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Philips MCM761/12/61, Service Manual, Page: 2 / 37

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Philips MCM761/12/61 Service Manual Download Page 2

1-2

LACATION OF PCBS

 VERSION VARIATIONS:

Type /Versions:

Features

Board in used:

MCM761

Service policy

* TIPS :  C  -- Component Lever Repair.

M  -- Module Lever Repair

¥

-- Used

/05

/61

Feature diffrence

RDS
VOLTAGE SELECTOR
ECO STANDBY - DARK

Type /Versions:

DISPLAY BOARD

TOP KEY BOARD

TUNER BOARD

CASS BOARD

POWER BOARD

MAIN BOARD

/12 /37

/98

C

C/M

C

M

C

C

C/M

C/M

M

C

C/M

MCM761

/05

/61

/12 /37

/98

¥

¥

¥

CD BOARD

C/M

C

C

Summary of Contents for MCM761/12/61

Page 1: ...ands Subject to modification Micro System Version 1 4 CLASS 1 LASER PRODUCT 3141 785 34044 TABLE OF CONTENTS Page Location of PC Boards Versions Variation 1 2 Speci cations 1 3 Measurement Setup 1 4 Service Aids Safety Instruction etc 1 5 to 1 7 Connections Functional Overview 1 8 to 1 11 Troubleshooting 1 12 to 1 13 Disassembly Instructions Service positions 2 Service Test Program 3 Set Block Dia...

Page 2: ... policy TIPS C Component Lever Repair M Module Lever Repair Used 05 61 Feature diffrence RDS VOLTAGE SELECTOR ECO STANDBY DARK Type Versions DISPLAY BOARD TOP KEY BOARD TUNER BOARD CASS BOARD POWER BOARD MAIN BOARD 12 37 98 C C M C M C C C M C M M C C M MCM761 05 61 12 37 98 CD BOARD C M C C ...

Page 3: ...Treble 12kHz 3 Steps Incredible Surround On Off Input sensitivity Aux in at 1kHz 500mV at 600 ohm CD Audio Disc1 6dB track Trk 35 Output sensitivity Headphone output at 32 ohm 15mW 2dB Max vol CASSETTE RECORDER Number of track 2 tracks stereo Tape speed 4 76 cm sec 2 Wow and flutter 0 4 DIN Fast wind Rewind time C60 130 sec Bias system 78kHz 10kHz Rec Pb frequency response within 8dB 80Hz 10kHz Si...

Page 4: ...15kHz e g 7122 707 48001 LF Voltmeter e g PM2534 DUT S N and distortion meter e g Sound Technology ST1700B Frame aerial e g 7122 707 89001 Tuner AM MW LW To avoid atmospheric interference all AM measurements have to be carried out in a Faraday s cage Use a bandpass filter or at least a high pass filter with 250Hz to eliminate hum 50Hz 100Hz RF Generator e g PM5326 Ri 50 Bandpass 250Hz 15kHz e g 71...

Page 5: ...ng make sure that you are connected with the same potential as the mass of the set via a wrist wrap with resistance Keep components and tools also at this potential ESD CLASS 1 LASER PRODUCT GB Safety regulations require that the set be restored to its original condition and that parts which are identical with those specified be used Safety components are marked by the symbol Lead free ...

Page 6: ...mer SET OK check playability N Y playability ok check playability check playability return set Customer complaint CD related problem fast lens cleaning For flap loaders access to CD drive possible cleaning method is recommended INSTRUCTIONS ON CD PLAYABILITY 1 6 Exchange CDM For description see following pages ...

Page 7: ...viously caused by a scratched dirty or copy protected CD In case problems remain the customer is requested to contact the workshop directly The lens cleaning method should be mentioned in the addendum sheet The final wording in national language as well as the printing is under responsibility of the Regional Service Organizations LIQUID LENS CLEANING Because the material of the lens is synthetic a...

Page 8: ...crews each on the left right side Detaching the Universal Loader from the Bracket Module Mounting Figure 1 Figure 3 Figure 5 7 e r u g i F 1 Remove 2 screws C see Figure 5 from the bottom of the Cabinet Front Detaching the Front Panel assembly from the Bottom Rear assembly 2 Release the fixation of the Main Board to Bracket Combi by removing the 1 screw and pulling the Main Board outwards see Figu...

Page 9: ...et Main 6 Loosen 6 screws C4 see Figure 11 to remove the Display Board 7 Loosen 4 screws H see Figure 11 to remove the Top Key Board Dismantling of the Front Panel assembly Figure 9 Figure 8 Figure 10 Figure 12 Figure 11 1 Loosen 3 screws K and 2 catches C5 see Figure 12 to remove the Tuner Board assembly 2 Loosen 3 screws L see Figure 12 to free the Main Board 3 Loosen 1 screw M see Figure 12 to ...

Page 10: ...d and or CD Module completely unless the fault is sus pected to be in that area This will not affect the performance of the rest of the set Note The flex cables are very fragile care should be taken not to damage them during repair After repair be very sure that the flex cables are inserted properly into the flex sockets before encasing otherwise faults may occurs 2 3 2 3 ...

Page 11: ...t Display Board pin 19 of uP 2 929 6875Hz Display shows 32K Output at Display Board pin 19 of uP 2048Hz QUARTZ TEST TAPE Button pressed TAPE Button pressed 9 Button pressed TUNER Button pressed Disconnect Mains cord Y Y N N Y Display Tuner Version ccc Service frequencies are copied to the RAM see Table 1 Tuner works normally except PROGRAM button Service Mode left TUNER TEST TUNER Button pressed N...

Page 12: ...SET BLOCK DIAGRAM 4 1 4 1 ...

Page 13: ...SET WIRING DIAGRAM 5 1 5 1 ...

Page 14: ...DISPLAY BOARD TABLE OF CONTENTS FTD Display Pin Connection 6 2 Display PCB Layout Top View 6 3 Display PCB Layout Bottom View 6 4 Circuit Diagram 6 5 6 1 6 1 ...

Page 15: ...6 2 6 2 FTD DISPLAY PIN CONNECTION ...

Page 16: ...PCB LAYOUT DISPLAY BOARD TOP VIEW 6 3 6 3 ...

Page 17: ...6 4 6 4 PCB LAYOUT DISPLAY BOARD BOTTOM VIEW ...

Page 18: ...6 5 6 5 CIRCUIT DIAGRAM DISPLAY BOARD ...

Page 19: ...CB Circuit Diagram Part2 7 5 CD PCB Circuit Diagram Part3 7 6 7 1 7 1 The board is not intented to be repaired on component level Circuit Diagram and Printed Circuit Board drawings are published for orientation only In case of defects please replace the entire board The board can be ordered with codenumber 9965 100 23096 ...

Page 20: ...PCB LAYOUT CD BOARD TOP VIEW 7 2 7 2 ...

Page 21: ...PCB LAYOUT CD BOARD BOTTOM VIEW 7 3 7 3 ...

Page 22: ...7 4 7 4 CIRCUIT DIAGRAM CD BOARD PART1 ...

Page 23: ...7 5 7 5 CIRCUIT DIAGRAM CD BOARD PART2 ...

Page 24: ...7 6 7 6 CIRCUIT DIAGRAM CD BOARD PART3 ...

Page 25: ... 5R 4A R417 33 2W D404 FR104 JP429 C411 1uF 50V L402 10uH R421 2K2 VD401 12V JP402 CN402 SW TVR403 241 JP403 V405 S8050 V404 S8050 C401 330uF 200V JP417 HS401 HEATSINK 1 2 JP409 C405 471 C406 104 C414 2200uF 35V C412 472 1KV R427 4K7 VD403 24V JP410 JP401 R411 2M 0 5W L403 10uH CY401 102 250V_Y1 R422 20K JP404 F401 T3 15AL250V TVR402 241 R431 3K3 V401 SPA11N60C3 D407 UF803 CY404 102 250V_Y1 C402 3...

Page 26: ...R2 JP419 JP423 VD402 12V L404 10uH VD405 NC JP412 JP406 C436 102 100V D412 1N5819 CN403 CN2 0_6 1 2 3 4 5 6 D5V AC3V5 AC3V5 30V 3 3V STBY C437 102 1KV L405 10uH FB401 FB600 D416 1N4007 R433 100 R438 330 JP425 D411 SR3100 D415 FR107 C425 104 C435 4 7uF 160V JP426 R415 22 C434 47uF 50V R441 4 7K D419 FR107 R409 82K 0 25W JP407 C422 470uF 16V R442 22 C409 103 FB402 FB600 R434 1K JP424 VD404 6 8V FB40...

Page 27: ... 9 2 Cassette PCB Circuit Diagram 9 3 9 1 9 1 The board is not intented to be repaired on component level Circuit Diagram and Printed Circuit Board drawings are published for orientation only In case of defects please replace the entire board The board can be ordered with codenumber 9965 100 23098 ...

Page 28: ...PCB LAYOUT CASSETTE BOARD TOP VIEW 9 2 9 2 PCB LAYOUT CASSETTE BOARD BOTTOM VIEW ...

Page 29: ...9 3 9 3 CIRCUIT DIAGRAM CASSETTE BOARD ...

Page 30: ...MAIN TOP KEY BOARD TABLE OF CONTENTS Main Top Key PCBs Layout Top View 10 2 Main Top Key PCBs Layout Bottom View 10 3 Main Top Key PCBs Circuit Diagram 10 4 10 1 10 1 ...

Page 31: ...PCB LAYOUT MAIN TOP KEY BOARD TOP VIEW 10 2 10 2 ...

Page 32: ...10 3 10 3 PCB LAYOUT MAIN TOP KEY BOARD BOTTOM VIEW ...

Page 33: ...10 4 10 4 CIRCUIT DIAGRAM MAIN TOP KEY BOARD ...

Page 34: ...11 1 11 1 SET MECHANICAL EXPLODED VIEW 26 30 CASS 22 43 28 8 34 33 40 39 40 47 41 25 46 48 15 21 27 22 1 35 7 TUNERM FAN 3 58 16 19 31 20 43 ...

Page 35: ...CON603 996510040679 FFC CONNECTOR 30PIN P1 00MM WHITE 31 994000005642 SPRING CASSETTE DOOR 2A ...

Page 36: ...00VDO41 FB15 996510023124 FB 600R 25 100MHZ D413 996510007042 DIODE RECT 1N4007 1A 1000VDO41 FB15 996510023124 FB 600R 25 100MHZ D414 996510023072 SCHOTTKY BARRIER DIODE 1N5822 FB16 996510023124 FB 600R 25 100MHZ D415 996510023086 DIODE FR107 FAST RECT 1A 1000V FB2 994000005661 CH FB 2700R 25 SZ2012K272T D416 996510023086 DIODE FR107 FAST RECT 1A 1000V FB3 996510023097 FERRITE BEAD 1K 25 100MHZ D4...

Page 37: ...023105 MAIN PWB ASSEMBLY 12 1 3 Manual 3141 785 34043 In this version Page 11 2 3 Partslist updated Add CON603 996510040679 FFC CONNECTOR 30PIN P1 00MM WHITE CN1 996510040679 FFC CONNECTOR 30PIN P1 00MM WHITE REVISION LIST 12 1 1 4 Manual 3141 785 34044 In this version Page 11 1 Mechanical Exploded View updated The item numbers in Set Mechanical Exploded View have been corrected according to parts...

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