Philips-MX-1050-D-Service-Manual(1) 电路图 维修手册.pdf

《Philips-MX-1050-D-Service-Manual(1) 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Philips-MX-1050-D-Service-Manual(1) 电路图 维修手册.pdf（59页珍藏版）》请在收音机爱好者资料库上搜索。

1、CLASS 1 LASER PRODUCT Service Manual Service Service Service Service Service MX1050D/22 TABLE OF CONTENTS Page Location of pc boards fr Reparaturen sind Original-Ersatzteile zu verwenden. I Le norme di sicurezza esigono che lapparecchio venga rimesso nelle condizioni originali e che siano utilizzati

2、 i pezzi di ricambio identici a quelli specificati. After servicing and before returning set to customer perform a leakage current measurement test from all exposed metal parts to earth ground to assure no shock hazard exist. The leakage current must not exceed 0.5mA. CLASS 1 LASER PRODUCT 3122 110

3、03420 GB Warning ! Invisible laser radiation when open. Avoid direct exposure to beam. SVarning ! Osynlig laserstrlning nr apparaten r ppnad och sprren r urkopplad. Betrakta ej strlen. SFVaroitus ! Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina nkymttmlle laseristeilylle. l katso

4、steeseen! DK Advarse ! Usynlig laserstrling ved bning nr sikkerhedsafbrydere er ude af funktion. Undg udsaettelse for strling. 2-12-1 Check Audio BD power supply UA1 Pin19,12=+/-12V, Pin4,27 have signal or not Possible UA1 bad cause Check Front BD CPU/U5 Pin1/SCLK Pin63/SCE Pin64/SD1 Prologic BD U3

5、Pin22/D1 Pin23/CLK Pin24/CE Audio BD UA1 Pin13/CE Pin14/D1 Pin15/CL Possible UA1 bad cause or U5 Possible U3 bad cause Check to Tuner BD Control data signal Audio BD CBL 12/Pin 9.10.11.12.13.14 No Yes Check to Tuner BD power supply Tuner no output Check Audio BD/QA1,QA2 Check Front BD CPU/U5 Pin49=4

6、.7V Possible CPU bad cause Audio output No sound All channel no sound Check CBL4B Pin4 Tuner EN=4.7V Yes Check the data from Front BD CPU U5/Pin 50/ST Pin 51/PLL SD Pin 52/PLL CLK Pin 53/PLL DI Pin 54/PLL D0 Pin 55/PLL CE No Possible CPU U5 bad cause damage No data Check AMP BD channel output Relay

7、RL1,2,3 is working or not Yes working Yes working Yes Yes Check Prologic BD U3/pin3,9,14,17,1,2 U4/pin2,19,7,14 signal No Possible cause U3 bad/damage No No Not work Repair power supply circuit Check R20/10K (+5V up tug) or CPU/U5 damage Check Front BD CPU/U5 Pin5=4.8VDC Check Prologic BD MUTE circu

8、it Q15 electrode B0.7VDC Check Prologic BD U3,U2,U5,U1 power supply Yes No Signal No Yes Yes No No No A Check protection circuit (AMP BD) IC/U6 Pin6=0VDC Pin1=0VDC, Pin20.7VDC Check power AMP IC U1,2,3,4,5/Pin3=0VDC Check the channel unnormal operation power AMP section No Pin 2 No Pin 1 No Check po

9、wer supply +/-36V Q2/9015, Q3/9014 No Yes Check Front BD CPU U5/Pin2=4.8VDC or change CPU/UPD780023QFP Yes No Change Q2/9014 Change Q4/8550 Check PSU BD Q4 electrode B=0V Check PSU BD CBL03A PWR SW/Pin6=4.8V Not working Re-insert and fix the cable No No Yes Change the fuse 12A/250VAC Repair/Replace

10、DVD Main BD Possible Prologic BD U3 damage DVD Audio no output Check Prologic BD CBL10 5.1CH Input Check all cable is loose or bad INT Check the Fuse F1 & F2(Amp BD) Check the power Relay (PSU BD) is working or not Check PSU BD CBL02A Pin 1=5V, Pin 3=12V, Pin 5 = -12V Yes MX10 xxD Repair Chart Main

11、Unit ACB Audio output No sound Video output No picture No sound & picture output MX10 xxD REPAIR CHART 2-22-2 C No Sound & picture Check Prologic BD. Video BD Audio BD power supply. test PSU BD CBL02A +/-12VDC, +5V No OPEN Yes Yes Not Work No working Check PSU BD Fuse F3,F4,F1 Change the Fuse with s

12、ame value Check PSU BD connector JC6=20VAC Check PSU BD power Relay is working or not Check the below data: From Front BD Data U5Pin 63/SCE Pin 64/SDI Pin 65/SCLK Prologic BD U3Pin 24/PCE Pin 22/PDI Pin 23/PCLK Audio DB UA1 Pin 13/CE Pin 14/DI Pin 15/CLK Video BD UV3 Pin 6/CE Pin 7/DI Pin 8/CLK Yes

13、Check Audio BD CBL13A Pin4=+12V Pin6=-12V Pin7=+5V Check PSU BD DB2 diode bridge U6/7812 U7/7912 U4/7805 No Check PSU BD Q2/9014 Q4/9014 & RLY1 Check PSU BD CBL03 Pin2/ PWR-SW=5V Check Front BD CPU/U5/Pin48 PWR SW=5V or CPU damage cause Yes Check Power Supply A/V BD (UL) CBL21B/pin2=5V A/V SCART (CE

14、) CBL21B/pin2=5VA CB15/pin13=5VD CB15/pin16=12V B Video Output No signal No Yes If CBL21B/Pin2 is bad check PSU BD If CB15 is bad check DVD Main BD Check the following: 1. CVBS Out/CB16/pin1 2. (UL) S-Video Out, Y/C, QV3, QV2/c 3. (CE) R,G,B, Out, SCART Jack Pin 15,11,7 CVBS-Out/Pin 19 No DVD S-Vide

15、o (UL) SCART Video (CE) no output 1. Check Video BD 2. Check S-Video Connection (UL) 3. Check SCART Connection (CE) 1. CVBS Out check QV1 2. S-Video check QV2, QV3 (UL) 3. R,G,B check QN1, QN2, QN3 Yes Check the following: 1. cable CB15 CVBS Out/Pin6 2. S-Video Y/C Pin4,5 (UL) 3. R,G,B/Pin 11,10,9 (

16、CE) Yes No Check DVD BD CPU/ICS1 CVBS OUT/Pin64 C_OUT/Pin63, Y_OUT/Pin62 R_OUT/Pin57, G_OUT/Pin56 B_OUT/Pin55 No Yes Check DVD Main BD HS6 cable & connector possible is CPU/ICS1/ STi5505 damage Replace DVD Main BD Check Video BD power supply UV3 pin11,10=9V pin5=-9V Check UV3/pin14,16 V-out Check Vi

17、deo BD UV3 Control Data Pin6/CE, Pin7/DI, Pin8/CLK Check Audio BD CBL13B Pin4=12V Pin6=-12V Yes No No Check Video BD UV1/79L09 UV2/78L09 +/-9V A/V SCART BD (CE) PS1/pin19 CVBS-OUT Check QV1, QV2, QV3 & QV4 Yes Possible Audio BD CBL13A/Pin1/CE, Pin2/DI, Pin3/CLK, connection bad Possible UV3 bad cause

18、 No No Yes C-Video no output MX10 xxD REPAIR CHART 2-32-3 Pin no. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Function +12VT +12VS GND GND 5VD 3.3V 5GND GND SDA SCL IRD2 5V RESET GND EXT BCLK EXT DATA EXT DATA VALID EXT PSTART/ ERROR GND NC Voltage DC/V 11.9V 11.9V 0V 0V 5.0V 3.2V 0V 0V 4.7V 4.8

19、V 3.2V 4.7V 0V 1.56V 0.25V 0.35V 0V 0V - DVD Main Board Connector Data 1. DVD Main Board Conn. HX1 (To Mechanical Loader) Note 1 3. DVD Main Board Conn. HS6 (To A/V Board) Note 3 2. DVD Main Board Conn. JP1 (To PSU Board) Note 2 4. DVD Main Board Conn. HS5 (To Front Board) Note 4 Note: 1. When the v

20、oltages 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. 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 pro

21、blem 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 Main board, otherwise the problem is in the Front board. Pin no. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Function 12V 5VA 16/9 4/3 5VD GND RED GREEN BLUE GN

22、D GND CVBS C Y GND SPDIF GND Voltage DC/V 11.9V 5V 4V 0V 5.0V 0V 3.2V 3.2V 3.2V 0V 0V 0.73V 0.52V 0.67V 0V 1.6V 0V Pin no. 1 2 3 4 5 6 7 8 9 10 Function NC 3.3V 5VD GND GND 5VA 12V 5GND 12VS 12VT Voltage DC/V - 3.2V 5.1V 0V 0V 5.0V 11.9V 0V 11.9V 11.9V Pin no. 1 2 3 4 5 6 Function GND CTS RTS TXD RX

23、D 5VD Voltage DC/V 0V 0V 0V 3.0V 4.9V 4.9V F Check the Disc for dust or damage Check DVD Loader power supply: DVD BD HX1 Pin5=5.2V, Pin6=3.3V, Pin1=8V, Pin2=12V, Pin12=5V Check DVD BD HX1 Pin14-X.BCLK, Pin15-X.DATA, Pin16-X.DATAVALID, Pin17-X.ERROR data and circuit connection No No Yes Possible DVD

24、BD CPU* damage Replace DVD BD Possible DVD Loader damage Replace Loader & test again No Yes No Repair power supply circuit Change to other Disc Cannot read the disc or Intermittent Check the Disc is off center or not Yes E Mechanical noise during playing disc Reset the Disc into the center Check is

25、there something inside the DVD Loader or not YesOpen the tray & check it out No No Possible DVD Loader damage Replace the DVD Loader Tray cannot open D No Yes Check B600 Connector Pin1,2=+/-6VDC Possible Tray motor defective. Proceed to open tray manually (see Chapter 3) Replace the DVD Loader Check

26、 DVD BD IC60/LB1641 Pin7/Vcc=11.8VDC, Pin6/OUT=3.1VDC, Pin5/IN=3.1VDC, Pin7=0V During the tray is open or close Yes Repair Motor Driver Circuit No Check DVD BD HS5 Connector Pin4 T_D=3.1VDC Pin 5 R_D=3.1VDC Yes Check Front BD CPU U5/Pin21, 22 No Check CPU*/Pin5/SLIDER_OUT CPU*/Pin6/SLIDER_IN CPU*/Pi

27、n7/SLIDER_OPEN/CLOSE Circuit Repair the circuit connection No Possible CPU* damage Replace DVD BD MX10 xxD Repair Chart DVD Section DJB Tray cannot opern Video output No Signal (see page 10-2) No Sound Digital no output EF Cannot read Disc or Intermittent Mechanical Noise C HG No sound & picture (se

28、e page 10-2) DVD no Function No Sound Analog no output *Note: BD = Board CPU = DVD BD ICS1/STi5505 DVD BD = DVD Main Board MX10 xxD REPAIR CHART - DVD SECTION 2-42-4 J No Sound Digital no output Check A/V S-Video BD (UL) QA4/electrode E A/V SCART BD (CE) QA4/electrode E Signal output Check DVD BD CP

29、U*/Pin47 SPDIF Signal output No Yes Yes Possible Optical or coaxial damage or connection cable damage Check A/V BD S-Video / SCART QA3, QA4 Possible CPU* damage Replace DVD BD No H Check supply power 1. CPU pin48,49 VDDA=3.3V 2. ICA7/7805/5VA (D/A change power supply) 3. QA13 (pre-amp supply +12V) A

30、ll channel no output No Sound Analog no output One of the channel no output No Check channel mute circuit Yes Repair MUTE circuit No Check channel pre-amp circuit Yes Repair pre-amp circuit No Check channel D/A change circuit Yes Repair D/A decode circuit Check corresponding channel DATA signal pin4

31、4/pcm-out0=FL+FR pin24/pcm-out1=C+SUB pin21/pcm-out2=SL+SR Repair corresponding channel supply power Yes No Possible CPU* damage Replace DVD BD Check RS29/RS78 is 5V or not 1. CPU* damage 2. ICA7/7805 damage Replace DVD BD No No Yes Check D/A change CPU*/PCM_LRCLK/Pin46 /PCM_CLK/Pin45 /PCM_SCLK/Pin4

32、3 /PCM-OUT/Pin21,24,44 Check MUTE circuit ICS1/A-MUTE/Pin199 MUTE=L BY PASS=H Possible CPU* damage Replace DVD BD No Yes *Note: BD = Board CPU = DVD BD ICS1/STi5505 DVD BD = DVD Main Board G DVD no function No Check DVD BD power supply JP1 connector DATA (see page 10-3) Yes Check Front BD CPU U5/pin

33、2 Yes Yes Software resetOK No Check DVD BD 1. crystal XS1/27MHz 2. CPU*/pin118=27MHz Yes Check DVD BD 1. ICS3/74HCV04 pin14=3.3V or XS1 bad 2. ICS3 damage Replace DVD BD Yes Check CIM2,ICM4,ICM8 IN or OUT DATA Replace DVD BD Check PSU BD CBL03A connector pin7 DVD power=4.8VDC No Change DVD Loader ch

34、eck Check DVD BD HX1 Pin9/SDA=4.7V, Pin10/SCL=4.7V & Loader power supply Possible DVD Loader damage Replace DVD Loader No No Check PSU BD U8, U3, U4, U5, U6 voltages Yes Yes Check DVD BD HS5 connector pin4 TXD=3.1VDC pin5 RXD=4.9VDC HS5 DATA (see page 10-3) No Check Front BD CPU U5/pin21,22 Check CP

35、U* power supply pin1,18,34,75,86,95,102,119,130,139, 149,159,171,184,208=3.3V ICM4, ICM8 power supply ICM2/pin37,1,7,25,38,44=3.3V No Check corresponding power supply circuit or change corresponding IC Check DVD BD Flash ICM2/39VF800A Pin11/WE=3.1V Pin26/CE=2.3V No Check circuit connection or change

36、 ICM2. Replace DVD BD Yes Yes Check DVD BD ICM8/ICM4 Pin34/CKE=3.1VDC, Pin14/LDOM, Pin15/WE, Pin16/CAS, Pin17/RAS, Pin18/CS, Pin35/SDCLK, Pin36/VDOM No Check circuit connection MX10 xxD REPAIR CHART - DVD SECTION ADDITIONAL INFORMATION FOR DVD SECTION 3. DVD Interface Test nameTest pointFigureRemark

37、s XERROR/P-STARTPin 39 (ICS1)-High/Low XP-CLOCK/D-VALIDPin 38 (ICS1)3-a XB-CLOCK/BB-CLOCKPin 37 (ICS1)3-b XDATAPin 36 (ICS1)3-c 4. Audio LR - Clock Switch Check Clock FrequencyTest pointRemarks 11.2896MHz, 0.02%Pin 46 (ICS1)44.1kHz sample rate 12.288MHz, 0.02%Pin 46 (ICS1)48kHz sample rate Figure 1-

38、a Figure 1-b Figure 2-a 1. Clock Check Clock nameTest pointFrequencyFigureRemarks 27MHzPin 118 (ICS1)27MHz1-a PCM CLKPin 45 (ICS1)11.28MHz1-b 2. Memory Check Clock nameTest pointFrequencyFigureRemarks SD CLOCKPin 76 (ICS1)108MHz2-a Figure 3-a Figure 3-b Figure 3-c Figure 4 Figure 5-a Figure 5-b Figu

39、re 5-c Figure 5-d 2-52-5 5. DVD Audio Clock 5.1 CH Audio Test Signal Test nameICS1 pinTest pointConditionFigure SPDIF47after RS35PLAY5-a PCM CLK45after RS27PLAY5-b PCM-OUT-044after RS28PLAY5-c S CLOCK43after RS32PLAY5-d PCM-OUT-124after RS33PLAY5-e PCM-OUT-221after RS34PLAY5-f Figure 5-e Figure 5-f

40、Figure 6-a Figure 6-b Figure 7-a Figure 7-b Figure 7-c Figure 7-d 8. Tray Open / Close - driver LB1641 output Test nameTest pointValueRemarks SLIDER INPin 5 (IC60)4.3V +/- 2.0VTray closed SLIDER OUTPin 6 (IC60)3V +/- 1.0VTray is opening 9. DVD Reset (fig. 9) 400msec. from 0V to 3.3V, if the reset in

41、put does not go high then check the circuit ICS1 pin 29. ADDITIONAL INFORMATION FOR DVD SECTION 2-62-6 Figure 7-f Figure 7-e Figure 9 6. Control In / Out Test nameTest pointConditionFigure RXDconn. HS5-RXDFUNCTION PRESS6-a TXDconn. HS5-TXDFUNCTION PRESS6-b 7. Video Output Check Playback TDV540 Color

42、 Bar Test nameTest pointConditionFigure RED OUTconn. HS6-REDPLAY7-a GREEN OUTconn. HS6-GREENPLAY7-b BLUE OUTconn. HS6-BLUEPLAY7-c CVBS OUTconn. HS6-CVBSPLAY7-d C OUTconn. HS6-CPLAY7-e Y OUTconn. HS6-YPLAY7-f DISMANTLING INSTRUCTIONS 3-13-1 Dismantling of the DVD Module and/or Digital Board 1) Loosen

43、 10 screws A to remove the DVD Digital Board cover as shown in figure 2. Note: Use step 3 to remove the Digital Board without dismantling the complete DVD Module. 2) Loosen 6 screws B (including 2 metal mounting brackets) and 2 catches C1 as shown in figure 4 and 5. Disconnect 4 cables (see figure 6

44、) and remove the DVD Module by lifting its rear end upward and sliding it out of the Front Metal plate. Note: - Care should be taken not to entangle / damage the grounding springs along the DVD enclosure wall. - Do not loose the 2 metal mounting brackets. 3) Loosen 4 screws D (see figure 6) and all

45、connectors to remove the Digital Board. 1) Open the DVD Tray by using the Open/Close Button while the Set is ON and disconnect the mains supply after removing the Tray Cover. Note: If this is not possible, the DVD Tray has to be open manually. To manually open the DVD Tray, place the set on its righ

46、t side. Insert a mini flat screw driver into the slot and slide it upwards as shown in figure 2 until the Tray moves out of the Front Panel. Dismantling of the Front Panel Assembly 2) Return the set to its upright position and remove the Tray Cover as shown in Figure 1 and close the tray manually by

47、 pushing it back in. 3) Loosen 9 screws and remove the Top Cover by lifting the rear portion upwards before sliding it out towards the rear. - 5 screws on the rear - 2 screws each on the left & right side 4) Loosen 5 screws & lift up the top edge of Front Panel assembly to free some catches (see fig

48、ure 3) before sliding it out towards the front. - 3 screws on the bottom - 1 screw each on the left & right side Figure 1 Figure 3 Figure 4 Figure 6 Figure 2 Figure 5 3-23-2 1) Loosen 2 screws E on the Rear panel to remove the Tuner Board. 2) Loosen 2 screws F on the Rear panel to remove the Audio S

49、witch Board. 3) Loosen 3 screws G on the Rear panel to remove the Video Switch Board. Dismantling the Tuner, Audio Switch, Video Switch, Pro-Logic and AV Board (Refer figure 8) 4) Loosen 3 screws H to remove the Pro-Logic Board. - 2 screws on the Rear panel - 1 screw (including metal mounting bracket) on the inside of the set as shown in figure 5. 5) Loosen 4 screws J on the Rear panel to remove the AV Output Board. 1) Release 4 catches of the pc board supporter with a long nose plier as shown in figure 7. Dismantling the Regulator Board Figure 7 Dismantling the Power Amp