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Micro Hi-Fi System
CONTENTS
Technical specification ..................................................................1-2
Service measurement setup..........................................................1-3
Service aids .................................................................................1-4
Instructions on CD playability ...............................................2-1.. 2-2
Disassembly diagram............ ........................................................3-1
Block diagram ................................................................................4-1
Wiring diagram ..............................................................................4-2
Main board
Circuit diagram ..................................................................5-1..5-3
Layout diagram ..................................................................5-4..5-5
Display board
Circuit diagram .........................................................................6-1
Layout diagram .........................................................................6-2
Exploded view diagram .................................................................9-1
Mechanical parts list ......................................................................9-2
Electrical parts list...............................................................10-1..10-2
©
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 LX 0805 Service Audio
Version 1.0
Subject to modification
MCM177
-/12/05
3141 785 32470

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Summary of Contents for Philips MCM177

  • Page 1: Table Of Contents

    Electrical parts list...............10-1..10-2 © 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: Technical Specification

    1 - 2 TECHNICAL SPECIFICATION AMPLIFIER GENERAL INFORMATION Output power ........2 x 10W RMS AC Power ......... 100 – 240 V, 50/60 Hz Signal-to-noise ratio ......≥ 60 dBA (IEC) Dimensions (w x h x d) ..232 x 85 x 275 (mm) Frequency response .......
  • Page 3: 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 4: Service Aids

    SERVICE AIDS WARNING All ICs and many other semi-conductors are susceptible to electrostatic discharges (ESD). Careless handling during repair can reduce life drastically. When repairing, 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.
  • Page 5: Instructions On Cd Playability

    2 - 1 INSTRUCTIONS ON CD PLAYABILITY Customer complaint "CD related problem" Set remains closed! check playability playability ok ? For flap loaders (= access to CD drive possible) "fast" lens cleaning cleaning method is recommended check playability playability ok ? Play a CD for at least 10 minutes check playability...
  • Page 6 2 - 2 INSTRUCTIONS ON CD PLAYABILITY PLAYABILITY CHECK LIQUID LENS CLEANING Before touching the lens it is advised to clean the surface of the lens by blowing clean air over it. For sets which are compatible with CD-RW discs This to avoid that little particles make scratches on use CD-RW Printed Audio Disc ....7104 099 96611 the lens.
  • Page 8: Block Diagram

    4 - 1 4 - 1 SET BLOCK DIAGRAM...
  • Page 9: Wiring Diagram

    4 - 2 4- 2 SET WIRING DIAGRAM...
  • Page 10: Circuit Diagram

    5 - 1 5 - 1 CIRCUIT DIAGRAM - MAIN BOARD CD & MP3 PART...
  • Page 11 5 - 2 5 - 2 CIRCUIT DIAGRAM - MAIN BOARD AF & AMP PART...
  • Page 12 5 - 3 5 - 3 CIRCUIT DIAGRAM - MAIN BOARD USB PART...
  • Page 13 5 - 4 5 - 4 LAYOUT DIAGARM - MAIN BOARD COMPONENT SIDE VIEW...
  • Page 14 5 - 5 5 - 5 LAYOUT DIAGARM - MAIN BOARD COPPER SIDE VIEW...
  • Page 15 6 - 1 6 - 1 CIRCUIT DIAGRAM - DISPLAY BOARD...
  • Page 16 6 - 2 6 - 2 LAYOUT DIAGARM - DISPLAY BOARD...
  • Page 17: Exploded View Diagram

    9 - 1 9 - 1 EXPLODED VIEW DIAGRAM...
  • Page 18: Mechanical Partslist

    9 - 2 MECHANICAL PARTSLIST D001 996510012043 LCD DISPLAY 996510012045 LCD HOLDER 996510012046 ECO POWER LED HOLDER 996510012047 LCD LIGHTGUIDE LENS 994000005398 CD MECHANISM DA11B3VF 996510012072 CD DOOR SPRING 996510019958 BOTTOM CABINET 996510012057 TOP CAB FRONT 996510019959 HOUSING 996510012059 USB BRACKET 996510012060 CD HOLDER 996510012061...
  • Page 19: Electrical Partslist

    10 - 1 ELECTRICAL PARTSLIST MAIN BOARD ASSEMBLY 996510000896 SCHOTTKY BARRIER DIODE SK 1217 996510009333 DIODE RB160M-30 SOD-123 996510009333 DIODE RB160M-30 SOD-123 996510000323 SMD DIODE BAS316 996510000323 SMD DIODE BAS316 996510000323 SMD DIODE BAS316 996510000323 SMD DIODE BAS316 996510000878 TRANSISTORS SPD09P06PL 996510010910 TRANSISTOR ST8050C 994000004145...
  • Page 20 10 - 2 ELECTRICAL PARTSLIST DISPLAY/KEY BOARD ASSEMBLY 996510012044 ROTARY ENCODER 996510019961 LED LAMP 2x5x7mm (WHITE) 996510019961 LED LAMP 2x5x7mm (WHITE) 996510019961 LED LAMP 2x5x7mm (WHITE) 994000001234 LED LAMP 3MM (RED) 996510009333 DIODE RB160M-30 SOD-123 D401 996510000323 SMD DIODE BAS316 996510019961 LED LAMP 2x5x7mm (WHITE) 994000003937...

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