Philips-DC-910-DC-910-W-Service-Manual电路原理图.pdf

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1、Version 1.2DC910W/373141 785 32652Docking Entertainment SystemDC910/37/12/05/98Published by LX 0830 Service Audio Subject to modificationCopyright 2008 Philips Consumer Electronics B.V. Eindhoven, The NetherlandsAll rights reserved. No part of this publication may be reproduced, stored in a retrieva

2、lsystem or transmitted, 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. .3-1Block diagr

3、am .4-1Wiring diagram .4-2 Main boardCircuit diagram .5-1 Layout diagram .5-2.5-3MCU boardCircuit diagram .6-1.6-3 Layout diagram .6-4.6-5AUX boardCircuit diagram .7-1 Layout diagram .7-2Key boardLayout diagram .8-1Exploded view diagram .9-1Mechanical parts list .9-2.9-3Electrical parts list.10-1.10

4、-3AMPLIFIEROutput power . 2 x 15 W RMSSignal-to-noise ratio . 70 dBAFrequency response . 20 Hz 20 KHz, 3 dBInput sensitivity AUX . 0.5 V (max. 2 V)Impedance loudspeakers . 4 Impedance headphones . 32 Output power headphones . 50 mWTUNERFM wave range . 87.5 108 MHzAntennaFM . 75 wireUSB PLAYER/SD/MMC

5、 CARDUSB . 12Mb/s,V1.1. support MP3 and WMA filesNumber of albums/folders . maximum 99Number of tracks/titles. maximum 400GENERAL INFORMATIONAC Power .100 240 V, 50/60 HzDimensions (w x h x d) . 210 x 200 x 567 (mm)Weight . 3 kgStandby power consumption . 2 WEco power standby . 1 WSpecifications and

6、 external appearance aresubject to change without notice.TECHNICAL SPECIFICATION1 - 2Type /Versions:FeaturesBoard in used:DC910/DC910WService policyMCU BOARDMAIN BOARDAUX BOARDKEY BOARD* TIPS : C - Component Lever Repair.M - Module Lever Repair- Used/05 /12 /5589/16/37/Feature diffrenceRDSVOLTAGE SE

7、LECTORECO STANDBY - DARKCCType /Versions:DC910/DC910W/05 /12 /5589/16/37/CVERSION VARIATION39/39/CCCCCCCCCCCCC1-3LF 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 ST170LRDU

8、Tor 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 and disto

9、rtion 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 e.g. PM

10、5326Ri=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 SETUP1-4SERVICE AIDS

11、GB 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 components

12、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 least 10 min

13、utesYplayabilityok ?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 recommendedINSTRUCTIONS ON C

14、D 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 disturbanceplaying

15、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 disturbance

16、playing 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 fault was

17、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 printingis

18、 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 very pre

19、cise 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 touching th

20、e 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 - MAIN BOARD