Philips-MX-1050-D-Service-Manual电路原理图.pdf

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1、CLASS 1LASER PRODUCTService ManualServiceServiceServiceMX1050D/22TABLE OF CONTENTSPageLocation of pc boards fr Reparaturen sind Original-Ersatzteile zu verwenden.ILe norme di sicurezza esigono che lapparecchio venga rimessonelle condizioni originali e che siano utilizzati i pezzi di ricambioidentici

2、 a quelli specificati.“After servicing and before returning set to customer perform aleakage current measurement test from all exposed metal parts toearth ground to assure no shock hazard exist. The leakage currentmust not exceed 0.5mA.“CLASS 1LASER PRODUCT3122 110 03420GB Warning !Invisible laser r

3、adiation when open.Avoid direct exposure to beam.S Varning !Osynlig laserstrlning nr apparaten r ppnad och sprrenr urkopplad. Betrakta ej strlen.SF Varoitus !Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiinankymttmlle laseristeilylle. l katso steeseen!DK Advarse !Usynlig laserstrling

4、 ved bning nr sikkerhedsafbrydere erude af funktion. Undg udsaettelse for strling.2-1 2-1Check Audio BD powersupply UA1Pin19,12=+/-12V, Pin4,27have signal or notPossible UA1 badcauseCheck Front BD CPU/U5Pin1/SCLKPin63/SCEPin64/SD1Prologic BD U3Pin22/D1Pin23/CLKPin24/CEAudio BD UA1Pin13/CEPin14/D1Pin

5、15/CLPossible UA1 badcause or U5Possible U3 badcauseCheck to Tuner BDControl data signalAudio BD CBL 12/Pin9.10.11.12.13.14NoYesCheck to Tuner BDpower supply Tuner nooutputCheck AudioBD/QA1,QA2Check Front BDCPU/U5Pin49=4.7VPossible CPUbad causeAudio outputNo soundAll channel no soundCheck CBL4BPin4

6、TunerEN=4.7VYesCheck the data from FrontBD CPU U5/Pin 50/STPin 51/PLL SDPin 52/PLL CLKPin 53/PLL DIPin 54/PLL D0Pin 55/PLL CENoPossible CPU U5 badcause damageNo dataCheck AMP BD channeloutput Relay RL1,2,3 isworking or notYesworkingYesworkingYesYesCheck Prologic BDU3/pin3,9,14,17,1,2U4/pin2,19,7,14

7、signalNoPossible causeU3 bad/damageNoNoNot workRepair power supplycircuitCheck R20/10K (+5V up tug)or CPU/U5 damageCheck Front BD CPU/U5Pin5=4.8VDCCheck Prologic BD MUTEcircuit Q15 electrodeB0.7VDCCheck Prologic BDU3,U2,U5,U1 power supplyYesNo SignalNoYesYesNoNoNoACheck protection circuit(AMP BD)IC/

8、U6 Pin6=0VDCPin1=0VDC, Pin20.7VDCCheck power AMP ICU1,2,3,4,5/Pin3=0VDCCheck the channel unnormaloperation power AMP sectionNoPin 2 NoPin 1 NoCheck power supply +/-36VQ2/9015, Q3/9014NoYesCheck Front BD CPUU5/Pin2=4.8VDC or changeCPU/UPD780023QFPYesNoChange Q2/9014Change Q4/8550Check PSU BD Q4electr

9、ode B=0VCheck PSU BDCBL03A PWRSW/Pin6=4.8VNot workingRe-insert and fix thecableNoNoYesChange the fuse12A/250VACRepair/Replace DVDMain BDPossiblePrologic BDU3 damageDVD Audiono outputCheck Prologic BDCBL105.1CH InputCheck all cable is looseor bad INTCheck the Fuse F1 &F2(Amp BD)Check the power Relay(

10、PSU BD) is working ornotCheck PSU BD CBL02APin 1=5V, Pin 3=12V,Pin 5 = -12VYesMX10xxD Repair ChartMain UnitA CBAudio outputNo soundVideo outputNo pictureNo sound &picture outputMX10xxD REPAIR CHART2-22-2CNo Sound& pictureCheck Prologic BD. Video BDAudio BD power supply. test PSUBD CBL02A +/-12VDC, +

11、5VNoOPENYesYesNot WorkNoworkingCheckPSU BD FuseF3,F4,F1Changethe Fuse withsame valueCheckPSU BD connectorJC6=20VACCheckPSU BD powerRelay is working ornotCheck the below data:From Front BD DataU5 Pin 63/SCEPin 64/SDIPin 65/SCLKPrologic BDU3 Pin 24/PCEPin 22/PDIPin 23/PCLKAudio DBUA1 Pin 13/CEPin 14/D

12、IPin 15/CLKVideo BDUV3 Pin 6/CEPin 7/DIPin 8/CLKYesCheck Audio BD CBL13APin4=+12VPin6=-12VPin7=+5VCheckPSU BD DB2diode bridgeU6/7812U7/7912U4/7805NoCheckPSU BDQ2/9014Q4/9014& RLY1Check PSU BD CBL03Pin2/PWR-SW=5VCheckFront BDCPU/U5/Pin48PWR SW=5Vor CPU damage causeYesCheck Power SupplyA/V BD (UL) CBL

13、21B/pin2=5VA/V SCART (CE) CBL21B/pin2=5VACB15/pin13=5VDCB15/pin16=12VBVideo OutputNo signalNoYesIf CBL21B/Pin2 isbad check PSU BDIf CB15 is bad checkDVD Main BDCheck the following:1. CVBS Out/CB16/pin12. (UL) S-Video Out, Y/C, QV3, QV2/c3. (CE) R,G,B, Out, SCART JackPin 15,11,7CVBS-Out/Pin 19NoDVDS-

14、Video (UL)SCART Video (CE)no output1. Check Video BD2. Check S-Video Connection (UL)3. Check SCART Connection (CE)1. CVBS Out check QV12. S-Video check QV2, QV3 (UL)3. R,G,B check QN1, QN2, QN3YesCheck the following:1. cable CB15 CVBS Out/Pin62. S-Video Y/C Pin4,5 (UL)3. R,G,B/Pin 11,10,9 (CE)YesNoC

15、heck DVD BD CPU/ICS1CVBS OUT/Pin64C_OUT/Pin63, Y_OUT/Pin62R_OUT/Pin57, G_OUT/Pin56B_OUT/Pin55NoYesCheck DVD Main BDHS6 cable & connectorpossible is CPU/ICS1/STi5505 damageReplace DVD Main BDCheck VideoBD power supply UV3pin11,10=9Vpin5=-9VCheck UV3/pin14,16V-outCheck VideoBD UV3 Control DataPin6/CE,

16、 Pin7/DI,Pin8/CLKCheck Audio BDCBL13BPin4=12VPin6=-12VYesNoNoCheck Video BDUV1/79L09UV2/78L09+/-9VA/V SCART BD (CE)PS1/pin19 CVBS-OUTCheckQV1, QV2,QV3 & QV4YesPossible Audio BDCBL13A/Pin1/CE,Pin2/DI, Pin3/CLK,connection badPossibleUV3 badcauseNoNoYesC-Videono outputMX10xxD REPAIR CHART2-3 2-3Pinno.1

17、2345678910111213141516171819Function+12VT+12VSGNDGND5VD3.3V5GNDGNDSDASCLIRD25V RESETGNDEXT BCLKEXT DATAEXT DATAVALIDEXT PSTART/ERRORGNDNCVoltageDC/V11.9V11.9V0V0V5.0V3.2V0V0V4.7V4.8V3.2V4.7V0V1.56V0.25V0.35V0V0V-DVD Main Board Connector Data1. DVD Main Board Conn. HX1(To Mechanical Loader) Note 13.

18、DVD Main Board Conn. HS6(To A/V Board) Note 32. DVD Main Board Conn. JP1(To PSU Board) Note 24. DVD Main Board Conn. HS5(To Front Board) Note 4Note:1. When the voltages of conn. HX1 are as per table the problem in the Loader,otherwise the problem is in the DVD Main board.2. When the voltages of conn

19、. JP1 are as per table the problem in the DVD Main board,otherwise the problem is in the PSU board.3. When the voltages of conn. HS6 are as per table the problem in the DVD Main board,otherwise the problem is in the A/V board.4. When the voltages of conn. HS5 are as per table the problem in the DVD

20、Main board,otherwise the problem is in the Front board.Pinno.12345678910111213141516Function12V5VA16/94/35VDGNDREDGREENBLUEGNDGNDCVBSCYGNDSPDIFGNDVoltageDC/V11.9V5V4V0V5.0V0V3.2V3.2V3.2V0V0V0.73V0.52V0.67V0V1.6V0VPinno.12345678910FunctionNC3.3V5VDGNDGND5VA12V5GND12VS12VTVoltageDC/V-3.2V5.1V0V0V5.0V1

21、1.9V0V11.9V11.9VPinno.123456FunctionGNDCTSRTSTXDRXD5VDVoltageDC/V0V0V0V3.0V4.9V4.9VFCheck the Discfor dust or damageCheck DVD Loaderpower supply: DVD BD HX1Pin5=5.2V, Pin6=3.3V,Pin1=8V, Pin2=12V,Pin12=5VCheck DVD BD HX1Pin14-X.BCLK, Pin15-X.DATA,Pin16-X.DATAVALID, Pin17-X.ERRORdata and circuit conne

22、ctionNoNoYesPossible DVD BD CPU* damageReplace DVD BDPossible DVD Loader damageReplace Loader & test againNoYesNoRepair power supply circuitChange to other DiscCannot read the discor IntermittentCheck the Discis off center or notYesEMechanical noiseduring playing discReset the Discinto the centerChe

23、ck is theresomething inside theDVD Loader or notYes Open the tray& check it outNoNoPossible DVD Loader damageReplace the DVD LoaderTray cannot openDNoYesCheck B600Connector Pin1,2=+/-6VDCPossible Tray motor defective.Proceed to open tray manually(see Chapter 3)Replace the DVD Loader Check DVD BD IC6

24、0/LB1641Pin7/Vcc=11.8VDC, Pin6/OUT=3.1VDC,Pin5/IN=3.1VDC,Pin7=0V During the tray is open or closeYesRepair MotorDriver CircuitNoCheck DVD BD HS5ConnectorPin4 T_D=3.1VDCPin 5 R_D=3.1VDCYesCheckFront BD CPUU5/Pin21, 22NoCheckCPU*/Pin5/SLIDER_OUTCPU*/Pin6/SLIDER_INCPU*/Pin7/SLIDER_OPEN/CLOSECircuitRepa

25、ir thecircuitconnectionNoPossible CPU* damageReplace DVD BDMX10xxD Repair ChartDVD SectionD JBTray cannotopernVideo outputNo Signal(see page 10-2)No SoundDigital no outputE FCannot readDisc orIntermittentMechanicalNoiseC HGNo sound &picture(see page 10-2)DVD noFunctionNo SoundAnalog no output*Note:

26、BD = BoardCPU = DVD BD ICS1/STi5505DVD BD = DVD Main BoardMX10xxD REPAIR CHART - DVD SECTION2-42-4JNo SoundDigital no outputCheckA/V S-Video BD (UL) QA4/electrode EA/V SCART BD (CE) QA4/electrode ESignal outputCheckDVD BD CPU*/Pin47 SPDIFSignal outputNoYesYesPossible Optical or coaxial damageor conn

27、ection cable damageCheck A/V BD S-Video / SCARTQA3, QA4Possible CPU* damageReplace DVD BDNoHCheck supply power1. CPU pin48,49 VDDA=3.3V2. ICA7/7805/5VA (D/A change power supply)3. QA13 (pre-amp supply +12V)All channelno outputNo SoundAnalog no outputOne of the channelno outputNoCheck channelmute cir

28、cuitYesRepairMUTE circuitNoCheck channelpre-amp circuitYesRepairpre-amp circuitNoCheck channelD/A change circuitYesRepairD/A decodecircuitCheck correspondingchannel DATA signalpin44/pcm-out0=FL+FRpin24/pcm-out1=C+SUBpin21/pcm-out2=SL+SRRepaircorresponding channelsupply powerYesNoPossible CPU* damage

29、Replace DVD BDCheck RS29/RS78is 5V or not1. CPU* damage2. ICA7/7805 damageReplace DVD BDNoNoYesCheck D/A changeCPU*/PCM_LRCLK/Pin46/PCM_CLK/Pin45/PCM_SCLK/Pin43/PCM-OUT/Pin21,24,44Check MUTE circuitICS1/A-MUTE/Pin199MUTE=LBY PASS=HPossible CPU* damageReplace DVD BDNoYes*Note: BD = BoardCPU = DVD BD

30、ICS1/STi5505DVD BD = DVD Main BoardGDVD no functionNoCheck DVD BD powersupply JP1 connector DATA(see page 10-3)YesCheck Front BDCPU U5/pin2YesYesSoftware reset OKNoCheck DVD BD1. crystal XS1/27MHz2. CPU*/pin118=27MHzYesCheck DVD BD1. ICS3/74HCV04 pin14=3.3V or XS1 bad2. ICS3 damageReplace DVD BDYesC

31、heck CIM2,ICM4,ICM8IN or OUT DATAReplace DVD BDCheck PSU BD CBL03Aconnector pin7 DVDpower=4.8VDCNoChange DVDLoader checkCheck DVD BD HX1Pin9/SDA=4.7V, Pin10/SCL=4.7V &Loader power supplyPossible DVD Loader damageReplace DVD LoaderNoNoCheck PSU BDU8, U3, U4, U5, U6voltagesYesYesCheck DVD BD HS5 conne

32、ctorpin4 TXD=3.1VDCpin5 RXD=4.9VDCHS5 DATA (see page 10-3)NoCheck Front BDCPU U5/pin21,22Check CPU* power supplypin1,18,34,75,86,95,102,119,130,139,149,159,171,184,208=3.3VICM4, ICM8 power supplyICM2/pin37,1,7,25,38,44=3.3VNoCheck corresponding power supplycircuit or change corresponding ICCheck DVD BD FlashICM2/39VF800APin11/WE=3.1VPin26/CE=2.3VNoCheck circuit connectionor change ICM2.Replace DVD BDYesYesCheck DVD BD ICM8/ICM4Pin34/CKE=3.1VDC, Pin14/LDOM,Pin15/WE, Pin16/CAS,Pin17/RAS, Pin18/CS,Pin35/SDCLK, Pin36/VDOMNoCheck circuit connectionMX10xxD REPAIR CHART - DVD SECTION