Philips-MCM-166-Service-Manual电路原理图.pdf

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1、Version 1.4MCM1663141 785 33134Micro Hi-Fi System-/12/55/05/77Published by LX 1206 Service Audio Subject to modificationCopyright 2010 Philips Consumer Electronics B.V. Eindhoven, The NetherlandsAll rights reserved. No part of this publication may be reproduced, stored in a retrievalsystem or transm

2、itted, in any form or by any means, electronic, mechanical, photocopying,or otherwise without the prior permission of Philips.CONTENTSTechnical specification .1-2Version variations .1-2Service measurement setup.1-3Service aids .1-4Instructions on CD playability .2-1.2-2Disassembly diagram. .3-1Block

3、 diagram .4-1Wiring diagram .4-2 MCU boardCircuit diagram .5-1 Layout diagram .5-2.5-3Main boardCircuit diagram .6-1.6-3 Layout diagram .6-4.6-5USB boardCircuit diagram .7-1 Layout diagram .7-2Exploded view diagram .8-1This service manual is only for MCM166/12/55/05/77This is previous generation mod

4、els.The serial number is:before LM011039227020(only for/12) before LM001039092086(only for /55/77)TunerTuning Range FM: 87.5 - 108MHz;MW: 531 - 1602kHzTuning grid 50KHzSensitivity- Mono, 26dB S/N Ratio- Stereo, 46dB S/N Ratio43 dBfSearch Selectivity 28dBfTotal Harmonic Distortion 55dBSpeakersSpeaker

5、 Impedance 4ohmSpeaker Driver 3.5”woofer+0.8” tweeterSensitivity 82dB/m/WGeneral informationAC power 220 - 230V, 50HzOperation PowerConsumption20WStandby PowerConsumption65dBAux Input 0.5V RMS 20kohmDiscLaserType SemiconductorDisc Diameter 12cm/8cmSupport Disc CD-DA, CD-R, CD-RW,MP3-CD,WMA-CDAudio D

6、AC 24Bits / 44.1kHzTotal HarmonicDistortion65dBATECHNICAL SPECIFICATION1 - 2Type /Versions:FeaturesBoard in used:MCM166(for first generation)Service policyMCU BOARDMAIN BOARD* TIPS : C - Component Lever Repair.M - Module Lever Repair- Used/05 /12 /5589/16/37/Feature diffrenceRDSVOLTAGE SELECTORECO S

7、TANDBY - DARKCCType /Versions:MCM166(for first generation)/05 /12 /5589/16/37/VERSION VARIATION39/39/USB BOARD CCCCCCC1-3LF Generator e.g. PM5110RecorderUse Universal Test Cassette CrO2 SBC419 4822 397 30069LEVEL METERe.g. Sennheiser UPM550with FF-filterS/N and distortion metee.g. Sound Technology S

8、T170LRDUTor Universal Test Cassette Fe SBC420 4822 397 30071LEVEL METERe.g. Sennheiser UPM550with FF-filterS/N and distortion metere.g. Sound Technology ST1700BLRDUTCDUse Audio Signal Disc(replaces test disc 3)SBC429 4822 397 30184Bandpass250Hz-15kHze.g. 7122 707 48001LF Voltmetere.g. PM2534DUTS/N a

9、nd distortion metere.g. Sound Technology ST1700BFrame aeriale.g. 7122 707 89001Tuner AM (MW,LW)To avoid atmospheric interference all AM-measurements 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

10、 e.g. PM5326Ri=50:Bandpass250Hz-15kHze.g. 7122 707 48001LF Voltmetere.g. PM2534DUTRF Generator e.g. PM5326S/N and distortion metere.g. Sound Technology ST1700BUse a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz).Ri=50:Tuner FMMEASUREMENT SETUP1-4SERV

11、ICE AIDSGB WARNINGAll ICs and many other semi-conductors aresusceptible to electrostatic discharges (ESD).Careless handling during repair can reduce lifedrastically.When repairing, make sure that you areconnected with the same potential as the massof the set via a wrist wrap with resistance.Keep com

12、ponents and tools also at thispotential.ESDCLASS 1LASER PRODUCTGBSafety regulations require that the set be restored to its originalcondition and that parts which are identical with those specified,be usedSafety components are marked by the symbol!.Lead freeSet remains closed!NYPlay a CD for at leas

13、t 10 minutesYplayabilityok ?Nplayabilityok ?add Info for customer“SET OK“check playabilityNYplayabilityok ?check playabilitycheck playabilityreturn setCustomer complaint“CD related problem“fast“ lens cleaning123For flap loaders (= access to CD drive possible)cleaning method 4 is recommendedINSTRUCTI

14、ONS ON CD PLAYABILITY2 - 1Exchange CDM1 - 4 For description - see following pages1PLAYABILITY CHECKFor sets which are compatible with CD-RW discsuse CD-RW Printed Audio Disc.7104 099 96611TR 3 (Fingerprint)TR 8 (600 Black dot) maximum at 01:00 playback of these two tracks without audible disturbance

15、playing time for: Fingerprint 10secondsBlack dot from 00:50 to 01:10 jump forward/backward (search) within a reasonable timeFor all other sets use CD-DA SBC 444A.4822 397 30245TR 14 (600 Black dot) maximum at 01:15TR 19 (Fingerprint)TR 10 (1000 wedge) playback of all these tracks without audible dis

16、turbanceplaying time for: 1000 wedge 10secondsFingerprint 10secondsBlack dot from 01:05 to 01:25 jump forward/backward (search) within a reasonable time2CUSTOMER INFORMATIONIt is proposed to add an addendum sheet to the set whichinforms the customer that the set has been checkedcarefully - but no fa

17、ult was found.The problem was obviously caused by a scratched, dirty orcopy-protected CD. In case problems remain, the customeris requested to contact the workshop directly. The lens cleaning (method 3) should be mentioned in theaddendum sheet.The final wording in national language as well as the pr

18、intingis under responsibility of the Regional Service Organizations.4LIQUID LENS CLEANINGBecause the material of the lens is synthetic and coatedwith a special anti-reflectivity layer, cleaning must be donewith a non-aggressive cleaning fluid. It is advised to use“Cleaning Solvent The actuator is a

19、very precise mechanical component andmay not be damaged in order to guarantee its full function.Clean the lens gently (dont press too hard) with a soft andclean cotton bud moistened with the special lens cleaner.The direction of cleaning must be in the way as indicated inthe picture below.Before tou

20、ching the lens it is advised to clean thesurface of the lens by blowing clean air over it.This to avoid that little particles make scratches onthe lens.INSTRUCTIONS ON CD PLAYABILITY2 - 2DISASSEMBLY DIAGRAM VIEW3 - 1 3 - 1SET BLOCK DIAGRAM4 - 1 4 - 1SET WIRING DIAGRAM4 - 2 4- 25 - 15 - 1CIRCUIT DIAGRAM - MCU BOARD