Philips-MCD-909-Service-Manual电路原理图.pdf

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1、DVD Micro Theatre TABLE OF CONTENTS3141 785 33540DB 09082009MCD909Location of PC Boards . 1-1Electronic Specification . 1-2Measurement Setup . 1-3Service Aids. 1-4Software Version Check & Upgrade . 2-1Malfuction Check Chart . 2-2Disassembly Diagram. 3-1Block Diagram . 4-1Wiring Diagram . 5-1Display

2、Board . 6Circuit diagram . 6-1Layout diagram . 6-2Prepositive Board . 7Circuit diagram . 7-1Layout diagram . 7-2AMP Board . 8Circuit diagram . 8-1Layout diagram . 8-2ECO Control Board Diagram . 9Small Board Diagram .10Decoder Board .11Circuit diagram . 11-1 to 11-8Layout diagram . 11-9Exploded View

3、.12DVD Exploded View . 12-1AMP Exploded View . 12-2Service Partlist . 13-1 to 13-2Factory Partlist . 14-1 to 14-6Version 1.0Location of PC Boards1-1Type /Versions:FeaturesBoard in used:MCD909Service policyBUTTON BOARDAMP BOARDENCODER BOARDVACUUM TUBE LAMP BOARD PREPOSITIVE BOARDDISPLAY BOARDUSB BOAR

4、DECO-POWER BOARDLAMP BOARDDECODER BOARD* TIPS : C - Component Level Repair.M - Module Level Repair- Used/55/55/58/58/61/61/79/79/93/93/94/94/96/96/98/98/37/37/12/12/05/05Feature diffrenceRDSTDSVOLTAGE SELECTORECO STANDBY - DARKMCCMMMMCMType /Versions:MCD909DISPLAY BOARDUSB BOARDDECODER BOARDSCART BO

5、ARDLAMP BOARDPUSH KEY BOARDVACUUM TUBE LAMPBOARDENCODER BOARDLAMP BOARD(Same location on the other side) (Same location on the other side) AMP BOARDM1-2SpecificationsAMPLIFIERRated Output Power . 2 x 75W RMSS/N .=65dBAFrequency response . 40Hz-20KHz,3dBAux Input . 0.5V RMS 47kohmDISCLaser Type . Sem

6、iconductorDisc Diameter . 12cm/8cmSupport Disc . DVD,Divx,CD-DA,CD-R,CD-RW,MP3,WMAAudio DAC. 24Bits / 44.1kHzTotal Harmonic Distortion . 4Hz - 20kHz (44.1kHz)S/N .65dBATUNERFM Tuning Range . 87.5 108 MHzTuning grid . 50K/100KHzSensitivity- Mono,26dB S/N . 5uV- Stereo,46dB S/N . 100uVSelectivity . 33

7、dBImage Rejection . 25-30 dBTotal Harmonic Distortion . 2-3%S/N .33dBASPEAKERSSpeaker Impedance .4ohmSpeaker Driver,base . 5 1/4“Speaker Driver,tweeter . RT-2Frequency response . 60Hz - 20 KHzGENERAL INFORMATIONTotal Output Power . 150 W RMSAC Power .220V-230V / 50Hz(/12)240V/50Hz(/79).220V / 50Hz(/

8、93).220V / 60Hz(/61)Operation Power Consumption . 85WStandby Pwer Consumption . 4WEco Standby Pwer Consumption.NAUSB Direct. Version 1.1Dimensions- Main unit (w x h x d) .280X130X290mm- Speaker box(w x h x d) . 185x305x225mmWeight- With Packing .24.5 KG- Main unit . 6.78KG- Speaker box .14KG- Subwoo

9、fer .NA*Specifications and external appearance are subject to change without notice.1-3LF 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 Cassett

10、e 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 distortion metere.g. Sound Tech

11、nology 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. PM5326Ri=50:Bandpass250Hz-15

12、kHze.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 AIDSGB WARNINGAll ICs and many

13、 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 and tools also at thispote

14、ntial.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 minutesYplayabilityok ?Nplaya

15、bilityok ?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 CD PLAYABILITY1-Exchange CD

16、M1 - 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 time for: Fingerprint t10seco

17、ndsBlack 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 disturbanceplaying time for: 1000 wedge

18、 t10secondsFingerprint t10secondsBlack 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 found.The problem was obvi

19、ously 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 under responsibility of t

20、he 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 precise mechanical component

21、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 the lens it is advised to cl

22、ean thesurface of the lens by blowing clean air over it.This to avoid that little particles make scratches onthe lens.INSTRUCTIONS ON CD PLAYABILITY1-2-1Software Version Check & UpgradeUpgrade softwareSoftware checkPress the “display” button quartic continuously on remote control,display showing as

23、below:1.Download the software from Philips support website2.Put in the Software CD Disc or USB,untill hear a long ding voice while it is loading. Softwareupgrade finish.http:/ dyyyy2-2 Malfunction follow check chartDisassembly Diagram - DVD Part3-13-1A. Loosen screws 9 PCS 3 X 6 BMTT to remove botto

24、m chassisB.Loosen screws 2 PCS 3 X 6 FMTTC.Loosen screws 5 PCS 3 X 10 BA D.Loosen screws 2 PCS 3 X 10 BAE.Loosen screws 2 PCS 3 X 10 BTHF. Loosen screws 1 PCS 3 X 4 FMTTG.Loosen screws 2 PCS 3 X 6 BMTTH.Loosen screws 6 PCS 3 X 10 BTHI . Loosen screws 5 PCS3 X 6 BM J. Loosen 6PCS 312BTH screws to dissassembly mechanismK. Loosen 9PCS 2.68PA screws to disassembly display boardBCDEFGH