Sharp CD-C462 Service Manual
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Sharp CD-C462 Service Manual

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Illustration: CD-C462/C462C
Manufactured under license from Dolby Laboratories Licens-
ing Corporation. DOLBY, the double-D symbol
"PRO LOGIC" are trademarks of Dolby Laboratories Licens-
ing Corporation.
IMPORTANT SERVICE NOTES (For U.S.A. Only) .......................................................................................................... 2
SPECIFICATIONS ............................................................................................................................................................. 2
NAMES OF PARTS .......................................................................................................................................................... 3
QUICK GUIDE .................................................................................................................................................................. 5
DISASSEMBLY ................................................................................................................................................................. 6
NOTES ON SCHEMATIC DIAGRAM ............................................................................................................................... 9
WAVEFORMS OF CD CIRCUIT ..................................................................................................................................... 10
BLOCK DIAGRAM .......................................................................................................................................................... 11
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD ............................................................................................. 14
REPLACEMENT PARTS LIST/EXPLODED VIEW
SERVICE MANUAL
and
CONTENTS

SHARP CORPORATION

- 1 -
CD-C462/C462C
CP-C462, CENTER(GBOXS0006AWM4)
and REAR(GBOXS0007AWM4), Constitute CD-C462/C462C.
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
This Service Manual is for the CD-C462/462C, which is a minor-
modification model of the CD-C472. This manual, therefore, describes
only the changed points from the service manual. Please refer to the
CD-C472 service manual (No. S2812CDC472//) together with this
manual.
CD-C472
OPERATION MANUAL .................................................... 5
ADJUSTMENT ............................................................... 12
FUNCTION TABLE OF IC .............................................. 38
FL DISPLAY ................................................................... 44
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
CD-C462/C462C
No. S3818CDC462//
Page
Page

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Summary of Contents for Sharp CD-C462

  • Page 1: Table Of Contents

    Illustration: CD-C462/C462C This Service Manual is for the CD-C462/462C, which is a minor- modification model of the CD-C472. This manual, therefore, describes only the changed points from the service manual. Please refer to the CD-C472 service manual (No.

  • Page 2: Operation Manual

    CD-C462/C462C FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL. IMPORTANT SERVICE NOTES (For U.S.A.Only) BEFORE RETURNING THE AUDIO PRODUCT (Fire & Shock Hazard) Before returning the audio product to the user, perform the following safety checks.

  • Page 3: Names Of Parts

    CD-C462/C462C NAMES OF PARTS CD-C462/C462C Front Panel 1. Disc Tray 2. Disc Number Selector Buttons 3. Disc Skip Button 4. Open/Close Button: 5. Disc Number Indicator 6. Timer Indicator 7. Record Indicator 6 7 8 8. Sleep Indicator 9. Extra Bass Indicator: X-BASS...
  • Page 4 CD-C462/C462C Speaker Section Front Speaker Left speaker Right speaker CP-C462 1. Super Tweeter 2. Tweeter 3. Woofer 4. Bass Reflex Duct 5. Speaker Wire Center Speaker GBOXS0006AWM4 6. Full Range Speaker 7. Speaker Wire Rear Speaker GBOXS0007AWM4 8. Full Range Speaker 9.

  • Page 5: Quick Guide

    CD-C462/C462C Quick-Guide MINI COMPONENT SYSTEM Guía rápida CD-C462 Turning the power on Remote control Preparation for use and off Control remoto Preparación para su uso Conexión y desconex- ión de la alimentación Remote Sensor Sensor remote FM Antenna AM Loop Antenna...

  • Page 6: Disassembly

    CD-C462/C462C DISASSEMBLY CD-C462/C462C Caution on Disassembly Follow the below-mentioned notes when disassembling the unit and reassembling it, to keep it safe and ensure excellent performance: ( A1 ) x2 Top Cabinet 1. Take cassette tape and compact disc out of the unit.
  • Page 7 CD-C462/C462C ( K1 ) x1 ø3 x10mm Front Panel ( E4 ) x1 ( K2 ) x1 Washer ( E2 ) x2 Turntable ( E3 ) x1 Push Power Amp. Tape Mechanism Push CD Player Base ( L1 ) x1 ø3 x10mm...
  • Page 8 CD-C462/C462C CP-C462 CP-C462 STEP REMOVAL PROCEDURE FIGURE Front Speaker 1. Net ......(A1) x1 2. Baffle Board ... (A2) x1 Tweeter 3. Screw ..... (A3) x2 Baffle Board 4. Screw ..... (A4) x4 5. Screw ..... (A5) x2 ( A2 ) x1...

  • Page 9: Notes On Schematic Diagram

    CD-C462/C462C NOTES ON SCHEMATIC DIAGRAM • The indicated voltage in each section is the one measured • Resistor: by Digital Multimeter between such a section and the chas- To differentiate the units of resistors, such symbol as K and sis with no signal given.

  • Page 10: Removing And Reinstalling The Main Parts

    CD-C462/C462C WAVEFORMS OF CD CIRCUIT STOP PLAY FOCUS SERCH 0.5ms 0.50 V 10.0 V IC1 20 F.E 0.5ms 10.0 V 0.5ms 5.0 V 0.50 V IC1 54 DRF 0.5ms 1.00 V PLAY 0.5ms NORMAL DISC 1.00 V TN0=01 20ms 1.00 V 0.5ms...

  • Page 11: Block Diagram

    CD-C462/C462C Figure 11 BLOCK DIAGRAM (1/3) – 11 –...

  • Page 12: Adjustment

    CD-C462/C462C FM&AM LOOP ANT FM IF FM BPF IC301 VR351 MPX VCO ADJ FM FRONT END AM IF BF301 T301 CF301 TA7358AP T351 T352 FM IF IN FM DET MO/ST AM MIX AM IF FM+B FM DET FM/AM IF L302...
  • Page 13 CD-C462/C462C UNSWITCH FL701 DISPLAY MEMORY BACK UP MONO/ST 31 32 TO CD SECTION TO CD SECTION Q701 TO POWER SECTION PHM1 FM/AM SWITCHING Q343 SW701 AVDD SW730 IC701 AVREF IX0192AW XL701 SYSTEM CONTROL 4.19MHz MICROCOMPUTER TO CD SECTION VOLTAGE EGURATER...

  • Page 14: Schematic Diagram / Wiring Side Of P.w.board

    CD-C462/C462C 0.01 KTA1266 GR 1.5V 4.8V 0.01 4.2V + – 2.4V FIN2 + – + – 2.4V FIN1 2.5V EFBAL – + – – 2.5V FOSTA 2.5V + – DGND TOSTA 2.5V 2.4V – 2FREQ + – 0.1/50 CNP1 2.4V LASER 0.033...
  • Page 15 CD-C462/C462C R57 1K R61 1K R62 1K R63 1K 0.01 64 63 62 59 58 57 55 54 53 52 51 50 EFLG 2.2V SUB-CODE SBSY U-COM INTERFACE DEF1 XVSS 2.1V X-TAL 3.3M XOUT 2.2V GENERATOR 2KX8 0.047 VVSS XVDD 4.8V...
  • Page 16 CD-C462/C462C P22 6-D TO TUNER & DECK SECTION 11 12 16 17 13 14 CNS11 M_12V 7.3V D_GND L-CH A_GND R-CH BI601 FW601 TAPE REC TAPE BIAS R518 T1/T2 R519 HP_SW A_GND C549 100P C550 100P –VP C551 100P R522...
  • Page 17 CD-C462/C462C MAIN PWB-A1(1/2) FM SIGNAL PLAYBACK SIGNAL RECORD SIGNAL CD SIGNAL JK601 R601 L-CH R603 C647 1.8K 390P VIDEO_1 R604 C648 1.8K 390P R-CH R602 C660 2.2/50 C659 2.2/50 R616 R615 2.7K 2.7K R614 R613 C661 1/50 C646 0.022 C662...
  • Page 18 CD-C462/C462C DISPLAY FL701 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 24.2V 4.2V 24.2V R788 1 2 3 4 5 6 7 8 9...
  • Page 19 CD-C462/C462C CNS12 BI702 RWC(DSP) WRQ(DSP) CO IN(DSP) SQ OUT(DSP) CQ CK(DSP) RES(DSP) DRF(ASP) CNP12 D_GND TO CD SERVO PWB SLD+ P15 7-G SLD– PUIN SW OPEN/CLOSE R798 DISC NO. UP/DOWN SWITCH PWB-A3 RD05 RD06 RD07 RD08 RD01 RD02 RD03 RD04 3.9K...
  • Page 20 CD-C462/C462C 2 Ch IC901 STK40704 POWER AMP. R921 C923 C915 C904 C916 C911 R912 10/50 100/50 C912 C907 100/50 10/50 R913 C901 R905 1/50 C903 H:ON R907 C935 1/50 L:OFF Q902 (ML) 30.6V 30.7V KRC107 M R934 R914 3.8V Q901...
  • Page 21 CD-C462/C462C FM SIGNAL R969 (1/2W) C978 47/50 D903 6.4V M901 1SS133 C923 FAN MOTOR R968 R967 F901 5A 250V F902 5A 250V H:ON C935 C937 L:OFF Q902 (ML) (ML) KRC107 M R934 R937 3.8V SO901 SPEAKER TERMINAL Q903 0.3V C944...
  • Page 22 CD-C462/C462C MAIN PWB-A1(2/2) AM LOOP ANT FM ANT CNP301 IC301 BAND PASS TA7358AP AM ANT FILTER R321 FM FRONT END 1 2 3 4 5 6 7 8 9 BF301 C337 1 2 3 TP302 10/50 R306 C319 C314 0.022...
  • Page 23 CD-C462/C462C IC302 IC601 IC501 IC701 PIN VOLTAGE NO. VOLTAGE NO. VOLTAGE NO. VOLTAGE NO. VOLTAGE NO. VOLTAGE NO. VOLTAGE VOLTAGE 2.4V 2.5V 4.7V –24V 2.7V 2.4V 2.5V 4.7V –24V 2.5V 4.9V 4.7V –24V 2.5V 2.5V 0.2V 4.8V 4.7V –24V 4.2V 2.4V...
  • Page 24 CD-C462/C462C DISPLAY PWB-A2 JK701 HEADPHONE MAIN SW721 SW722 SW723 SW724 Q703 TUNER/BAND TAPE VIDEO/AUX B C E C731 C730 ZD710 1 2 3 R791 R790 R792 SW716 TUNING DOWN SW718 CLOCK C722 SW717 POWER R781 R737 SW715 SWITCH 1 2 3...
  • Page 25 CD-C462/C462C FM ANTENNA AM LOOP ANTENNA 1 2 3 SUB EOOFER OUT MAIN PWB-A1 1 2 3 CHASSIS CNP301 C695 C395 BF301 T302 R465 1 2 3 JK451 JK601 D303 D302 C462 L302 L303 1 2 3 4 5 6 7 8...
  • Page 26 CD-C462/C462C SWM3 F. P. CNSM1 CNPM1 TO DISPLAY PWB FWM2 P24 5-D FWM1 PHM1 SWM4 CNPM2 F. A. S SOLM1 TAPE MECHANISM SOLENOID (254-8) PWB-D SWM5 TAPE 2 TAPE MOTOR(254-7) TAPE 1 RECORD/PLAYBACK ERASE HEAD(254-5) PLAYBACK HEAD(254-6) HEAD(254-6) POWER PWB-B...
  • Page 27 CD-C462/C462C CNS5 MECHA UP DISC NUMBER SENSOR PWB-F OPEN/CLOSE T/T UP/DOWN LOADING CNS10 SOLENOID SOLM2 CD MOTOR PWB-E SLIDE MOTOR PICK UP IN M901 FAN MOTOR CNS3A CNS3B CNS804 DISC MOTOR PICKUP UNIT(306) CNS1A CNS1B CNS2A CNS2B CD SERVO PWB-C...
  • Page 28 CD-C462/C462C IC3 VHiM56748FP-1: Focus/Tracking/Spin/Slide Driver (M56748FP) Vref-in Stand Vref-in Standby Vref-out SS.GND Vref-out Standby Gain1 Gain4 Gain1 Gain4 Vctl1(–) Vctl4(–) VM1(–) VM4(–) VM1(–) VM4(–) VM1(+) VM4(+) VM1(+) VM4(+) VM2(+) VM3(+) VM2(+) VM3(+) VM2(–) VM3(–) VM2(–) VM3(–) Vctl2(–) Vctl3(out) Vctl3(out) Gain2 Vctl3(–)

  • Page 29: Parts Guide

    “HOW TO ORDER REPLACEMENT PARTS” To have your order filled promptly and correctly, please furnish the For U.S.A. only following information. Contact your nearest SHARP Parts Distributor to order. 1. MODEL NUMBER 2. REF. No. 3. PART NO. 4. DESCRIPTION For location of SHARP Parts Distributor, Please call Toll-Free;...
  • Page 30 CD-C462 PRICE PRICE PART CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK INTEGRATED CIRCUITS ZD351 VHEMTZJ5R1B-1 AC Zener,5.1V,MTZJ5.1B ZD701 VHEMTZJ3R3B-1 AA Zener,3.3V,MTZJ3R3B VHILA9241M/-1 AS Servo Amp.,LA9241M ZD710 VHEMTZJ5R6B-1 AD Zener,5.6V,MTZJ5.6B ZD801 VHEMTZJ6R2A-1 AA Zener,6.2V,MTZJ6.2A VHILC78623D-1 AY Servo/Signal Control,LC78623D ZD802 VHEMTZJ300B-1 AB Zener,30V,MTZJ300B...
  • Page 31 CD-C462 PRICE PRICE DESCRIPTION DESCRIPTION PART CODE PARTS CODE RANK RANK VCTYMN1EF223Z AA 0.022 µF,25V C459 VCEAZA1HW106M J 10 µF,50V,Electrolytic C51,52 VCEAZA1CW107M J 100 µF,16V,Electrolytic C460 VCEAZA1EW476M J 47 µF,25V,Electrolytic C461 VCKZPA1HF223Z AA 0.022 µF,50V VCTYMN1EF223Z AA 0.022 µF,25V VCKYBT1HB102K AA 0.001 µF,50V...
  • Page 32 CD-C462 PRICE PRICE PART CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK C705 VCKYMN1HB102K J AA 0.001 µF,50V VRD-MN2BD152J AA 1.5 kohms,1/8W C706 VCTYMN1CY103N J AA 0.01 µF,16V VRD-MN2BD823J AA 82 kohms,1/8W C707 VCEAZA1HW335M J 3.3 µF,50V,Electrolytic VRD-MN2BD393J AA 39 kohms,1/8W...
  • Page 33 CD-C462 PRICE PRICE DESCRIPTION DESCRIPTION PART CODE PARTS CODE RANK RANK R317 VRD-ST2EE821J AA 820 ohms,1/4W R693,694 VRD-ST2CD470J AA 47 ohms,1/6W R320 VRD-ST2CD103J AA 10 kohm,1/6W R695,696 VRD-ST2CD104J AA 100 kohm,1/6W R697,698 VRD-ST2CD223J AA 22 kohms,1/6W R321 VRD-MN2BD121J AA 120 ohms,1/8W...

  • Page 34: Troubleshooting (Cd Changer Control / Cd Section)

    CD-C462 PRICE PRICE PART CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK R912,913 VRG-ST2EC101J AB 100 ohm,1/4W,Fusible CNS804 QCNWN1200AWZZ J AD Connector Ass’y,2Pin R914 VRD-ST2CD153J AA 15 kohms,1/6W F802~804 92LFUSE-T402D AD Fuse,4A/125V R915 VRD-ST2CD224J AA 220 kohms,1/6W F805 92LFUSE-T162-D AD Fuse,1.6A/250V...
  • Page 35 CD-C462 PRICE PRICE PART CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK QSW-F9001AW01 Switch,Leaf Type [Pickup In] 254- 2 NBLTK0012AWZZ AB Belt,Main [Tape2] 254- 3 NBLTK0030AWZZ AC Belt,Sub CABINET PARTS 254- 4 NROLY0002AWZZ J AF Pinch Roller Ass’y 254- 5 RHEDA0001AWZZ J...
  • Page 36 Speaker 92L720TPC46200 Packing Add.,Top,Front Speaker RRMCG0093AWSA J AR Remote Control,with Polyethylene Bag 92LLID1782A AQ Battery Lid,Remote Control ACCESSORIES(FOR CD-C462 U.S.A. ONLY) QACCD0010AW00 J AR AC Power Cord QANTL0004AWZZ J AG FM/AM Loop Antenna TINSE0206AWZZ AE Operation Manual TINSZ0313AWZZ AB Quick Guide...
  • Page 37 CD-C462/C462C CD-C462/C462C 306-2 306-1 306-3 305x2 PWB-E Figure 8 CD MECHANISM EXPLODED VIEW – 8 – – 9 –...

  • Page 38: Function Table Of Ic

    CD-C462/C462C CD-C462/C462C 249-1 604x2 619x11 PWB-A1 619x2 249-2 615x10 PWB-A2 615x3 PWB-A3 244-2 M901 244-6 FL701 244-4 244-1 608x2 244-5 244-9 244-7 244-3 615x5 244-8 244-14 244-12 244-13 (254-1,254-2, 254-3,254-4, 617x2 254-5,254-6, 254-7,254-8) 244-11 244-10 TAPE MECHANISM 617x2 Silicon 618x2...
  • Page 39 CD-C462/C462C CD-C462/C462C 257-3 257-2 614x2 257-1 251-2 614x2 251-1 251-3 236x2 MECHANISM 609x2 612x4 PWB-C PWB-F SOLM2 Figure 10 CABINET EXPLODED VIEW (2/2) – 11 – – 10 –...
  • Page 40 CD-C462/C462C CP-C462 SUPER TWEETER TWEETER SP3 (L-CH) SP5 (L-CH) SP4 (R-CH) SP6 (R-CH) BLACK Capacitor YELOW (SP5,6) BLACK WOOFER 907x2 SP1 (L-CH) SP2 (R-CH) 903x2 Capacitor 903x2 SP3,4 907x2 SP1,2 906x4 SUPER TWEETER SP5 (L-CH) SP6 (R-CH) TWEETER SP3 (L-CH)
  • Page 41 CD-C462/C462C Figure 12 SPEAKER EXPLODED VIEW (4/4) – 13 – – 12 –...

  • Page 42: Packing Of The Set (For U.s.a. Only)

    CD-C462/C462C PACKING OFF THE SET (For U.S.A. Only) Setting position of switches and knobs Tape Mechanism STOP Unit SPAKP0013AWZZ1 SPAKA0192AWZZ Polyethylene Bag Packing Add.,(Left/Right) BUTTON SIDE Remote Control FM/AM Loop Antenna Quik Guide Operation Manual AC Power Cord 92LBAG1460C1 Polyethylene Bag,...
  • Page 43 CD-C462/C462C MEMO – 14 – – 15 –...

  • Page 44: Fl Display

    CD-C462/C462C © COPYRIGHT 1998 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.

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