Sharp CD-BA3000 Service Manual
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Sharp CD-BA3000 Service Manual

Sharp CD-BA3000 Service Manual

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SPECIFICATIONS ............................................................................................................................................................. 2
NAMES OF PARTS ........................................................................................................................................................... 3
OPERATION MANUAL ...................................................................................................................................................... 5
DISASSEMBLY .................................................................................................................................................................. 6
REMOVING AND REINSTALLING THE MAIN PARTS ..................................................................................................... 9
ADJUSTMENT ................................................................................................................................................................. 10
BLOCK DIAGRAM ........................................................................................................................................................... 13
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD .............................................................................................. 16
VOLTAGE ........................................................................................................................................................................ 34
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 35
WAVEFORMS OF CD CIRCUIT ...................................................................................................................................... 36
TROUBLESHOOTING (CD SECTION) ........................................................................................................................... 37
FUNCTION TABLE OF IC ................................................................................................................................................ 41
FL DISPLAY ...................................................................................................................................................................... 47
REPLACEMENT PARTS LIST/EXPLODED VIEW
All manuals and user guides at all-guides.com
SERVICE MANUAL
CONTENTS
SHARP CORPORATION
MINI COMPONENT SYSTEM
CD-BA3000
MODEL
CD-BA3000 Mini Component System consisting of
CD-BA3000 (main unit), CP-BA3000 (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.
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
CD-BA3000
No. S5044CDBA3000
Page

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  • Page 1: Table Of Contents

    MINI COMPONENT SYSTEM CD-BA3000 MODEL CD-BA3000 Mini Component System consisting of CD-BA3000 (main unit), CP-BA3000 (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.

  • Page 2: Specifications

    All manuals and user guides at all-guides.com CD-BA3000 FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL. SPECIFICATIONS CD-BA3000 General Tuner section Power source: AC 120 V, 60 Hz Frequency range: FM; 87.5-108 MHz Power consumption: 210 W AM;...

  • Page 3: Names Of Parts

    All manuals and user guides at all-guides.com CD-BA3000 NAMES OF PARTS CD-BA3000 Front panel . (CD) Disc Tray . (CD) Disc Skip Button . (CD) Disc Number Select Buttons . (CD) Open/Close Button . Extra Bass Indicator . Spectrum Analyzer/Volume Level Indicator .
  • Page 4 All manuals and user guides at all-guides.com CD-BA3000 CD-BA3000 Rear panel . AC Power Lead . CD Digital Output Socket . FM/AM Loop Aerial Socket . Video/Auxiliary (Audio Signal) Input Sockets . Speaker Terminals Remote control . Remote Control Transmitter LED CD control section .

  • Page 5: Operation Manual

    All manuals and user guides at all-guides.com CD-BA3000 OPERATION MANUAL – 5 –...

  • Page 6: Disassembly

    All manuals and user guides at all-guides.com CD-BA3000 DISASSEMBLY CD-BA3000 Caution on Disassembly Follow the below-mentioned notes when disassembling (A1)x2 Top Cabinet the unit and reassembling it, to keep it safe and ensure ø3x12mm excellent performance: 1. Take cassette tape and compact disc out of the unit.
  • Page 7 All manuals and user guides at all-guides.com CD-BA3000 (K3)x1 Switch PWB Clamp Lever (H1)x1 (J2)x1 Display PWB (J1)x2 CD Player Unit ø3x10mm (Top View) (H3)x1 Volume Motor Ass'y (K2)x1 Cam Gear Rib Headphones (H2)x4 ø3x12mm Open Volume (K1)x5 Motor ø3x10mm...
  • Page 8 All manuals and user guides at all-guides.com CD-BA3000 (Q2) x3 Mechanism CD Player CD Servo Chassis (P2) x2 Loading (P1) x2 Motor (Q1) x1 (Q1) x1 (P2) x2 (R1) x5 Figure 8-1 Figure 8-2 CP-BA3000 STEP REMOVAL PROCEDURE FIGURE Front Panel 1.

  • Page 9: Removing And Reinstalling The Main Parts

    All manuals and user guides at all-guides.com CD-BA3000 REMOVING AND REINSTALLING THE MAIN PARTS TAPE MECHANISM SECTION TAPE 2 Perform steps 1 to 7 and 11 of the disassembly method to Record/Playback remove the tape mechanism. Head How to remove the record/playback and erase heads (TAPE 2) (See Fig.

  • Page 10: Adjustment

    All manuals and user guides at all-guides.com CD-BA3000 CD MECHANISM SECTION Loading Motor CD Player Perform steps 1, 2, 3, 12 and 15 of the disassembly method Chassis to remove the CD mechanism. How to remove the loading motor (A1)x1 (A1)x2 (See Fig.
  • Page 11 All manuals and user guides at all-guides.com CD-BA3000 • FM RF TUNER SECTION Signal generator: 1 kHz, 75 kHz dev., FM modulated fL: Low-range frequency fH: High-renge frequency Test Stage Frequency Frequency Setting/ Instrument Adjusting • AM IF/RF Display Connection...
  • Page 12 All manuals and user guides at all-guides.com CD-BA3000 TEST MODE ·Setting the test mode Any one of test mode can be set by pressing several keys as fallows. <X-BASS> + <CD> + <POWER> TEST:CD operation test Function:-CD test mode. -Enter test mode.

  • Page 13: Block Diagram

    All manuals and user guides at all-guides.com CD-BA3000 OPEN/ DISC CLAMP UP/DOWN CLOSE NUMBER MOTOR TO DIGITAL OUTPUT SECTION – TO MAIN SECTION TO DISPLAY SECTION CNS99 (TO IC601) CNS4 9 10 CNP4 45 46 47 48 32 31 30...
  • Page 14 All manuals and user guides at all-guides.com CD-BA3000 ZD351 FM IF CNP301 T302 CF303 IC301 BF301 TA7358AP B.P.F FM FRONT END CF351 X351 456kHz T351 CF352 AM IF AM MIX AM IF MO/ST FM RF L312 T301 IC303 FM OSC LA1832S FM IF DET./FM MPX./AM IF...
  • Page 15 All manuals and user guides at all-guides.com CD-BA3000 FL701 M701 MOTOR DISPLAY VOLUME 56 57 58 Q715 Q713 Q716 Q714 JOG701 Q701-Q703 Q710-Q712 RX701 REMOCON SENSOR 58 57 56 55 54 53 52 51 50 49 48 47 46 44 43 42 41 40 VLOAD SYS.

  • Page 16: Schematic Diagram / Wiring Side Of P.w.board

    All manuals and user guides at all-guides.com CD-BA3000 CD SERVO PWB-C Vref TIN1 FIN1 0.047 FIN2 TIN2 LA9235M SERVO AMP. 47/6.3 2.2/50 FIN1 100P ODRV 0.022 FIN2 RFSW 120K 6.8K AGCON TIN1 (CH) 47/10 0.01 TIN2 100/6.3 REF1 0.01 0.0047...
  • Page 17 All manuals and user guides at all-guides.com CD-BA3000 CD SIGNAL 100P 0.01 100P 100P 100P 100P 100P 100P 2.2mH 0.022 EFMO VDD5V 80 79 78 77 76 75 74 72 71 70 69 68 67 66 65 0.022 0.047 PDO1...
  • Page 18 All manuals and user guides at all-guides.com CD-BA3000 C604 0.022 C606 100/16 VREF C602 22/50 C608 10/5 INTERFACE ROUT LOUT C607 C609 R605 3.9K C610 RBASS LBASS RTRE C611 0.0027 C612 0.002 LTRE C620 1/50 C619 1/50 IC601 R607 LC75341...
  • Page 19 All manuals and user guides at all-guides.com CD-BA3000 MAIN PWB-A1(1/ 2) PLAYBACK SIGNAL CD SIGNAL RECORD SIGNAL VIDEO SIGNAL FM SIGNAL 22/50 R608 C614 10/50 R606 L-ch 3.9K R631 C631 R633 4.7K 390P JK601 VIDEO IN 0.0027 R634 R632 C632 4.7K...
  • Page 20 All manuals and user guides at all-guides.com CD-BA3000 DISPLAY PWB-A2 R713 R714 100K 100K R715 FL701 100K 52 51 42 41 32 31 29 20 RS724 RS723 R701 R704 R716 100K 100K 100K R719 C709 C715 82 83 84 85...
  • Page 21 All manuals and user guides at all-guides.com CD-BA3000 P17 12 - E TO CD SERVO PWB CNP12 32 31 29 20 2 3 4 5 7 8 9 CNS703 2 3 4 5 7 8 9 BI703 C722 R810 R812...
  • Page 22 All manuals and user guides at all-guides.com CD-BA3000 IC901 STK4113E POWER AMP. R901 C913 C911 220P Q903 D909 KTC31 1SS133 R903 R917 R905 D904 D903 0.1(3W) 1SS133 1SS133 R919 C912 C923 1.5K 220P 0.022(ML) Q901 KTC3199GR R921 D907 R911 4.7K...
  • Page 23 All manuals and user guides at all-guides.com CD-BA3000 POWER SUPPLY PWB-B1 FM SIGNAL SO901 SPEAKER RL901 TERMINAL L901 0.29µH L-CH Q903 D909 R925 KTC3199GR 1SS133 10(1/2W) SPEAKER C927 0.22 R929 6 OHMS R927 10(1/2W) C929 R-CH 0.22 R931 4.7(1/2W) M901...
  • Page 24 All manuals and user guides at all-guides.com CD-BA3000 AM TRACKING fL T303 C331 0.047 C330 C323 0.022 C338 0.001 AM ANT. C332 D301 0.022 1SS133 D302 1SS133 VD301 R358 AM OSC. SVC348S 3.9K C335 C301 560P T306 0.001 D303 1SS133...
  • Page 25 All manuals and user guides at all-guides.com CD-BA3000 FM SIGNAL AM SIGNAL C371 R361 1/50 1.2K R350 R358 2.7K 3.9K R362 C372 1.2K 1/50 C367 1/50 IC303 LA1832S FM IF DET./FM MPX./AM IF C358 1/50 R355 C357 3.3K 2.2/50 T351 C356 0.001...
  • Page 26 All manuals and user guides at all-guides.com CD-BA3000 MAIN PWB-A1 X352 R378 R388 C382 R359 2 3 4 5 7 8 9 R376 R360 IC302 C387 C395 C381 R379 22 21 20 R377 C392 C380 L351 R375 C394 R395 R864...
  • Page 27 All manuals and user guides at all-guides.com CD-BA3000 P29 12 - H TO DISPLAY PWB CNS701 FFC701 CNS11 P32 4 - A CNP11 TO CD SERVO CNP702 2 4 6 8 10 12 14 16 18 20 22 24 26 28...
  • Page 28 All manuals and user guides at all-guides.com CD-BA3000 FW701 LED715 SW713 RD11 FW701 FL701 Q713 Q703 E C B R716 E C B RS721 Q716 RS729 RS723 E C B R704 E C B BI704 RS724 Q702 R701 Q714 RS728...
  • Page 29 All manuals and user guides at all-guides.com CD-BA3000 SWITCH PWB-A5 LED713 LED714 RD09 RD12 SW709 SW712 CNS701 C715 D721 D705 SW701 3 2 1 POWER L701 R799 C733 R798 R766 3 2 1 R751 SW702 C730 CLOCK R726 C731 R742...
  • Page 30 All manuals and user guides at all-guides.com CD-BA3000 P27 7 - H POWER SUPPLY PWB-B1 TO MAIN PWB CNS901 CNP901 Q904 R923 1 2 3 4 5 6 7 8 9 10 11 12 13 1415 1617 18 Q905 R942...
  • Page 31 All manuals and user guides at all-guides.com CD-BA3000 P27 7 - H TO MAIN PWB CNS901 CNP901 1 2 3 4 5 6 7 8 9 10 11 12 13 1415 1617 18 D913 R961 R962 R950 C919 FW902 C920...
  • Page 32 All manuals and user guides at all-guides.com CD-BA3000 P27 9 - A P29 12 - D TO DISPLAY PWB TO MAIN PWB CNS11 CNS703 CD SERVO PWB-C CNP5 1 2 3 4 5 1 2 3 4 5 6 7 8 9 10...
  • Page 33 All manuals and user guides at all-guides.com CD-BA3000 TAPE MECHANISM ASSEMBLY P28 2 - H TO DISPLAY PWB CNS702 FFC702 TAPE MECHANISM PWB-E TAPE MOTOR SOLENOIDE SOLENOIDE TAPE 2 RECORD/PLAYBACK HEAD TAPE 1 PLAYBACK HEAD TAPE 2 ERACE HEAD CNP101...

  • Page 34: Voltage

    All manuals and user guides at all-guides.com CD-BA3000 VOLTAGE IC701 IC101 IC303 IC704 PIN VOLTAGE NO. VOLTAGE NO. VOLTAGE VOLTAGE NO. VOLTAGE NO. VOLTAGE NO. VOLTAGE 1.6V 0.7V 4.6V 4.9V 0V (0V) 2.1V (2.1V) 5.0V 1.6V 4.6V 0V (0V) 4.5V (4.8V) 1.6V...

  • Page 35: Notes On Schematic Diagram

    All manuals and user guides at all-guides.com CD-BA3000 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 36: Waveforms Of Cd Circuit

    All manuals and user guides at all-guides.com CD-BA3000 WAVEFORMS OF CD CIRCUIT Stopped Stopped 1999/04/05 17:33:17 CH1=500mV CH3=500mV 500ms/div CH1=500mV CH3=1V CH4=1V 500ms/div DC 10:1 DC 10:1 (500ms/div) DC 10:1 DC 10:1 DC 10:1 (500ms/div) NORM:20kS/s NORM:20kS/s PDO1 IC2 1...

  • Page 37: Troubleshooting (Cd Section)

    All manuals and user guides at all-guides.com CD-BA3000 TROUBLE SHOOTING When the CD does not function When the CD section does not operate when the objective lens of the optical pickup is dirty, this section may not operate. Clean the objective lens, and check the playback operation. When this section does not operate even after the above step is taken, check the following items.
  • Page 38 All manuals and user guides at all-guides.com CD-BA3000 (1) Focus-HF system check Stopped CH1=500mV CH3=500mV 500ms/div DC 10:1 DC 10:1 (500ms/div) Although a CD is inserted and the cover is closed, "NO NORM:20kS/s DISC" is displayed. IC2 24 Press the OPEN/CLOSE switch (SW1) without inserting a disc, and try starting the playback operation.
  • Page 39 All manuals and user guides at all-guides.com CD-BA3000 (2) Tracking system check Check the TE waveform at pin 18 on IC1. The tracking servo is not activated. If the waveform shown in Figure 39-1 appears and soon after Check the peripheral circuits at pins 18 and 19 on IC1, pin 23 on NO DISC appears.
  • Page 40 All manuals and user guides at all-guides.com CD-BA3000 (4) PLL system check Stopped 1999/04/05 17:33:17 CH1=500mV CH3=1V CH4=1V 500ms/div DC 10:1 DC 10:1 DC 10:1 (500ms/div) NORM:20kS/s When a disc is loaded, start play operation. PDO1 The HF waveform is normal, but the TOC data cannot be PDO2 read.

  • Page 41: Function Table Of Ic

    All manuals and user guides at all-guides.com CD-BA3000 FUNCTION TABLE OF IC IC1 VHiLA9235M/-1: Servo Amp. (LA9235M) ODRV FIN1 LA9235M RFSW FIN2 AGCON 28 RF- FIN3 FIN4 26 N/C 25 PH 24 BH REF1 ODRV 23 N/C PH/BH 22 RFEV...
  • Page 42 All manuals and user guides at all-guides.com CD-BA3000 IC2 VHiLC78641E-1: Servo/Signal Control (LC78641E) (1/2) Terminal Name Input/Output Setting in Reset Pin No. Function PDO1 Output – For PULL Phase-comparison output terminal for built-in VOC control. PDO2 Output – Phase-comparison output terminal for built-in VOC control.
  • Page 43 All manuals and user guides at all-guides.com CD-BA3000 IC2 VHiLC78641E-1: Servo/Signal Control (LC78641E) (2/2) Terminal Name Input/Output Setting in Reset Pin No. Function LVDD – – L channel Power terminal for L channel. LCHO Output 1/2VDD D/A converter L channel output terminal.
  • Page 44 All manuals and user guides at all-guides.com CD-BA3000 IC701 RH-iX0334AWZZ: System Microcomputer (IX0334AW) (1/2) Pin No. Port Name Terminal Name Input/Output Function — (+) POWER SUPPLY -20dBATT Output -20dB ATTENUATOR S-BUSY Output Not used LCK1 Output LED DRIVER LCK (BU2092-2)
  • Page 45 All manuals and user guides at all-guides.com CD-BA3000 IC701 RH-iX0334AWZZ: System Microcomputer (IX0334AW) (2/2) Pin No. Port Name Terminal Name Input/Output Function P120 T2 PLAY SW_B Input PLAY SWITCH FOR T2 P119 Input TAPE 2 A-SIDE FULL PROOF P118 Input...
  • Page 46 All manuals and user guides at all-guides.com CD-BA3000 IC601 VHiLC75341/-1: Audio Processor (LC75341) ROUT LOUT LBASS RBASS 0.1uF 0.1uF LTRE RTRE LSEL0 RSEL0 R1 R2 R3 R4 24 23 22 21 20 19 18 17 16 15 14 13 LC75341...

  • Page 47: Fl Display

    All manuals and user guides at all-guides.com CD-BA3000 FL701 VVKBJ744GNK-1: FL Display (1G~8G) PIN CONNECTION PIN NO. 20 19 18 17 16 15 14 13 12 11 10 CONNECTION 9G 8G 7G 6G 5G 4G 3G 2G NP NP F1 F1 F1 30 29 28 27 26 25 24 23 22 21 PIN NO.
  • Page 48 All manuals and user guides at all-guides.com CD-BA3000 –– MEMO –– – 48 –...
  • Page 49 “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 50 All manuals and user guides at all-guides.com CD-BA3000 PRICE PRICE DESCRIPTION PARTS CODE PARTS CODE DESCRIPTION RANK RANK D901,902 VHD1N4004S/-1 AB Silicon,1N4004S CD-BA3000 D903,904 VHD1SS133//-1 AA Silicon,1SS133 D905,906 VHD1N5402M/-1 AE Silicon,1N5402M INTEGRATED CIRCUITS D907~913 VHD1SS133//-1 AA Silicon,1SS133 LED709~712 VHPSLI325YC-1 AB LED,Yellow,SLI325YC VHILA9235M/-1 AQ Servo Amp.,LA9235M...
  • Page 51 All manuals and user guides at all-guides.com CD-BA3000 PRICE PRICE PARTS CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK AC 10 µF,16V,Electrolytic VCCCTV1HH680J AA 68 pF (CH),50V C364 VCEAZA1CW106M J AA 0.0015 µF,50V AA 0.022 µF,16V VCKYTV1HB152K C365 VCTYPA1CX223K AA 0.022 µF,25V AA 0.001 µF,50V...
  • Page 52 All manuals and user guides at all-guides.com CD-BA3000 PRICE PRICE DESCRIPTION PARTS CODE PARTS CODE DESCRIPTION RANK RANK AG 3300 µF,25V,Electrolytic C850 VCEAZW1EW338M J R117,118 VRD-MN2BD102J AA 1 kohm,1/8W AB 22 µF,25V,Electrolytic C851 VCEAZA1EW226M J R119,120 VRD-ST2CD560J AA 56 ohms,1/6W AB 0.047 µF,50V,Mylar...
  • Page 53 All manuals and user guides at all-guides.com CD-BA3000 PRICE PRICE PARTS CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK R581 VRD-MN2BD683J AA 68 kohms,1/8W R853 VRD-ST2CD223J AA 22 kohms,1/6W R582 VRD-MN2BD123J AA 12 kohms,1/8W R854 VRD-ST2CD103J AA 10 kohm,1/6W R583 VRD-MN2BD683J...
  • Page 54 All manuals and user guides at all-guides.com CD-BA3000 PRICE PRICE DESCRIPTION PARTS CODE PARTS CODE DESCRIPTION RANK RANK BI4/CNS4 QCNWN1572AWZZ J AF Connector Ass’y,6/6Pin SW729 92LSWICHT1663T J AC Switch,Push Type [STOP] BI11/CNS11 QCNWN1540AWZZ J AF Connector Ass’y,5/5Pin SW731 92LSWICHT1663T J...
  • Page 55 All manuals and user guides at all-guides.com CD-BA3000 PRICE PRICE PARTS CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK ACCESSORIES/PACKING PARTS LHLDZ1230AWZZ AC Holder,LED MLOKC0003AWZZ J AD Lock Lever,Tape Mechanism, Tape 1 QANTL0007AWZZ J AK AM/FM Loop Antenna MLOKC0004AWZZ J AD Lock Lever,Tape Mechanism, SPAKA0255AWZZ J Packing Add.,Left/Right...
  • Page 56 All manuals and user guides at all-guides.com CD-BA3000 CD-BA3000 306-2 306-1 306-3 703x2 305x2 PWB-D Figure 7 CD MECHANISM EXPLODED VIEW – 56 – – 7 –...
  • Page 57 All manuals and user guides at all-guides.com CD-BA3000 BELT CONNECTION CD-BA3000 TAPE 2 Motor FF/REW 614x2 Motor Roller 202-1 Ass'y PWB-A1 TAPE 1 Flywheel Ass'y TAPE 1 FF/REW TAPE 2 Flywheel Roller Ass'y Ass'y Main Belt 610x2 608x11 608x3 PWB-A4...
  • Page 58 All manuals and user guides at all-guides.com CD-BA3000 604x2 CD-BA3000 604x2 MECHANISM PWB-F 250x4 239x4 204-2 204-1 PWB-C Figure 9 CABINET EXPLODED VIEW (2/2) – 58 – – 9 –...
  • Page 59 All manuals and user guides at all-guides.com CD-BA3000 CP-BA3000 Cement Film Resistor Capacitor 911x2 Polyswitch SP5,6 911x4 SP3,4 913x4 905x4 910x4 912x4 SP1,2 Tweeter Super Tweeter SP3 (L-ch) SP5 (L-ch) SP4 (R-ch) SP6 (R-ch) Super Tweeter Speaker SP5 (L-ch) Terminal...
  • Page 60 All manuals and user guides at all-guides.com CD-BA3000 © COPYRIGHT 2000 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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