Philips-MRD-200-Service-Manual(1) 电路图 维修手册.pdf

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1、CLASS 1 LASER PRODUCT Service ServiceService ServiceService MRD200/37/37S Copyright 2002 Philips Consumer Electronics B.V. Eindhoven, The Netherlands All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electron

2、ic, mechanical, photocopying, or otherwise without the prior permission of Philips. Published by KC-ET0232 Service Audio Printed in The NetherlandsSubject to modification GB 3139 785 30092 DVD Receiver Version 1.2 TABLE OF CONTENTS Page Location of PC Boards.1-2 Versions Variation fr Reparaturen sin

3、d Original-Ersatzteile zu verwenden. I Le norme di sicurezza esigono che lapparecchio venga rimesso nelle condizioni originali e che siano utilizzati i pezzi di ricambio identici a quelli specificati. After servicing and before returning set to customer perform a leakage current measurement test fro

4、m 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 03420 GB Warning ! Invisible laser radiation when open. Avoid direct exposure to beam. SVarning ! Osynlig laserstrlning nr apparaten r ppnad och sprren

5、 r urkopplad. Betrakta ej strlen. SFVaroitus ! Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina nkymttmlle laseristeilylle. l katso steeseen! DK Advarse ! Usynlig laserstrling ved bning nr sikkerhedsafbrydere er ude af funktion. Undg udsaettelse for strling. 1) System Reset a) Press

6、 SYSTEM button on R/C. TV show SETUP b) Select the menu using the and button on R/C c) Go feature setup page to do system reset 2) Region Code Change 2-1 System, Region code, Tuner, etc. setting procedure After replacement / repair of the MPEG board, the customer setting and the reegion code may los

7、t. Changing the Region Code will put the player back in the state which it has left the factory. Region Code 1USA 2EU 3AP 4Australia, NZ, Latam 5RUSSIA, INDIA 6CHINA TV System 1NTSC 2PAL 3AUTO Menu/ Audio Subtitle (AS) Language 1English 2English 3English 4English AFS 001LX2000D/LX3000D/LX3500D/MRD20

8、0 002MX3550D/MX3600D/MX3700D/MX3800D oem derivative 08 . region code = 1 digit . tv system = 1 digit . as/menu lang = 1 digit . AFS = architechture Feature Set = 3 digits This field is used to define the architecture / features sets for each product. . oem derivative = 2 digit This field is use to d

9、efine the OEM set. This will affect the background display. Hence in total, reprograming will be done by way of the remote control. It should run as below :- a) Put the player in stop mode. No disc loaded. b) Press the following key on remote control: For MRD200/37/37S (USA) : For LX2000D/21H (AP) :

10、 For LX2000D/30S (NZ, Australia) : For LX2000D/33S (Korea) : For LX2000D/35S (China) : After the Region Code is changed it is necessary to reset the system so that the new Region Code will be fully effective. All customer setting will be lost. On top of the maximum number of times allowed for changi

11、ng the region code is changed to 25. When the counter reeach 25, you will not be able to further change the code until you reset the timer by the Region Code timer reset procedure. 3) Region code change timer reset Press below key to reset the timer : a) In DISC source, stop mode and no disc in tray

12、. b) Press R/C Play -159-PLAY to reset timer to 25 4) Tuner area change a) Press the OPEN/CLOSE button to openthe sets door b) Press 1 5 9 button by using R/C. c) TV Show TUNER AREA ADJUST d) Select the tuner area you want by using the and button on R/C, then press OK to confirm. TV show TUNER AREA

13、CHANGED If you didnt press it in five seconds, the system will remain original status. USAFM 87.5M 108M 100K AM 530K 1700K 10K APACFM 87.5M 108M 50K AM 531K 1602K 9K EUROPEFM 87.5M 108M 50K AM 531K 1602K 9K LATAMFM 87.5M 108M 50K AM 530K 1710K 10K AUSTRALIAFM 87.5M 108M 50K / NZAM 531K 1602K 9K Note

14、 :- Please refer to the above different tuner area. AREA BAND FREQUENCY (Hz) STEP(Hz) 5. Video Out Change a) Press SYSTEM on R/C button b) Select the menu using the and button on R/C c) Go picture setup page select Video out item. 6. Password Change a) Press SYSTEM on R/C button. b) Select the menu

15、using the and button on R/C. c) Go feature setup page select PASSWORD. TV show ENTER CODE. Press 4 times of STOP button on R/C. d) Select PARENTAL 8 ADULT on TV. e) Enter PASSWORD to 1234. 1234 is a default password supplied. 7. Checking on the Software version a) Open the CD door. b) Press 123 and

16、OK on the remote control. c) TV will show the version on screen. 8. Upgrading new software a) Open the CD-door, then insert the CD-R program disc. b) Close the CD-door. c) TV will show:- . disc loading . bank30.rom . writing about 6 seconds. . Done The latest upgraded is in version VER0527. 2-1 CAUT

17、ION ! This information is confidencial and may not be distributed. Only a qualified service person should reprogram the Region Code. 2-2 REPAIR INSTRUCTIONS 2-2 Audio Output No Sound DVD Audio No Output C Aux/TV No Output Tuner No Output E Ear Head Phone No Sound Audio Line No Output G Center Line N

18、o Output Subwoofer Line No Output IDFHJ VFD Display No Show B Digital Line No Output K B VFD Display No Show RE-Insert and fix the cable Yes And Key Function And Key Function Check Control BD CN205 Cable loose or bad INT RE-Insert and fix the cable Yes No And Standby BD RB202 Check Control BD CN205

19、Pin6 Yes Or No (+5V) And Standby BD RB202 Pin3 Check Back Power Bd Power Supply Circuit No Yes Check Main BD CN201 Cable loose or bad INT And CN904 No Check Test CN201 Pin7=+5V Pin8=-26V Pin9.11=AC1.2V Pin10=AC0V Power Supply Circuit Pin7 No +5V Check +5V No Check T901 CN904 Power Supply Circuit Che

20、ck Test CN201 Data From Pin4/CE Pin5/CLOCK Pin6/DATA And Fuse Resistor R925. R926. R927 Mpeg BD CPU To RB102 Cable No Data Check RB102 Cable loose or bad INT RE-Insert and fix the cable Yes No Check Mpeg BD IC6(CPU) And IC2 Bad Cause Damage YesYes Check VFD Control BD Section Bad Cause Damage Note:

21、BD=Board All Function No Working A All function No Working A RE-Insert and fix the cable Yes All cable is loose or bad INT Check Back power BD F981 Work OK RB900 Pin1,3 = 5V Change IC903 No IC903 Pin3 to Check All System Check Mpeg BD section All VCC=(+5V) Yes All power supply Check Repair Check CN2

22、03 Change F981 Bad Yes Pin3=(+5V) Check Main BD fuse F903 Bad Cause Damage OK Change F903 Bad Working or Not Panel stanby LED show Not No Bad Cause Damage Check T901 Change T901 Bad Bad Cause Damage Ok No Between T981 to IC982 Circuit Repair CN203 Pin1 =(+ 5V) Check back power BD Yes No Check main B

23、D All VCC33=(+3.3V) Repair Mpeg BD section All power supply circuit Check Mpeg BD Pin49(OSC frequency 27MHz) IC6(CPU) Pin24(Reset) and Repair Mpeg BD IC1,IC7,IC9 circuit Between IC6(CPU) to Systm power control No Control BD IC981 circuit Yes Yes Main BD = LVM0189C011 MPEG BD = LFF0205C001 Surround B

24、D = LVA0192C001 Tuner BD = LVT0187C001 MAIN UNIT REPAIR CHART 2-3 Audio output No Sound C All channel no oosund IC501/IC502/IC503 RE-Insert and fix the cable Yes Repair chart Audio output No Sound C All channel no oosund IC501/IC502/IC503 RE-Insert and fix the cable Yes Repair chart Check IC405,IC40

25、6Check IC405,IC406 NoNo At DVD AC3 Dolbly Digital ModeAt DVD AC3 Dolbly Digital Mode IC405 Pin13=D/LIC405 Pin13=D/LPin1=D/R Pin1=D/R Audio Signal inputAudio Signal input Pin3=D/CPin3=D/C No See (D) Repair chart No No See (D) Repair chart No Pin2=L/CHPin2=L/CH Check surround BD CN601Check surround BD

26、 CN601 Pin3=R/CHPin3=R/CH No Check Ic401 No Check Ic401 Audio signal outputAudio signal output Yes Yes Yes Yes Pin13 to C412 = L/ChPin13 to C412 = L/Ch Pin3 to C416 = R/CHPin3 to C416 = R/CH Audio Signal inputAudio Signal input Check Ic405 Ic406Check Ic405 Ic406 Between Ic405.406 Pin9.10.11Between I

27、c405.406 Pin9.10.11 To Ic408 Pin2 Circuit or Check IC405. IC406 Pin16(VCC)=+7V Power Supply PIN7(VEE)=-7v Repair IC405,IC406 Power supply Circuit Yes Repair IC408 Circuit Change IC405 , IC406 To Ic408 Pin2 Circuit or Check IC405. IC406 Pin16(VCC)=+7V Power Supply PIN7(VEE)=-7v Repair IC405,IC406 Pow

28、er supply Circuit Yes Repair IC408 Circuit Change IC405 , IC406 YesYes NoNo Check Surround BD Power Suply: Pin13=(+12V) Pin14=(-12V) Repair power Supply circuit Check Surround BD Power Suply: Pin13=(+12V) Pin14=(-12V) Repair power Supply circuit No CN601 DVD audio No output Aux/TV/Tuner No output Se

29、e (D) Repair chart See (E) and (F) Check all cable is loose or bad INT Change fuse F901 orF902 Bad Check fuse F901/F902 Bad Cause Damage No OK Check Amplifier Change D901 No Power supply Pin1=-Vss(-17.5V to -20V) No CN601 DVD audio No output Aux/TV/Tuner No output See (D) Repair chart See (E) and (F

30、) Check all cable is loose or bad INT Change fuse F901 orF902 Bad Check fuse F901/F902 Bad Cause Damage No OK Check Amplifier Change D901 No Power supply Pin1=-Vss(-17.5V to -20V) Pin3=+Vcc(+17.5V to +20V)Pin3=+Vcc(+17.5V to +20V) Yes IC501 or IC502 or IC503 Change Amplifier IC Yes Audio signal inpu

31、t Yes IC501 or IC502 or IC503 Change Amplifier IC Yes Audio signal input IC501 Pin7 from C473(L-CH)IC501 Pin7 from C473(L-CH) Check IC501/IC502/IC503Check IC501/IC502/IC503 IC501 Pin11 from C478(R-CH)IC501 Pin11 from C478(R-CH) IC502 Pin11 from C491(C-CH)IC502 Pin11 from C491(C-CH) IC503 Pin7 from C

32、483(SL-CH)IC503 Pin7 from C483(SL-CH) IC503 Pin11 from C487(SR-CH)IC503 Pin11 from C487(SR-CH) Audio signal outputAudio signal output Pin31 to C471(L-CH)Pin31 to C471(L-CH) Check IC408Check IC408 Pin32 to C476(R-CH)Pin32 to C476(R-CH) Pin33 to C489(C-CH)Pin33 to C489(C-CH) Pin34 to C481(SL-CH)Pin34

33、to C481(SL-CH) Pin35 to C485(SR-CH)Pin35 to C485(SR-CH) No Power supply Check IC409 IC410 IC411 Yes No Power supply Check IC409 IC410 IC411 Yes Pin4=(-12V)Pin4=(-12V) Pin8=(+12V)Pin8=(+12V) R4105 or R4106 No Check IC409 IC410 IC411 Bad Cause Damage Yes No Check system power supply No IC901 Pin3=(-12

34、V) IC902 Pin3=(+12V) Yes Check IC901,IC902 or R901,R902 R4105 or R4106 No Check IC409 IC410 IC411 Bad Cause Damage Yes No Check system power supply No IC901 Pin3=(-12V) IC902 Pin3=(+12V) Yes Check IC901,IC902 or R901,R902 Bad Cause Damage Audio signal input Bad Cause Damage Audio signal input Pin15

35、from C437(L-CH)Pin15 from C437(L-CH) Check volume control IC408Check volume control IC408 Pin13 from C438(R-CH)Pin13 from C438(R-CH) Pin11 from C439(C-CH)Pin11 from C439(C-CH) Pin9 from C440(SL-CH)Pin9 from C440(SL-CH) Pin8 from C441(SR-CH)Pin8 from C441(SR-CH) Switch control voltageSwitch control v

36、oltage RepairRepair Check IC405 IC406 No Check IC405 IC406 No From C495 to subwoofer outputFrom C495 to subwoofer output Pin36 to C493(Subwoofer)Pin36 to C493(Subwoofer) Pin6 from C442(Subwoofer)Pin6 from C442(Subwoofer) Pin39 from RB102 Pin26(CE) Check IC408 data Yes No Change Power supply Check IC

37、408 Pin39 from RB102 Pin26(CE) Check IC408 data Yes No Change Power supply Check IC408 Pin30=(-7V)Pin30=(-7V) Pin5=(+7V)Pin5=(+7V) Change R466 or R467 No Pin40 from RB102 Pin14(data) Change R466 or R467 No Pin40 from RB102 Pin14(data) Pin41 from RB102 Pin24(clk) Change IC408 OkOk Check Mpeg BD secti

38、on to CN102 circuit Between IC6(CPU) to IC2,IC3 Pin41 from RB102 Pin24(clk) Change IC408 OkOk Check Mpeg BD section to CN102 circuit Between IC6(CPU) to IC2,IC3 (Surround mode)(Surround mode) Ic405 Ic406 Pin9.10.11 = (0V)Ic405 Ic406 Pin9.10.11 = (0V) 1: At aux/TV, tuner mode1: At aux/TV, tuner mode

39、(5.1 CH mode)(5.1 CH mode) Ic405 Ic406 Pin9.10.11 = (+5V)Ic405 Ic406 Pin9.10.11 = (+5V) 1: At DVD dolby mode1: At DVD dolby mode IC406 Pin13=D/SRIC406 Pin13=D/SRPin1=D/SLPin1=D/SL Pin3=D/subwooferPin3=D/subwoofer (Surround mode) At aux/TV, tuner mode (Surround mode) At aux/TV, tuner mode IC405 Pin12

40、=P/LIC405 Pin12=P/LPin2=P/RPin2=P/RPin5=P/CPin5=P/C IC406 Pin2=P/SRIC406 Pin2=P/SR Pin12=P/SLPin12=P/SL Pin5=P/subwooferPin5=P/subwoofer YesYes YesYes RB601 Audio Signal outputRB601 Audio Signal output Pin4=RPin4=RPin5=LPin5=L Pin6=CPin6=C Pin7=SRPin7=SRPin10=SLPin10=SL Check Surround BD6CH modeChec

41、k Surround BD6CH mode Control voltage Pin9=(0v)Control voltage Pin9=(0v) No Yes Between CN601 to IC405,IC406 circuit Repair No Yes Between CN601 to IC405,IC406 circuit Repair Audio Signal inputAudio Signal input Surround BD circuit Repair No Check IC401 power supply Change Ic401 Yes Surround BD circ

42、uit Repair No Check IC401 power supply Change Ic401 Yes Pin16(VDD)=+7VPin16(VDD)=+7V Pin7(VEE)=-7VPin7(VEE)=-7V At aux/TV, tuner mode Between IC402 to CN601 Repair Pin2 and Pin3 circuit And power supply circuit Power Supply circuit No Yes Check IC401Pin9 and Pin10 At aux/TV, tuner mode Between IC402

43、 to CN601 Repair Pin2 and Pin3 circuit And power supply circuit Power Supply circuit No Yes Check IC401Pin9 and Pin10 Switch control voltageSwitch control voltage Pin10=(A)Pin10=(A) NoNo Pin9=(B)Pin9=(B) (Pin10=+5V, Pin9=0V) for aux mode(Pin10=+5V, Pin9=0V) for aux mode (Pin10=0V, Pin9=0V) for TV mo

44、de(Pin10=0V, Pin9=0V) for TV mode (Pin10=+5V, Pin9=+5V) for tuner mode(Pin10=+5V, Pin9=+5V) for tuner mode Between IC401 Pin9,10 to IC408 Pin3,4 Circuit or Repair IC408 Circuit Between IC401 Pin9,10 to IC408 Pin3,4 Circuit or Repair IC408 Circuit (Pin10=0V, Pin9=+5V) for DVD line out(Pin10=0V, Pin9=

45、+5V) for DVD line out REPAIR INSTRUCTIONS 2-3 DVD AudioDVD Audio No OutputNo Output D Check RB104 To Mpeg BD Cable loose or bad INT RE-Insert and fix the cable Yes CN104 Check RB104 6 Channels Pin2=LPin3=R Audio Signal Pin5=SL Pin6=SRPin8=CPin9=Woofer NoCheck Mpeg Bd D/A section Yes No Between RB104

46、 to IC405,IC406 Check circuit Ok Of IC405,IC406 section circuit See(C) Bad Between RB104 to IC405,IC406 Repair circuit Repair chart (at DVD mode) Aux/TV No Output E Check Main BD Between JK401 to IC401 Bad Ok Circuit Repair Between JK401 to IC401 Circuit Of IC401 section circuit See(C) Repair chart

47、(at surround mode) D Check RB104 To Mpeg BD Cable loose or bad INT RE-Insert and fix the cable Yes CN104 Check RB104 6 Channels Pin2=LPin3=R Audio Signal Pin5=SL Pin6=SRPin8=CPin9=Woofer NoCheck Mpeg Bd D/A section Yes No Between RB104 to IC405,IC406 Check circuit Ok Of IC405,IC406 section circuit S

48、ee(C) Bad Between RB104 to IC405,IC406 Repair circuit Repair chart (at DVD mode) Aux/TV No Output E Check Main BD Between JK401 to IC401 Bad Ok Circuit Repair Between JK401 to IC401 Circuit Of IC401 section circuit See(C) Repair chart (at surround mode) REPAIR INSTRUCTIONS 2-42-4 F Tuner No Output C

49、heck to tuner Yes Yes F Tuner No Output Check to tuner Yes Yes Power supplyPower supply Check tuner VT From Main BD Check tuner VT From Main BD From C161From C161 No Yes Change Check Check RB101 Pin12=5V No Pin11=12V Check Q910/Q911/Q912 Check IC101 audio output to IC101 Pin1 circuit No Yes Change Check Check RB101 Pin12=5V No Pin11=12V Check Q910/Q911/Q912 Check IC101 audio output to IC101 Pin1 circuit IC101 Pin16 to RB101