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Sharp CD-MPX870 Service Manual
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Sharp CD-MPX870 Service Manual

Mini component system
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See also: Operating Manual
PRECAUTIONS FOR USING LEAD FREE SOLDER
[1]
Specifications ......................................... . ....... 1-1
[2]
Names of parts....................................... . ....... 1-2
[1]
Mechanism section ................................ . ....... 2-1
[2]
Test mode .............................................. . ....... 2-2
[3]
CD section ............................................. . ....... 2-4
[4]
CD Changer mechanism section ........... . ....... 2-5
[1]
Caution on disassembly......................... . ....... 3-1
[2]
CHAPTER 4. DIAGRAMS
[1]
CD Block diagrams ................................ . ....... 4-1
[2]
Main Block diagrams ............................. . ....... 4-2
[1]
Waveforms of CD circuit ........................ . ....... 5-1
[2]
Voltage ................................................... . ....... 5-2
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

MINI COMPONENT SYSTEM

MODEL
CD-MPX870 Mini Component System consisting of
CD-MPX870 (main unit) and CP-MPX870 (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.
CONTENTS
[1]
Notes on schematic diagram......................... 6-1
[2]
Types of transistor and LED .......................... 6-1
[3]
Schematic diagram........................................ 6-2
[4]
Wiring side of PWB ..................................... 6-10
[1]
Troubleshooting............................................. 7-1
[1]
Function table of IC ....................................... 8-1
[2]
FL Display ..................................................... 8-8
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
CD-MPX870
No. S6623CDMPX870
CD-MPX870

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  • Page 1: Table Of Contents

    No. S6623CDMPX870 MINI COMPONENT SYSTEM CD-MPX870 MODEL CD-MPX870 Mini Component System consisting of CD-MPX870 (main unit) and CP-MPX870 (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-MPX870 Audio XL-MP150 Service Manual XLMP150 Market PRECAUTIONS FOR USING LEAD-FREE SOLDER 1. Employing lead-free solder "MAIN, DISPLAY, POWER, JACK, CD SERVO, CD MOTOR (PWB ONLY), CD CHANGER MOTOR (PWB ONLY), LED PWB" of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWB and service manuals. The alphabetical character following LF shows the type of lead-free solder.

  • Page 3: Chapter 1. General Description

    FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL. ■ As part of our policy of continuous improvement, SHARP reserves Tuner the right to make design and specifcation changes for product Frequency range FM: 87.5 - 108.0 MHz...

  • Page 4: Names Of Parts

    CD-MPX870 [2] Names of parts Front panel 1. Disc Trays 2. Timer Indicator 3. Tuner (Band) Button 4. CD Button 5. ON/STAND-BY Button 6. Tape (1 2) Button 7. Game/Video Button 8. Tape 1 Cassette Compartment 9. Headphone Jack 10. Game/Video Input Jacks 11.
  • Page 5 CD-MPX870 Remote control 1. Remote Control Transmitter 2. Disc Number Select Buttons 3. Clock/Timer Button 4. Character Input/Disc Direct Search Buttons 5. Equalizer Mode Select Button 6. Extra Bass/Demo Button 7. ON/STAND-BY Button 8. CD Button 9. Tuner (Band) Button 10.

  • Page 6: Chapter 2. Adjustments

    CD-MPX870 CD-ES700/CD-ES77 CD-ES700/CD-ES77 Service Manual CD-ES700/CD-ES77 Market CHAPTER 2. ADJUSTMENTS [1] Mechanism section • Driving Force Check Torque Meter Specified Value Play: TW-2111 Tape 1: Over 80 g Tape 2: Over 80 g • Torque Check Torque Meter Specified Value...

  • Page 7: Test Mode

    CD-MPX870 [2] Test mode • Setting the test mode During stand-by mode, press GAME/VIDEO button while pressing down the button and 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-MPX870 <<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-MPX870 [3] CD section CD Error code description Error Explanation CAM error. Can't detect CAM switch when CAM is moving. When it detect cam operation error during initialize pro- cess. TRAY error. Can't detect TRAY switch when TRAY is mov- ing.

  • Page 10: Cd Changer Mechanism Section

    CD-MPX870 [4] CD Changer mechanism section • All numbers in the drawing correspond to those in parts guide (CHANGER MECHANISM PARTS). HALF GEAR MUST BE ARRANGED AS SHOWN 2 – 5...
  • Page 11 CD-MPX870 APPLY SANKOL SHS1001 BEFORE FIX FIX ITEM 139 ACCORDING TO THE PICTURE AS SHOWN ABOVE ROTATE MODE BIG GEAR UNTIL REACH AS SHOWN IN PICTURE 2 – 6...
  • Page 12 CD-MPX870 APPLY GREASE SC141 PULL THE LEVER UNITIL REACH THE ARROW MARK 2 – 7...
  • Page 13 CD-MPX870 FIGURE 2 FIGURE 1 APPLY GREASE SC141 SLOT CLAMP SWITCH ARM INSIDE BASE SLOT HALF GEAR MUST BE ARRANGED AS SHOWN 2 – 8...
  • Page 14 CD-MPX870 APPLY GREASE SC141 AT BOTTOM SIDE OF GEAR FOLLOW MARKING (REFER TO GRAY AREA) NO NEED TO APPLY GREASE AT BOTTOM SIDE APPLY GREASE SC141 AT TOP SIDE OF GEAR FOLLOW MARKING (REFER TO GRAY AREA) IF DIRECTION IS OTHER THAN DIRECTION...
  • Page 15 CD-MPX870 APPLY GREASE SC141 AT HALF GEAR AREA ROTATE CLOCKWISE UNTIL REACH HERE (MAXIMUM) 2 – 10...
  • Page 16 CD-MPX870 2 – 11...
  • Page 17 CD-MPX870 THE SHOWN AREA MUST FREE FROM GREASE CORRECT GREASE SC141 APPLICATION LENGTH GREASE APPLICATION PORTION INCORRECT SHOWN HOLE MUST FACING ARROW DIRECTION 2 – 12...
  • Page 18 CD-MPX870 APPLY GREASE SC141 AT BOTTOM SIDE ONLY TR-RE JOINT GEAR C APPLY GREASE SC141 ONLY AT TOP SIDE GEAR MUST BE FIXED ACCORDINGLY TO THE HOLE'S 2 – 13...
  • Page 19 CD-MPX870 2 – 14...
  • Page 20 CD-MPX870 APPLY GREASE SC141 WHEN FIXING ITEM 144 MUST FOLLOW AS SHOWN 2 – 15...
  • Page 21 CD-MPX870 FIGURE 1 FIGURE 2 APPLY GREASE SC141 APPLY GREASE SC141 FIGURE 3 2 – 16...
  • Page 22 CD-MPX870 ITEM 133 , 134 MUST APPLY GREASE SC141 ON TOP SIDE GEAR ONLY GEAR 112 GEAR 112 CORRECT INCORRECT TOP VIEW AFTER IT IS INCORRECT TO BEING ASSEMBLED FIX IT IN REVERSED DIRECTION 2 – 17...
  • Page 23 CD-MPX870 APPLY GREASE SC141 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 SC141...
  • Page 24 CD-MPX870 APPLY GREASE SC141 BEHIND THE LEVER NEED TO APPLY GREASE SC141 PULL IT THEN LEVER WILL MOVE IN 2 – 19...
  • Page 25 CD-MPX870 APPLY GREASE SC141 APPLY GREASE SC141 BEFORE FIX APPLY GREASE SC141 AT BOSS SPRING MUST BE ARRANGED UNDER THE HOOK CORRECT LR JOINT LEV BOARD R LR JOINT LEV BOARD R INCORRECT 2 – 20...
  • Page 26 CD-MPX870 IT IS INCORRECT IF ASSEMBLED IN A REVERSED DIRECTION APPLY GREASE SC141 BIG SLOT MUST FACING OUT WHEN FIX AND AFTER FIXED TO BASE CHASSIS. AFTER ASSEMBLY, CONFIRM WITH FREE DROP TEST GEAR POSITION DURING FIXING 2 – 21...
  • Page 27 CD-MPX870 IT IS INCORRECT IF ASSEMBLED IN A REVERSED DIRECTION APPLY GREASE SC141 BIG SLOT MUST FACING OUT WHEN FIX AND AFTER FIXED TO BASE CHASSIS AFTER ASSEMBLY, CONFIRM WITH FREE DROP TEST GEAR POSITION DURING FIXING CONFIRM BOTH GEARS SIT PROPERLY AND LOCKED...
  • Page 28 CD-MPX870 AFTER FIX OUTER UP/DOWN LEVER HOLD AS SHOWN PORTION AND MOVE UP/DOWN THEN CONFIRM WHETHER LEVER GO INSIDE THE HOLE OR NOT IT IS CORRECT IF THE LEVER HOLD ENTERS THE HOLE BIGGER SLOT FACING OUT IT IS INCORRECT IF THE LEVER HOLD DOES NOT...
  • Page 29 CD-MPX870 BIG SLOT FACING OUT 2 – 24...
  • Page 30 CD-MPX870 PUSH THE LEVER ACCORDING TO ARROW DIRECTION THEN FIX WHEN FIXING MAIN BASE ASSEMBLY FOLLOW ACCORDING TO PICTURE 1 PICTURE 3 PICTURE 1 PICTURE 2 CORRECT INCORRECT INCORRECT MAKE SURE MECHA HOLDER SHAFT FIX PROPERLY TO LEVER 2 – 25...
  • Page 31 CD-MPX870 APPLY SANKOL (SHS1001) APPLY SANKOL (SHS1001) ON TOP APPLY SANKOL (SHS1001) INSIDE THE SLOT & OTHER SHOWN PORTION APPLY SANKOL (SHS1001) APPLY SANKOL (SHS1001) AT BACK PORTION COSMO GUIDE TRAY HAVE MARKING AS SHOWN FIX TRAY NO 1 FIRST THAN...
  • Page 32 CD-MPX870 GEAR UP/DOWN BOARD APPLY GREASE SC141 AT INNER & OUTER GEAR SLIDING PORTION WHEN FIX GEAR UP/ DOWN BOARD THE TWO LEVER MUST AT PARALLEL LINE AND POSITIONED AT TOP MAX SIDE AFTER ASSEMBLY GEAR UP/DOWN BOARD 2 – 27...
  • Page 33 CD-MPX870 SCREW TORQUE +0.5 kgf-cm ROTATE THE GEAR TO MOVE UP 111 GEAR UP AND DOWN BOARD BEFORE SCREW 2 – 28...
  • Page 34 CD-MPX870 AFTER ASSEMBLY TOP PLATE FIX THE FFC FFC4 AFTER PUSH, MAKE SURE SNAP PROPERLY 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-MPX870 CAUTION CORRECT 1. MAKE SURE NO PWB CHIP INSIDE SET .( BEFORE FIX MAKE SURE PWB IS FREE FROM DUST , GREASE & ETC ) INCORRECT 2 – 30...
  • Page 36 CD-MPX870 THE TWO SLOT MUST FREE FROM GREASE SC141 ASSEMBLY SEQUENCE APPLY GREASE SC141 BELOW THE MARKING 1. APPLY GREASE SC141 TO MAIN BASE FOR BOTH PORTION GREASE SC141 APPLICATION AREA ALL BOSS APPLY GREASE SC141 APPLY GREASE SC141 AT 3 HALF MOON...
  • Page 37 CD-MPX870 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 SC141 2 – 32...
  • Page 38 CD-MPX870 3.1 + 0.1 SHAFT X 3 DIM AFTER INSERTION APPLY SANKOL (SHS1001) MUST CONFIRM EVERYDAY SANKOL (SHS1001) APPLICATION AREA 109-2 APPLY GREASE AT THE SLIDING PORTION APPLY GREASE SC141 UP / DOWN HOLDER CHANGE TO NATURE COLOR 2 – 33...
  • Page 39 CD-MPX870 BEFORE MELT IT AFTER MELT IT ( MUST FLAT ) WHEN FITTING STABILIZER PLATE TO STABILIZER, ROTATE STABILIZER ANTI CLOCKWISE BY JIG STRICTLY CANNOT FIT USING HAND) AFTER ASSEMBLED TO HOLDER, STABILIZER ( BY HAND CANNOT X ) NEED TO BE CLEANED...
  • Page 40 CD-MPX870 APPLY GREASE SC141 MUST MAKE SURE SNAP PROPERLY BOTH SIDE ALL SURFACE MUST TOUCH INCORRECT CORRECT INCORRECT 2 – 35...
  • Page 41 CD-MPX870 NO GAP HAVE GAP CORRECT INCORRECT 2 – 36...

  • Page 42: Chapter 3. Mechanism Blocks

    CD-MPX870 CD-ES700/CD-ES77 CD-ES700/CD-ES77 Service Manual CD-ES700/CD-ES77 Market CHAPTER 3. MECHANISM BLOCKS [1] Caution on disassembly 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-MPX870 (H2)x1 Front Panel (M1)x4 f 3x10mm Tape Mechanism (H1)x6 3x10mm (M2)x1 Figure 4 Lug wire Nut (K2)x1 Front Panel Display PWB (K4)x6 Changer 2.6x10mm Mechanism Unit (K1)x1 Washer Figure 7 (K3)x1 (N1)x4 f 2.6x10mm CD Mechanism Game Input Figure 5...
  • Page 44 CD-MPX870 STEP REMOVAL PROCEDURE FIGURE Woofer 1. Front Panel....(A1) x1 2. Socket....(A2) x1 3. Screw.....(A3) x2 4. Screw.....(A4) x4 Tweeter 1. Screw.....(B1) x2 Super tweeter 1. Screw.....(C1) x2 Speaker Box (A3)x2 TWEETER (A2)x1 3x10mm (B1)x2 3x10mm LED PWB SUPER TWEETER...

  • Page 45: Removing And Reinstalling The Main Parts

    CD-MPX870 [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 CD-MPX870 2. CD MECHANISM SECTION Reduction gear C Perform steps 1, 2, 9, 10, 11 and 12 of the disassem- bly method to remove 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 pc.
  • Page 47 CD-MPX870 3.2. How to Remove the tray motor/main cam motor/5-Changer Motor PWB (See Fig. 1) 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 CD-MPX870 -MEMO- 3 – 7...
  • Page 49 CD-MPX870 DIAGRAMS CHAPTER 4. [1] Main Block diagrams CHASIS_GND TUNER FM_DET PACK TUN_SM NO USE UNIT R_CH RTUNSA007AWZZ L_CH CHASIS_GND CNP303 MOTOR DRIVER Q709~ Q711 SWITCHING TAPE MECHANISM JK690 ASS'Y VIDEO GAME Q703~ INPUT Q708 VIDEO SOLENOID DRIVER IC601 TAPE...

  • Page 50: Main Block Diagrams

    CD-MPX870 [2] Main Block diagrams CHASIS_GND TUNER FM_DET PACK TUN_SM NO USE UNIT R_CH RTUNSA007AWZZ L_CH CHASIS_GND CNP303 MOTOR DRIVER Q709~ Q711 TAPE MECHANISM JK690 ASS'Y VIDEO/GAME Q703~ INPUT Q708 VIDEO SOLENOID DRIVER JK691 IC601 VIDEO TAPE VIDEO LC75341 CNS601...
  • Page 51 CD-MPX870 FL701 FL DISPLAY JOG701 27 47 VOLUME 57 77 RX701 REMOTE SENSOR PHOTO Q713 IC701 VLOAD IXA101AW AVDD SYSTEM MICROCOMPUTER SW701-SW705 SW707-SW716 +B PROTECT 52 53 51 17 16 18 13 10 20 23 30 31 TO CD SECTION XL701 4.19 MHz...

  • Page 52: Chapter 5. Circuit Description

    CD-MPX870 CD-ES700/CD-ES77 CD-ES700/CD-ES77 Service Manual CD-ES700/CD-ES77 Market CHAPTER 5. CIRCUIT DISCRIPTION [1] 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...

  • Page 53: Voltage

    CD-MPX870 [2] Voltage IC701 IC 601 PIN VOLTAGE VOLTAGE VOLTAGE VOLTAGE VOLTAGE VOLTAGE 0.00 V 3.21 V 2.04 V 4.94 V 1.56 V 4.94 V 1.69 V 3.21 V 2.03 V 4.40 V 4.38 V 0.00 V 2.04 V 1.67 V 4.92 V...
  • Page 54 CD-MPX870 -MEMO- 5 – 3...

  • Page 55: Chapter 6. Circuit Schematics And Parts Layout

    CD-MPX870 CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS LAYOUT [1] Notes on schematic diagram Resistor: • The indicated voltage in each section is the one • measured by Digital Multimeter between such a To differentiate the units of resistors, such symbol section and the chassis with no signal given.

  • Page 56: Schematic Diagram

    CD-MPX870 [3] SCHEMATIC DIAGRAM Figure 6-2: MAIN SCHEMATIC DIAGRAM (1/2) 6 – 2...
  • Page 57 CD-MPX870 Figure 6-3: MAIN SCHEMATIC DIAGRAM (2/8) 6 – 3...
  • Page 58 CD-MPX870 Figure 6-4: POWER SCHEMATIC DIAGRAM (3/8) 6 – 4...
  • Page 59 CD-MPX870 LED702 Figure 6-5: POWER SCHEMATIC DIAGRAM (4/8) 6 – 5...
  • Page 60 CD-MPX870 TAPE MECHANISM PWB-G Figure 6-6: DISPLAY SCHEMATIC DIAGRAM (5/8) 6 – 6...
  • Page 61 CD-MPX870 Figure 6-7: DISPLAY SCHEMATIC DIAGRAM (6/8) 6 – 7...
  • Page 62 CD-MPX870 Figure 6-8: SCHEMATIC DIAGRAM (7/8) 6 – 8...
  • Page 63 CD-MPX870 Figure 6-9 :SCHEMATIC DIAGRAM (8/8) 6 – 9...

  • Page 64: Wiring Side Of Pwb

    CD-MPX870 [4] Wiring side of PWB TO DISPLAY PWB - B1 MAIN PWB-A1 CNP701A COLOR TABLE RD (R) BLUE B C E WHITE B C E BROWN B C E BLACK B C E B C E 1 2 3 4 Lead-free solder indication Lead-free solder is used in the MAIN PWB.
  • Page 65 CD-MPX870 TO TUNER PACK 2 4 6 8 10 1 3 5 7 9 11 E C B CNS971 E C B RED MARK M971(202-3) FAN MOTOR E C B 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Figure 6-11: WIRING SIDE OF MAIN PWB (TOP VIEW) (2/15) 6 –...
  • Page 66 CD-MPX870 MAIN PWB-A1 Lead-free solder indication Lead-free solder is used in the MAIN PWB. Refer to "Precautions for handling lead-free solder" for instructions and precautions. Figure 6-12: WIRING SIDE OF MAIN PWB (BOTTOM VIEW) (3/15) 6 – 12...
  • Page 67 CD-MPX870 Figure 6-13: WIRING SIDE OF MAIN PWB (BOTTOM VIEW) (4/15) 6 – 13...
  • Page 68 CD-MPX870 -MEMO- 6 – 14...
  • Page 69 CD-MPX870 Lead-free solder indication Lead-free solder is used in the POWER PWB. Refer to "Precautions for handling lead-free solder" for instructions and precautions. AC POWER SUPPLY CORD AC 120V, 60Hz COLOR TABLE BLACK WHITE BLUE FROM DISPLAY PWB-B1 Figure 6-14: WIRING SIDE OF POWER PWB (5/15)
  • Page 70 CD-MPX870 MAIN PWB CNP 701B FFC701 Lead-free solder indication Lead-free solder is used in the DISPLAY PWB. Refer to "Precautions for handling lead-free solder" for instructions and precautions. Figure 6-15: WIRING SIDE OF DISPLAY PWB (TOP VIEW) (6/15) 6 – 16...
  • Page 71 CD-MPX870 2 4 6 8 1 3 5 7 FFC702 6 5 4 3 2 CNP802 TAPE MECHA PWB POWER PWB-A2 Figure 6-16: WIRING SIDE OF DISPLAY PWB (TOP VIEW) (7/15) 6 – 17...
  • Page 72 CD-MPX870 Lead-free solder indication Lead-free solder is used in the DISPLAY PWB. Refer to "Precautions for handling lead-free solder" for instructions and precautions. Figure 6-17: WIRING SIDE OF DISPLAY PWB (BOTTOM VIEW) (8/15) 6 – 18...
  • Page 73 CD-MPX870 Figure 6-18: WIRING SIDE OF DISPLAY PWB (BOTTOM VIEW) (9/15) 6 – 19...
  • Page 74 CD-MPX870 FW 901 GAME INPUT PWB-B2 JK692 HEADPHONES JK690 VIDEO IN R-CH AUX/VIDEO L-CH LUG TERMINAL COLOR TABLE WHITE BLACK GAME INPUT PWB P " n i l f " Figure 6-19: WIRING SIDE OF GAME INPUT PWB (TOP VIEW) (10/15)
  • Page 75 CD-MPX870 GAME INPUT PWB P " n i l f " Figure 6-20: WIRING SIDE OF GAME INPUT PWB (BOTTOM VIEW) (11/15) 6 – 21...
  • Page 76 CD-MPX870 Figure 6-21: WIRING SIDE OF CD SERVO PWB (TOP VIEW) (12/15) 6 – 22...
  • Page 77 CD-MPX870 Figure 6-22: WIRING SIDE OF CD SERVO PWB (TOP VIEW) (13/15) 6 – 23...
  • Page 78 CD-MPX870 Lead-free solder is used in this CD SERVO PWB. Refer to "Precautions for handling lead-free solder" for instructions and precautions. The number are waveform number shown in page 5-1. Figure 6-23: WIRING SIDE OF CD SERVO PWB (BOTTOM VIEW) (14/15)
  • Page 79 CD-MPX870 TAPE MECHANISM TO DISPLAY PWB-B1 ASSEMBLY CNP702A TAPE MECHANISM PWB-G FFC702 Lead-free solder is used in this PWB. Refer to "Precautions for handling lead-free SOLENOID solder" for instructions and precautions. SOLENOID TAPE MOTOR TAPE 2 TAPE 1 RECORD/PLAYBACK PLAYBACK HEAD...

  • Page 80: Chapter 7. Flowchart

    CD-MPX870 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. When this section does not operate even after the above step is taken, check the follow- ing items.
  • Page 81 CD-MPX870 (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 82 CD-MPX870 (2) Focus-HF system check. Check the TE waveform at pin 16 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 15, 16 and 23 on IC1, and FFC1.
  • Page 83 CD-MPX870 (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. PDO0 The HF waveform is normal, but the TOC data cannot be read.

  • Page 84: Chapter 8. Others

    CD-MPX870 CHAPTER 8. OTHERS [1] Function table of IC IC1 VHiLC78690E-1: CD Servo (LC78690E) (1/2) Pin No. Terminal Name Input/Output Setting in Reset Function EFMIN Input INPUT RF signal input pin. RFOUT Output UNSTABLE RF signal output pin. Output UNSTABLE RF signal DC level detection.
  • Page 85 CD-MPX870 IC1 VHiLC78690E-1: CD Servo (LC78690E) (2/2) Pin No. Terminal Name Input/Output Setting in Reset Function CONT1 Input/Output INPUT General Purpose I/O pin 1 Controlled by command from the microproces- sor. Any of these that are unused must be CONT0...
  • Page 86 CD-MPX870 IC1 VHiLC78690E-1: CD Servo (LC78690E) 80 79 78 77 76 75 74 73 72 69 68 67 66 62 61 EFMIN LRSY DATACK RFOUT DATA PHLPF TEST1 STDATA STCK STREQ TEST0 LC78690E CONT0 RFMON CONT1 VREF CONT2 JITTC INTB1...
  • Page 87 CD-MPX870 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 88 CD-MPX870 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 89 CD-MPX870 IC601 VHiLC75341/-1: Audio Processor (LC75341) Pin No. Terminal Name Function 13-16 R1-4 Input signal pin. Pin No. Terminal Name Function RSEL0 Input selector output pin. Serial data and clock input pin for Volume + equalizer output pin control. RTRE Treble band filter comprising capaci- Chip enable pin.
  • Page 90 CD-MPX870 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 91: Fl Display

    CD-MPX870 [2] FL Display FL701 VVKNA12MM54-1 GRID ASSIGNMENT MP3 WMA TOTAL col2 Dot2 col1 Dot1 2G 3G 4G 5G 6G 7G h j k (1G) (2G~11G) ANODE CONNECTION FOLD TITLE-1 TITLE-2 TOTAL TITLE-3 PTYI SLEEP DAILY MEMORY X-BASS Dot1 Col1...
  • Page 92 CD-MPX870 -MEMO- 8 – 9...

  • Page 93: Parts Guide

    CD-MPX870 PARTS GUIDE MINI COMPONENT SYSTEM CD-MPX870 MODEL CD-MPX870 Mini Component System consisting of CD-MPX870 (main unit) and CP-MPX870 (speaker system). CONTENTS [9]OTHER CIRCUITRY PARTS [1]INTEGRATED CIRCUITS [10]CD MECHANISM PARTS [2]TRANSISTORS [11]CHANGER MECHANISM PARTS [3]DIODES [12]CABINET PARTS [4]VIBRATORS / CRYSTALS...
  • Page 94 CD-MPX870 PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [1] INTEGRATED CIRCUITS VHILC78690E-1 CD Servo,LC78690 VHILA6261//-1 Focus/Tracking/Spin/Sled Driver, LA6261 IC101 VHIAN7345K/-1 Playback and Record / Playback Amp.,AN7345K IC503 VHIKIA4558F-1 Power Amp,KIA4558F IC601 VHILC75341/-1 Audio Processor,LC75341 IC701 RH-IXA101AWZZ Micom IC IC851...
  • Page 95 CD-MPX870 PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [3] DIODES D860 VHD1SS119//-1 Silicon,D1SS119 D861 VHD1SS119//-1 Silicon,D1SS119 D862 VHD1SS119//-1 Silicon,D1SS119 D885 VHD1SS119//-1 Silicon,D1SS119 D905 VHD1SS119//-1 Silicon,D1SS119 D906 VHD1SS119//-1 Silicon,D1SS119 D907 VHD1SS119//-1 Silicon,D1SS119 D909 VHDDS1N404S-1 Silicon,DS1N404S D910 VHDDS1N404S-1 Silicon,DS1N404S D911 VHD1SS119//-1...
  • Page 96 CD-MPX870 PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [7] CAPACITORS VCEAZA1AW477M 470µF,10V,Electrolytic VCKYCY1EF473Z 0.047µF,25V VCKYCY1HB103K 0.01µF,50V VCKYCY1EF223Z 0.022µF,25V VCCCCY1HH101J 100p F (CH), 50V VCCCCY1HH101J 100p F (CH), 50V VCCCCY1HH101J 100p F (CH), 50V VCCCCY1HH101J 100p F (CH), 50V VCKYCY1EF223Z 0.022µF,25V...
  • Page 97 CD-MPX870 PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [7] CAPACITORS C694 VCKYPA1HB103K 0.01 µ F,50V C701 VCEAZA1HW105M 1 µ F,50V,Electrolytic C702 VCEAZA1AW227M 220 µ F,10V,Electrolytic C703 VCKYCY1EF223Z 0.022 µ F,25V C704 VCKYCY1EF223Z 0.022 µ F,25V C705 VCKYCY1EF473Z 0.047 µ F,25V...
  • Page 98 CD-MPX870 PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [8] RESISTORS JP10 VRS-CY1JB000J 0 ohms,Jumper,0.8x1.55mm,Green (MAIN PWB-A1) JP10 VRS-CY1JB000J 0 ohms,Jumper,0.8x1.55mm,Green (CD PWB) JP11 VRS-CY1JB000J 0 ohms,Jumper,0.8x1.55mm,Green (MAIN PWB-A1) JP11 VRS-CY1JB000J 0 ohms,Jumper,0.8x1.55mm,Green (CD PWB) JP601 VRS-CY1JB000J 0 ohms,Jumper,0.8x1.55mm,Green JP608 VRS-CY1JB000J 0 ohms,Jumper,0.8x1.55mm,Green...
  • Page 99 CD-MPX870 PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [8] RESISTORS VRD-ST2CD392J 3.9 kohms,1/6W VRS-CY1JB225J 2.2 Mohms,1/16W R101 VRS-CY1JB332J 3.3 kohms,1/16W R102 VRS-CY1JB332J 3.3 kohms,1/16W R103 VRS-CY1JB222J 2.2 kohms,1/16W R104 VRS-CY1JB222J 2.2 kohms,1/16W R105 VRS-CY1JB332J 3.3 kohms,1/16W R106 VRS-CY1JB332J 3.3 kohms,1/16W...
  • Page 100 CD-MPX870 PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [8] RESISTORS R708 VRS-CY1JB102J 1 kohms,1/16W R709 VRS-CY1JB102J 1 kohms,1/16W R710 VRS-CY1JB102J 1 kohms,1/16W R711 VRS-CY1JB102J 1 kohms,1/16W R712 VRS-CY1JB102J 1 kohms,1/16W R713 VRS-CY1JB182J 1.8 kohms,1/16W R714 VRS-CY1JB102J 1 kohms,1/16W R715...
  • Page 101 CD-MPX870 PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [8] RESISTORS R905 VRS-CY1JB561J 560 ohms,1/16W R906 VRS-CY1JB561J 560 ohms,1/16W R907 VRS-CY1JB563J 56 kohms,1/16W R908 VRS-CY1JB102J 1 kohms,1/16W R909 VRS-CY1JB333J 33 kohms,1/16W R910 VRD-ST2CD102J 1 kohms,1/6W R911 VRS-CY1JB563J 56 kohms,1/16W R912...
  • Page 102 CD-MPX870 PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [9] OTHER CIRCUITRY PARTS CNP4A QCNCWZO11AWZZ Socket,11Pin CNP7 QCNCWZY14AWZZ Socket,14Pin CNP101 QCNCM705CAFZZ Plug,3Pin CNP102 QCNCM705GAFZZ Plug,7Pin CNP303 QCNCWZX11AWZZ Socket,11Pin CNP603 92LCONE5P53253 Plug,5Pin CNP702 QCNCWZY07AWZZ Socket,7Pin CNP703 QCNCWZY14AWZZ Socket,14Pin CNP707 QCNCM704BAFZZ Plug,2Pin (Use in LED PWB-D) Use 2 pcs...
  • Page 103 CD-MPX870 [10] CD MECHANISM PARTS...
  • Page 104 CD-MPX870 PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [10] CD MECHANISM PARTS Gear,Middle NGERH0011AWZZ NGERH0012AWZZ Gear,Drive Shaft,Guide NSFTM0020AWFW Cushion 92LMCUSN1524A Pickup Unit Ass'y 92LHPC1LVASY Pickup Unit (Not Replacement Item) 306- 1 ---------------------- 306- 2 NGERR0043AFZZ Gear,Rack 306- 3 MSPRC0961AFZZ...
  • Page 105 CD-MPX870 [11] CHANGER MECHANISM PARTS...
  • Page 106 CD-MPX870 PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [11] CHANGER MECHANISM PARTS GCOVA1513AWZZ Disc Tray GCOVA1514AWZZ Guide Tray Outer Tray Guide LANGG0008AWZZ Inner Tray Guide LANGG0009AWZZ Main Base LCHSM0194AWZZ CD Mechanism Holder LHLDZ9017AWZZ LPLTP0014AWZZ Top Plate LPLTP0015AWZZ Gear Plate...
  • Page 107 CD-MPX870 [12] CABINET PARTS Tuner Pack...
  • Page 108 CD-MPX870 PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [12] CABINET PARTS CCABA6570AW01 Front Panel Ass'y 201-1 ----------------------- Front Panel 201-2 GCOVAA140AWSA Cover, Cassette [Tape 1] 201-3 GCOVAA141AWSA Cover, Cassette [Tape 2] 201-4 GDORF0127AWSA Holder, Cassette [Tape 1] 201-5 GDORF0128AWSA...
  • Page 109 CD-MPX870 [13] SPEAKERS BOX PARTS TWEETER SP3(L-CH) SP4(R-CH) SUPER TWEETER C1,2 Capacitor TWEETER SP3(L-CH) SP4(R-CH) C1,2 SUPER TWEETER Capacitor 2.7uF 250V WOOFER SP1(L-CH) WOOFER SP2(R-CH) SP1(L-CH) SP2(R-CH) LED PWB-D LED702(L-CH) D752(L-CH) LED703(R-CH) D752A(R-CH) SDPB40F2A 1N4148H R752A(L-CH) R752B(R-CH) 908x2 LED PWB-D...
  • Page 110 CD-MPX870 PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [13] SPEAKERS BOX PARTS GBOXSA125AW01 Wooden Box Ass'y CPNLSA055AW01 Front Panel Ass'y TSPC-A635AWZZ Label, Specification LHLDZA130AWM1 Super Tweeter Ass'y PCUSGA020AWZZ Cushion, Foot XEBY730P10000 Screw, M3 x10mm XEPY740P16000 Screw, M4 X16mm XESY730P10000...
  • Page 111 CD-MPX870...
  • Page 112 CD-MPX870 A0606...

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