Philips MCM285 Service Manual
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- Mode d'emploi (20 pages) ,
- Quick start manual (4 pages) ,
- Specifications (2 pages)
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User Manual
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
Layout diagram ..................................................................5-2..5-3
Key board
Circuit diagram .........................................................................6-1
Layout diagram ..................................................................6-2..6-3
Exploded view diagram .................................................................7-1
Mechanical parts list ......................................................................7-2
Electrical parts list...................................................................8-1..8-2
Revision list.....................................................................................9-1
©
Copyright 2010 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 1016 Service Audio
Version 1.1
Subject to modification
MCM285
-/55/77/79
3141 785 32741
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Summary of Contents for Philips MCM285
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Page 1: Table Of Contents
Revision list..................9-1 © Copyright 2010 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 SPEAKERS Total output power 1-way Bass Reflex System ........... 25 W (12.5 W per channel) Impedance ................ 8 Ω Signal-to-noise ratio ......≥ 62 dBA (IEC) Speaker diameter ............. 4” Frequency response ..63 – 16000 Hz, ± 3 dB Dimensions (w x h x d)..14.6x23.6x18.5 (cm) CD PLAYER GENERAL... -
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.
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Page 7: Block Diagram
4 - 1 4 - 1 SET BLOCK DIAGRAM... -
Page 8: Wiring Diagram
4 - 2 4- 2 SET WIRING DIAGRAM... -
Page 9: Circuit Diagram
5 - 1 5 - 1 CIRCUIT DIAGRAM - MAIN BOARD... - Page 10 5 - 2 5 - 2 LAYOUT DIAGARM - MAIN BOARD COMPONENT SIDE VIEW...
- Page 11 5 - 3 5 - 3 LAYOUT DIAGARM - MAIN BOARD COPPER SIDE VIEW...
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Page 12: Circuit Diagram
6 - 1 6 - 1 CIRCUIT DIAGRAM - KEY BOARD... - Page 13 6 - 2 6 - 2 LAYOUT DIAGARM - KEY BOARD COMPONENT SIDE VIEW...
- Page 14 6 - 3 6 - 3 LAYOUT DIAGARM - KEY BOARD COPPER SIDE VIEW...
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Page 15: Exploded View Diagram
7 - 1 7 - 1 EXPLODED VIEW DIAGRAM 26/27... -
Page 16: Mechanical Partslist
996510015923 CD UBBE CUSHION ED (CIBA) 996510015924 CD UBBE CUSHION BLUE (CIBA) 996510015925 SANYO CD CLAMPER PLASTIC D68m 996510015926 PH-MCM285 CD DUST COVER 996510015927 7261N CD PICK UP DUSTCOVER 994000004726 7831 GEAR (MODE:0.8) 994000004727 7831 GEAR STAND (MODE:0.8) ! 996510017868... -
Page 17: Electrical Partslist
8 - 1 ELECTRICAL PARTSLIST MAIN BOARD ASSEMBLY 996510015906 AM COIL 67:9T 4 LEADS H-COMB 994000003966 FERRITE BAR D10XL60 C1105 996510017866 E CAP 25V+-20% 4700u CF101 996500038854 DISCRIMINATOR JT10.7MG-B CF102 996510015911 F, LT10.7MS3 CAIQIN (RED) CF103 996500038852 FILTER FM450AL (DOUBLE) CN801 996510004750 16P FFC CONN. - Page 18 8 - 2 ELECTRICAL PARTSLIST MAIN BOARD ASSEMBLY Q611 994000003972 CHIP TR MMBT9014C Q612 996510003952 TR 8550D Q613 996510003952 TR 8550D Q801 994000003973 CHIP TR MMBT9015C CHIP TR NPN 8050C Q801 994000004004 Q802 996500038840 TR PNP 2SB764E-SSH-AE(TP) 994000004779 SPEAKER TERMINAL 4P MSP-124V T101 996510015907 AM IFT YEL 10mm A49...
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Page 19: Revision List
REVISION LIST Version 1.0 (3141 785 32740) * Initial Release Version 1.1 (3141 785 32741) * P8-2 is revised.Changed IC701.(4/19/2010)
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