Philips-MCD-107-Service-Manual电路原理图.pdf
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1、Version 1.2MCD1073141 785 34382DVD Micro Theater-/51/93/98Published by LX 1102 Service Audio Subject to modificationCopyright 2009 Philips Consumer Electronics B.V. Eindhoven, The NetherlandsAll rights reserved. No part of this publication may be reproduced, stored in a retrievalsystem or transmitte
2、d, in any form or by any means, electronic, mechanical, photocopying,or otherwise without the prior permission of Philips.CONTENTSTechnical specification .1-2Service measurement setup.1-3Service aids .1-4Instructions on CD playability .2-1. 2-2Disassembly diagram. .5-1Block diagram.3-1Wiring diagram
3、 .4-1Main boardCircuit diagram .6-1.6-2Layout diagram.6-3.6-4DVD boardCircuit diagram .7-1.7-5Layout diagram.7-6Exploded view diagram .9-1Mechanical parts list.9-2Electrical parts list.10-1.10-2Front boardCircuit diagram .8-1Layout diagram. 8-2.8-3FMTuning range 87.5 - 108 MHzTuning grid 50 kHzSensi
4、tivity- Mono, 26 dB S/N ratio 55 dBSpeakersSpeaker Impedance 4ohmSpeaker Driver 3.5”wooferSensitivity 82dB/m/WGeneral informationAC power 220 - 230 V, 50 HzOperation powerconsumption 20 WStandby powerconsumption 65 dBAux input 0.5 V RMS 20 kohmDiscLaser type SemiconductorDisc diameter 12 cm/8 cmVide
5、o decoding MPEG-2/MPEG-1Video DAC 10 bitsSignal system PAL/NTSCVideo format 4:3/16:9Video S/N 56 dB (minimum)Composite videooutput1.0 Vp-p, 75 ohmS-Video output Y- 1.0 Vp-p, 75 ohmC- 0.286 Vp-p, 75 ohmAudio DAC 24 bits / 96 kHzTotal harmonicdistortion 65 dBATECHNICAL SPECIFICATION1 - 2Type /Versions
6、:FeaturesBoard in used:MCD107Service policyFRONT BOARDMAIN BOARDTUENR BOARDDVD BOARD* TIPS : C - Component Lever Repair.M - Module Lever Repair- Used/05 /51 /5589/16/93Feature diffrenceRDSVOLTAGE SELECTORECO STANDBY - DARKCCType /Versions:MCD107/05 /51 /5589/16/MMVERSION VARIATION/93C&MC&MC&MC&MC&MC
7、&MC&MC&M1-3LF 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 ST170LRDUTor Universal Test Cassette Fe SBC420 4822 397 30071LEVEL METERe.g. Sennheiser UPM550with FF-filterS/N
8、 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 and distortion metere.g. Sound Technology ST1700BFrame aeriale.g. 7122 707 89001Tuner AM (MW,LW)To avoid atmosp
9、heric 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 e.g. PM5326Ri=50:Bandpass250Hz-15kHze.g. 7122 707 48001LF Voltmetere.g. PM2534DUTRF Generator e.g. PM5326S/N
10、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 SETUP1-4SERVICE AIDSGB WARNINGAll ICs and many other semi-conductors aresusceptible to electrostatic discharges (ESD).Care
11、less 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 components and tools also at thispotential.ESDCLASS 1LASER PRODUCTGBSafety regulations require that the set be re
12、stored 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 least 10 minutesYplayabilityok ?Nplayabilityok ?add Info for customer“SET OK“check playabilityNYplayabilityok ?che
13、ck playabilitycheck playabilityreturn setCustomer complaint“CD related problem“fast“ lens cleaning123For flap loaders (= access to CD drive possible)cleaning method 4 is recommendedINSTRUCTIONS ON CD PLAYABILITY2 - 1Exchange CDM1 - 4 For description - see following pages1PLAYABILITY CHECKFor sets wh
14、ich 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 disturbanceplaying time for: Fingerprint 10secondsBlack dot from 00:50 to 01:10 jump forward/backward (search) within a r
15、easonable 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 disturbanceplaying time for: 1000 wedge 10secondsFingerprint 10secondsBlack dot from 01:05 to 01:25 jump forward/
16、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 fault was found.The problem was obviously caused by a scratched, dirty orcopy-protected CD. In case problems rem
17、ain, 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 printingis under responsibility of the Regional Service Organizations.4LIQUID LENS CLEANINGBecause the material
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