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Philips MCM760 Service Manual
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Philips MCM760 Service Manual

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See also: Owner's Manual , User Manual
Micro System
©
Copyright 2008 Philips Consumer Electronics B.V. Eindhoven, The Netherlands
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or
transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without
the prior permission of Philips.
Published by SL 0828 Service Audio
Version 1.1

TABLE OF CONTENTS

Location of PC Boards & Versions Variation ........................ 1-2
Specifi 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 Diagram ................................................................... 4
Set Wiring Diagram ................................................................. 5
Display Board .......................................................................... 6
ECO 6 Tuner Board : Systems Non Cenelec ........................ 7A
Systems Cenelec................................7B
Power Board ............................................................................ 8
Tape Module ............................................................................ 9
Cd Board ............................................................................... 10
Main and Top Key Boards ..................................................... 11
Set Mechanical Exploded View & Parts List .......................... 12
Revision List . . ......................................................................... 13
Printed in The Netherlands
Subject to modification
MCM760
All Versions
Page
CLASS 1
LASER PRODUCT
© 3141 785 31012

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  • Page 1 LASER PRODUCT © Copyright 2008 Philips Consumer Electronics B.V. Eindhoven, The Netherlands All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips.
  • Page 2 LACATION OF PCBS VERSION VARIATIONS: MCM760 Type /Versions: Service policy Board in used: DISPLAY BOARD TOP KEY BOARD TUNER BOARD MAIN BOARD POWER BOARD CASS BOARD CD BOARD Type /Versions: MCM760 Features Feature diffrence √ √ VOLTAGE SELECTOR √ ECO STANDBY - DARK √...
  • Page 3 13-1 REVISION LIST 1.0 Manual 3141 785 31010 Initial Service Manual released. 1.1 Manual 3141 785 31011 In this version, Page 12-2 Mechanical & Accessories Parts List is updated. 1.2 Manual 3141 785 31012 In this version, Page 12-2 Mechanical & Accessories Parts List is updated. Add: WIRE1 9965 100 16944...

  • Page 4: Specifications

    SPECIFICATIONS Input sensitivity GENERAL: Aux in (at 1kHz) : 500mV at 600 ohm Mains voltage : 110-127V/220-240V Switchable for /98 CD (Audio Disc1) : -6dB track (Trk 35) 117V ± 10% for /37 USB : -6dB track 220V ± 10% for /61 Output sensitivity 230 ±...

  • Page 5: Measurement Setup

    MEASUREMENT SETUP Tuner FM Bandpass LF Voltmeter 250Hz-15kHz e.g. PM2534 e.g. 7122 707 48001 RF Generator e.g. PM5326 S/N and distortion meter e.g. Sound Technology ST1700B Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz). Tuner AM (MW,LW) Bandpass LF Voltmeter...
  • Page 6 SERVICE AIDS Service Tools: ESD Equipment: Universal Torx driver holder ........4822 395 91019 Anti-static table mat - large 1200x650x1.25mm ... 4822 466 10953 Torx bit T10 150mm ..........4822 395 50456 Anti-static table mat - small 600x650x1.25mm ..4822 466 10958 Torx driver set T6 - T20 .........
  • Page 7 WAARSCHUWING WARNING Alle IC’s en vele andere halfgeleiders zijn All ICs and many other semi-conductors are gevoelig voor electrostatische ontladingen susceptible to electrostatic discharges (ESD). (ESD). Careless handling during repair can reduce life Onzorgvuldig behandelen tijdens reparatie kan drastically. de levensduur drastisch doen verminderen. When repairing, make sure that you are Zorg ervoor dat u tijdens reparatie via een connected with the same potential as the mass...
  • Page 8 To avoid wear-out of tips switch off un-used equipment, or reduce heat. • Mix of lead-free solder alloy / parts with leaded solder alloy / parts is possible but PHILIPS recommends strongly to avoid mixed solder alloy types (leaded and lead-free).
  • Page 9 1 - 8 INSTALLATION...
  • Page 10 1 - 9 INSTALLATION & PREPARATION...
  • Page 11 1 - 10 CONTROLS...
  • Page 12 1 - 11 CONNECTIONS AND FUNCTIONAL OVERVIEW...
  • Page 13 1 - 12 TROUBLESHOOTING...
  • Page 14 DISMANTLING INSTRUCTIONS Dismantling of the Cover Cassette and Universal Loader Detaching the Universal Loader from the Bracket Module Mounting 1) Remove the Cover Cassette (pos 1+pos 2) in the direction as 1) Slide out the Loader Tray fully and remove 4 screws B (see shown in Figure 1.
  • Page 15 DISMANTLING INSTRUCTIONS Dismantling of the Front Panel assembly Dismantling of the Front Panel assembly 1) The Knob Volume (pos 10) can be remove by pulling it 5) Loosen 4 screws G (see Figure 9) to remove the Bracket out in the direction as shown in Figure 7 Main.
  • Page 16 DISMANTLING INSTRUCTIONS Repair Hints & Service Positions Service position B 1) During repair it is possible to disconnect the Tuner Board Note: The flex cables are very fragile, care should be taken and/or CD Module completely unless the fault is sus- not to damage them during repair.

  • Page 17: Service Test Program

    SERVICE TEST PROGRAM To start service test program hold STANDBY & depressed while plugging in the mains cord S refers to Service Mode Display shows the V refers to Version ROM version "S-Vyy" yy refers to Software version number of the uProcessor (Main menu) (counting up from 01 to 99) QUARTZ...

  • Page 18: Set Block Diagram

    SET BLOCK DIAGRAM...

  • Page 19: Set Wiring Diagram

    SET WIRING DIAGRAM...

  • Page 20: Display Board

    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 Electrical Parts List ............6-6...
  • Page 21 FTD DISPLAY PIN CONNECTION...
  • Page 22 PCB LAYOUT - DISPLAY BOARD (TOP VIEW)
  • Page 23 PCB LAYOUT - DISPLAY BOARD (BOTTOM VIEW)
  • Page 24 CIRCUIT DIAGRAM - DISPLAY BOARD...
  • Page 25 ELECTRICAL PARTS LIST - DISPLAY BOARD D207 9940 000 04422 SCHOTTKY PMEG2010 D208 9940 000 05673 DIODE SM4001 DO-213AB. D209 9940 000 05673 DIODE SM4001 DO-213AB. FB206 9940 000 04264 MULT. VAR. 10.6-15.4V FB207 9940 000 04264 MULT. VAR. 10.6-15.4V HP201 9940 000 05682 PHONE STEREO JACK CKX-3.5-23A IR201...
  • Page 26 7A-1 7A-1 BLOCK DIAGRAM TUNER BOARD ECO 6 Systems Vcc1 buffer ampl. Stab Stab Discriminator FM-RF FM-IF 1 FM-IF 2 (MPX) Vcc2 1101 Loop (1102) LF filter 10,7 MHz 10,7 MHz 10,7 MHz 1120 left left Stereo right right Det. Decoder Frontend Mixer...
  • Page 27 7A-2 7A-2 1101 A1 1102 B1 1103 F2 1120 E14 1130 A2 TUNER BOARD ECO6 1131 B2 / SYSTEMS NON CENELEC 1132 G13 2101 B3 VERSION PROGRAMMING COMPONENTS 2102 B1 1101 2103 C7 2105 2104 B3 AM-IF1 1130 2105 A2 100n 5111 450kHz...
  • Page 28 7A-3 7A-3 1101 A6 1120 A4 1132 A5 2128 C4 2138 C2 3142 D2 5110 B3 5114 A2 5123 D5 7112 C1 9104 B5 9107 D4 TUNER ADJUSTMENT TABLE ( ECO6 FM/MW- and FM/MW/LW - versions with AM-frame aerial ) 1102 B6 1130 B5 2106 C5...
  • Page 29 7A-4 7A-4 Electrical Partslist ECO6 SYSTEMS NON CENELEC MISCELLANEOUS RESISTORS ––––––––––––––––––––––––––––––––––––––––––––––––––––– ––––––––––––––––––––––––––––––––––––––––––––––––––––– 1101 2422 015 19376 SOCKET 2P CLICKFIT 3143 © 4822 051 20223 22kΩ 0,1W USA only RDS only 1102 4822 267 10283 SOCKET COAX, IEC 75Ω 3144 © 4822 051 10102 1kΩ...
  • Page 30 7B-1 7B-1 BLOCK DIAGRAM ECO6 Tuner Board SYSTEMS CENELEC version: TABLE OF CONTENTS Blockdiagram..............7B-1 Schematic Diagram............7B-2 Component Layout ............7B-3 Adjustment table .............7B-3 Electrical Partslist............7B-4...
  • Page 31 7B-2 7B-2 1101 A2 5121 E11 1102 B1 5122 H5 1103 E2 5123 G5 1110 B2 6105-1 E4 VERSION PROGRAMMING COMPONENTS 1120 E14 6105-2 G6 TUNER BOARD ECO6 1130 A2 6106 D4 / SYSTEMS-CENELEC 1131 C2 6107 G13 VERSION AM-IF1 1132 F13 6120 C13 6120...
  • Page 32 7B-3 7B-3 1101 B5 1110 B4 1131 C5 2107 B3 2133 C1 2162 A4 5102 C4 5110 A2 5114 A2 5121 B2 7104 C4 9101 A2 9104 B1 9107 B4 9110 A4 TUNER ADJUSTMENT TABLE ( ECO6 Cenelec FM/MW - and FM/MW/LW - versions with AM-frame aerial ) 1102 B5 1120 A4 1132 A4...
  • Page 33 7B-4 7B-4 Electrical Partslist ECO6 SYSTEMS CENELEC MISCELLANEOUS RESISTORS DIODES ––––––––––––––––––––––––––––––––––––––––––––––––––––– ––––––––––––––––––––––––––––––––––––––––––––––––––––– ––––––––––––––––––––––––––––––––––––––––––––––––––––– 1101 2422 015 19376 SOCKET CLICKFIT 2P 3128 © 4822 117 11449 2,2kΩ 0,1W 6105 © 4822 130 83075 HN1V02H USA only LW only 1102 4822 267 10283 SOCKET COAX, IEC 75Ω...
  • Page 34 Brief introduction of the Mains Board ECO Power Standby Transformer 5203 provides the LPS supply to control the relay 1210, cutting of the Mains supply to the Mains transformer during the ECO Power (standby) mode. The Mains transformer provides the following: -5V6_ECO for Low Power Supply -+A, +A/2 and +B to the Combi board POWER BOARD...
  • Page 35 PCB LAYOUT - POWER BOARD...
  • Page 36 CIRCUIT DIAGRAM - POWER BOARD...
  • Page 37 ELECTRICAL PARTS LIST - POWER BOARD L501 9940 000 02657 AC LINE FILTER 3MH 1A Q501 9940 000 05651 TRANSISTOR PBSS4140S NPN RL501 9940 000 05597 RELAY DC5V AC10A Note: Only these parts mentioned in the list are normal service parts.
  • Page 38 CASSETTE BOARD 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 “9940 000 05592” for /37. "9940 000 05684"...
  • Page 39 PCB LAYOUT - CASSETTE BOARD (TOP VIEW)
  • Page 40 PCB LAYOUT - CASSETTE BOARD (BOTTOM VIEW)
  • Page 41 CIRCUIT DIAGRAM - DISPLAY BOARD...

  • Page 42: Cd Board

    10-1 10-1 CD BOARD 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 “9940 000 05584” for /37. "9940 000 05685"...
  • Page 43 10-2 10-2 PCB LAYOUT - CD BOARD (TOP VIEW)
  • Page 44 10-3 10-3 CIRCUIT DIAGRAM - CD BOARD (PART1)
  • Page 45 10-4 10-4 CIRCUIT DIAGRAM - CD BOARD (PART2)

  • Page 46: Main And Top Key Boards

    11-1 11-1 PCB LAYOUT - TOP KEY BOARD (TOP VIEW) (ONLY FOR ORIENTATION) MAIN & TOP KEY BOARD PCB LAYOUT - TOP KEY BOARD (BOTTOM VIEW) (ONLY FOR ORIENTATION) Top Key Board is not intented to be repaired on component level. Circuit Diagram and Printed Circuit Board drawings are published for orientation only.
  • Page 47 11-2 11-2 PCB LAYOUT - MAIN BOARD (TOP VIEW)
  • Page 48 11-3 11-3 PCB LAYOUT - DISPLAY BOARD (BOTTOM VIEW)
  • Page 49 11-4 11-4 CIRCUIT DIAGRAM - MAIN BOARD...
  • Page 50 11-5 11-5 ELECTRICAL PARTS LIST - MAIN BOARD C665 9940 000 05647 CAP ELECT 4700µF 50V /-20% C666 9940 000 05647 CAP ELECT 4700µF 50V /-20% C672 9940 000 03286 CAP ELECT 4700µF 25V /-20% D608 9940 000 05313 RECTIFIER BRIDGE DIODE RS808 FB601 9940 000 05661 CH-FB 2700Ω...
  • Page 51 12-1 12-1 SET MECHANICAL EXPLODED VIEW...
  • Page 52 12-2 12-2 MECHANICAL & ACCESSORIES PARTS LIST ELECTRICAL PARTS LIST - MISCELLANEOUS 1110 9940 000 04237 FM FRONT END MODULE /05/12 9940 000 02122 FFC CABLE 16P L=170MM 9940 000 05598 FFC 7PIN P=1.25MM L=100MM 9940 000 02917 AC CORD L1.5M 2.5A 250V /61 9940 000 05599 FFC 8PIN P1.25MM L110MM 9940 000 05624 FRAME-FRONT CABINET (L) 9940 000 02595...

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