Sharp CD-MPX870 Service Manual Download

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CD-MPX870

NO.

PARTS CODE

PRICE

RANK

NEW

MARK

PART

RANK

DESCRIPTION

[12] CABINET PARTS

201

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

Holder, Cassette [Tape 2]

201-6

JKNBZA184AWSA

Button, Disc Number

201-7

MLiF-A001AWZZ

Damper

201-8

JKNBZA186AWSA

Button, Operation

201-9

JKNBZA185AWSA

Button, Function & Power

201-10

GCOVA1364AWSA

Cover, Timer

201-11

HBDGB1007AWSA

Badge, SHARP

201-12

MSPRDA002AWFJ

Spring, Cassette [Tape 1]

201-13

MSPRDA003AWFJ

Spring, Cassette [Tape 2]

201-14

HDECQA246AWSA

Volume Knob Ring

201-15

HDECQA274AWSA

Decoration Panel, A

201-16

HDECQA289AWSA

Decoration Panel, B

201-17

MLOKC0014AWZZ

Lock, Cassette [Tape 1]

201-18

MLOKC0015AWZZ

Lock, Cassette [Tape 2]

201-19

MSPRD0196AWFJ

Spring, Cassette Lock [Tape 1]

201-20

MSPRD0197AWFJ

Spring, Cassette Lock [Tape 2]

202

GCAB-A036AWSA

Top Cabinet

203

GiTASA142AWSA

Side Panel, Left

204

GiTASA143AWSA

Side Panel, Right

205

GiTARA376AWSA

Rear Panel

206

GCOVAA139AWSA

Disc Tray Cover

207

LCHSZA011AWSA

Chassis, Changer Unit

208

92LNBAND1318A

Nylon Band, 80mm

209

KMECBA012AWZZ

Tape Mechanism Ass'y

210

HDECQ1110AWSA

Panel, Edge Light

211

QCNWN1860AWZZ

Lug Wire

212

JKNBKA022AWSB

Knob, Volume

213

92LCSPR1431C

Spring, Ring

214

LCHSMA044AWFW

Chassis, Main

215

LBND-1011AWZZ

Nylon Band

216

QACCD0032AWZZ

AC Power Supply Cord

217

LBSHC0005AWZZ

Bushing, AC Power Supply Cord

218

NFANP0001AWZZ

Rotary, Fan

219

LANGK0437AWFW

Bracket, Fan Support A

220

92LFSHOLD1652T

Holder, Fuse

221

PRDARA018AWFW

Heat Sink, Main

222

LHLDZ9024AWZZ

Holder, FL Display

223

LANGT0042AWFW

Bracket, PWB support

224

PCUSG0022AWZZ

Cushion, Leg

226

-----------------------

Nut (Not Replacement Item)

227

-----------------------

Washer (Not Replacement Item)

601

XJBY730P10000

Screw, M3 X10mm

602

XEBY730P10000

Screw, M3 X10mm

603

LX-EZ0005AWF7

Screw, M2.6 X10mm

604

XEBY726P10000

Screw, M2.6 X10mm

605

XESY730P10000

Screw, M3 X10mm

606

XJSY730P08000

Screw, M3 X8mm

607

LX-EZ0010AWF7

Screw, Special

608

XHBY740P08000

Screw, M4 X8mm

609

XBBY720P04000

Screw, M2 X4mm

610

LX-JZ0010AFF7

Screw, M3 X10mm

611

XEBY730P12000

Screw, M3 X12mm

612

XHBY730P06000

Screw, M3 X6mm

613

LX-JZ0037AWF7

Screw, M3 X18mm

614

LX-JZ0044AWF8

Screw, M3 X10mm

615

LX-JZ0036AWF7

Screw, M3 X12mm

M901

RMOTVA015AWZZ

Motor, Air Cooling Fan

Summary of Contents for CD-MPX870

Page 1: ... 1 2 CHAPTER 2 ADJUSTMENTS 1 Mechanism section 2 1 2 Test mode 2 2 3 CD section 2 4 4 CD Changer mechanism section 2 5 CHAPTER 3 MECHANISM BLOCKS 1 Caution on disassembly 3 1 2 Removing and reinstalling the main parts 3 4 CHAPTER 4 DIAGRAMS 1 CD Block diagrams 4 1 2 Main Block diagrams 4 2 CHAPTER 5 CIRCUIT DESCRIPTION 1 Waveforms of CD circuit 5 1 2 Voltage 5 2 CHAPTER 6 CIRCUIT SCHEMATICS AND PA...

Page 2: ...um heat resistance temperature of parts may be exceeded remove the bit from the PWB as soon as you confirm the steady soldering condition Lead free solder contains more tin and the end of the soldering bit may be easily corrected Make sure to turn on and off the power of the bit as required If a different type of solder stays on the tip of the soldering bit it is alloyed with lead free solder Clea...

Page 3: ... W 10 T H D RMS 240 W 120 W 120 W 0 9 T H D Output terminals Speakers 6 ohms Headphones 16 50 ohms recommended 32 ohms Video output 1Vp p Input terminals Game Auxiliary audio signal 500 mV 47 k ohms Game Video 1Vp p CD player Tuner Type 5 disc multi play compact disc player Signal readout Non contact 3 beam semiconductor laser pickup D A converter 1 bit D A converter Frequency response 20 20 000 H...

Page 4: ...ber Indicators 2 MP3 WMA Folder Indicator 3 MP3 WMA Title Indicators 4 MP3 Indicator 5 WMA Indicator 6 Sleep Indicator 7 Timer Play Indicator 8 Timer Recording Indicator 9 Tape 2 Record Indicator 10 MP3 WMA Total Indicator 11 Daily Timer Indicator 12 FM Stereo Mode Indicator 13 FM Stereo Receiving Indicator 14 Tape Play Indicator 15 Memory Indicator 16 Extra Bass Indicator 17 Disc Repeat Play Indi...

Page 5: ...top Button 16 Tape Stop Button 17 Memory Button 18 Disc Pause Button 19 Disc Play or Repeat Button 20 Tape Play Button 21 Tape 2 Record Pause Button 22 Tuning Up Cursor Up Button 23 Disc Track Up or Fast Forward Tape 2 Fast Forward Tuner Preset Up Time Up Cursor Right Button 24 Disc Track Down or Fast Reverse Tape 2 Rewind Tuner Preset Down Time Down Cursor Left Button 25 Tuning Down Cursor Down B...

Page 6: ...ue Play TW 2111 Tape 1 Over 80 g Tape 2 Over 80 g Torque Meter Specified Value Tape 1 Tape 2 Play TW 2111 30 to 80 g cm 30 to 80 g cm Fast forward TW 2231 70 to 180 g cm 70 to 180 g cm Test Tape Adjust ing Point Specified Value Instrument Connection Normal speed MTT 111 Variable Resistor in motor 3 000 30 Hz Speaker Speaker Ter minal Load resistance 6 ohms TAPE MECHANISM Tape Motor Variable Resist...

Page 7: ...o TOC IL Do normal play When these following key is input into PLAY key track num ber can be appoint directly MEMORY key input 1 key Track 4 2 key Track 9 3 key Track 15 Adjustment result automatically will display as below for each 2 sec a FOF_XXXX b TOF_XXXX c TBAL_XX d TGAN_XX f FGAN_XX g RFLS_XX STOP key input STOP explanation a Focus off set FOF_XXXX b Tracking off set TOF_XXXX c Tracking bal...

Page 8: ...ecific point MEMORY key input Adjustment result automatically will display as below for each 2 sec a FOF_XXXX b TOF_XXXX c TBAL_XX d TGAN_XX f FGAN_XX g RFLS_XX STOP key input STOP explanation a Focus off set FOF_XXXX b Tracking off set TOF_XXXX c Tracking balance TBAL_XX d Tracking Gain TGAN_XX f Focus Gain FGAN_XX g RF level shift RFLS_XX VOL Last memory P GEQ FLAT X BASS OFF To cancel Power OFF...

Page 9: ...e pressing down the button and the button press the GAME VIDEO button The Micro Computer version number will be displayed as CM 3 Press button until WAIT FINISHED appears 4 Unplug the AC cord and the unit is ready for transporting Error Explanation 10 CAM error Can t detect CAM switch when CAM is moving 11 When it detect cam operation error during initialize pro cess 20 TRAY error Can t detect TRA...

Page 10: ...CD MPX870 2 5 4 CD Changer mechanism section All numbers in the drawing correspond to those in parts guide CHANGER MECHANISM PARTS 140 141 HALF GEAR MUST BE ARRANGED AS SHOWN 1 ...

Page 11: ...CD MPX870 2 6 2 139 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 ...

Page 12: ...CD MPX870 2 7 APPLY GREASE SC141 PULL THE LEVER UNITIL REACH THE ARROW MARK 143 112 3 ...

Page 13: ...CD MPX870 2 8 FIGURE 1 FIGURE 2 APPLY GREASE SC141 SLOT CLAMP SWITCH ARM INSIDE BASE SLOT HALF GEAR MUST BE ARRANGED AS SHOWN 152 142 118 4 ...

Page 14: ...F GEAR FOLLOW MARKING REFER TO GRAY AREA NO NEED TO APPLY GREASE AT BOTTOM SIDE CORRECT BLACK MARK FIGURE 1 INCORRECT IF DIRECTION IS OTHER THAN DIRECTION SHOWN IN FIGURE 1 IT IS INCORRECT APPLY GREASE SC141 AT TOP SIDE OF GEAR FOLLOW MARKING REFER TO GRAY AREA ...

Page 15: ...CD MPX870 2 10 APPLY GREASE SC141 AT HALF GEAR AREA ROTATE CLOCKWISE UNTIL REACH HERE MAXIMUM 6 129 ...

Page 16: ...CD MPX870 2 11 151 150 149 7 ...

Page 17: ...CD MPX870 2 12 124 131 GREASE SC141 APPLICATION LENGTH GREASE APPLICATION PORTION THE SHOWN AREA MUST FREE FROM GREASE CORRECT INCORRECT SHOWN HOLE MUST FACING ARROW DIRECTION 8 ...

Page 18: ...CD MPX870 2 13 TR RE JOINT GEAR C APPLY GREASE SC141 AT BOTTOM SIDE ONLY APPLY GREASE SC141 ONLY AT TOP SIDE GEAR MUST BE FIXED ACCORDINGLY TO THE HOLE S 138 126 125 9 ...

Page 19: ...CD MPX870 2 14 10 148 147 146 145 ...

Page 20: ...CD MPX870 2 15 APPLY GREASE SC141 WHEN FIXING ITEM 144 MUST FOLLOW AS SHOWN 121 144 130 11 ...

Page 21: ...CD MPX870 2 16 FIGURE 1 FIGURE 3 FIGURE 2 APPLY GREASE SC141 APPLY GREASE SC141 117 12 ...

Page 22: ...D MPX870 2 17 ITEM 133 134 MUST APPLY GREASE SC141 ON TOP SIDE GEAR ONLY CORRECT INCORRECT TOP VIEW AFTER BEING ASSEMBLED IT IS INCORRECT TO FIX IT IN REVERSED DIRECTION GEAR 112 GEAR 112 134 133 132 13 ...

Page 23: ...ORE 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 A B APPLY GREASE SC141 CONFIRM WHETHER FIXED PROPELY OR NOT 108 803 x6 14 2 kgf cm 0 5 0 ...

Page 24: ...CD MPX870 2 19 APPLY GREASE SC141 BEHIND THE LEVER NEED TO APPLY GREASE SC141 PULL IT THEN LEVER WILL MOVE IN 113 15 ...

Page 25: ...CD MPX870 2 20 APPLY GREASE SC141 AT BOSS APPLY GREASE SC141 APPLY GREASE SC141 BEFORE FIX SPRING MUST BE ARRANGED UNDER THE HOOK CORRECT LR JOINT LEV LR JOINT LEV BOARD R BOARD R INCORRECT 123 115 16 ...

Page 26: ...LY GREASE SC141 IT IS INCORRECT IF ASSEMBLED IN A REVERSED DIRECTION BIG SLOT MUST FACING OUT WHEN FIX AND AFTER FIXED TO BASE CHASSIS AFTER ASSEMBLY CONFIRM WITH FREE DROP TEST GEAR POSITION DURING FIXING 103 137 136 17 ...

Page 27: ...LED IN A REVERSED DIRECTION WHEN FIX AND AFTER FIXED TO BASE CHASSIS AFTER ASSEMBLY CONFIRM WITH FREE DROP TEST APPLY GREASE SC141 BIG SLOT MUST FACING OUT GEAR POSITION DURING FIXING CONFIRM BOTH GEARS SIT PROPERLY AND LOCKED 18 104 135 136 ...

Page 28: ...FIRM WHETHER LEVER GO INSIDE THE HOLE OR NOT IT IS INCORRECT IF THE LEVER HOLD DOES NOT ENTER THE HOLE IT IS CORRECT IF THE LEVER HOLD ENTERS THE HOLE 19 ALL OF THIS 135 AND 137 GEAR FIX TOGETHER WITH 119 AND 120 LEVER MOVE TOGETHER BIGGER SLOT FACING OUT 119 135 BIGGER SLOT FACING OUT 120 137 ...

Page 29: ...CD MPX870 2 24 20 110 BIG SLOT FACING OUT ...

Page 30: ... THE LEVER ACCORDING TO ARROW DIRECTION THEN FIX WHEN FIXING MAIN BASE ASSEMBLY FOLLOW ACCORDING TO PICTURE 1 PICTURE 1 PICTURE 2 PICTURE 3 CORRECT INCORRECT INCORRECT MAKE SURE MECHA HOLDER SHAFT FIX PROPERLY TO LEVER 21 ...

Page 31: ... SHS1001 INSIDE THE SLOT OTHER SHOWN PORTION APPLY SANKOL SHS1001 AT TRAY SLIDING PORTION FIX TRAY NO 1 FIRST THAN FOLLOW OTHER COSMO GUIDE TRAY HAVE MARKING AS SHOWN 101 102 22 APPLY SANKOL SHS1001 AT BACK PORTION APPLY SANKOL SHS1001 APPLY SANKOL SHS1001 ...

Page 32: ... 27 AFTER ASSEMBLY 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 111 23 GEAR UP DOWN BOARD ...

Page 33: ...CD MPX870 2 28 804 24 SCREW TORQUE ROTATE THE GEAR TO MOVE UP 111 GEAR UP AND DOWN BOARD BEFORE SCREW 3 kgf cm 0 5 0 ...

Page 34: ...P PLATE FIX THE FFC AFTER FIX PUSH FOLLOW ARROW DIRECTION AFTER PUSH MAKE SURE SNAP PROPERLY BACK PORTION PRESS IN SLOT IN BEFORE LOCK BEFORE LOCK BEFORE LOCK AFTER LOCK AFTER LOCK AFTER LOCK MUST CONFIRM MUST CONFIRM FFC4 122 107 25 ...

Page 35: ...CD MPX870 2 30 803 26 CORRECT INCORRECT CAUTION 1 MAKE SURE NO PWB CHIP INSIDE SET BEFORE FIX MAKE SURE PWB IS FREE FROM DUST GREASE ETC ...

Page 36: ...IN BASE GREASE SC141 APPLICATION AREA ALL BOSS APPLY GREASE SC141 APPLY GREASE SC141 1 RIB ONLY APPLY GREASE SC141 APPLY GREASE SC141 APPLY GREASE SC141 AT 3 HALF MOON CAUTION TRAY SLIDING AREA MUST FREE FROM GREASE SC141 APPLY GREASE SC141 APPLY GREASE SC141 APPLY GREASE SC141 AT BOTH SLOT APPLY GREASE SC141 INSIDE SLOT APPLY GREASE SC141 AT WALL 105 27 ...

Page 37: ...CREWING HOLE 13 8 0 2 0 12 2 APPLY GREASE SC141 MUST HAVE GAP REFERENCE ONLY MOTOR GEAR HEIGHT FROM MAIN BASE 12 2 1 5 0 5 0 SCREW TORQUE AFTER SCREW MOTOR CONFIRM THE ARRANGEMENT AS IN FIGURE 2 FIGURE 2 M1 2 801 28 0 1 0 1 ...

Page 38: ...LY SANKOL SHS1001 3 1 0 1 SHAFT X 3 DIM AFTER INSERTION MUST CONFIRM EVERYDAY SANKOL SHS1001 APPLICATION AREA APPLY GREASE SC141 APPLY GREASE AT THE SLIDING PORTION UP DOWN HOLDER CHANGE TO NATURE COLOR 109 2 29 114 116 ...

Page 39: ...T MUST FLAT WHEN FITTING STABILIZER PLATE TO STABILIZER ROTATE STABILIZER ANTI CLOCKWISE BY JIG STRICTLY CANNOT FIT USING HAND BY HAND CANNOT X AFTER ASSEMBLED TO HOLDER STABILIZER NEED TO BE CLEANED WITH ALCOHOL DISC TOUCHING SURFACE BELOW 30 ...

Page 40: ...CD MPX870 2 35 GAP INCORRECT CORRECT INCORRECT APPLY GREASE SC141 MUST MAKE SURE SNAP PROPERLY BOTH SIDE ALL SURFACE MUST TOUCH 106 31 ...

Page 41: ...CD MPX870 2 36 NO GAP HAVE GAP CORRECT INCORRECT 32 ...

Page 42: ...Side Panel Left Right 2 Screw B1 x8 1 3 CD Changer unit 1 Hook C1 x2 2 Socket C2 x1 3 Flat Cable C3 x1 2 4 Rear Panel with Fan motor 1 Screw D1 x9 2 5 Front Panel 1 Screw E1 x3 2 Flat Cable E2 x1 3 Socket E3 x1 4 Hook E4 x2 2 3 2 2 3 6 Main PWB 1 Screw F1 x3 2 Socket F2 x4 2 Socket L3 x1 2 Flat Cable H2 x1 2 Flat Cable L2 x2 2 3 7 Power PWB 1 Screw G1 x4 3 8 Tape Mechanism 1 Screw H1 x6 4 9 Game I...

Page 43: ...3x10mm M2 x1 Changer Mechanism Unit N1 x4 f 2 6x10mm Changer Mechanism Unit CD Mechanism Figure 6 Figure 8 Figure 7 Figure 4 3x10mm H1 x6 Mechanism Tape H2 x1 Lug wire Front Panel O Figure 5 Game Input PWB J1 x2 K1 x1 K4 x6 2 6x10mm Special Display PWB Washer K3 x1 Nut K2 x1 Front Panel O O ...

Page 44: ...anel A1 x1 9 2 Tweeter 1 Screw B1 x2 1 Screw C1 x2 4 Screw A4 x4 3 Screw A3 x2 2 Socket A2 x1 3 Super tweeter 3x10mm 3x10mm 4x16mm WOOFER A4 x4 Front Panel Figure 9 C1 x2 B1 x2 Speaker Box A1 x1 SUPER TWEETER TWEETER O O O Screwdriver 3x10mm LED PWB A3 x2 A2 x1 O ...

Page 45: ...oller C1 x 1 pc in the direction of the arrow B Note When installing the pinch roller pay attention to the spring mounting position Figure 3 1 4 How to remove the belt TAPE 2 See Fig 4 1 Remove the main belt D1 x 1 pc from the motor side 2 Remove the FF REW belt D2 x 1 pc 1 5 How to remove the belt TAPE 1 See Fig 4 1 Remove the main belt E1 x 1 pc from the motor side 2 Remove the FF REW belt E2 x ...

Page 46: ...e as shown in Figure 3 Until disc tray is at stock position then rotate further to eject the disc tray so that CD can be removed from the tray Figure 2 Figure 3 2 In another case if CD mechanism is at tray No 1 play position and to remove CD located in tray No 3 the procedure is as follows If the gear up down board is located at tray No 1 position then rotate gear clock wise until it at stock posi...

Page 47: ...n cam motor 5 Changer Motor PWB Figure 1 NOTE There are 2 more screws tighten the motors at the bottom of main chassis Before performing procedure 1 above disc stop spring top plate sear up down board and trays must be removed then only the 2 screws can be untighten 5 Changer Motor PWB Tray Motor Changer Mechanism Unit Main Cam Motor A1 X2 φ2x10mm ...

Page 48: ...CD MPX870 3 7 MEMO ...

Page 49: ...4 Q112 Q110 SWITCHING Q109 OSC BIAS Q111 L103 Q105 Q106 REC P B HEAD TAPE 2 P B HEAD TAPE 1 R CH L CH IC601 LC75341 AUDIO PROCESSOR TUNER PACK UNIT RTUNSA007AWZZ B4 R L REC R L L NF R NF ALC R REC L REC R NF L NF SWITCHING L T2 R T2 R T1 L T1 4 22 3 24 2 1 8 18 17 11 16 3 15 10 9 7 23 14 12 13 19 7 18 10 8 17 13 21 4 2 24 23 9 16 12 1 P B REC T1 T2 21 R CH L CH TAPE MECHANISM ASS Y MOTOR DRIVER SO...

Page 50: ...Q112 Q110 SWITCHING Q109 OSC BIAS Q111 L103 Q105 Q106 REC P B HEAD TAPE 2 P B HEAD TAPE 1 R CH L CH IC601 LC75341 AUDIO PROCESSOR TUNER PACK UNIT RTUNSA007AWZZ B4 R L REC R L L NF R NF ALC R REC L REC R NF L NF SWITCHING L T2 R T2 R T1 L T1 4 22 3 24 2 1 8 18 17 11 16 3 15 10 9 7 23 14 12 13 19 7 18 10 8 17 13 21 4 2 24 23 9 16 12 1 P B REC T1 T2 21 R CH L CH TAPE MECHANISM ASS Y MOTOR DRIVER SOLE...

Page 51: ...D907 2A 125V F803 2A 125V F804 5A 125V F805 F801 5A 125V F802 5A 125V L OUT R OUT K L C 4 19 MHz RESET L CH R CH AC POWER SUPPLY CORD REC PLAY VLOAD T E S E R Y A L P C E R 2 T 1 T S A I B 1 F 1 F 2 F 2 F B5 B5 B5 B5 D D V D D V Y L R _ P S D D V SP DET E C I D O D XL701 BIAS T1 T2 AVDD PHOTO SW707 SW716 SW701 SW705 KEY SECTION TO CD T F IC701 IXA101AW SYSTEM MICROCOMPUTER FL DISPLAY FL701 51 50 2...

Page 52: ...Main 100 K Zoom 2 K Mode NORMAL Type EDGE CH2 Delay 2 924 ms Hold off 0 2 µs CH3 0 00 V CH4 0 00 V BW FULL Trigger Filter Offset 1 IC1 22 5 IC1 25 Vp p 1 0 V 1 3 V 0 5 mV div 0 5 µsec div 4 IC1 2 T FDO TE Stopped CH1 500 mV DC 10 1 CH2 10 V DC 10 1 CH3 1 V DC 10 1 500 ms div 500 ms div NORM 20 kS s 1 2 3 Record Length Smoothing ON CH1 0 000 V CH2 0 0 V Main 100 K Zoom 2 K Mode AUTO Type EDGE CH1 D...

Page 53: ... V 29 08 V 7 4 99 7 57 7 8 0 00 V 0 00 V 0 00 V 0 00 V 0 00 V 0 00 V 0 00 V 0 00 V 0 00 V 0 00 V 0 00 V 0 00 V 0 00 V 0 00 V 0 00 V 0 00 V 0 00 V 0 00 V 0 00 V 0 00 V 0 00 V 0 00 V 0 00 V 0 00 V 0 00 V 0 00 V 0 00 V 0 00 V 0 00 V 58 8 4 96 8 58 8 9 4 87 V 4 87 V 4 87 V 59 9 4 96 9 59 9 10 60 10 4 99 10 60 10 11 61 11 4 96 11 61 11 12 62 12 4 96 12 62 12 13 63 13 4 96 13 63 13 14 64 14 4 96 14 64 1...

Page 54: ...CD MPX870 5 3 MEMO ...

Page 55: ...ereo 2 In the main section a tape is being played back 3 In the deck section a tape is being played back indicates the record state 4 In the power section a tape is being played back 5 In the CD section the CD is stopped Parts marked with are impor tant for maintaining the safety of the set Be sure to replace these parts with specified ones for maintain ing the safety and performance of the set 2 ...

Page 56: ...CD MPX870 6 2 3 SCHEMATIC DIAGRAM Figure 6 2 MAIN SCHEMATIC DIAGRAM 1 2 TO CD SERVO ...

Page 57: ...CD MPX870 6 3 Figure 6 3 MAIN SCHEMATIC DIAGRAM 2 8 ...

Page 58: ...CD MPX870 6 4 Figure 6 4 POWER SCHEMATIC DIAGRAM 3 8 ...

Page 59: ...CD MPX870 6 5 Figure 6 5 POWER SCHEMATIC DIAGRAM 4 8 P LED702 ...

Page 60: ...CD MPX870 6 6 Figure 6 6 DISPLAY SCHEMATIC DIAGRAM 5 8 TAPE MECHANISM PWB G ...

Page 61: ...CD MPX870 6 7 Figure 6 7 DISPLAY SCHEMATIC DIAGRAM 6 8 ...

Page 62: ...CD MPX870 6 8 Figure 6 8 SCHEMATIC DIAGRAM 7 8 ...

Page 63: ...CD MPX870 6 9 Figure 6 9 SCHEMATIC DIAGRAM 8 8 ...

Page 64: ...2 3 4 2 3 4 5 6 7 BL WH BL WH BL WH BL WH BL RD 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 TO CD SERVO PWB C FROM TAPE 1 PLATBACK HEAD FROM TAPE 2 RECORD PLAYBACK HEAD CNP3 MAIN PWB A1 TO DISPLAY PWB B1 CNP701A RD R BL WH BK RED BLUE WHITE BLACK BR BROWN COLOR TABLE TO POWER PWB A2 FROM GA...

Page 65: ... B E C B E C B E C B SO901 SPEAKER TERMINAL 1 2 JK691 RD BK BK WH WH CNS603 B I 6 0 3 VIDEO OUT FROM GAME INPUT PWB B2 RED MARK CNS971 M971 202 3 FAN MOTOR 1 3 5 7 9 11 2 4 6 8 10 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 TO TUNER PACK ...

Page 66: ...G SIDE OF MAIN PWB BOTTOM VIEW 3 15 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 7 8 9 10 11 12 13 14 15 14 17 18 MAIN PWB A1 ...

Page 67: ...CD MPX870 6 13 Figure 6 13 WIRING SIDE OF MAIN PWB BOTTOM VIEW 4 15 1 1 2 3 4 5 6 7 7 8 9 10 11 ...

Page 68: ...CD MPX870 6 14 MEMO ...

Page 69: ...ree solder indication Lead free solder is used in the POWER PWB Refer to Precautions for handling lead free solder for instructions and precautions B C E E C B WH BK AC POWER SUPPLY CORD AC 120V 60Hz FROM DISPLAY PWB B1 COLOR TABLE BK BLACK WH WHITE RD RED BL BLUE ...

Page 70: ... TOP VIEW 6 15 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 1 20 FFC701 CNP 701B TO MAIN PWB 1 3 5 7 9 2 4 6 8 10 12 14 16 18 20 11 13 15 17 19 ...

Page 71: ... SIDE OF DISPLAY PWB TOP VIEW 7 15 3 1 1 1 9 7 5 3 1 4 1 2 1 0 1 8 6 4 2 7 P N C TO CD SERVO PWB C 14 1 6 5 4 3 2 1 CNP802 D R R G L Y R G L Y R G TO POWER PWB A2 1 3 5 7 9 2 4 6 8 1 TO TAPE MECHA PWB 9 FFC702 FFC703 E C B E C B E C B ...

Page 72: ...18 Figure 6 17 WIRING SIDE OF DISPLAY PWB BOTTOM VIEW 8 15 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 ...

Page 73: ...CD MPX870 6 19 Figure 6 18 WIRING SIDE OF DISPLAY PWB BOTTOM VIEW 9 15 ...

Page 74: ... LUG TERMINAL TO MAIN PWB A1 JK692 HEADPHONES JK690 VIDEO IN n o i t a c i d n i r e d l o s e e r f d a e L GAME INPUT PWB e h t n i d e s u s i r e d l o s e e r f d a e L s n o i t c u r t s n i r o f r e d l o s e e r f d a e l g n i l d n a h r o f s n o i t u a c e r P o t r e f e R s n o i t u a c e r p d n a WTM901 GAME INPUT PWB B2 COLOR TABLE BK BLACK WH WHITE RD RED ...

Page 75: ...IEW 11 15 n o i t a c i d n i r e d l o s e e r f d a e L GAME INPUT PWB e h t n i d e s u s i r e d l o s e e r f d a e L s n o i t c u r t s n i r o f r e d l o s e e r f d a e l g n i l d n a h r o f s n o i t u a c e r P o t r e f e R s n o i t u a c e r p d n a ...

Page 76: ...CD MPX870 6 22 Figure 6 21 WIRING SIDE OF CD SERVO PWB TOP VIEW 12 15 ...

Page 77: ...CD MPX870 6 23 Figure 6 22 WIRING SIDE OF CD SERVO PWB TOP VIEW 13 15 ...

Page 78: ...RVO PWB BOTTOM VIEW 14 15 Lead free solder is used in this CD SERVO PWB Refer to Precautions for handling lead free solder for instructions and precautions 2 1 4 5 7 6 3 The number 1 to 7 are waveform number shown in page 5 1 1 20 21 60 80 41 40 61 ...

Page 79: ...AD TAPE 1 PLAYBACK HEAD WH BK GR GR BK YL WH RD BK WH RD GR 1 2 SW TAPE MOTOR SOLENOID COLOR TABLE RD R RED WH WHITE BK BLACK TAPE MECHANISM PWB G SW SOLENOID SW TAPE MECHANISM ASSEMBLY 1 2 3 4 5 6 7 1 7 CNP702A TO DISPLAY PWB B1 1 2 3 4 5 6 7 Lead free solder is used in this PWB Refer to Precautions for handling lead free solder for instructions and precautions YL YELLOW GR GREEN ...

Page 80: ... Spin system check 4 PLL system check 5 Others Parts code 1 CD optical pickup Lens cleaner disc UDSKA0004AFZZ HOW TO USE CAUTION Cleaning fluid Cleaner disc Using the brush in the cleaner cap apply 1 or 2 drops of the cleaning fluid to the brush on the CD cleaner disc which has the mark next to it Place the CD cleaner disc onto the CD disc tray with the brush side down then press the play button Y...

Page 81: ...1 No Check the focus peripheral circuit Yes 3 Is the laser lit No Check the laser diode driver Q1 peripheral circuit Yes 4 Is the turntable rotating No Spindle motor NM1 When a disc is loaded start playback operation 1 Is focus servo activated Waveform drawing Figure 2 No Pins 5 9 11 18 and 19 on IC1 Check the laser diode driver Q1 peripheral circuit Yes 2 Is the HF waveform normal Waveform drawin...

Page 82: ...s div NORM 100 kS s 2 1 Record Length Smoothing ON CH1 0 0 V CH2 0 00 V Main 100 K Zoom 2 K Mode NORMAL Type EDGE CH1 Delay 2 924 ms Hold off 0 2 µs CH3 0 00 V CH4 0 00 V BW FULL Trigger Filter Offset 3 Spin system check Press the OPEN CLOSE switch without inserting a disc and then try starting the play operation 1 The turntable rotates a little Waveform drawing Figure 5 Yes The spin driver circui...

Page 83: ...ode AUTO Type EDGE CH2 Delay 0 0 ns Hold off 0 2 µs CH3 0 00 V CH4 0 00 V BW FULL Trigger Filter Offset CH1 v DIV 500 mV 1999 04 05 17 33 17 5 Others Is pin 35 C2F on IC1 L No There are too many error flags on a damaged disc which makes error correction impossible Yes 1 When playing at normal speed Check the peripheral circuit at pin 69 DOUT on IC1 and the waveform Figure 7 Check again using a kno...

Page 84: ...r output 26 VVSS1 For use by the EFM PLL Circuit Built in VCO GND pin This pin must always be connected to 0V 27 PDOUT1 Output UNSTABLE Phase comparison output pin 1 to control built in VCO 28 PDOUT0 Output UNSTABLE Phase comparison output pin 0 to control built in VCO 29 PCKIST Input INPUT Resistor connection pin to set current for PDOUT 0 and 1 output 30 VVDD1 Built_in VCO power supply pin 1 31 ...

Page 85: ...el data output pin 61 VVDD2 For use by the EFM PLL Circuit Built in VCO power supply pin 2 62 VPREF2 Input INPUT Built in VCO control oscillator range setting input pin 63 VCOC2 Input INPUT Built in VCO control voltage setting input pin 64 VPDOUT2 Output UNSTABLE Built in VCO control output pin 2 65 VVSS2 Built in VCO GND pin This pin must always be connected to 0V 66 DVDD1 8 Output H Supply volta...

Page 86: ...SS RCH0 AVDD SLC0 LC78690E VVDD2 VPREF2 VCOC2 VPDOUT2 VVSS2 DVDD1 8 DVSS DVDD DOUT AMUTEB XVSS XOUT XIN XVDD LCH0 LRVDD LRVSS RCH0 AVDD SLC0 EFMIN RFOUT LPF PHLPF AIN CIN BIN DIN FEC RFMON VREF JITTC EIN FIN TEC TE TEIN AVSS LDD LDS AVDD FD0 TD0 SLD0 SPD0 VVSS1 PDOUT1 PDOUT0 PCKIST VVDD1 DMUTEB PUIN DEFECT FSEQ C2F DVDD DVSS VVDD3 VVSS3 DVDD1 8 DVDD DVSS CE CL DI DO RESB INTB0 INTB1 CONT2 CONT1 CO...

Page 87: ... Input pin for channel 2 14 VIN2G Input pin for channel 2 for gain control 15 VIN3 Input pin for channel 3 16 VIN3G Input pin for channel 3 for gain control 17 VIN4 Input pin for channel 4 18 VIN4G Input pin for channel 4 for gain control 19 FWD5 CH5 Output change pin FWD Logic input for bridge 20 REV5 CH5 Output change pin REV Logic input for bridge 21 VCONT5 Input pin for CH5 output voltage cont...

Page 88: ...5 16 17 18 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 11k 22k 1k 1k 1k 1k 11k 11k 11k 22k 22k 22k Pre Drive Pre Drive Reference voltage DUFFER AMP For 1 2 VCC DUFFER AMP For VREF TSD Band gad BTL Mode select Mode select CH4 CH5 CH6 CH3 CH2 CH1 VOLTAGE CONTROL AMP Figure 8 5 BLOCK DIAGRAM OF IC ...

Page 89: ...16 R1 4 Input signal pin 17 RSEL0 Input selector output pin 18 RIN Volume equalizer output pin 19 RTRE Treble band filter comprising capaci tor and resistor connection pin 20 RBASS Bass band filter comprising capaci tor and resistor connection pin 21 ROUT Bass band filter comprising capaci tor and resistor connection pin and bass treble output pin 22 VREF 0 5x VDD voltage generation block for anal...

Page 90: ...ed to the IC substrate 5 MODE 1 REG1 REG2 REG3 and REG4 outputs are turned ON when this pin is 5 V 6 REG2 Output 10 V power supply with a minimum peak out current of 800 mA 7 REG1 Output 8 5 V power supply with a minimum peak out current of 700 mA 5 2 3 4 1 7 6 Peak Current Protection Thermal Protection Load Short Protection Out puts Prc Drive Prc Drive Prc Drive Prc Drive Referenc e Voltage MODE ...

Page 91: ... 1g 1p 1e 1n 1r 1c 2a 2b 1b 2j 2k 2h 2f 2m 2d 2g 2p 2e 2n 2r 2c 1a 1j 1k 1h 1f 1m 1d 1g 1p 1e 1n 1r 1c 2a 2b 1b 2j 2k 2h 2f 2m 2d 2g 2p 2e 2n 2r 2c 1a 1j 1k 1h 1f 1m 1d 1g 1p 1e 1n 1r 1c 2a 2b 1b 2j 2k 2h 2f 2m 2d 2g 2p 2e 2n 2r 2c 1a 1j 1k 1h 1f 1m 1d 1g 1p 1e 1n 1r 1c 2a 2b 1b 2j 2k 2h 2f 2m 2d 2g 2p 2e 2n 2r 2c 1a 1j 1k 1h 1f 1m 1d 1g 1p 1e 1n 1r 1c 2a 2b 1b 2j 2k 2h 2f 2m 2d 2g 2p 2e 2n 2r 2c ...

Page 92: ...CD MPX870 8 9 MEMO ...

Page 93: ...ing the safety and performance of the set This document has been published to be used for after sales service only The contents are subject to change without notice 1 INTEGRATED CIRCUITS 2 TRANSISTORS 3 DIODES 4 VIBRATORS CRYSTALS 5 TRANSFORMERS 6 COILS 7 CAPACITORS 8 RESISTORS 9 OTHER CIRCUITRY PARTS 10 CD MECHANISM PARTS 11 CHANGER MECHANISM PARTS 12 CABINET PARTS 13 SPEAKER BOX PARTS 14 ACCESSO...

Page 94: ...NP KRA107 S Q706 VSKRC104S 1 AC Digital NPN KRC104 S Q707 VSKRA107S 1 AB Digital PNP KRA107 S Q708 VSKRC104S 1 AC Digital NPN KRC104 S Q709 VSKTA1273Y 1 AE Silicon PNP KTA1273 Y Q710 VSKTA1273Y 1 AE Silicon PNP KTA1273 Y Q711 VSKTA1273Y 1 AE Silicon PNP KTA1273 Y Q712 VSKRC102S 1 AB Digital NPN KRC102 S Q713 VSKRC104S 1 AC Digital NPN KRC104 S Q801 VSKTA1274Y 1 AE Silicon PNP KTA1274 Y Q885 VSKTC3...

Page 95: ...024AWZZ AC 3 µ H Choke L920 RCILZA017AWZZ AB 0 29 µ H L921 RCILZA017AWZZ AB 0 29 µ H 7 CAPACITORS C1 VCEAZA1AW107M AB 100µF 10V Electrolytic C2 VCKYCY1HB102K AA 0 001µF 50V C3 VCEAZA1AW107M AB 100µF 10V Electrolytic C4 VCKYPA1HB103K AA 0 01µF 50V C5 VCEAZA1EW476M AB 47µF 25V Electrolytic C6 RC EZ0004AWZZ AD 3 3µF 16V Electrolytic C7 VCKYCY1HB102K AA 0 001µF 50V C8 VCEAZA1AW476M AB 47µF 10V Electro...

Page 96: ...5V Electrolytic C133 VCEAZA1EW226M AB 22 µ F 25V Electrolytic C134 VCEAZA1AW227M AC 220 µ F 10V Electrolytic C135 VCKYCY1EF223Z AB 0 022 µ F 25V C137 VCQYKA1HM473K AB 0 047 µ F 50V Mylar C138 VCQPKAA2AA822J AA 0 0082 µ F 50V Thin Film C139 VCQYKA1HM393K AB 0 039 µ F 50V Thin Film C140 VCEAZA1EW476M AB 47 µ F 25V Electrolytic C141 VCEAZA1CW107M AC 100 µ F 16V Electrolytic C143 VCEAZA1HW335M AB 3 3 ...

Page 97: ...2K AA 0 001 µ F 50V C904 VCKYCY1HB102K AA 0 001 µ F 50V C905 VCEAZA1HW476M AB 47 µ F 50V Electrolytic C906 VCEAZA1HW476M AB 47 µ F 50V Electrolytic C907 VCCCCY1HH101J AA 100 p F CH 50V C908 VCCCCY1HH3R0C AA 3 p F CH 50V C909 VCQYKA1HM104K AB 0 1 µ F 50V Mylar C910 VCCCCY1HH3R0C AA 3 p F CH 50V C911 VCEAZA2AW107M AD 100 µ F 100V Electrolytic C912 VCEAZA2AW107M AD 100 µ F 100V Electrolytic C913 VCCC...

Page 98: ...RD ST2CD103J AA 10 kohms 1 6W R13 VRD ST2CD103J AA 10 kohms 1 6W R14 VRS CY1JB103J AA 10 kohms 1 16W R15 VRS CY1JB103J AA 10 kohms 1 16W R16 VRS CY1JB331J AA 330 ohms 1 16W R17 VRD ST2CD330J AA 33 ohms 1 6W R18 VRS CY1JB1R0J AA 1 ohms 1 16W R19 VRD ST2CD682J AA 6 8 kohms 1 6W R20 VRD ST2CD822J AA 8 2 kohms 1 6W R21 VRD ST2CD682J AA 6 8 kohms 1 6W R22 VRD ST2CD682J AA 6 8 kohms 1 6W R23 VRD ST2CD68...

Page 99: ...41 VRS CY1JB472J AA 4 7 kohms 1 16W R142 VRD RT2HD820J AA 82 ohms 1 2W R143 VRS CY1JB473J AA 47 kohms 1 16W R144 VRS CY1JB223J AA 22 kohms 1 16W R145 VRD ST2CD4R7J AA 4 7 ohms 1 6W R146 VRS CY1JB103J AA 10 kohms 1 16W R147 VRS CY1JB103J AA 10 kohms 1 16W R148 VRS CY1JB472J AA 4 7 kohms 1 16W R149 VRD ST2EE151J AA 150 ohms 1 4W R150 VRS CY1JB683J AA 68 kohms 1 16W R151 VRS CY1JB000J AA 0 ohms Jumpe...

Page 100: ... VRS CY1JB103J AA 10 kohms 1 16W R761 VRS CY1JB103J AA 10 kohms 1 16W R762 VRS CY1JB103J AA 10 kohms 1 16W R763 VRD ST2CD103J AA 10 kohms 1 6W R764 VRS CY1JB472J AA 4 7 kohms 1 16W R765 VRS CY1JB472J AA 4 7 kohms 1 16W R766 VRS CY1JB272J AA 2 7 kohms 1 16W R769 VRS CY1JB472J AA 4 7 kohms 1 16W R770 VRS CY1JB103J AA 10 kohms 1 16W R771 VRS CY1JB103J AA 10 kohms 1 16W R772 VRS CY1JB103J AA 10 kohms ...

Page 101: ...6W R984 VRS CY1JB821J AA 820 ohms 1 16W R985 VRS CY1JB822J AA 8 2 kohms 1 16W R986 VRS CY1JB822J AA 8 2 kohms 1 16W R987 VRS CY1JB222J AA 2 2 kohms 1 16W R988 VRS CY1JB222J AA 2 2 kohms 1 16W R990 VRD ST2CD102J AA 1 kohms 1 6W RD01 VRS CY1JB681J AA 680 ohms 1 16W RD02 VRS CY1JB821J AA 820 ohms 1 16W RD03 VRD ST2CD102J AA 1 kohms 1 6W RD04 VRS CY1JB152J AA 1 5 kohms 1 16W RD05 VRD ST2CD681J AA 680 ...

Page 102: ... 92LFSHOLD1652T AB Fuse Holder FH808 92LFSHOLD1652T AB Fuse Holder FH809 92LFSHOLD1652T AB Fuse Holder FH810 92LFSHOLD1652T AB Fuse Holder FL701 VVKNA12MM54 1 AU FL Display FW901 QCNWN2711AWPZ AD Flat Wire JK690 QSOCJ0313AWZZ AF Jack Game Input JK691 QSOCJ0120AWZZ AD Jack Video Out JK692 QJAKM0004AWZZ AK Jack Headphones JOG701 QSW ZA001AWZZ AE Volume Variable LG1 QLUGPA001AWZZ AC Lug Terminal LG2 ...

Page 103: ...CD MPX870 10 10 CD MECHANISM PARTS ...

Page 104: ...hion 306 92LHPC1LVASY AZ Pickup Unit Ass y 306 1 Pickup Unit Not Replacement Item 306 2 NGERR0043AFZZ AC Gear Rack 306 3 MSPRC0961AFZZ AA Spring Rack 307 PCUSG0001AWSA AD Cushion 308 PCUSG0004AWSA AD Cushion 701 XBSY726P06000 AA Screw M2 6x6mm 703 XBBY720P03000 AA Screw M2x3mm 704 LX WZ1070AFZZ AA Washer M1 5xM3 8x0 25mm M1A 92LMTR6447CASY AQ Motor with Chassis Spindle M2A 92LMTR6447BASY AN Motor ...

Page 105: ...CD MPX870 12 11 CHANGER MECHANISM PARTS ...

Page 106: ...NGERH0179AWZZ AC Tray Rear Gear A 128 NGERH0180AWZZ AB Tray Rear Gear B 129 NGERH0181AWZZ AC Mechanism Clamp Gear A 130 NGERH0182AWZZ AC Mechanism Clamp Joint Gear 131 NGERH0183AWZZ AC Mechanism Clamp Board Gear 132 NGERH0184AWZZ AC Tray Rear Joint Gear A 133 NGERH0185AWZZ AC Tray Rear Joint Gear B 134 NGERH0186AWZZ AC Tray Rear Joint Gear C 135 NGERH0187AWZZ AB Tray Rear Drive Gear 136 NGERH0188A...

Page 107: ...CD MPX870 14 12 CABINET PARTS Tuner Pack ...

Page 108: ... Disc Tray Cover 207 LCHSZA011AWSA AP Chassis Changer Unit 208 92LNBAND1318A AA Nylon Band 80mm 209 KMECBA012AWZZ BB Tape Mechanism Ass y 210 HDECQ1110AWSA AF Panel Edge Light 211 QCNWN1860AWZZ AC Lug Wire 212 JKNBKA022AWSB AL Knob Volume 213 92LCSPR1431C AA Spring Ring 214 LCHSMA044AWFW AR Chassis Main 215 LBND 1011AWZZ AA Nylon Band 216 QACCD0032AWZZ AL AC Power Supply Cord 217 LBSHC0005AWZZ AD ...

Page 109: ...ER BL Capacitor C1 2 SP2 R CH SP1 L CH WOOFER PWB D Lead free solder indication Lead free solder is used in the LED PWB Refer to Precautions for handling lead free solder for instructions and precautions 180 LED PWB D LED PWB D 2 1 2 1 2 1 SDPB40F2A 1N4148H 2 1 2 1 2 1 LED703 R CH A 7 0 7 P N C H C L A 8 0 7 P N C H C R R752B R CH LED702 L CH D752A R CH D752 L CH R752A L CH R752A L CH LED702 L CH ...

Page 110: ...ntrol 4 SPAKAA121AWZZ AN Packing Add Unit Left right 5 SPAKAA116AWZZ AL Packing Add Speaker Top Bottom 6 SPAKCA384AWZZ AW Packing Case 7 SSAKAA006AWZZ AB Polyethylene Bag Accessories 8 SPAKP0032AWZZ AF Polyethylene Bag Unit 9 SSAKHA077AWZZ AD Polyethylene Bag Speaker 10 TINSZA205AWZZ AM Operation Manual 11 TLABZA267AWZZ AB Label WMA 12 TLABZA392AWZZ AD Label Pop Tape 1 13 TLABZA368AWZZ AD Label Po...

Page 111: ...CD MPX870 18 ...

Page 112: ...CD MPX870 19 A0606 LAG ...

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