Sharp CD-M4000W Service Manual
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DIGITAL AUDIO
SAFETY PRECAUTION FOR SERVICE MANUAL ...........................................................................................................
VOLTAGE SELECTION .....................................................................................................................................................
AC POWER SUPPLY CORD AND AC PLUG ADAPTOR .................................................................................................
SPECIFICATIONS .......... . .................................................................................................................................................
NAMES OF PARTS ...........................................................................................................................................................
OPERATION MANUAL.. ...... AL.. ... - .. ...................................................................................................................................
DISASSEMBLY.. ................... .............................................................................................................................................
REMOVING AND REINSTALLING THE MAIN PARTS.. .................................................................................................
ADJUSTMENT .................................................................................................................................................................
BLOCK DIAGRAM ...........................................................................................................................................................
SCHEMATIC DIAGRAM/WIRING SIDE OF P.W.BOARD.. ........................................................................................... .20
VOLTAGE ............ ............................................................................................................................................................
NOTES ON SCHEMATIC DIAGRAM ..............................................................................................................................
TYPES OF TRANSISTOR AND LED.. ..............................................................................................................................
WAVEFORMS OF CD CIRCUIT.. ....................................................................................................................................
................................................................. .:. ............................................................................
FL DISPLAY.. ....................................................................................................................................................................
REPLACEMENT PARTS LIST/EXPLODED VIEW
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.
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Summary of Contents for Sharp CD-M4000W

  • Page 1: Table Of Contents

    CD-M4000W/CP-M4000 sr-uUH= SERVICE MANUAL No. S9156CDM4000W MINI COMPONENT SYSTEM CD-M4000W MODEL SPEAKER SYSTEM CP-M4000 MODEL DIGITAL AUDIO 9 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: Safety Precaution For Service Manual

    Cd-M4000W/CP-M4000 SAFETY PRECAUTION FOR SERVICE MANUAL WARNINGS THE AEL (ACCESSIBLE EMISSION LEVEL) OF THE LASER POWER OUTPUT IS LESS THAN CLASS 1 BUT THE LASER COMPONENT IS CAPABLE OF EMITTING RADIATION EXCEEDING THE LIMIT FOR CLASS 1. THEREFORE IT IS IMPORTANTTHATTHE FOLLOWING PRECAUTIONS ARE OBSERVED DURING SERVICING TO PROTECT YOUR EYES AGAINST EXPOSURE TO THE LASER BEAM.
  • Page 3: Ac Power Supply Cord And Ac Plug Adaptor

    CD-M4000W/CP-M4000 AC POWER SUPPLY CORD AND AC PLUG ADAPTOR QACCA0003AWOO QACCL0005AWOO BzjggK G-Dj QACCE0008AWOO QPLGA0004AWZZ QPLGA0003AWZZ FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL. SPECIFICATIONS Tuner Frequency range FM: 88 - 108 MHz...
  • Page 4 CD-M4000W/CP-M4000 Front panel 1. Disc Tray P.Timer Set Indicator 3.On/Stand-by Button 4. Tape 2 Cassette Compartment 5. Tape 1 Cassette Compartment 6. Equalizer Mode Select Button 7. Volume Control 8. Monster Bass/Demo Mode Button (with Indicator) 9. Disc Tray Open/Close Button lO.Disc Number Select Buttons (with indicator)
  • Page 5 CD-M4000W/CP-M4000 Rear panel 1. FM 75 Ohms Aerial Terminal 2. FM Aerial Earth Terminal 3. AM Loop Aerial Socket 4. Span Selector Switch S.Video/Auxiliary (Audio Signal) input Sockets 6. Speaker Terminals 7. AC Power Lead 8. AC Voltage Selector Remote control 1.
  • Page 6: Operation Manual

    Cd-M4000W/CP-M4000 Speaker system 1. Tweeter 2. Super Tweeter 3. Midrange 4. Woofer 5. Bass Reflex Due 6. Speaker Terminals OPERATION MANUAL System Connections Setting the AC voltage selector the FM/AM span selector Setting Check the setting of the AC voltage selector located an the rear panel before plug- ging the unit into a wall so&et.
  • Page 7: Setting The Clock

    CD-M4000W/CP-M4000 Setting the Clock 4 Press the TUNlNGfrlME (v or A) button to adjust the hour and then press the MEMORY/SET button. . Press the TUNlNG,TlME (v or A) button once to advance the time by 1 hour. Hold it down to advance contnuousiy.
  • Page 8: Troubleshooting Chart

    If something is wrong with this product, check the following before calling your autho- Symptom Possible cause rn?d SHARP dealer or service centre. . Cannot record. . Is the erase-prevent,on tab removed? . f?. it a normal tape? (You cannot record on General .
  • Page 9: Disassembly

    CD-M4000W/CP-M4000 DISASSEMBLY Caution on Disassembly Follow the below-mentioned notes when disassembling Top Cabinet the unit and reassembling it, to keep it safe and ensure excellent performance: 1. Take cassette tape and compact disc out of the unit. 2. Be sure to remove the power supply plug from the wall outlet before starting to disassemble the unit.
  • Page 10 CD--M4000W/CP-M4000 Clamp Lever CD Player Unit (Top View) Cam Gear Rib Figure 10-l (E3) x1-y b Figure 1 O-4 urntable Figure 1 O-2 Figure 10-5 (Nl) x 3 (Push iPush 1 Figure 10-6 Figure 1 O-3...
  • Page 11 CD-M4000W/CP-M4000 Mechanism Figure 1 l-l Figure 11-2 &moxAss! Net ..... . . 2. Catching Holder ..(A2) x4 Front Panel, 3.
  • Page 12: Removing And Reinstalling The Main Parts

    CD-M4000W/CP-M4000 REMOVING AND REINSTALLING .THE MAIN TART;S TAPE MECHANISM SECTION TAPE 2 Perform steps 1 to 7 and 9 of the disassembly method to remove the tape mechanism. How to remove the record/playback and erase heads (TAPE 2) (See Fig. 12-I) 1.
  • Page 13: Adjustment

    CD-M4000W/CP-M4000 CD MECHANISM SECTION CD Loading Motor Perform steps 1, 2, 3, 12, 13, 14 and 15 of the disassembly method to remove the CD mechanism. How to remove the CD loading motor (See Fig. 13-1) 1. Bend the hooks (Al) x 5 PCS., to remove the CD loading motor.
  • Page 14: Tuner Section

    CD-M4000W/CP-M4000 . FM RF TUNER SECTION Signal generator: 1 kHz, 40 kHz dev., FM modulated fL: Low-range frequency fH: High-range frequency Test Stage Frequency Frequency Setting/ Instrument Display Adjusting Connection AM IF/RF Point Signal generator: 400 Hz, 30%, AM modulated FM Band - ‘...
  • Page 15 CD-M4000W/CP-M4000 TEST M,ODE Setting the test mode Any one of test mode can be set by pressing several keys as follows. <X-BASS> + <CD> + <POWER> TEST:CD operation test Function:-CD test mode. -Enter test mode. ’ IL isn’ t done OPEN/CLOSE operation is using manual.
  • Page 16 CDh/l4000W/CP-M4000 Standard Specification of Stereo System Error Message Display Contents Error Contents Display Notes Output while Device Protection Operation ‘ PROTECT 00: While in Protect Circuit Operate 01: Over Current Detection 02: DC Detection TAPE Mechanism Error ‘ E R-TA**’ 00: Tape Mechanism Error 01: Initial Error CDIVCD...
  • Page 17 CD-M4000W/CP-M4000 TO DISPLAY SECTION 61 CE 62 CL 63 DI 64 DO 65 wmo VRES LC78645E CD SERVO CONSTANT VOLTAGE PICKUF Figure 17 BLOCK DIAGRAM (i/3) -17-...
  • Page 18: Block Diagram

    AM LOOP ANTENNA 4.5MHZ x352 ICKl I - - I M65656SP MIC AMP. JK601 VIDEO/AUX IC601 P-7CO” , CNSll FROM CD SERVOSIS~TION L-CH F&BACK R-CH & SWITCt REC, MOTOR DRIVER BIAS Figure 18 BLOCK DIAGRAM (2/3) -18-...
  • Page 19 CD-M4000W/CP-M4000 FL701 FL DISPLAY JOG701 RX701 SW701 -SW703 sw709-SW717 SW722-SW734 IC701 (l/2) _ _ _. IXO46OAW S Y S T E M M I C R O C O M P U T E R -“ --El‘ 1 / I ‘ “ &...
  • Page 20 CD-M4000W/CP-M4000 .---e---w SER” O PWB-C r-----~----~--. PICKUP-UNIT-z--l )) CD SIGNAL ]VCC VREF *“1 EC LASER DRIVER ^ . _ 11 1 L--------I I I III’ I,/ / 1111 I PUIN I...Fk=L-w I I// NOTES ON SCHEMATIC DIAGRAM can be found on page 39.
  • Page 21 CD-M4000W/CP-M4000 I I WRQ, $ [ DRF, 9 CE=@ DoI @ CNPT ASDFIN c51 I ASDACK 0.022 T R-CH, , ASLRCK AGND 1 GMOUT L-CH _ EFLG DGND- y- 2TtNi E -II- - ’ C78645E ’ hrrs\Ih 3.01 +5v _ 6 f53trwu CNP;...
  • Page 22 CDrM4000W/CP-M4000 IC601 LC75341 AUDIO PROCESSOR NOTES ON SCHEMATIC DIAGRAM can be found on page 39. Figure 22 SCHEMATIC DIAGRAM (3/l 0) - 22 -...
  • Page 23 CD-M4000W/CP-M4000 __-------- ~__-_--_------_-__-_----_- / MAIN PWB-~(l/z) ( I) FM SIGNAL w PLAYBACK SIGNAL > RECORD SIGNAL N CD SIGNAL DD VIDEO SIGNAL -_---_-_-_-_-_ CNPGD1 ---I Figure 23 SCHEMATIC DIAGRAM (4/l 0) -23-...
  • Page 24 CDiM4000W/CP-M4000 NSPLAY PWB-Bl MICRC IC704 KIA4558P OPE AMP. NOTES ON SCHEMATIC DIAGRAM can be found on page 39. Figure 24 SCHEMATIC DIAGRAM (5/l 0) - 24 -...
  • Page 25 CD-M4000W/CP-M4000 I I I i” i i ,“ / >K INPUTiOUTPUTEXPANDER Figure 25 SCHEMATIC DIAGRAM (6/l 0) - 25 -...
  • Page 26 CD;M4000W/CP-M4000 .-_-__-------__-__-__ ----P-F_- POWER AMP I POWER PWB-Di Ad I_-_-_ -------_. NOTES ON SCHEMATIC DIAGRAM can be found on page 39. Figure 26 SCHEMATIC DIAGRAM (7/10) - 26 -...
  • Page 27 CD-M4000W/CP-M4000 .---- .--_-____------- * FM SIGNAL R-CH =wJ SC&m SPEAKER GND TERMINAL -------_-- --------- -_--___--------- I Figure 27 SCHEMATIC DIAGRAM (8/10) -27-...
  • Page 28 CD-*iil4000W/CP-M4000 so301 FM ANTENNA TERMINAL -----_-_ ,-P-P--_-_ ------- MAIN PWB-A (2/2) r- c314 D305,DS1SSW 0.0047 ---I? c315 0.0047 ^^.” ^^^^ FM FRONT END 22P R309 (WI iOK CF303 FM SIGNAL _ ., R316 (fS AM SIGNAL IC302 LC72131 PLL(TUNER‘ IC303 LA1 8328 FM IF DET./FM MPX./AM IF NOTES ON SCHEMATIC DIAGRAM can be found on page 39.
  • Page 29 CD-M4000W/CP-M4000 MIC PW@-H / bD MIC SIGNAL ---.--~--~-‘ ----------------------------------- NOTES ON SCHEMATIC DIAGRAM can be found on page 39. Figure 29 SCHEMATIC DIAGRAM (IO/lo) MAIN PWB P30 6-A Figure 29 WIRING SIDE OF P.dmLOARD (l/9) -29-...
  • Page 30 TO MIC PWB TO CD SERVO PWB P29 12-G P36 5-A 2 3 4 5 6 7 8 9 1 0 -I>I>I>T> >3o3fl3:a3fl r FM 75 OHM! so301 FM ANTENNA TERMINAL L- GND AM LOOP ANTENNA SPAN SELECTOR R606 g 9 kHdf i0 kHz r - - - L- 10 kHd’...
  • Page 31 CD-M4000W/CP-M4000 TO DISPLAY PWB P33 11-A 3122 R156 -IF+ ,--------------------------------I R158 R146 ‘ *‘ -4’ 42 E33R132 ‘ u&L..- TV” - C14Om -jtC124 + R142B -ii-C136 t--.-. mR126 R124 lcllt CNS102 m .). -___ -___ EERlO5 EElR?o6 -II-c154 IP37 11-F/...
  • Page 32 DISPLAY PWB-Bl P34 3-G tflcs713 S7025 ’ CNP702 ,-------2 ‘ q%702 J&q MONSTER BASS PWB-B3 TO TAPE f-,Bl704 MEC@;‘ SM i31k ------_---- ------ -----------_-----_- Figure 32 WIRING SIDE OF P.W.BOARD (4/9) - 32 -...
  • Page 33 CD-M4000W/CP-M4000 TO MAIN PWB P31 9-A j5Fzi-j FC701 1 IIII,IIIIIII1,/,,,,,,,/ 2, ---------n701---R~27e .------------------ R728= : ., _‘ t ‘ L-: 1 L--J LED722 -, ., .r7,-v, I\-b-r-b STAND-BY LL6ciccrra rilY” rn R76483 Fi768m R763ttJ %! R789m R765ffl 788EE[ “ k & II I .-I .A...
  • Page 34 CD-M4000W/CP-M4000 TRANSFORMER PWB-D3 1 AC POWER SUPPLY CORD AC I 1 Oil 27/220/ V.50160 230-240 COLOR TABLE 1 VIOLET I T801 : POWER , TRANSFORMER HEADPHONES PWB-B2 -----1 c~q!.--~ JK670 HEADPHONES ; ----- fk5-J Figure 34 WIRING SIDE OF P.W.BOARD (6/g)
  • Page 35 CD-M4000W/CP-M4000 MD01 CNS904 FAN MOTOR 0908~---+--- - ,mw, P3, 7-H CNS903 8’ Bl903 -i-- --i- D913 R949 C946 Fl950+ T--- c952 R943e 1234 CNS902 Figure 35 WIRING SIDE OF P.W.BOARD (7/9) -35-...
  • Page 36 $D-M4000W/CP-M4000 P30 4-A P32 1-B FROM MAIN PWB FROM DISPLAY PWB / CD SERVO PWB-C / CNSBA / PICKUP UNIT(306) j CNSBB CNSlA CNSll CNS: CNS2A The numbers @ to @ are waveform numbers shown in page 40 Figure 36 WIRING SIDE OF P.W.BOARD (8/9) - 36 -...
  • Page 37 CD-M4000W/CP-M4000 TAPE MECHANISM PWB-F SOLENOID SOLENOID jTAPdlJ PLAYBACK HEAD ITAPE2/ RECORDIPLAYBACWERASE HEAD P31 12-D FROM MAIN PWB P31 12-F TO MAIN PWB CD LOADING MOTOR PWB-E Figure 37 WIRING SIDE OF P.W.BOARD (9/9) -37-...
  • Page 38: Voltage

    CD-iVi4000W/CP-M4000 VOLTAGE...
  • Page 39: Notes On Schematic Diagram

    CD-M4000W/CP-M4000 NOTES ON SCHEMATIC DIAGRAM 9 The indicated voltage in each section is the one measured Resistor: 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 40: Waveforms Of Cd Circuit

    CD-M4000W//CP-M4000 WAVEFORMS OF CD CIRCUIT Q ICl@ Q Cl@ Q ICI@ Q lCl@ Q Cl @ CH4 : cum” Hold’ on : 0.2 ps @ ICl @I . ..~...~...,~,IIII.,.l.l..~...I..,.,.,,,,,,.,.,, @ Cl @ @ ICl @...
  • Page 41: Troubleshooting

    CD-M4000W/CP-M4000 TROUBLESHOOTING 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 42 CD-M4000W//CP-M4000 ‘ ,‘ . : :.(I) ,Focus-HF system.check. Although a CD is inserted and the cover is closed, “NO DISC” is displayed. Press the OPEN/CLOSE switch (SWl) without inserting a disc, and try starting the playback operation. Figure 42-1 1. Does the pickup move to the PICKUP-IN Switch (SW4) No Sled motor (MZ).
  • Page 43 CD-M4000W/CP-M4000 The tracking servo is not activated. If the waveform shown in Figure 43-1 appears and soon after NO DISC appears ? Check the peripheral circuits at pins 14, 15 and 20 on IC1, and CNSl A/B. “ Initialization” is possible, but play is not possible ? A normal jump operation cannot be completed or the beginning of the track cannot be found.
  • Page 44 CD-iu14000W//CP-M4000 When a disc is loaded, start play operation. The HF waveform is normal, but the TOC data cannot be read. Check the PDO waveform. (Figure 44-l) 0.W” 0.W” Check around pins 73-78 on ICl. Figure 44-1 The HF waveform is normal and the time is displayed normally, but no sound is produced.
  • Page 45: Function Table Of Ic

    CD-M4000W/CP-M4000 FUNCTION TABLE OF IC ICl VHiLC78645E-1: Servo (LC78645E) (l/2) For slice level FIN2 Input B+D signal input terminal. TIN1 Input E signal input terminal. Input F signal input terminal. TIN2 VREF output RFVDD/2 VREF voltage output terminal. REFI Input Reference supply setting terminal.
  • Page 46 CD-M4000W//CP-M4000 lC1 1 VHiLC78645E-1: CD Servo (LC78645E) (2/2) enera purpose lnpu output terminal 7. set it as the input terminal and open 1 LDD Output / ~~ - In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
  • Page 47 CD-M4000W/CP-M4000 ICl VHiLC78645E-1: CD Servo (LC78645E) E. 2 8 F58Ed8 60 79 78 77 76 75 74 73 72 a DATA 3 DATACK EFMIN 3 z? LRSY RFVDD RFVSS FIN1 FIN2 TIN1 TIN2 LC78645E VREF REFI RFMON JITTC ADAVDD ADAVSS CORRECTION A”Dl O CD...
  • Page 48 CDhIl4000W//CP-M4000 IC7pl RH-iX0460AWZZ: System Microcomputer (llX0460AW) (i/2) j P31 / DRF Input CD RF level detection. Input CD DSP write request. CD CE output CD DSP CE output. output CE output. output Clock output. output Data output. Input Data input. AVSS AVSS Analog ground.
  • Page 49 CD-M4000W/CP-M4000 IC701 RI+iX0460AWZZ: System Microcomputer (IX0460AW) (2/2) Input 1 Mic switch. j Pl15 MIC SW P114 1 Output 1 LED driver Ick. / LCKO I PI13 1 DISTOUT 1 Output 1 D e s t i n a t i o n o u t p u t .
  • Page 50 CD;M4000W//CP-M4000 IC6pl VHiLC75341bl: Audio Processor (LC75341) + - - * LOUT 4 1 ROUT ’ LBASS g RBASS 0.1 UF O.luF LTRE g RTRE g RlN 3 RSELO...
  • Page 51 CD-M4000W/CP-M4000 ICKl VHjM65856SF1: Mic Amp. (M65856SP) (l/2) Input Microphone SW L: MIC OFF, H: MIC ON MIC SW Clock Control. MCLKCONT Controls built-in clock generation circuit with external R. ALC operating voltage setting terminal. VALC To set ALC operating voltage according to applied voltage.
  • Page 52 Cd-M4000W//CP-M4000 Et<1 VHiM65856SP-1: Mic Amp. (M65856SP) (2/2) Port Name Pin No. Input/Output Function KEYCONIN Input Monaural input for external KEYCONTROL IC. Input/Output interface terminal for external KEYCONTROL IC. Monaural input for external KEYCONTROL IC. 34’ SOURCEOUT output Input/Output interface terminal for external KEYCONTROL IC.
  • Page 53: Fl Display

    CD-M4000W/CP-M4000 FL DISPLAY FL701 VVKBJll LM02Ti : FL Display 6’...
  • Page 54: Cd-M4000W

    CD-M4000W/CP-M4000 S H A R P COPYRIGHT @ 2001 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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