Philips-MCD-289-Service-Manual电路原理图.pdf

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1、Version 1. 4MCD289ServiceManualDVD Micro System Published by DB 0824 Service Audio Printed in The Netherlands Subject to modificationCopyright 2008 Philips Consumer Electronics B.V. Eindhoven, The Netherlands All rights reserved. No part of this publication may be reproduced, stored in a r etrievals

2、ystem or transmitted, in any form or by any means, electronic, mechanical, pho tocopying,or otherwise without the prior permission of Philips. CLASS 1 LASER PRODUCT 3141 785 32424Location of PCBS . 1-1Specifications . 1-2Measurement Setup . 1-3Service Aids, Safety Instruction, etc. . 1-4Instructions

3、 On CD Playability . 1-5 to 1-6Software Version Check & Upgrade . 2-1Malfuction Check Chart . 2-2Disassembly Diagram . 3-1Block Diagram . 4-1Wiring Diagram. 4-2VFD/CPU Board . 5Tuner Board . 6Lamp And Headphone Board . 7Radio - Transmit Board . 8Radio - Receive Board . 9Power Board . 10Decode Board

4、. 11Explode View . 12Service Partlist . 13Factory Partlist . 14TABLE OF CONTENTSVersion list . 15LOCATION OF PCBS1-1VERSION VARIATIONS:Type /Versions:Features &Board in used:MCD289Service policy&DISPLAY BOARDTUNER BOARDHEADPHONE BOARDPOWER BOARDDECODE BOARD* TIPS : C - Component Lever Repair.M - Mod

5、ule Lever Repair - UsedCMMMM/05 /12 /55/58 /61 /98Feature diffrenceRDSVOLTAGE SELECTORECO STANDBY - DARKCMMMMCMMMMMMMMMMMMMMMMMMMMMMMMDECODE BOARDTUNER BOARDHEADPHONE BOARDRADIO TRANSMIT BOARDDISPLAY BOARDAMPLIFIERRated Output Power .2 x 15W+1x 50W RMS Signal-to-noise ratio . 65 dBA Frequency respon

6、se . 100Hz 15KHz,3dB Aux Input.0.5V RMS 47kohm DISCLaserType . Semiconductor Disc Diameter. 12cm/8cm Support Disc . .DVD,DivX,CD-DA,CD-R,CD-RW,MP3-CD,WMA-CD Audio DAC .24Bits / 44.1kHz Total Harmonic Distortion . 65dBA TUNER FMTuning Range . 87.5 108 MHz Tuning grid .100K/ 50KHz Sensitivity Mono, 26

7、dB S/N Ratio . 5uV Stereo, 46dB S/N Ratio . 100uV Selectivity . 28dB Image Rejection .25dB Total Harmonic Distortion . 65dBA SPEAKERSSpeaker Impedance . 4ohm Speaker Driver, base .5“ Speaker Driver, tweeter . 3“ Frequency Response . 60 - 20 KHz GENERAL INFORMATION Total Output power . 8 0 W RMS AC P

8、ower . 220-230V / 50Hz/60Hz(/05/12)Operation Power Consumption . 35WStandby Power Consumption .4WEco Standby Power Consumption .1WHeadphone Output . 2X15mW 32ohmUSB Direct . Version 1.1Dimensions Main unit (w x h x d) . 480x370x244mm Speaker box (w x h x d). 472x362x224mmWeightWith Packing. 10 KG Ma

9、in Unit .1.4 KGSpeaker box . . 0.8KGSubwoofer box .3.2KGSpecifications and external appearance aresubject to change without notice.1-2SPESIFICATION . 220V / 50Hz(/93/61).110V-127V/60Hz. 220-240V / 50Hz(/98/55/96). 240V / 50Hz(/79)1-3LF Generator e.g. PM5110RecorderUse Universal Test Cassette CrO2 SB

10、C419 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 and distortion metere.g. Sound Technology ST1700BLRDUTCDUse Audio Signal Disc

11、(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 atmospheric interference all AM-measurements have to be carried out in a Faradays ca

12、ge.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 and distortion metere.g. Sound Technology ST1700BUse a bandpass filter to elim

13、inate 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).Careless handling during repair can reduce lifedrastically.When repairing, make su

14、re 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 restored to its originalcondition and that parts which are identical with those

15、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 ?check playabilitycheck playabilityreturn setCustomer complaint“CD related problem

16、“fast“ lens cleaning123For flap loaders (= access to CD drive possible)cleaning method 4 is recommendedINSTRUCTIONS ON CD PLAYABILITY1-Exchange CDM1 - 4 For description - see following pages1PLAYABILITY CHECKFor sets which are compatible with CD-RW discsuse CD-RW Printed Audio Disc.7104 099 96611TR

17、3 (Fingerprint)TR 8 (600 Black dot) maximum at 01:00playback of these two tracks without audible disturbanceplaying time for: Fingerprint t10secondsBlack dot from 00:50 to 01:10jump forward/backward (search) within a reasonable timeFor all other sets use CD-DA SBC 444A.4822 397 30245TR 14 (600 Black

18、 dot) maximum at 01:15TR 19 (Fingerprint)TR 10 (1000 wedge)playback of all these tracks without audible disturbanceplaying time for: 1000 wedge t10secondsFingerprint t10secondsBlack dot from 01:05 to 01:25jump forward/backward (search) within a reasonable time2CUSTOMER INFORMATIONIt is proposed to a

19、dd 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 remain, the customeris requested to contact the workshop directly. The lens cleaning

20、(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 of the lens is synthetic and coatedwith a special anti-reflectivity layer, cleanin

21、g must be donewith a non-aggressive cleaning fluid. It is advised to use“Cleaning Solvent The actuator is a 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 s

22、pecial lens cleaner.The direction of cleaning must be in the way as indicated inthe picture below.Before touching 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 PLAYABILITY1-(9(56,21

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27、RQILUPZKLFKPHDQV2.WRXSJUDGHWKH3ODEDFN3UHIHUHQFHSDJH79WSH $XGLR6XEWLWOHLVFPHQX3DUHQWDO5HVHW2-2MALFUCTION CHECK CHART2-2*In case automatic wireless connection fails(include the case of after repairing)you can,1.Enter standby modea.for MCD289/12/58 , Press and hold Standby Key from Echo Standby to ente

28、r Standby mode , Clock or “_._“ shown on VFD.b.for MCD289/98/55/79 , Press Standby key to enter Standby mode.2.press and hold key on the set for 3 seconds until PAIRING appears on the display.3.press and hold PAIR on the subwoofer until PAIR OK appears on the display.4.switch on the system for automatic setup of wireless connection.