Sharp CD-E88 Service Manual
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Sharp CD-E88 Service Manual

Sharp CD-E88 Service Manual

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This Service Manual is for the CD-E88, which is a minor-
modification model of the CD-E700/CD-E77, This manual,
(No. S1301CDE700//) together with this manual.
IMPORTANT SERVICE NOTES (FOR U.S.A. ONLY) ....................................................................................................... 2
SPECIFICATIONS ............................................................................................................................................................. 3
NAMES OF PARTS ........................................................................................................................................................... 4
DISASSEMBLY .................................................................................................................................................................. 6
BLOCK DIAGRAM ............................................................................................................................................................. 9
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD ............................................................................................. 12
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 29
TYPES OF TRANSISTOR AND LED ............................................................................................................................... 29
VOLTAGE ........................................................................................................................................................................ 30
WAVEFORMS OF CD CIRCUIT ...................................................................................................................................... 31
FL DISPLAY ..................................................................................................................................................................... 32
REPLACEMENT PARTS LIST/EXPLODED VIEW
SERVICE MANUAL
CONTENTS
SHARP CORPORATION
MINI COMPONENT SYSTEM
MODEL
CD-E88 Mini Component System consisting of CD-E88
(main unit) and CP-E88 (speaker system).
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
CD-E700/CD-E77
ADJUSTMENT .......................................................................... 10
TROUBLESHOOTING .............................................................. 37
FUNCTION TABLE OF IC ........................................................ 41
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
CD-E88
No. S3318CDE88///
CD-E88
Page
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  • Page 1: Table Of Contents

    • 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-E88, which is a minor- CD-E700/CD-E77 modification model of the CD-E700/CD-E77, This manual,...

  • Page 2: Important Service Notes (For U.s.a. Only)

    CD-E88 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. 1. Inspect all lead dress to make certain that leads are not...

  • Page 3: Specifications

    CD-E88 FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL. SPECIFICATIONS CD-E88 (For U.S.A.) CD-E88 (For Canada) General General Power source AC 120 V, 60 Hz Power source AC 120 V, 60 Hz...

  • Page 4: Names Of Parts

    CD-E88 NAMES OF PARTS CD-E88 Front panel 1. Disc Tray 2. Timer Set Indicator 3. Memory/Set Button 4. Power On/Stand-by Button 5. Clock Button 6. Timer/Sleep Button 7. Tuning and Time Up Button 8. Tuning and Time Down Button 9. Headphone Jack 10.
  • Page 5 CD-E88 CD-E88 Remote control 1. Remote Control Transmitter 2. Disc Number Select Buttons 3. Program Clear Button 4. CD Memory Button 5. CD Track Down or Fast Reverse, Tape 2 Rewind Button 6. CD Pause Button 7. CD or Tape Stop Button 8.

  • Page 6: Disassembly

    CD-E88 DISASSEMBLY CD-E88 Caution on Disassembly Follow the below-mentioned notes when disassembling Top Cabinet the unit and reassembling it, to keep it safe and ensure Front excellent performance: (A1)x2 Panel ø3x12mm 1. Take cassette tape and compact disc out of the unit.
  • Page 7 CD-E88 (E2)x2 (L1)x3 Loading Tray (E3)x1 (E1)x1 ø3x6mm (F3)x1 Front (E2)x1 Panel (F2)x1 (E4)x1 Power PWB Transformer Headphones (L1)x3 Main PWB (F2)x1 Figure 7-4 (F1)x1 ø3x10mm (M1)x2 Figure 7-1 ø3x10mm (G3)x1 Loading Tray Front Panel CD Servo (G1)x1 Display PWB (G2)x10 ø3x10mm...
  • Page 8 CD-E88 CP-E88 REMOVAL PROCEDURE FIGURE STEP Passive Radiator 1. Screw ...... (A1) x4 Super Tweeter 2. Side Panel ....(A2) x1 3. Screw ...... (A3) x4 Speaker Box Woofer 1. Front Panel ..... (B1) x1 (D1)x2 2. Screw ...... (B2) x4 ø3x12mm...

  • Page 9: Therefore, Describes Only The Changed Points From The Service Removing And Reinstalling The Main Parts

    CD-E88 CNS601 TO DISPLAY SECTION TO MAIN SECTION VWRQ VRES LC78646E CD SERVO XOUT CONT 5 SLDO SPDO 28 27 VCC2 +3.3V LA6574H FOCUS/TRACKING/ SPIN/SLED DRIVER CONSTANT VOLTAGE 9 10 11 SPINDLE MOTOR PICKUP SLED MOTOR Figure 9 BLOCK DIAGRAM (1/3)

  • Page 10: Manual. Please Refer To The Cd-E700/Cd-E77, Service Manual Adjustment

    CD-E88 IC303 IC301 LA1832S TA7358AP FM IF DET./ AM LOOP FM FRONT END FM MPX./AM IF ANTENNA ANTENNA FM IF 10.7 MHz T302 CF303 BF301 CF351 X351 450 kHz 456 kHz B.P.F T351 CF352 AM IF FM L312 AM MIX...
  • Page 11 CD-E88 FL701 FL DISPLAY RX701 REMOTE SENSOR LED703, DRIVER LED704 IC701 Q710 VLOAD IX0553AW SYSTEM AVDD MICROCOMPUTER SW701-SW707 SW711-SW718 SW721-SW724 +B PROTECT 1 2 4 5 41 11 12 15 16 1 7 20 21 22 23 24 TO CD...

  • Page 12: Schematic Diagram / Wiring Side Of P.w.board

    CD-E88 CNS601 BI601 R-CH FM SIGNAL A_GND R601 PLAYBACK SIGNAL L-CH R602 CD_GND RECORD SIGNAL CD_+B CD SIGNAL IC601 D_GND C653 C601 LC75341 220P 220/16 LD+7V VIDEO SIGNAL AUDIO PROCESSOR LD+7V C609 R605 CNP5 1/50 A_5V C603 CD SERVO R613...
  • Page 13 CD-E88 MAIN PWB-A1(1/3) R693 C602 C653 C601 0.022 220/16 220P L-CH C691 R691 JK690 390P 6.8K VIDEO/ AUX IN R690 C690 6.8K 390P R603 R-CH R692 C603 22/50 VREF C610 1/50 ROUT C608 R606 R604 0.12 3.9K CHASSIS RBASS C606...
  • Page 14 CD-E88 C302 0.001 AM TRACKING C331 C330 0.047 C323 0.022 (UJ) C332 0.022 C338 0.001 T303 D301 DS1SS133 AM ANTENNA C342 D302 DS1SS133 0.022 VD301 T306 SVC348S C335 AM OSC. 560P R358 (HB) 3.9K C334 AM BAND (CH) COVERAGE fL...
  • Page 15 CD-E88 MAIN PWB-A1 (2/3) C342 C373 TP302 .022 0.015 C371 1/50 R350 2.7K R358 C367 3.9K 1/50 C372 1/50 10 11 R352 R353 R355 T351 C357 3.3K 2.2/50 AM IF C356 0.001 R393 L352 C389 0.001 ZD351 100 µH DZ5.1BSB...
  • Page 16 CD-E88 IC901 STK41243 – POWER AMP. L902 C913 3µH 100P C907 R903 100P Q903 KTC3199 GR R917 0.1(3W) ZD902 ZD903 R918 DZ12BSB DZ12BSB C917 1.5K 0.01(ML) C916 C918 R905 100/50 100/50 R925 R926 R910 R919 D906 1.5K 1.5K 1.8K DS1SS133...
  • Page 17 CD-E88 MAIN PWB-A1 (3/3) FM SIGNAL L902 3µH CNS971 99 GR R942 560(2W) M901 R943 560(2W) – FAN MOTOR FAN MOTOR R944 R945 DRIVER 1.5K 1.5K L1_OUT D912 R949 DS1SS133 HEADPHONES R1_OUT PWB-A3 C931 R950 R947 10/50 RL914 WTM901 FW901 CNP705 M_+13.5V...
  • Page 18 CD-E88 FL701 LED A PWB-A4 FL DISPLAY LED DRIVER BI703 +10V Q710 R794 KRC102 M 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10...
  • Page 19 CD-E88 DISPLAY PWB-A2 8 17 16 15 14 13 12 11 10 9 R795 C701 1/50 C702 220/10 7 88 89 90 91 92 93 94 95 96 97 R763 –20dBATT DSA_STB R702 T-BIAS R703 T_T1/T2 R704 REC/PLAY R705 CD RESOUT...
  • Page 20 CD-E88 CD SERVO PWB-C CD SIGNAL PICKUP UNIT HPC1LX VREF VREF 1.2K 8.2K 8.2K 0.047(ML) 80 79 78 77 76 75 74 47/25 8.2K SLCO CNP1 SLCIST EFMIN 0.001 RFVDD 0.022 0.0027 RSVSS 47/25 FIN1 A FIN2 B 22P(CH) TIN1 E...
  • Page 21 CD-E88 CD RES 100P 100P 100P 100P FROM DISPLAY PWB 0.022 P19 12-D CNS701 4.7K CLAMP SW O/C_SW 2.2K 1.2K 2.2K DISC NO CNP6 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 SLCO...
  • Page 22 CD-E88 COLOR TABLE MAIN PWB-A1 BROWN R374 C302 RD(R) R378 R373 X352 R372 ORANGE R388 C382 R359 YELLOW IC302 R376 C395 R379 C381 C387 GREEN R360 BLUE C392 L351 R377 C394 C380 VIOLET R395 R381 GRAY TP301 WH(W) WHITE R382...
  • Page 23 CD-E88 TO CD SERVO PWB TO DISPLAY PWB P26 4-A P29 12-D CNP5 CNP701A FFC701 R136 P27 10-F CNS601 1 2 3 4 5 6 7 8 R138 R134 FROM R122 R158 TAPE1 PLAYBACK HEAD C130 C120 C132 C134 C127...
  • Page 24 CD-E88 DISPLAY PWB-A2 LED B PWB-A5 SW722 RX701 EQUALIZER SW721 X-BASS/DEMO RD19 RD20 CNS704 R763 FL701 R702 C701 C702 CNP704 XL701 R705 R708 CNS701 C721 C704 R709 C705 R710 RD10 R769 R713 R716 JOG701 SW712 JOG VOLUME R714 TUNER R756...
  • Page 25 CD-E88 LED A PWB-A4 BI703 CNS703 CNP703 IC701 R746 R751 R747 R735 R770 SW701 R772 R734 3 2 1 R758 POWER R731 R749 R764 Q710 R732 R730 R729 SW711 R711 R727 R761 R712 C720 R726 R713 R722 SW707 FFC701 R716...
  • Page 26 CD-E88 FROM DISPLAY PWB FROM MAIN PWB P24 1-D P23 8-A CNS701 CNS601 CD SERVO PWB-C 12 11 CNP5 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 CNP6 10 20...
  • Page 27 CD-E88 P24 3-F TAPE MECHANISM TO DISPLAY PWB ASSEMBLY CNP702 TAPE MECHANISM PWB-F FFC702 SOLENOID SOLENOID TAPE MOTOR TAPE 2 TAPE 1 RECORD/PLAYBACK ERASE HEAD PLAYBACK HEAD HEAD CD LOADING MOTOR PWB-E OPEN/CLOSE T/T UP/DOWN LOADING MOTOR 7 6 5 4 3 2 1...
  • Page 28 CD-E88 POWER PWB-B1 FROM MAIN PWB FROM DISPLAY PWB P23 12-G P24 1-D CNS801 FW701 R841 IC854 D853 CNP802 3 2 1 D801 D856 R844 COLOR TABLE 10 9 8 7 6 5 4 3 2 1 BROWN C810 C842...

  • Page 29: Notes On Schematic Diagram

    CD-E88 NOTES ON SCHEMATIC DIAGRAM • Resistor: • The indicated voltage in each section is the one measured To differentiate the units of resistors, such symbol as K and by Digital Multimeter between such a section and the chas- M are used: the symbol K means 1000 ohm and the symbol sis with no signal given.

  • Page 30: Voltage

    CD-E88 VOLTAGE IC101 IC601 IC701 PIN NO. VOLTAGE PIN NO. VOLTAGE PIN NO. VOLTAGE PIN NO. VOLTAGE PIN NO. VOLTAGE PIN NO. VOLTAGE 7.59 V 1.6 V 4.85 V 1.0 V 4.78 V 4.93 V 0.56 V 1.6 V N.C.

  • Page 31: Waveforms Of Cd Circuit

    CD-E88 WAVEFORMS OF CD CIRCUIT Stopped Stopped 1999/04/07 09:51:15 CH1=500 mV CH3=500 mV 500 ms/div CH1=200 mV CH2=500 mV 500 ms/div DC 10:1 DC 10:1 (500 ms/div) DC 10:1 DC 10:1 (500 ms/div) NORM:20 kS/s NORM:20 kS/s IC1 21 IC1 21...

  • Page 32: Fl Display

    CD-E88 FL DISPLAY FL701 VVKNA09SS29-1 GRID ASSIGNMENT X-BASS REC ST SLEEP TP TI PTYIPTY MHz TA MEMORY h j k (1G~8G) ANODE CONNECTION X-BASS PTYI MEMORY PRO LOGIC SLEEP – 32 –...
  • Page 33 CD-E88 PARTS GUIDE MINI COMPONENT SYSTEM CD-E88 MODEL CD-E88 Mini Component System consisting of CD-E88 (main unit) and CP-E88 (speaker system). “HOW TO ORDER REPLACEMENT PARTS” To have your order filled promptly and correctly, please furnish the For U.S.A. only following information.
  • Page 34 CD-E88 PRICE PRICE PART CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK TRANSFORMERS CD-E88 1 PT801 RTRNP0473AWZZ J BF Power,Main INTEGRATED CIRCUITS 1 PT841 RTRNP0483AWZZ J Power,Sub T301 RCILB0065AWZZ AC OSC.,FM VHILC78646E-1 AY CD Servo,LC78646E T302 RCILI0017AWZZ AB FM IF VHILA6574H+-1...
  • Page 35 CD-E88 PRICE PRICE DESCRIPTION DESCRIPTION PART CODE PARTS CODE RANK RANK AA 0.022 µF,16V AB 1 µF,50V,Electrolytic C127,128 VCTYPA1CX223K C613,614 VCEAZA1HW105M J AA 0.0033 µF,16V AB 4.7 µF,50V,Electrolytic C129,130 VCTYMN1CX332K J C615,616 VCEAZA1HW475M J AB 47 µF,25V,Electrolytic AB 1 µF,50V,Electrolytic...
  • Page 36 CD-E88 PRICE PRICE PART CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK R26,27 VRD-MN2BD103J AA 10 kohm,1/8W R601~603 VRD-ST2CD102J AA 1 kohm,1/6W R28,29 VRD-ST2CD222J AA 2.2 kohms,1/6W R604 VRD-ST2CD103J AA 10 kohm,1/6W VRD-ST2CD472J AA 4.7 kohms,1/6W R605 VRD-MN2BD103J AA 10 kohm,1/8W...

  • Page 37: Troubleshooting

    CD-E88 PRICE PRICE DESCRIPTION DESCRIPTION PART CODE PARTS CODE RANK RANK R910 VRD-MN2BD102J AA 1 kohm,1/8W JK701 QJAKM0004AWZZ J AK Jack,Headphones R911 VRD-ST2CD563J AA 56 kohms,1/6W JOG701 QSW-Z0015AWZZ J AF Switch,Rotary Type 1 R912 VRG-ST2EC101J AB 100 ohm,1/4W,Fusible [Jog Volume]...
  • Page 38 CD-E88 PRICE PRICE PART CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK 92LCAB3839BASY J AN Side Panel Ass’y,Left XJBSD20P05000 AA Screw,ø2×5mm XHBSD40P08000 AA Screw,ø4×8mm 202- 1 ———— –– Side Panel,Left XBBSD20P04000 AA Screw,ø2×4mm (Not Replacement Item) LX-JZ0010AFFD AA Screw,ø3×10mm 202- 2...
  • Page 39 CD-E88 CD-E88 306-2 306-1 306-3 703x2 305x2 PWB-D Figure 6 CD MECHANISM EXPLODED VIEW – 6 –...
  • Page 40 CD-E88 CD-E88 PWB-A1 BELT CONNECTION 601x2 202-1 FF/REW Tape FF/REW ROLLER Motor ROLLER ASS'Y ASS'Y 621x2 FLYWHEEL FLYWHEEL ASS'Y ASS'Y MAIN BELT TAPE2 TAPE1 614x3 IC851 IC852 Silicon 601x10 IC853 Grease 601x2 615x3 601x3 IC901 202-2 Silicon PWB-F Grease 208-3...

  • Page 41: Function Table Of Ic

    CD-E88 CD-E88 602x2 MECHANISM 602x2 PWB-E PWB-C Figure 8 CABINET EXPLODED VIEW (2/2) – 8 –...
  • Page 42 CD-E88 CP-E88 SP5, 6 SUPER TWEETER SP7, SUPER TWEETER SP5, SP3, 4 TWEETER SUPER TWEETER C1,C2 SP3, C1,C2 SP7, 8 Capacitor TWEETER Capacitor SUPER TWEETER 1.8µF, 1.8µF, 250V (N.P.) 250V (N.P.) SP1, SP5,6 WOOFER 906x2 SP3,4 SP1, 2 WOOFER 906x2...

  • Page 43: Packing Of The Set (For U.s.a. Only)

    CD-E88 PACKING OF THE SET (FOR U.S.A. ONLY) Setting position of switches and knobs Tape Mechanism STOP SPEAKER CP-E88 UNIT CD-E88 SPAKP0032AWZZ SSAKH0053AWZZ Polyethylene Bag,Unit Polyethylene Bag, Speaker SPAKA0431AWZZ Packing Add., Left/Right S I D S I D FRONT SPAKA0416AWZZ Packing Add.,Top/Bottom...
  • Page 44 CD-E88 © COPYRIGHT 2003 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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