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Sharp CD-MPS777H Service Manual

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See also: Operating Manual
CHAPTER 1. GENERAL DESCRIPTION
[1]
Specifications ................................................ 1-1
[2]
Names of parts .............................................. 1-2
[1]
Mechanism section........................................ 2-1
[2]
Tuner section................................................. 2-1
[3]
CD section..................................................... 2-1
[4]
TEST MODE ................................................. 2-2
[5]
CD section..................................................... 2-4
[6]
CD Changer mechanism section................... 2-5
CHAPTER 3. MECHANISM BLOCKS
[1]
Caution on diassembly .................................. 3-1
[2]
CHAPTER 4. DIAGRAMS
[1]
Block diagrams.............................................. 4-1
Parts marked with "
" are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for
maintaining the safety and performance of the set.
SERVICE MANUAL
MODEL
(main unit) and CP-MPS777H (speaker system).
CONTENTS

SHARP CORPORATION

No. S4416CDMP777H
MINI COMPONENT SYSTEM
CD-MPS777H
In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
[1]
Notes on schematic diagram ................. . ....... 5-1
[2]
Types of transistor and LED................... . ....... 5-1
[3]
Waveforms of CD circuit ........................ . ....... 5-2
[4]
Voltage ................................................... . ....... 5-3
[1]
Schematic diagram ................................ . ....... 6-1
[2]
Wiring side of PWB ................................ . ......6-11
CHAPTER 7. FLOWCHART
[1]
Troubleshooting ..................................... . ....... 7-1
[1]
Function table of IC................................ . ....... 8-1
[2]
FL Display .............................................. . ..... 8-10
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
CD-MPS777H

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  • Page 1: Table Of Contents

    MINI COMPONENT SYSTEM CD-MPS777H MODEL CD-MPS777H Mini Component System consisting of CD-MPS777H (main unit) and CP-MPS777H (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: Cd-Mps777H

    CD-MPS777H <Standard>—← SAFETY PRECAUTION FOR SERVICE MANUAL Precaution to be taken when replacing and servicing the Laser Pickup. The AEL (Accessible Emission Level) of Laser Power Output for this model is specified to be lower than Class 1 Requirements. However, the following precautions must be observed during servicing to protect your eyes against exposure to the Laser beam.

  • Page 3: Specifications

    CD-MPS777H Audio CD-MPS777H Service Manual CD-MPS777H Market CHAPTER 1. GENERAL DESCRIPTION [1] Specifications FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL. CD-MPS777H General Tuner Power source AC 230 V, 50 Hz Frequency range FM: 87.5 - 108.0 MHz...

  • Page 4: Names Of Parts

    CD-MPS777H [2] Names of parts CD-MPS777H Front panel 1. Disc Trays 2. Timer Indicator 3. RDS ASPM (Auto Station Programme Memory) Button 4. On/Stand-by Button 5. RDS Programme Type/ Traffic Information Search Button 6. RDS Display Mode Select Button 7. Disc Track Up or Fast Forward, Tape 2 Fast Forward, Tuner Preset Up, Time Up Button 8.
  • Page 5 CD-MPS777H CD-MPS777H Remote control 1. Remote Control Transmitter 2. Disc Number Select Buttons 3. Clock/Timer Button 4. Character Input/Disc Direct Search Buttons 5. MP3 Disc Navigation Mode Select Button 6. Enter Button 7. Memory/Set Button 8. Tape 2 Record Pause Button 9.

  • Page 6: Chapter 2. Adjustments

    CD-MPS777H Audio CD-MPS777H Service Manual CD-MPS777H Market CHAPTER 2. ADJUSTMENTS • FM IF Notes: 1. Description of the "FM IF Adjustment" is not carried on this Man- [1] Mechanism section ual. It is because the IF coil in the FM front end section has been •...

  • Page 7: Test Mode

    CD-MPS777H [4] TEST MODE • Setting the test mode During stand-by mode, press ON/STAND-BY button while pressing down the button and X-BASS/DEMO button. then, press the CD button to enter the test mode. T E S T IL isn’t done OPEN/CLOSE operation is using manual.
  • Page 8 CD-MPS777H <<MEMORY>> key input. Laser ON. <<MEMORY>> key input. Tracking OFF play at that specific point. <<MEMORY>> key input. Tracking ON play from that specific point. <<MEMORY>> key input. Adjustment result automatically will display as below for each 2 sec : a) "FOF_XXXX"...

  • Page 9: Cd Section

    CD-MPS777H [5] CD section CD Error code description Error Explanation When Pickup set inner position, inner switch cannot detect 'ON' level for 10 secs. CAM error. Can't detect CAM switch when CAM is moving. When it detect cam operation error during initialize pro- cess.

  • Page 10: Cd Changer Mechanism Section

    CD-MPS777H [6] CD Changer mechanism section • A number in the drawing sheet is the number of the parts guide (CHANGER MECHANISM PARTS). HALF GEAR MUST ARRANGE AS SHOWN 2 – 5...
  • Page 11 CD-MPS777H APPLY SANKOL BEFORE FIX FIX ITEM 1 ACCORDING TO THE SHOWN PICTURE ABOVE ROTATE MODE BIG GEAR UNTIL REACH AS SHOWN IN PICTURE 2 – 6...
  • Page 12 CD-MPS777H APPLY GREASE PULL THE LEVER UNITIL REACH THE ARROW MARK 2 – 7...
  • Page 13 CD-MPS777H FIGURE 2 FIGURE 1 APPLY GREASE SLOT CLAMP SW ARM INSIDE BASE SLOT 2 – 8...
  • Page 14 CD-MPS777H APPLY GREASE AT BOTTOM SIDE OF GEAR FOLLOW MARKING NO NEED APPLY GREASE AT BOTTOM SIDE APPLY GREASE AT TOP SIDE OF GEAR FOLLOW MARKING OTHER THAN FIGURE 1 DIRECTION ALL N.G BLACK MARK FIGURE 1 2 – 9...
  • Page 15 CD-MPS777H APPLY GREASE AT HALF GEAR AREA ROTATE CLOCKWISE UNTIL REACH HERE (MAXIMUM) 2 – 10...
  • Page 16 CD-MPS777H CHANGE COLOR TO BLACK 2 – 11...
  • Page 17 CD-MPS777H TRAY BIG GEAR MUST FREE FROM GREASE THE SHOWN AREA CHANGE COLOR TO BLACK O . K GREASE APPLICATION LENGTH GREASE APPLICATION PORTION N . G TRAY BIG GEAR CHANGE COLOR TO BLACK SHOWN HOLE MUST FACING ARROW DIRECTION...
  • Page 18 CD-MPS777H APPLY GREASE AT BOTTOM SIDE ONLY TR-RE JOINT GEAR C APPLY GREASE ONLY AT TOP SIDE GEAR MUST FIX ACCORDING TO THE HOLE'S 2 – 13...
  • Page 19 CD-MPS777H 2 – 14...
  • Page 20 CD-MPS777H APPLY GREASE WHEN FIXING ITEM 2 MUST FOLLOW AS SHOWN 2 – 15...
  • Page 21 CD-MPS777H FIGURE 1 FIGURE 2 APPLY GREASE APPLY GREASE SC141 FIGURE 3 2 – 16...
  • Page 22 CD-MPS777H ITEM 2 , 3 MUST APPLY GREASE ON TOP SIDE GEAR ONLY GEAR 112 GEAR 112 O . K N . G TOP VIEW AFTER FIX REVERSE N.G ASSY 2 – 17...
  • Page 23 CD-MPS777H APPLY GREASE BEFORE FIX MOVE 112 UNTIL TOUCH THE WALL DURING GEAR A ROTATE MUST PRESS SHOWN AREA AND LEVER B WILL MOVE ARROW DIRECTION THEN FIX PART 108 SCREW TORQUE +0.5 kgf-cm 803 x6 APPLY GREASE CONFIRM WHETHER...
  • Page 24 CD-MPS777H APPLY GREASE BEHIND THE LEVER NEED TO APPLY GREASE PULL IT THEN LEVER WILL MOVE IN 2 – 19...
  • Page 25 CD-MPS777H APPLY GREASE APPLY GREASE BEFORE FIX APPLY GREASE AT BOSS SPRING MUST ARRANGE UNDER THE HOOK O.K LR JOINT LEV BOARD R LR JOINT LEV BOARD R 2 – 20...
  • Page 26 CD-MPS777H ASSY REVERSELY N.G APPLY GREASE BIG SLOT MUST FACING OUT WHEN FIX & AFTER FIX TO BASE CHASSIS AFTER ASSY CONFIRM THE FREE DROP GEAR POSITION DURING FIXING 2 – 21...
  • Page 27 CD-MPS777H ASSY REVERSELY N.G APPLY GREASE BIG SLOT MUST FACING OUT WHEN FIX & AFTER FIX TO BASE CHASSIS AFTER ASSY CONFIRM THE FREE DROP GEAR POSITION DURING FIXING CONFIRM BOTH GEAR SIT PROPELY & LOCKED 2 – 22...
  • Page 28 CD-MPS777H AFTER FIX OUTER UP/DOWN LEVER HOLD SHOWN PORTION AND MOVE UP/DOWN THEN CONFIRM LEVER GO INSIDE THE HOLE OR NOT IF GO INSIDE HOLE IS O.K BIGGER SLOT FACING OUT IF NO GO INSIDE HOLE IS N.G BIGGER SLOT FACING OUT...
  • Page 29 CD-MPS777H BIG SLOT FACING OUT 2 – 24...
  • Page 30 CD-MPS777H PUSH THE LEVER ACCORDING TO ARROW DIRECTION THEN FIX WHEN FIX MAIN BASE ASSY FOLLOW ACCORDING TO O.K PICTURE MAKE SURE MECHA HOLDER SHAFT FIX PROPELY TO LEVER 2 – 25...
  • Page 31 CD-MPS777H APPLY SANKOL APPLY SANKOL ON TOP APPLY SANKOL INSIDE THE SLOT & OTHER SHOWN PORTION COSMO GUIDE TRAY HAVE FIX TRAY NO 1 FIRST THAN MARKING AS SHOWN FOLLOW OTHER APPLY SANKOL AT TRAY SLIDING PORTION 2 – 26...
  • Page 32 CD-MPS777H GEAR UP/DOWN BOARD APPLY GREASE AT INNER & OUTER GEAR SLIDING PORTION WHEN FIX GEAR UP/ DOWN BOARD THE TWO LEVER MUST AT PARALLEL LINE & POSITION AT TOP MAX SIDE AFTER ASSY GEAR UP/DOWN BOARD 2 – 27...
  • Page 33 CD-MPS777H SCREW TORQUE +0.5 kgf-cm 2 – 28...
  • Page 34 CD-MPS777H AFTER ASSY TOP PLATE FIX THE FFC FFC4 AFTER PUSH MAKE SURE SNAP PROPELY PRESS IN BACK PORTION AFTER FIX PUSH FOLLOW ARROW DIRECTION SLOT IN BEFORE LOCK AFTER LOCK BEFORE LOCK MUST CONFIRM AFTER LOCK BEFORE LOCK AFTER LOCK MUST CONFIRM 2 –...
  • Page 35 CD-MPS777H CAUTION 1. MAKE SURE NO PWB CHIP INSIDE SET .( BEFORE FIX MAKE SURE PWB NO DUST , GREASE & ETC ) 2 – 30...
  • Page 36 CD-MPS777H THE TWO SLOT MUST FREE FROM GREASE ASSEMBLY SEQUENCE APPLY GREASE BELOW THE MARKING FOR 1. APPLY GREASE TO MAIN BASE BOTH PORTION GREASE APPLICATION AREA ALL BOSS APPLY GREASE APPLY GREASE AT 3 HALF MOON APPLY GREASE APPLY GREASE...
  • Page 37 CD-MPS777H REFERENCE ONLY MOTOR GEAR HEIGHT FROM MAIN BASE 12.2 MOTOR SCREWING HOLE SCREW TORQUE + 0.5 MUST HAVE GAP M1,2 AFTER SCREW MOTOR,CONFIRM THE ARRANGEMENT AS IN FIGURE 2 FIGURE 2 APPLY GREASE 2 – 32...
  • Page 38 CD-MPS777H 3.1 + 0.1 SHAFT X 3 DIM AFTER INSERTION APPLY SANKOL MUST CONFIRM EVERYDAY SANKOL APPLICATION AREA 109-2 APPLY GREASE AT THE SLIDING PORTION APPLY GREASE UP / DOWN HOLDER CHANGE TO NATURE COLOR 2 – 33...
  • Page 39 CD-MPS777H BEFORE MELT IT AFTER MELT IT ( MUST FLAT ) WHEN FITTING STABILIZER PLATE TO STABILIZER, ROTATE STABILIZER ANTI CLOCKWISE BY JIG AFTER ASSY TO HOLDER STABILIZER NEED CLEAN ( BY HAND CANNOT X ) WITH ALCOHOL DISC TOUCHING SURFACE...
  • Page 40 CD-MPS777H APPLY GREASE MUST MAKE SURE SNAP PROPELY BOTH SIDE ALL SURFACE MUST TOUCH O . K 2 – 35...
  • Page 41 CD-MPS777H NO GAP HAVE GAP 2 – 36...

  • Page 42: Caution On Diassembly

    CD-MPS777H Audio CD-MPS777H Service Manual CD-MPS777H Market CHAPTER 3. MECHANISM BLOCKS [1] Caution on diassembly Caution on Disassembly Follow the below-mentioned notes when disassembling the unit and reassembling it, to keep it safe and ensure excellent performance: 1. Take cassette tape and compact disc out of the unit.
  • Page 43 CD-MPS777H (F2)x1 (K1)x4 φ3x10mm Front Panel Tape Mechanism Open (F1)x6 (K2)x1 φ3x10mm Cassette Cover Lug Wire Changer Front Panel Mechanism Display PWB Unit (G2)x10 φ2.6x10mm (G3)x5 (L1)x4 (G1)x1 φ2.6x10mm CD Mechanism Game Input (H1)x2 φ3x10mm Changer Mechanism Unit (J1)x2 φ3x10mm...

  • Page 44: Tweeter 1

    CD-MPS777H CP-MPS777H REMOVAL PROCEDURE STEP Passive Radiator 1. Screw ...... (A1) x4 2. Side Panel ....(A2) x1 3. Screw ...... (A3) x4 Woofer 1. Front Panel ..... (B1) x1 2. Screw ...... (B2) x4 Tweeter 1. Screw ...... (C1) x2...

  • Page 45: Removing And Reinstalling The Main Parts

    CD-MPS777H [2] Removing and reinstalling the main parts 1. TAPE MECHANISM SECTION Perform steps 1 to 5 and 6 of the disassembly method to remove the tape mechanism. 1.1. How to remove the record/playback and erase heads (TAPE 2) (See Fig. 1) 1.

  • Page 46: Figure

    CD-MPS777H 2. CD MECHANISM SECTION Perform steps 1, 2, 9, 10 and 11 of the disassembly method to remove Reduction gear C the CD mechanism. 2.1. Remove the pickup. (See Fig. 1) 1. Remove the stop washer (A1) x 1 pc., to remove the gear (A2) x 1 2.
  • Page 47 CD-MPS777H 3.2. How to Remove the tray motor/main cam motor/5- Changer Motor PWB (See Fig. 6) 1. Remove the screws (A1)x 2 pcs., to remove tray motor/main cam motor/5-Changer Motor PWB. Changer Mechanism Unit Tray Motor Main Cam Motor 5-Changer...

  • Page 48: Block Diagrams

    CD-MPS777H Audio CD-MPS777H Service Manual CD-MPS777H Market CHAPTER 4. DIAGRAMS [1] Block diagrams TO DISPLAY SECTION TO MAIN SECTION CNP5 14 13 12 CNP2 68 67 66 65 64 63 62 51 53 59 69 LVDD MO_B-/CONT2 RVDD MO_B+/CONT3 LCHO...
  • Page 49 CD-MPS777H L8316V35 D-RAM MDATA0 MDATA3 MDATA0 MDATA4 MDATA7 MDATA7 SI3033LUS MDATA8 DWEB VOLTAGE DRASB REGULATOR MDATA15 ADRS0 LC78683E RASB ADRS3 MP3 DECODER ADRS4 ADRSB ADRS8 ADRS7 D0EM MDATA8 DCASUB ADRS0 MDATA11 DCASLB MDATA12 MDATA15 43 44 45 68 61 51 31 21 11 77 73 66...
  • Page 50 CD-MPS777H FE301 FM IF SO302 FM FRONT END FM ANTENNA AMP. 10.7 MHz TERMINAL ZD351 Q301 CF302 CF301 5.1V CF351 X351 450 kHz 456 kHz T351 CF352 AM IF PHASE FM/AM (FM/AM) MPX IN AM LOOP ANTENNA L354 LOW PASS LOW...
  • Page 51 CD-MPS777H FL701 FL DISPLAY TAPE MECHANISM ASS'Y RX701 59 40 50 49 28 26 25 13 27 REMOTE SENSOR IC701 AVDD SYSTEM VLOAD MICROCOMPUTER (1/2) IXA008AW SW701-SW707 SW709-SW723 (SERIAL NO.401xxxxx) SW725-SW735 IXA022AW (SERIAL NO.402xxxxx~) 1 2 3 4 5 6 7...

  • Page 52: Chapter 5. Circuit Description

    CD-MPS777H Audio CD-MPS777H Service Manual CD-MPS777H Market CHAPTER 5. CIRCUIT DESCRIPTION • The indicated voltage in each section is the one measured by Digi- tal Multimeter between such a section and the chassis with no sig- nal given. [1] Notes on schematic diagram 1.

  • Page 53: Waveforms Of Cd Circuit

    CD-MPS777H [3] 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...

  • Page 54: Voltage

    CD-MPS777H [4] Voltage IC301 IC601 IC701 NO. VOLTAGE NO. VOLTAGE NO. VOLTAGE NO. VOLTAGE NO. VOLTAGE NO. VOLTAGE 3.20 V 2.10 V 4.74 V 1.61V 2.20 V 4.65 V 1.61 V 2.10 V 0.29 V 1.60 V 2.20 V 0.20 V 5.10 V...
  • Page 55 CD-MPS777H — MEMO — 5 – 4...

  • Page 56: Chapter 6. Circuit Schematics And Parts Layout

    CD-MPS777H Audio CD-MPS777H Service Manual CD-MPS777H Market CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS LAYOUT [1] Schematic diagram CD SERVO PWB-C 100P(CH) 0.022 100P(CH) 100P(CH) 100P(CH) CD SIGNAL 100P(CH) 100P(CH) 47/25 0.022 4.7K PICKUP UNIT(306) 0.01 0.22 4.7K 4.7K 0.047 FFC1 0.001...
  • Page 57 CD-MPS777H ONLY FCLK FLASH FFC704 CNP4 47/10 4.7K 4.19 MHz 4.7K 100K CD RES 0.01 RESET FSYNC 2.2K 2.2K MP3-RES CDEMPH SYS-DI DISC SYS-DO IXA006AW CLAMP MICRO- TRAY SW1 SYS-CL TRAY SW2 COMPUTER SYS-CE PHOTO INTB 2.2K AVDD AVREF SUB_CE 0.01...
  • Page 58 CD-MPS777H DISPLAY PWB-A2 FL701 FL DISPLAY LED DRIVER Q710 KRC102 S 51 50 49 48 47 46 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 9...
  • Page 59 CD-MPS777H 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 R795 C701 1/50 95 96 97 98 99 100 R763 CD_RESOUT -20dBATT R701 CD_WRQ T_BIAS R702 CD_DRF T_REC/PLAY CD DO R703 T_T1/T2 CD DI...
  • Page 60 CD-MPS777H MAIN PWB-A1 (1/3) FM SIGNAL BI601 R-CH PLAYBACK SIGNAL R601 A_GND R602 RECORD SIGNAL L-CH CD_GND A+5V CD SIGNAL D_GND IC601 VIDEO SIGNAL C653 C601 C602 LC75341 220P 0.022 220/16 D+5V AUDIO SIGNAL AUDIO PROCESSOR R603 CNS601 C609 R605...
  • Page 61 CD-MPS777H GAME INPUT PWB-B2 WTM901 FW901 M_+13V SP_RLY R-CH L-CH L603 2.2µH JK691 C692 C693 0.001 0.001 VIDEO OUT CNS603 VIDEO IN R693 C601 C602 L-CH 0.022 220/16 R691 C691 8.2K 390P R603 AUX/VIDEO R690 C690 R692 8.2K 390P R-CH...
  • Page 62 CD-MPS777H IC901 STK41242 POWER AMP. R903 L902 3µH Q903 KTC3875 GR R917 ZD902 ZD903 0.1(3W) DZ12BSB DZ12BSB C917 0.01 R919 R926 R925 R910 1.5K 1.5K 1.8K (1/2W) (1/2W) Q902 KTC3875 GR Q901 KTC3875 GR D905 R920 DS1SS133 1.8K C911 100/100...
  • Page 63 CD-MPS777H FM SIGNAL Q906 L902 KTC3203 Y D912 3µH R949 DS1SS133 R942 470(2W) M901 C931 R950 R943 470(2W) R947 10/50 MOTOR L1_OUT CNS971 R1_OUT C952 C927 RL914 C926 0.01 0.22 0.22 M_+13V SP_RLY D911 C929 DS1SS133 R-CH C928 0.22 0.22...
  • Page 64 CD-MPS777H C302 0.001 AM TRACKING C331 0.047 C323 0.022 C332 C338 0.001 T303 TP302 D301 0.022 AM ANTENNA DS1SS133 D302 AM LOOP DS1SS133 VD301 ANTENNA T306 SVC347S C335 AM OSC. 560P L354 R358 LOW PASS FILTER 3.9K R350 2.7K C334...
  • Page 65 CD-MPS777H MAIN PWB-A1 (2/3) TP302 C371 1/50 FILTER C372 1/50 ICT21 LC72723 RT32 RDS DECODER 6.8K CT29 RT24 RT31 XT21 0.022 4.332 MHz RT26 RT25 10 11 ICT21 LC72723 QT21 KTC3875 GR R355 XOUT 3.3K CT30 VSSd C356 TEST 0.001 0.022...

  • Page 66: Wiring Side Of Pwb

    CD-MPS777H [2] Wiring side of PWB DISPLAY PWB-A2 JOG701 VOLUME R780 SW704 SW706 TUNING EQUALIZER RD05 R785 DOWN R775 RD04 RD06 SW705 FAST REWIND/ R776 PRESET DOWN RD07 R778 R728 RD03 SW703 Q708 B C E TUNING Q716 R779 R725...
  • Page 67 CD-MPS777H P6-15 5-B TO POWER PWB CNP802 P6-18 3-B TO TAPE MECHANISM PWB FW705 FFC702 SW716 SW727 X-BASS/ REC/ DEMO WTM705 RD24 PAUSE 3 5 7 CNP702A SW726 2 4 6 STOP RD25 SW728 R790 Q708 MEMORY/ R786 R770 R783...
  • Page 68 CD-MPS777H MAIN PWB-A1 XT21 C348 R374 R373 C302 R378 R372 CT24 C382 1 2 3 4 5 6 7 8 9 10 11 RT26 CF301 IC302 1 2 3 CT25 C381 R348 R379 C387 QT21 R344 CT22 CT26 RT21 RT23...
  • Page 69 CD-MPS777H R124 R122 R138 R136 C134 C120 C135 C128 COLOR TABLE R132 BROWN R158 C133 C131 RD(R) C126 R135 ORANGE R130 C127 YELLOW C129 R150 C125 GREEN R133 R131 BLUE C121 FFC701 VIOLET R129 R128 C143 GRAY P6-18 4-F W H ( W )
  • Page 70 CD-MPS777H P6-14 11-G FROM MAIN PWB POWER PWB-B1 CNS801 R841 1 2 3 4 5 6 CNP802 D853 R844 D801 CNP801 C811 R858 C841 C810 C804 D802 C843 R842 C808 F802 T5A L 250V Q841 B C E R843 PT801 MAIN POWER TRANSFORMER T.F.
  • Page 71 CD-MPS777H 1110 70 75 50 55 CD SERVO PWB-D (TOP VIEW) Figure 6-16 WIRING SIDE OF PWB (6/8) 6 – 16...
  • Page 72 CD-MPS777H FFC1 FFC4 CNS3B P6-18 5-F FROM CD MOTOR PWB CNP5 CNP2 CD SERVO PWB-D (BOTTOM VIEW) CNS601 FFC704 P6-14 11-F FROM MAIN PWB CNP704 P6-12 11-E TO DISPLAY PWB • The number are waveform number shown in page 5-2.
  • Page 73 CD-MPS777H P16-12 7-A COLOR TABLE TAPE MECHANISM TO DISPLAY PWB ASSEMBLY BROWN CNP702 R D (R ) TAPE MECHANISM PWB-D ORANGE FFC702 YELLOW GREEN BLUE VIOLET GRAY W H (W ) WHITE BLACK PINK SOLENOID SOLENOID TAPE MOTOR CLAMP TAPE 2...

  • Page 74: Troubleshooting

    CD-MPS777H Audio CD-MPS777H Service Manual CD-MPS777H Market CHAPTER 7. FLOWCHART [1] Troubleshooting 1. When the CD does not function The CD section may not operate when the objective lens of the optical pickup is dirty. Clean the objective lens, and check the playback operation.
  • Page 75 CD-MPS777H (1) Focus-HF system check. Stopped CH1=500 mV CH3=500 mV 500 ms/div DC 10:1 DC 10:1 (500 ms/div) NORM:20 kS/s Although a CD is inserted and the cover is closed, "NO DISC" is displayed. Press the Tray1 CD Eject Button without inserting a disc, and try starting the playback operation.
  • Page 76 CD-MPS777H (2) Focus-HF system check. Check the TE waveform at pin 17 on IC1. If the waveform shown in Figure 4 appears and soon after NO The tracking servo is not activated. DISC appears? Check the peripheral circuits at pins 16, 17 and 22 on IC1, and FFC1.
  • Page 77 CD-MPS777H (4) PLL system check. Stopped 1999/04/05 17:33:17 CH1=500 mV CH3=1 V CH4=1 V 500 ms/div DC 10:1 DC 10:1 DC 10:1 (500 ms/div) NORM:20 kS/s When a disc is loaded, start play operation. PDO1 The HF waveform is normal, but the TOC data cannot be read.

  • Page 78: Function Table Of Ic

    CD-MPS777H Audio CD-MPS777H Service Manual CD-MPS777H Market CHAPTER 8. OTHERS [1] Function table of IC IC1 VHiLC78648E-1: CD Servo (LC78648E) (1/2) Pin No. Terminal Name Input/Output Setting in Reset Function AVDD1 Output — Analog power supply pin 1. SLCO Output —...
  • Page 79 CD-MPS777H IC1 VHiLC78648E-1: CD Servo (LC78648E) (2/2) Pin No. Terminal Name Input/Output Setting in Reset Function RCHO Output RVDD /2 Right channel R channel Power supply pin. D/A converter RVDD — — R channel output supply pin. XVSS — —...
  • Page 80 CD-MPS777H IC1 VHiLC78648E-1: CD Servo (LC78648E) 75 74 72 71 69 68 66 65 63 62 AVDD1 DVDD SLCO DATA EFMIN DATACK LRSY ASDFIN JITTC ASDACK ASLRCK F16MOUT OUT1 F16MIN LC78648E IOMODE PHLPF/RFMON XVDD VREF XOUT XVSS RVDD RCHO TEIN...
  • Page 81 CD-MPS777H IC2 VHILA6261//-1: Focus/Tracking/Spin/Sled Driver (LA6261) Pin No. Terminal Name Function VO3+ BTL Output pin (+) for channel 3. VO3- BTL Output pin (-) for channel 3. VO2+ BTL Output pin (+) for channel 2. VO2- BTL Output pin (-) for channel 2.
  • Page 82 CD-MPS777H IC2 VHILA6261//-1: Focus/Tracking/Spin/Sled Driver (LA6261) VOLTAGE CONTROL AMP DUFFER AMP DUFFER AMP For VREF For 1/2 VCC Reference voltage Band gad Figure 8-5 BLOCK DIAGRAM OF IC 8 – 5...
  • Page 83 CD-MPS777H IC601 VHiLC75341/-1: Audio Processor (LC75341) Pin No. Terminal Name Function Pin No. Terminal Name Function 13-16 R1-4 Input signal pin. Serial data and clock input pin for con- RSEL0 Input selector output pin. trol. Volume + equalizer output pin Chip enable pin.
  • Page 84 CD-MPS777H IC701 RH-iXA008AWZZ: System Microcomputer (IXA008AW) (Serial No. 401xxxxx) (1/2) IC701 RH-iXA022AWZZ: System Microcomputer (IXA022AW) (Serial No. 402xxxxx~) (1/2) Pin No. Port Name Terminal Name Input/Output Function Input (+) Power supply 5 V. -20dBATT Output -20dB Attenuator. T BIAS Output Tape record bias control.
  • Page 85 CD-MPS777H IC701 RH-iXA008AWZZ: System Microcomputer (IXA008AW) (Serial No. 401xxxxx) (2/2) IC701 RH-iXA022AWZZ: System Microcomputer (IXA022AW) (Serial No. 402xxxxx~) (2/2) Pin No. Port Name Terminal Name Input/Output Function P107 Output FL segment driver/Destination input. P106 Output FL segment driver/Destination input. P105 Output FL segment driver/Destination input.
  • Page 86 CD-MPS777H IC851 VHIAN80T53/-1: Multi Regulator (AN80T53) Terminal Name Function REG4 Output 5.1 V power supply with a minimum peak out current of 1200 mA. REG3 Output 13 V power supply with a minimum peak out current of 1350 mA. Connected to Power supplies.

  • Page 87: Fl Display

    CD-MPS777H [2] FL Display FL701 VVKNA12MM44-1 GRID ASSIGNMENT col2 Dot2 col1 Dot1 2G 3G 4G 5G 6G 7G h j k (1G) (2G~11G) ANODE CONNECTION FOLDER TITLE-1 TITLE-2 TOTAL TITLE-3 D5-a PTYI D5-b D5-c SLEEP DAILY D4-a D4-b D4-c D3-a...
  • Page 88 CD-MPS777H — MEMO — 8 – 11...

  • Page 89: Parts Guide

    CD-MPS777H PARTS GUIDE MINI COMPONENT SYSTEM CD-MPS777H MODEL CD-MPS777H Mini Component System consisting of CD-MPS777H (main unit) and CP-MPS777H (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 90 CD-MPS777H PRICE PRICE PART CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK ZD802 VHEDZ7R5BSB-1 AB Zener,7.5V,DZ7.5BSB CD-MPS777H ZD803 VHEDZ300BSB-1 AB Zener,30V,DZ30BSB ZD805 VHEDZ120BSB-1 AB Zener,12V,DZ12BSB INTEGRATED CIRCUITS ZD902,903 VHEDZ120BSB-1 AB Zener,12V,DZ12BSB ZDT21 VHEDZ5R1BSB-1 AC Zener,5.1V,DZ5.1BSB VHILC78648E-1 AW CD Servo,LC78648E FILTERS VHILA6261//-1...
  • Page 91 CD-MPS777H PRICE PRICE DESCRIPTION DESCRIPTION PART CODE PARTS CODE RANK RANK AB 0.22 µF,16V AB 0.022 µF,25V VCKYCY1CF224Z C363 VCKYCY1EF223Z AB 0.1 µF,16V AB 2.2 µF,50V,Electrolytic VCKYCY1CB104K J C364 VCEAZA1HW225M J AA 0.01 µF,16V AA 0.022 µF,16V VCKYCY1CB103K J C365 VCTYPA1CX223K AB 0.1 µF,16V...
  • Page 92 CD-MPS777H PRICE PRICE PART CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK C913 VCCCCY1HH101J J AA 100 pF (CH),50V VRS-CY1JB472J AA 4.7 kohms,1/16W AD 100 µF,100V,Electrolytic C914,915 VCEAZA2AW107M J VRS-CY1JB222J AA 2.2 kohms,1/16W AC 100 µF,50V,Electrolytic C916 VCEAZA1HW107M J R86~89 VRS-CY1JB472J AA 4.7 kohms,1/16W...
  • Page 93 CD-MPS777H PRICE PRICE DESCRIPTION DESCRIPTION PART CODE PARTS CODE RANK RANK R564 VRS-CY1JB103J AA 10 kohm,1/16W R858 VRD-ST2CD221J AA 220 ohms,1/6W R573 VRD-ST2CD103J AA 10 kohm,1/6W R859 VRD-ST2CD103J AA 10 kohm,1/6W R593 VRS-CY1JB472J AA 4.7 kohms,1/16W R864 VRD-ST2CD223J AA 22 kohms,1/6W...
  • Page 94 CD-MPS777H PRICE PRICE PART CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK RT32 VRS-CY1JB682J AA 6.8 kohms,1/16W SW714 92LSWICH1401AT J AC Switch,Key Type [Tape] SW715 92LSWICH1401AT J AC Switch,Key Type [Game/Video] OTHER CIRCUITRY PARTS SW716 92LSWICH1401AT J AC Switch,Key Type [X-Bass/Demo]...
  • Page 95 CD-MPS777H PRICE DESCRIPTION PART CODE RANK NGERH0182AWZZ J AC Mechanism Clamp Joint Gear LBND-1011AWZZ AA Nylon Band 1 220 NGERH0183AWZZ J AC Mechanism Clamp Board Gear QACCE0015AW00 J AK AC Power Supply Cord NGERH0184AWZZ J AC Tray Rear Joint Gear A...
  • Page 96 CD-MPS777H PRICE PART CODE DESCRIPTION RANK SP1,2 RSP-ZA022AWZZ BD Woofer SP3,4 RSP-ZA023AWZZ AS Tweeter SP5,6 RSP-ZA008AWZZ AS Passive Radiator SP7~10 LHLDZA006AWM1 J AS Super Tweeter Ass'y ACCESSORIES/PACKING PARTS SPAKAA013AWZZ J AM Packing Add.,Top/Bottom SPAKZA010AWZZ J AF Sheet SSAKH0053AWZZ J AC Polyethylene Bag...
  • Page 97 CD-MPS777H CD-MPS777H 306-2 306-1 306-3 703x2 305x2 NSW1 PWB-F Figure 8 CD MECHANISM EXPLODED VIEW – 8 –...
  • Page 98 CD-MPS777H CD-MPS777H CHANGER BELT CONNECTION 601x5 MECHANISM UNIT FF/REW Tape FF/REW ROLLER Motor ROLLER ASS'Y ASS'Y FLYWHEEL FLYWHEEL ASS'Y MAIN BELT ASS'Y TAPE2 TAPE1 601x3 PWB-D 605x6 233x2 MECHANISM 603x4 233x2 601x3 601x2 602x2 604x10 602x4 PWB-A2 PWB-C M901 602x2...
  • Page 99 CD-MPS777H CD-MPS777H 803x6 801x2 PWB-E 109-3 109-5 803x2 109-1 109-4 109-2 Figure 10 CHANGER MECHANISM EXPLODED VIEW – 10 –...
  • Page 100 910x4 SP5,6 914x4 SP1,2 SPEAKER EXPLODED VIEW © COPYRIGHT 2004 BY SHARP CORPORATION ALL RIGHTS RESERVED. SHARP CORPORATION AV Systems Group Quality & Reliability Control Center No part of this publication may be reproduced, Higashihiroshima, Hiroshima 739-0192, Japan stored in a retrieval system, or transmitted in...

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