Philips MCM720 Service Manual
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Philips MCM720 Service Manual

Philips MCM720 Service Manual

Mp3 micro system
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MP3 Micro System

TABLE OF CONTENTS

........................................................... 1-1
Technical specification .................................................................. 2-1
Service tools ................................................................................. 2-1
Service measurement setup ......................................................... 2-2
Connections and controls...................................................... 3-1...3-3
Dismantling instructions ....................................................... 4-1...4-3
Block diagram................................................................................ 5-1
Wiring diagram ............................................................................. 6-1
Main Board
circuit diagram .................................................................. 7-1...7-2
layout diagram .................................................................. 7-3...7-4
C Music Board
circuit diagram .................................................................. 8-1...8-2
layout diagram .................................................................. 8-3...8-4
©
Copyright 2006 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 LX 0718 Service Audio
Version 1.1
Subject to modification
Panel Board
circuit diagram. ......................................................................... 9-1
layout diagram .......................................................................... 9-2
Cassette Board
circuit diagram ........................................................................ 10-1
layout diagram ....................................................................... 10-2
Tuner Board
circuit diagram. ........................................................................11-1
layout diagram .........................................................................11-2
Rectifier Board
circuit diagram. ....................................................................... 12-1
layout diagram ........................................................................ 12-2
Exploded view diagram ............................................................... 13-1
Mechanical partslist ..................................................................... 13-2
Electrical partslist .............................................................. 14-1...14-7
Revision list...................................................................................15-1
MCM720
all versions
© 3141 785 31001

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  • Page 1: Table Of Contents

    Revision list...................15-1 © Copyright 2006 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: Repair Policy Of Pcbs

    1 - 1 REPAIR POLICY OF PCBS VERSION VARIATIONS: MCM720 Type /Versions: Service policy Board in used: MAIN BOARD CMUSIC BOARD PANEL BOARD CASSETTE BOARD TUNER BOARD RECTIFIER BOARD Type /Versions: MCM720 Features Feature diffrence VOLTAGE SELECTOR ECO STANDBY - DARK √...

  • Page 3: Technical Specification

    2 - 1 TECHNICAL SPECIFICATIONS...

  • Page 4: Service Measurement Setup

    2 - 2 SERVICE MEASUREMENT Tuner FW 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 5: Connections And Controls

    3 - 1 CONNECTION AND CONTROLS...
  • Page 6 3 - 2 CONNECTION AND CONTROLS...
  • Page 7 3 - 3 CONNECTION AND CONTROLS...

  • Page 8: Dismantling Instructions

    DISMANTLING INSTRUCTIONS Dismantling of the Cover Cassette and Universal Loader Detaching the Front Panel assembly from the Bottom/Rear assembly 1) Push 1 catch each on the left & right side then remove the Cover Cassette in the direction as shown in Figure 1 and Figure 1A.
  • Page 9 DISMANTLING INSTRUCTIONS Dismantling of the Front Panel assembly Dismantling of the Rear Panel assembly 1) Loosen 3 screws K and 2 catches C5 (see Figure 8) to 4) Loosen 1 scew N and 2 catches C6 (see Figure 8) to remove the Tuner Board assembly.
  • Page 10 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 11: Block Diagram

    5 - 1 5 - 1 SET BLOCK DIAGRAM...

  • Page 12: Wiring Diagram

    6 - 1 6 - 1 SET WIRING DIAGRAM...
  • Page 13 7 - 1 7 - 1 CIRCUIT DIAGRAM - MAIN BOARD PART 1...
  • Page 14 7 - 2 7 - 2 CIRCUIT DIAGRAM - MAIN BOARD PART 2...

  • Page 15: Layout Diagram

    7 - 3 7 - 3 LAYOUT DIAGRAM - MAIN BOARD COMPONENT SIDE...

  • Page 16: Layout Diagram

    7 - 4 7 - 4 LAYOUT DIAGRAM - MAIN BOARD COPPER SIDE...
  • Page 17 8 - 1 8 - 1 CIRCUIT DIAGRAM - C MUSIC BOARD PART 1...
  • Page 18 8 - 2 8 - 2 CIRCUIT DIAGRAM - C MUSIC BOARD PART 2...

  • Page 19: Layout Diagram

    8 - 3 8 - 3 LAYOUT DIAGRAM - C MUSIC BOARD COMPONENT SIDE...
  • Page 20 8 - 4 8 - 4 LAYOUT DIAGRAM - C MUSIC BOARD COPPER SIDE...
  • Page 21 9 - 1 9 - 1 CIRCUIT DIAGARM - PANEL BOARD...
  • Page 22 9 - 2 9 - 2 LAYOUT DIAGARM - PANEL BOARD...
  • Page 23 10 - 1 10 - 1 CIRCUIT DIAGRAM - CASSETTE BOARD...
  • Page 24 10 - 2 10 - 2 LAYOUT DIAGRAM - CASSETTE BOARD COMPONENT SIDE COPPER SIDE...
  • Page 25 11 - 1 11 - 1 CIRCUIT DIAGRAM - TUNER BOARD 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...
  • Page 26 11 - 2 11 - 2 LAYOUT DIAGRAM - TUNER BOARD TUNER ADJUSTMENT TABLE 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 ( ECO6 Cenelec FM/MW - and FM/MW/LW - versions with AM-frame aerial )
  • Page 27 12 - 1 12 - 1 CIRCUIT DIAGRAM - RECTIFIER BOARD...
  • Page 28 12 - 2 12 - 2 LAYOUT DIAGRAM - RECTIFIER BOARD...

  • Page 29: Exploded View Diagram

    13 - 1 13 - 1 EXPLODED VIEW DIAGRAM...

  • Page 30: Mechanical Partslist

    13 - 2 MECHANICAL PARTSLIST 994000005774 TOP CABINET 994000005775 CD DOOR 994000001408 BRACKET STABILIZER 994000005776 BRACKET MAGNET CLAMPER 994000001407 STABILIZER 994000003232 CD DOOR SPRING 994000003255 CD TRAY 994000001422 CD DOOR SWITCH 994000003243 POWER KEY 994000005777 SWITCH SPRING FOR PUSH LOCK 994000003253 TOP BUTTON COVER 994000003247...
  • Page 31 14 - 1 ELECTRICAL PARTSLIST - MAIN BOARD - DIODES - ZD201 994000003193 DIODE BZX79-B12V ZD401 994000005722 ZENER DIODE 4V3 1/2W ZD203 994000005723 ZENER DIODE 6V2 1/2W ZD602 994000003194 ZENER DIODE 7V5 1/2W ZD204 994000003194 ZENER DIODE 7V5 1/2W ZD217 996500017767 ZENER DIODE 9V1 1/2W ZD701...
  • Page 32 14 - 2 ELECTRICAL PARTSLIST - CASSETTE BOARD - MISCELLANEOUS - 5703 994000001432 AM OSC BLACK 10M 7720 994000005719 I.C. SM AN17150A-E2V 7610 994000003199 I.C. HEF4094BT 7786 994000001433 TRANSISTOR (FET) J11 Note: Only these parts mentioned in the list are normal service parts.
  • Page 33 14 - 3 ELECTRICAL PARTSLIST - RECTIFIER BOARD - DIODES - ZD103 994000005731 ZENER DIODE 30V 1/2W DO-35 ZD101 994000003222 DIODE BZX79-B8V2 SOD27 D100 994000003223 DIODE BRIDGE RECTIFIER GBU6B - IC & TRANSISTORS - Q102 994000003228 TRANSISTOR 2N5401 TO-92 - MISCELLANEOUS - F101 994000001447 FUSE 2.5A 250V GLASS UL/CSA/VDE...
  • Page 34 14 - 4 ELECTRICAL PARTSLIST - TUNER BOARD - DIODES - 6107 934038690115 DIODE BZX284-C11 6106 934025530135 SWITCHING DIODE BAS216 6120 934025530135 SWITCHING DIODE BAS216 6105 994000002414 DIODE HN1V02H-B - COILS & FILTERS - 5109 996500017291 FM CER. FILTER SFELA10M7HA00-A0 5110 996500017291 FM CER.
  • Page 35 14 - 5 ELECTRICAL PARTSLIST - C MUSIC BOARD - DIODES - ZD202 994000005743 ZENER DIODE 2V7 1/2W (TC2V7) ZD901 996500022620 ZENER DIODE 3V9 1/2W (TC3V9) ZD902 996500022620 ZENER DIODE 3V9 1/2W (TC3V9) ZD2001 994000005744 ZENER DIODE 5V1 1/2W (TC5V1) - IC &...
  • Page 36 14 - 6 ELECTRICAL PARTSLIST - PANEL BOARD - DIODES - D701 994000005758 DIODE BZX79-B6V8 SOD27 LED1 994000005762 LED BLUE LED2 994000005762 LED BLUE LED3 994000005762 LED BLUE LED701 994000005763 LED INGICATOR RED - MISCELLANEOUS - Excelza 994000005757 LCD BRACKET RS701 994000005759 INFRARED RECEIVER IRM502H-S...

  • Page 37: Electrical Partslist

    14 - 7 ELECTRICAL PARTSLIST - MISCELLANEOUS - 994000003229 STEREO HEADPHONE JACK 994000001423 FFC CABLE 70MM P=1.0MM 16P 994000003259 FFC CABLE L=120MM 6P 994000003263 FFC CABLE 180MM 7P 994000005764 FFC CABLE L=120MM 6P 994000005765 FFC CABLE 7P L=160MM 994000005766 FFC P=1.25MM L=160MM 7P 994000005767 20 PINS FFC CABLE TYPE A 994000005768...

  • Page 38: Revision List

    15 - 1 REVISION LIST Version 1.0 (3141 785 31000) - Initial Release Version 1.1 (3141 785 31001) - Pages 13-2 : Mechanical parts list adapted.

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