Philips-MCM-206-Service-Manual(1) 电路图 维修手册.pdf

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1、 MCM206/12 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 pe

2、rmission of Philips. Published by SL 1027 Service Audio Printed in The Netherlands Subject to modification Micro System Version 1.0 CLASS 1 LASER PRODUCT 3141 785 35350 TABLE OF CONTENTS Page Location of PCBs .1-2 Specifi cations .1-3 Measurement Setup .1-4 Service Aids, Safety Instruction, etc .1-5

3、 CD Playability Check .1-6 to 1-7 Software Version Checking .2 Set Wiring MW: 531 - 1602kHz Tuning grid50 kHz (FM); 9 kHz (MW) Total Harmonic Distortion 50 dB 1-3 RadioFans.CN 收音机爱 好者资料库 1-4 LEVEL METER e.g. Sennheiser UPM550 with FF-filter S/N and distortion meter e.g. Sound Technology ST1700B L R

4、DUT CD Use Audio Signal Disc(replaces test disc 3)SBC429 4822 397 30184 Bandpass 250Hz-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

5、 have to be carried out in a Faradays 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. 7122 707 48001 LF Voltmeter e.g. PM2534 DUT RF Generator e.g. PM5326 S/N and distortion meter e.g. So

6、und Technology ST1700B Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz). Ri=50 Tuner FM MEASUREMENT SETUP 1-5 SERVICE AIDS GBWARNING All ICs and many other semi-conductors are susceptible to electrostatic discharges (ESD). Careless handling durin

7、g 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. ESD CLASS 1 LASER PRODUCT GB Safety regulations require that the set be restored t

8、o its original condition and that parts which are identical with those specified, be used Safety components are marked by the symbol !. Lead free Set remains closed! N Y Play a CD for at least 10 minutes Y playability ok ? N playability ok ? add Info for customer SET OK check playability N Y playabi

9、lity 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 PLAYABILITY CHECK

10、 For sets which are compatible with CD-RW discs use CD-RW Printed Audio Disc.7104 099 96611 TR 3 (Fingerprint) TR 8 (600 Black dot) maximum at 01:00 playback of these two tracks without audible disturbance playing time for: Fingerprint10seconds Black dot from 00:50 to 01:10 jump forward/backward (se

11、arch) within a reasonable time For all other sets use CD-DA SBC 444A.4822 397 30245 TR 14 (600 Black dot) maximum at 01:15 TR 19 (Fingerprint) TR 10 (1000 wedge) playback of all these tracks without audible disturbance playing time for: 1000 wedge10seconds Fingerprint10seconds Black dot from 01:05 t

12、o 01:25 jump forward/backward (search) within a reasonable time CUSTOMER INFORMATION It is proposed to add an addendum sheet to the set which informs the customer that the set has been checked carefully - but no fault was found. The problem was obviously caused by a scratched, dirty or copy-protecte

13、d 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

14、CLEANING Because the material of the lens is synthetic and coated with a special anti-reflectivity layer, cleaning must be done with a non-aggressive cleaning fluid. It is advised to use “Cleaning Solvent The actuator is a very precise mechanical component and may not be damaged in order to guarante

15、e its full function. Clean the lens gently (dont press too hard) with a soft and clean cotton bud moistened with the special lens cleaner. The direction of cleaning must be in the way as indicated in the picture below. Before touching the lens it is advised to clean the surface of the lens by blowin

16、g clean air over it. This to avoid that little particles make scratches on the lens. INSTRUCTIONS ON CD PLAYABILITY 1 - 7 How to read software version, 1. Plug A/C to power on and under NO DISC status, press and hold PLAY and DBB buttons for 5 seconds, LCD Display shows existing CD software version

17、CD - V029 and MCU software version “MCU - 013”. SERVICE TEST PROGRAM 2-1 2-1 3-13-1 SET BLOCK & WIRING DIAGRAM MAIN & TUNER &HEAD- PHONE BOARD TABLE OF CONTENTS Main Board Layout Top View .5-2 Main Board Layout Bottom View .5-3 Tuner Board Layout Diagram .5-4 Headphone Board Layout Diagram .5-5 Circ

18、uit Diagram .5-6 4-14-1 4-24-2 PCB LAYOUT - MAIN BOARD (TOP VIEW) 4-34-3 PCB LAYOUT - MAIN BOARD (BOTTOM VIEW) 4-44-4 PCB LAYOUT - TUNER BOARD (ONLY FOR REFERENCE, MODULE SWAP ) 4-5 4-5 LAYOUT DIAGRAM - HEADPHONE BOARD 4-6 4-6 CIRCUIT DIAGRAM - MAIN & TUNER & HP BOARD MCU & USB BOARD TABLE OF CONTEN

19、TS MCU Board Layout Top View .5-2 MCU Board Layout Bottom View .5-3 USB Jack Board Layout Diagram .5-4 Circuit Diagram .5-5 5-15-1 5-25-2 PCB LAYOUT - MCU BOARD (TOP VIEW) 5-35-3 PCB LAYOUT - MCU BOARD (BOTTOM VIEW) 5-4 5-4 LAYOUT DIAGRAM - USB BOARD 5-5 5-5 CIRCUIT DIAGRAM - MCU & USB BOARD PANEL P

20、CB BOARD TABLE OF CONTENTS Layout Top View .6-2 Layout Bottom View .6-3 Circuit Diagram .6-4 6-16-1 6-2 PCB LAYOUT - PANEL PCB BOARD (TOP VIEW) 6-2 6-3 PCB LAYOUT - PANEL PCB BOARD (BOTTOM VIEW) IC701 6-3 6-4 CIRCUIT DIAGRAM - PANEL PCB BOARD 6-4 18 C 6 5 4 7 8 9 19 17 14 1 13 10 12 16 11 15 D E 2120 B A 3 2 F SET MECHANICAL EXPLODED VIEW 7 - 1 7 - 1 8 - 1 REVISION LIST 1.0 Manual 3141 785 35350 Initial Service Manual released.