscillation control pin...
  • Page 53 DEH-2350,1350 Pin No. Pin Name Function and Operation TEST0 Test pin TEST1 Test pin ATEST Test pin A.GND Analog circuit GND Focus drive output Tracking drive output Sled drive output Spindle drive output DAC0 DAC output for adjustment DAC1 DAC output for adjustment DAC2 DAC output for adjustment DAC3...
  • Page 54 DEH-2350,1350 PAL006A Protector; Over voltage Reference amp_vcc Stand-by P-GND2 Circuit OUT2- Offset Protector; STBY Detection Thermal OUT2+ OUT1- Offset P-GND1 Detection OUT1+ Protector; S-GND Short circuit AC-GND OUT3+ Offset P-GND3 Detection OUT3- OUT4+ Offset MUTE Detection OUT4- P-GND4 SWITCH Protector; Over current limit Mute circuit...
  • Page 55 DEH-2350,1350 FM/AM TUNER UNIT FM/AM 1ST IF 10.7MHz MPXREF 41kHz AMRF T51 Q51 CF51 CF52 CF53 AMDET AMANT L ch IC 2 FM MPX R ch ANT ADJ COMP MIXER, IF AMP, DET. LDET FMANT RFGND FMRF CF202 IC 3 X901 AM 2ND IF IMG ADJ...

  • Page 56: Display

    DEH-2350,1350 7.2.2 DISPLAY - CAW1606(DEH-2350/X1M/ES), CAW1633(DEH-1350/X1M/ES)

  • Page 57: Operational Flow Chart

    DEH-2350,1350 7.3 OPERATIONAL FLOW CHART Power ON VDD=5V 68pin bsens 64pin BSENS=L asens 63pin ASENS=L dsens 65pin DSENS=L ADPW←H 20pin Starts communication with Grille microcomputer. 300ms SWVDD←L 41pin 300ms In case of the above signal, the communication Source keys with Grille microcomputer may fail. operative If the time interval is not 300msec, the oscillator may be defective.

  • Page 58: Operations And Specifications

    DEH-2350,1350 8. OPERATIONS AND SPECIFICATIONS 8.1 OPERATIONS Key Finder Head Unit +/– buttons LOCAL/BSM button EQ button CD loading slot EJECT button AUDIO button BAND button LOUD button Detach button 5/∞/2/3 buttons Buttons 1–6 SOURCE button CLOCK button...
  • Page 59 DEH-2350,1350...
  • Page 60 DEH-2350,1350...
  • Page 61 DEH-2350,1350...
  • Page 62 DEH-2350,1350 8.2 SPECIFICATIONS General CD player Power source ..14.4 V DC (10.8 – 15.1 V allowable) System ........Compact disc audio system Grounding system ........Negative type Usable discs ..........Compact disc Max. current consumption ........10.0 A Signal format ....Sampling frequency: 44.1 kHz Dimensions Number of quantization bits: 16;...
  • Page 63 PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A. PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936 C PIONEER CORPORATION 1999 K-ZZA. OCT. 1999 Printed in Japan...
  • Page 64 CX-958 1. CIRCUIT DESCRIPTIONS The LSI (UPD63711GC) used on this unit comprises six main blocks ; the pre-amp section, servo, signal processor, DAC, CD text decoder (not used on this model) and LPF. It also equips with nine automatic adjustment functions. 1.1 PRE-AMP SECTION This section processes the pickup output signals to create the signals for the servo, demodulator and...
  • Page 65 CX-958 2) RF Amplifier and RFAGC Amplifier 3) RFOK Circuit The photo-detector outputs (A + C) and (B + D) are This circuit generates the signal that is used for added, amplified and equalized on this LSI and then indicating the timing of closing the focus or state of the output to the RFI terminal as the RF signal.
  • Page 66 CX-958 4) Focus Error Amplifier The photo-detector outputs (A + C) and (B + D) are passed through a differential amplifier and an error amplifier, and then (A + C − B − D) is output from Pin 91 as the FE signal. The FE voltage low frequency component is : FE = (A + C −...
  • Page 67 CX-958 7) DFCT (Defect) Circuit 8) 3TOUT Circuit The DFCT signal is used for detecting defects on the The 3TOUT signal is generated by entering disturbance mirrored disc surface. It allows monitoring from the to the focus servo loop, comparing phase of HOLD pin (Pin 2).
  • Page 68 CX-958 10) EFM Circuit This circuit is used for converting the RF signal to digital signal consisting of “0” and “1”. The RFO signal from Pin 75 is externally AC coupled, entered to Pin 74, then applied to the EFM circuit. Loss of the RF signal due to scratches or stains on the disc, or vertical asymmetry of the RF due to variations in the discs manufactured can’t be eliminated by AC...
  • Page 69 CX-958 1.2 SERVO SECTION (UPD63711GC : IC201) The servo section controls the operations such as error signal equalizing, in focus, track jump and carriage move. The DSP is the signal processing section used for data decoding, error correction and interpolation processing, among others.
  • Page 70 CX-958 When the above conditions are all met and the focus is closed, the XSI pin goes to low from the current high, then 40 ms later, the microcomputer begins to monitor the RFOK signal after it that has been passed through REFO the low pass filter.
  • Page 71 CX-958 2) Tracking Servo System The digital equalizer is employed for the main equalizer on the tracking servo. Fig.12 shows the tracking servo IC301 IC201 UPD63711GC BA5985FM block diagram. R303 DIG. R302 LENS CONTROL JUMP PARAMETERS Fig.12 : TRACKING SERVO BLOCK DIAGRAM a) Track jump When the LSI receives the track jump command from the microcomputer, the operation is carried out...
  • Page 72 CX-958 b) Brake Circuit The servo retracting performance can be deteriorate during the setup or track jump operation. In this connection, the brake circuit is used to ensure steady retract of the tracking servo. The brake circuit detects in which direction the lens is moving, then slows down its move by outputting the drive signal that moves the lens into the opposite direction alone.
  • Page 73 CX-958 3) Carriage Servo System The carriage servo supplies the tracking equalizer’s low-frequency component (lens position data) output to the carriage equalizer, then, after providing a fixed amount of gain to it, outputs the drive signal from the LSI. This signal is then applied to the carriage motor via the driver IC.
  • Page 74 CX-958 4) Spindle Servo System IC301 IC201 UPD63711GC BA5985FM The spindle servo has the following modes. 1 Kick : SPEED ERROR SIGNAL This mode is used for accelerating the disc rotation during setup. DIG. SPINDLE BLOCK MOTOR SIGNAL 2 Offset : PHASE ERROR SIGNAL (a) After the kick is over in the setup, this mode is turned on until changing to rough servo mode.
  • Page 75 CX-958 1.3 AUTOMATIC ADJUSTMENT FUNC- TIONS Every circuit adjustment on the CD-LSI of this system is automated. Every circuit adjustment is automatically implemented when the disc is inserted or the CD mode is selected from the source key. The following describes how the adjustments are executed.
  • Page 76 CX-958 5) Focus and Tracking Automatic Gain Control This adjustment takes place at the following timing : • When the focus close alone is completed during the This function is used for implementing automatic setup process. control of the focus and tracking loop gain. •...
  • Page 77 CX-958 8) Initial Adjusting Values All the automatic adjustments are implemented using the previous adjustment values as the initial values unless the microcomputer power (the backup power) is not turned off (though there are some exceptions). When the backup is turned off, automatic adjustment is executed based on the initial values rather than the previous adjustment values.
  • Page 78 CX-958 1.4 POWER SUPPLY AND LOADING SECTION The power supply of the system uses VD (8.3V) from the mother board. VD is fed to 5 channel CD driver IC, 5V Reg IC and disc detection LED. The microcomputer turns on or off the CD driver and the 5V using “CONT”...
  • Page 79 CX-958 2. MECHANISM DESCRIPTIONS Centering Arm Centering Arm - Loading Operation (when a 12 cm disc is used) Disc Detection Arm 1. Insert a 12 cm disc (the sensor turns on the motor Lock Lever revolution). 2. The disc pushes the Lock Lever in, thereby resetting the lock currently applied to the Centering Arms.
  • Page 80 CX-958 3. DISASSEMBLY - Removing the Upper Frame Upper Frame 1. Remove six Springs A, two Springs B and four Screws. 2. Remove two Tabs situated on rear side of the Upper Frame, remove two Arms on the front side, then remove two Tabs on the front side.
  • Page 81 CX-958 - Removing the Guide Arm Assy 1. Remove a connector, a spring A and B Guide Arm Assy Section 2. Drive the Guide Arm Assy up aslant into rear side direction, then remove it from a Pin. Finally, drive the assembly approximately 45 degrees upward, then slide the assembly toward left side to remove it.
  • Page 82 CX-958 - Removing the Loading Motor and Carriage Motor Guide 1. Remove the Spring and two Screws A. 2. Dismount the Loading Motor. 3. Remove the Belt, a Screw B, two Screws C, a Guide Screw Unit Carriage Motor and a Screw Unit. 4.

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Deh-1350b x1m/es

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