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CD MECHANISM ASSY
X92-4470-0x
SERVICE MANUAL
DESCRIPTION MECHANISM
X92-4470-00 (DXM-6500W)
X92-4470-01 (DXM-6501W)
X92-4470-02 (DXM-6502W)
X92-4470-03 (DXM-6503W)
CONSTRUCTION OF MAJOR PARTS
disc guide assy
damper bracket
roller lever assy
dumper (X4)
roller spring
Mecha PCB
© 2002-1 PRINTED IN JAPAN
B51-7899-00 ( N ) 3412
outer-chassis
floating spring (X4)
traverse chassis assy

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Summary of Contents for Kenwood X92-4470-00

  • Page 1 CD MECHANISM ASSY X92-4470-0x SERVICE MANUAL © 2002-1 PRINTED IN JAPAN B51-7899-00 ( N ) 3412 DESCRIPTION MECHANISM X92-4470-00 (DXM-6500W) X92-4470-01 (DXM-6501W) X92-4470-02 (DXM-6502W) X92-4470-03 (DXM-6503W) outer-chassis CONSTRUCTION OF MAJOR PARTS dumper (X4) floating spring (X4) disc guide assy damper bracket...
  • Page 2: Block Diagram

    X92-4470-0x BLOCK DIAGRAM Mother Board IC10 IC12 Pick-Up R-ch L-ch 1Chip IC A.GND A.GND A3.3 Reg Servo Processor IC11 A.GND RF Amp 8V SW A.+8V DRAM MP3 Decorder D.GND Vref D.GND D.GND SW5V D.GND Tr Coil /PON µ-Com Bu.+5V Fo Coil Clock Clock 16.93MHz...
  • Page 3: Microcomputer's Terminal Description

    X92-4470-0x MICROCOMPUTER’S TERMINAL DESCRIPTION MECHANISM MICROCOMPUTER (IC5 : X32) processing Name Purpose Processing operation description description in STBY Not use Low fixation 5V potential GND potential Not use Low fixation Power ON/OFF control H : ON L : OFF /PON Power ON/OFF control H : OFF L : ON High...
  • Page 4 X92-4470-0x MICROCOMPUTER’S TERMINAL DESCRIPTION processing Name Purpose Processing operation description description in STBY /HCSB Chip selection control H : OFF L : ON Chip selection control H : OFF L : ON DSP RESET DSP reset control H : normal L : reset data transmit request input Hi-Z DBBWRDY0...
  • Page 5: Operation Description

    X92-4470-0x OPERATION DESCRIPTION [1] Disc Loading Switch ON! Disc arm(L) Disc arm(R) (1) Turning the loading switch ON 1) When a disc is inserted, the disc arms open to the left and right and the claw below disc arm (L) sets the loading switch 2) The above starts the motor rotation.
  • Page 6 X92-4470-0x OPERATION DESCRIPTION (2) Basic construction (Initial position of the planetary gear mechanism) 1) Even after the disc has been inserted, the Slider (R) motor rotated and the gear train also rotated, slider (R) does not start operation yet.This Sun gear Locked is because the planetary gear mechanism Carrier gear's rib...
  • Page 7 X92-4470-0x OPERATION DESCRIPTION 3) Activating slider (R) When the carrier gear rotates, its wall (section C) pushes When the trigger slider moves along the longitudinal grooves and moves the trigger slider. on slider (R) till the ends of grooves, the trigger slider itself When the trigger slider is moved, slider (R) is pulled by the begins to push and move slider (R).
  • Page 8 X92-4470-0x OPERATION DESCRIPTION Force transmitted from the 3) Rotation of rollers during disc loading motor As shown in the following figure, the Roller Sun gear motor rotation force is transmitted Rotation direction for pulling the through sun gear helical gear 2 load disc in gear 2 to the gear that is coupled directly...
  • Page 9 X92-4470-0x OPERATION DESCRIPTION 2) Lowering the clamper (for disc chucking) Initial position Clamper Plate spring As slider (R) moves, the plate spring sec- Engaged condition Clamper chassis assy tion engaged with it moves along its Slider (R) groove and lowers the clamper chassis Center of rotation assembly.
  • Page 10 X92-4470-0x OPERATION DESCRIPTION Mechanism lock position (5) Floating position and lock position of the mechanism The shafts of the outer chassis are inserted into the grooves on the The disc is loaded and ejected by rotation of the rollers that sliders.
  • Page 11 X92-4470-0x OPERATION DESCRIPTION Outer-chassis Floating stroke (7) Floating stroke When the traverse chassis assembly is in the mechanism floating position, stoppers should be provided between the outer case and traverse chassis assembly in order to Traverse chassis assy prevent the mechanism from being dam- aged by vibrations and shocked of the ve- Restriction direction Restriction direction...
  • Page 12: Pc Board (Component Side View)

    PC BOARD (COMPONENT SIDE VIEW) X32-5220-0x (J74-1247-22) CP32 CP10 IC11 CP13 CP20 CP24 CP31 CP17 CP19 CP18 CP21 CP28 CP15 CP27 R101 X32-5220-0x IC Q Address IC Q Address Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 13 PC BOARD (FOIL SIDE VIEW) X32-5220-0x (J74-1247-22) CP8 CP11 CP22 CP12 IC10 R114 R116 DOUT IC13 12EJE /CLK DATA R119 R117 LE/LM LO/EJ- MOTOR /RST uGND X32-5220-0x IC Q Address IC Q Address IC Q Address Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 14 (X32-5220-0X) A3.3V LOADING & SLED MOTOR L.P.F. R114 R116 4700P R110 2.7K IC12 (2/2) R111 330P 2.7K R117 R115 IC12 (1/2) 3.3V AVR DRIVER A3.3V 330P 1500P 4.7K 4.7K SPINDLE MOTOR S7.5V S7.5V D.OUT SW5V SW5V 12EJE SW 4.7K 4.7K 12EJE SW BU5V BU5V...
  • Page 15 A3.3V A3.3V +2.5V +2.5V +3.3V +3.3V CP23 CP17 CP19 CP18 100K 100K 100K 100K 2.5V VDD2 +2.5V 3.3V +3.3V VDD3 HAD6 3.3V 3.3V HAD7 MCK48 HAD8 MCK44 HAD9 GND2 GND3 3.3V VDD3 +3.3V 3.3V AD10 HAD10 MCKO CP24 AD11 HAD11 3.3V BCKO AD12...
  • Page 16 +3.3V +3.3V +3.3V 1500P FCS+ TRK+ 1500P 1500P TRK- FCS- 1500P 360K CP32 3.3V 4.7K 1500P CP22 1.6V 3.3V D.GND TEST3 3.3V TEST2 TEST1 AD12 AB12 TEST0 AD11 AB11 3.3V +3.3V AD10 AB10 3.3V 3.3V CP11 IC10 ASTB ASTB 3.3V READ READ CD SIGNAL PROCESSOR...
  • Page 17: Exploded View

    X92-4470-0x EXPLODED VIEW DPU1 DFPC1 X32-522 φ : N09-4460-05 M1.7x8.5 : N09-4472-05 M1.7x2.5 : N09-6004-05 φ : N09-6006-05 2x3.5 : N09-6007-05 M2x2 φ : N09-6051-05 2x6(BLK) : N19-2163-04 1.6 WASHER : N39-2020-46 M2x2 Parts with the exploded numbers larger than 700 are not supplied.
  • Page 18: Parts List

    C90,91 CK73GB1C104K CHIP C 0.10UF C92,93 CC73GCH1H681J CHIP C 680PF C94,95 CC73GCH1H680J CHIP C 68PF RK73GB2A103J CHIP R J 1/10W A0 : X92-4470-00 (DXM-6500W) A1 : X92-4470-01 (DXM-6501W) Indicates safety critical components. A2 : X92-4470-02 (DXM-6502W) A3 : X92-4470-03 (DXM-6503W)
  • Page 19 ARM ASSY (CLAMP-ASSY) D10-4579-03 LEVER ASSY (ROLLER-ASSY) D10-4581-13 ARM (DISC-ARM-L) D10-4582-13 ARM (DISC-ARM-R) D10-4583-03 ARM (JOINT-ARM-L) D10-4584-03 ARM (JOINT-ARM-R) D10-4585-03 A0 : X92-4470-00 (DXM-6500W) A1 : X92-4470-01 (DXM-6501W) Indicates safety critical components. A2 : X92-4470-02 (DXM-6502W) A3 : X92-4470-03 (DXM-6503W)
  • Page 20: Specifications

    KENWOOD ELECTRONICS GULF FZE KENWOOD ELECTRONICS UK LIMITED P.O. Box 61318, Jebel Ali, Dubai, U.A.E. Kenwood House, Dwight Road, Watford, Herts, WD1 8EB, United Kingdom KENWOOD ELECTRONICS (THAILAND) CO., LTD. KENWOOD ELECTRONICS DEUTSCHLAND GMBH 2019 New Pechburi Road, Bangkapi, Huaykwang, Bangkok, 10320 Thailand Rembrücker-Str.

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