Philips-MCD-183-Service-Manual电路原理图.pdf

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1、DVD Micro System TABLE OF CONTENTS3141 785 34011SW 11312011MCD183RecordableReWritableLocation of PC Boards . 1-1Electronic Specification . 1-2Measurement Setup . 1-3Service Aids. 1-4Instruction On CD Playability . 1-5 to 1-6Software Version Check & Upgrade . 2-1Malfuction Check Chart . 2-2Disassembl

2、y Diagram. 3-1Block Diagram . 4-1Wiring Diagram . 4-2Small Board . 5Circuit diagram . 5-1Layout diagram . 5-1LCD Display Board . 6Circuit diagram . 6-1Layout diagram . 6-2Power Board . 7Circuit diagram . 7-1 to 7-2Layout diagram . 7-3Decoder Board . 8Circuit diagram . 8-1 to 8-7Layout diagram . 8-8E

3、xploded View . 9-1Service Partlist . 10-1 to 10-2Factory Partlist . 11-1Revision list. 12-1Version 1.1Location of PC BoardsVERSION VARIATION S:Type /Versions:FeaturesBoard in used:MCD183Service policyUSB/HEADPHONE BOARDPOWER BOARDLCD DISPLAY BOARDDECODER BOARD* TIPS : C - Component Level Repair.M -

4、Module Level Repair- Used/55/55/77/77/61/61/79/79/93/93/94/94/96/96/98/98/37/37/12/12/05/05Feature diffrenceRDSTDSVOLTAGE SELECTORECO STANDBY - DARKCCM/C M/CM MMMCM/CMMM/CM/CMMType /Versions:MCD183Decoder BoardVFD Display Board Power BoardUSB/Headphone Board1-1M/CM/CMMM/CM/CMMAMPLIFIERRated Output P

5、ower . 50W+2X25W RMSSignal-to-noise ratio .65dBAFrequency response . 100Hz-15kHz 3dBAux Input . 0.5V/ RMS 47kohmDISCLaser Type . SimeconductorDisc Diameter . 12cm/8cmSupport Disc .CD-DA,CD-R,CD-RW,MP3,DVD,DVD-RW,DVD+RWAudio DAC .1kHzTotal Harmonic Distortion . 65dBA.TUNERFM Tuning Range . 87.5-108 M

6、HzTuning grid . 50KHzSensitivity Mono, 80dB S/N Ratio . 5uV. Stereo, 80dB S/N Ration . 100uVSelectivity . 22dBImage Rejection . 25dBTotal Harmonic Distortion . 3%Signal to Noise Ration . 65dBASPEAKERSSpeaker Impedance . 2x4ohm+8ohme.Speaker Driver, base .5”Speaker Driver, tweeter . 3”Frequency Respo

7、nse . 100Hz +5dB+/-5 15KHzGENERAL INFORMATIONTotal Output power .100W RMSAC Power .230V / 50Hz.Operation Power Consumption . 45WStandby Power Consumption . 6WEco Standby Power Consumption . 1WHeadphone Output . 2x15mW 32ohm.USB Direct . Version 2.0Dimensions Main unit (w x h x d) . 200x125x270mm Spe

8、aker box (w x h x d) . . 135x255x150mm SUBwoofer(w x h x d) .160x245x245mmWeight With Packing . 8.5KG Main Unit .1.3 KG Speaker box .1.25x2KG SUBwoofer. . 2.7KGSpecifications and external appearance aresubject to change without notice.1-2Electronic Specification1-3LF Generator e.g. PM5110RecorderUse

9、 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 and distortion metere.g. Sound Technology ST1

10、700BLRDUTCDUse 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 atmospheric interference all AM-measurements have to

11、 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 and distortion metere.g. Sound Technology ST17

12、00BUse 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).Careless handling during repair can reduce lifedra

13、stically.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 restored to its originalcondition and that parts

14、 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 ?check playabilitycheck playabilityreturn setCusto

15、mer complaint“CD related problem“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 Prin

16、ted 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 t10secondsBlack dot from 00:50 to 01:10 jump forward/backward (search) within a reasonable timeFor all other sets use CD-DA SBC 4

17、44A.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 t10secondsFingerprint t10secondsBlack dot from 01:05 to 01:25 jump forward/backward (search) within a reasonable time2CUS

18、TOMER 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 remain, the customeris requested to contact the w

19、orkshop 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 of the lens is synthetic and coatedwith a spec

20、ial 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 andmay not be damaged in order to guarantee its full function.Clean the lens gently (dont press too hard) with a soft andc

21、lean 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 clean thesurface of the lens by blowing clean air over it.This to avoid that little particles make scratches onthe lens.INST

22、RUCTIONS ON CD PLAYABILITY1-2-1Software Version Check & UpgradeUpgrade softwareSoftware version and date checkVer: MCD183/xx VxxxDate: Mmm dd yyyyTime: hh:mm:ss1, Power on the unit whithout loading the USB and Disc in it, then press the “811502” on remote controlUpgradingRead USB1.Download the softw

23、are from Philips support website:2. Load the CD Disc or USB device with software,Software upgrade procedurestarts automaticallyWaiting a minuteSoftware upgrade finish.http:/ powerCheck if the Power Cordis connectedCheck the AC outletNo soundCheck if the speakers are connected correctlyCheck if the M

24、ainBoard has provided voltageCheck if the Main Board has provided voltageReplace a new oneSwitch on the TimerNo displayCheck if the Dc outputprovided voltage (about 34.5V)Adjust the volume Check the files or folders inUSB or others devices has not exceeded the certain limitTime/Clock does not workPl

25、ug in the power cordReset the Time/ClockReplace a new Power Board Check if the USB or other devices are connectedCheck if the USB or otherdevices are incompatibleCheck the data wire which connected the Main Board,if has provided voltageCheck if has voltagesupply to the USB BoardCheck if the CPU ICha

26、s provided voltageCheck if the VFD Boardhas provided voltageNoReplace a new oneNoReplace a new AC Cable NoReplace a new one NoReplace the IC PT6311/SC16311/CD16311NoReplace the Main BoardNoNoCheck if the CPU IChas provided voltageReplace the Main BoardNoYYYYYYYYMalfunction Follow Check Chart2-2 2-2D

27、isassembly Diagram3-13-1B,Remove the top cabinet.B1.Loose 2pcs screws(3 x 12 KB) of the L&R sides(front-end)B2.Loose 2pcs screws(3 x 8 KB) of the L&R sides(back-end)B3.Loose 1pcs screws(3 x 10 FA) of the back sidesC,Loosed 4pcs screws(3 x 10 BA)to removethe Power BoardD,Remove Decoder BoardD1.Loose

28、5pcs screws(3 x 10 FA)D2.Loose 1pcs screw(3 x 8 BA)E,Loose 4pcs screws(3 x 10 PWA)to remove DVD Loader DriverF,Remove Front CabinetF1.Loose 2pcs screws(3 x 10 FA)F2.Loose 1pcs screw(3 x 6 FMTT)G,Loosed 2pcs screws(3 x 6 PWT)to remove Headphone BoardA,Open the DVD tray and then loose 2pcs screws to remove the doorH,Loosed 7pcs screws(3 x 8 PA)to remove the Display BoardACED1AHD2B1B2B3F1F2