Philips-MRD-200-Service-Manual电路原理图.pdf

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1、CLASS 1LASER PRODUCTServiceServiceServiceMRD200/37/37SCopyright 2002 Philips Consumer Electronics B.V. Eindhoven, The NetherlandsAll rights reserved. No part of this publication may be reproduced, stored in a retrieval system ortransmitted, in any form or by any means, electronic, mechanical, photoc

2、opying, or otherwisewithout the prior permission of Philips.Published by KC-ET0232 Service Audio Printed in The Netherlands Subject to modificationGB3139 785 30092DVD ReceiverVersion 1.2TABLE OF CONTENTSPageLocation of PC Boards.1-2Versions Variation fr Reparaturen sind Original-Ersatzteile zu verwe

3、nden.ILe norme di sicurezza esigono che lapparecchio venga rimessonelle condizioni originali e che siano utilizzati i pezzi di ricambioidentici a quelli specificati.“After servicing and before returning set to customer perform aleakage current measurement test from all exposed metal parts toearth gr

4、ound to assure no shock hazard exist. The leakage currentmust not exceed 0.5mA.“CLASS 1LASER PRODUCT3122 110 03420GB Warning !Invisible laser radiation when open.Avoid direct exposure to beam.S Varning !Osynlig laserstrlning nr apparaten r ppnad och sprrenr urkopplad. Betrakta ej strlen.SF Varoitus

5、!Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiinankymttmlle laseristeilylle. l katso steeseen!DK Advarse !Usynlig laserstrling ved bning nr sikkerhedsafbrydere erude af funktion. Undg udsaettelse for strling.1) System Reseta) Press “SYSTEM“ button on R/C. TV show “SETUP“b) Select th

6、e menu using the “ “ and “ “ button on R/Cc) Go feature setup page to do system reset2) Region Code Change2-1System, Region code, Tuner, etc. setting procedureAfter replacement / repair of the MPEG board, the customersetting and the reegion code may lost. Changing the RegionCode will put the player

7、back in the state which it has left thefactory.Region Code1 USA2EU3AP4 Australia, NZ, Latam5 RUSSIA, INDIA6 CHINATV System1 NTSC2PAL3AUTOMenu/ Audio Subtitle (AS) Language1 English2 English3 English4 EnglishAFS001 LX2000D/LX3000D/LX3500D/ MRD200002 MX3550D/MX3600D/MX3700D/MX3800Doem derivative08.reg

8、ion code = 1 digit.tv system = 1 digit.“as/menu lang“ = 1 digit.“AFS“ = “architechture Feature Set“ = 3 digitsThis field is used to define the architecture / features sets foreach product.“oem derivative“ = 2 digitThis field is use to define the OEM set. This will affect thebackground display.Hence

9、in total, reprograming will be done by way of theremote 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) :For LX2000D/30S (NZ, Australia) :For LX2000D/33S (Korea) :For LX2000D/3

10、5S (China) : After the Region Code is changed it is necessary to resetthe system so that the new Region Code will be fullyeffective. All customer setting will be lost. On top of the maximum number of times allowed forchanging the region code is changed to 25. When the counter reeach 25, you will not

11、 be able to furtherchange the code until you reset the timer by the RegionCode timer reset procedure.3) Region code change timer resetPress below key to reset the timer :a) In DISC source, stop mode and no disc in tray.b) Press R/C “Play -159-PLAY“ to reset timer to 254) Tuner area changea) Press th

12、e “OPEN/CLOSE“ button to openthe sets doorb) 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 CHANGED“If you didnt press it in five seconds, the system will rem

13、ainoriginal status.USA FM 87.5M 108M 100KAM 530K 1700K 10KAPAC FM 87.5M 108M 50KAM 531K 1602K 9KEUROPE FM 87.5M 108M 50KAM 531K 1602K 9KLATAM FM 87.5M 108M 50KAM 530K 1710K 10KAUSTRALIA FM 87.5M 108M 50K/ NZ AM 531K 1602K 9KNote :-Please refer to the above different tuner area.AREA BAND FREQUENCY (H

14、z) STEP(Hz)5. Video Out Changea) Press “SYSTEM“ on R/C buttonb) Select the menu using the “ “ and “ “ button on R/Cc) Go picture setup page select Video out item.6. Password Changea) Press “SYSTEM“ on R/C button.b) Select the menu using the “ “ and “ “ button on R/C.c) Go feature setup page select “

15、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 versiona) Open the CD door.b) Press “123“ and “OK“ on the remote control.c) TV will show the versi

16、on on screen.8. Upgrading new softwarea) 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 VER0527.2-1CAUTION !This information is confidencial and may notbe distri

17、buted. Only a qualified serviceperson should reprogram the Region Code.2-2REPAIR INSTRUCTIONS2-2Audio OutputNo SoundDVD AudioNo OutputCAux/TVNo OutputTuner No OutputEEar Head PhoneNo SoundAudio LineNo OutputGCenter LineNo OutputSubwoofer LineNo OutputID F H JVFD DisplayNo ShowBDigital LineNo OutputK

18、BVFD DisplayNo ShowRE-Insert and fix the cableYesAnd Key FunctionAnd Key FunctionCheck Control BD CN205Cable loose or bad INTRE-Insert and fix the cableYesNoAnd Standby BD RB202Check Control BD CN205 Pin6Yes Or No (+5V)And Standby BD RB202 Pin3Check Back Power BdPower Supply CircuitNoYesCheck Main B

19、D CN201Cable loose or bad INTAnd CN904NoCheck Test CN201Pin7=+5VPin8=-26VPin9.11=AC1.2VPin10=AC0VPower Supply CircuitPin7 No +5VCheck +5VNoCheck T901 CN904Power Supply CircuitCheck Test CN201 Data FromPin4/CEPin5/CLOCKPin6/DATAAnd Fuse ResistorR925. R926. R927Mpeg BD CPU To RB102 CableNo Data Check

20、RB102 Cable loose or bad INTRE-Insert and fix the cableYesNo Check Mpeg BD IC6(CPU)And IC2 Bad Cause DamageYes YesCheck VFD Control BD Section Bad Cause DamageNote: BD=BoardAll FunctionNo WorkingAAll functionNo WorkingARE-Insert and fix the cableYesAll cable is looseor bad INTCheck Back power BDF981

21、WorkOKRB900 Pin1,3 = 5VChange IC903NoIC903 Pin3 toCheck All SystemCheck Mpeg BD sectionAll VCC=(+5V)YesAll power supply Check RepairCheck CN203Change F981BadYesPin3=(+5V)Check Main BD fuse F903Bad Cause DamageOKChange F903BadWorking or NotPanel stanby LED showNotNoBad Cause DamageCheck T901Change T9

22、01BadBad Cause DamageOkNoBetween T981 to IC982Circuit RepairCN203 Pin1 =(+ 5V)Check back power BDYesNoCheck main BDAll VCC33=(+3.3V)Repair Mpeg BD sectionAll power supply circuitCheck Mpeg BDPin49(OSC frequency 27MHz)IC6(CPU) Pin24(Reset) andRepair Mpeg BDIC1,IC7,IC9 circuitBetween IC6(CPU) to Systm

23、 power controlNoControl BD IC981 circuitYesYesMain BD = LVM0189C011MPEG BD = LFF0205C001Surround BD = LVA0192C001Tuner BD = LVT0187C001MAIN UNIT REPAIR CHART2-3Audio outputNo SoundCAll channel no oosundIC501/IC502/IC503 RE-Insert and fix the cableYesRepair chartCheck IC405,IC406NoAt DVD AC3 Dolbly D

24、igital ModeIC405 Pin13=D/L Pin1=D/RAudio Signal inputPin3=D/CNoSee (D)Repair chartNoPin2=L/CHCheck surround BD CN601Pin3=R/CHNoCheck Ic401Audio signal outputYesYesPin13 to C412 = L/ChPin3 to C416 = R/CHAudio Signal inputCheck Ic405 Ic406Between Ic405.406 Pin9.10.11To Ic408 Pin2 Circuit orCheck IC405

25、. IC406Pin16(VCC)=+7VPower SupplyPIN7(VEE)=-7vRepair IC405,IC406Power supply CircuitYesRepairIC408 CircuitChange IC405 , IC406YesNoCheck Surround BDPower Suply:Pin13=(+12V) Pin14=(-12V)Repair power Supply circuitNoCN601DVD audio No outputAux/TV/TunerNo outputSee (D)Repair chartSee (E) and (F)Check a

26、ll cable is looseor bad INTChange fuseF901 orF902BadCheck fuse F901/F902Bad Cause DamageNoOKCheck Amplifier Change D901NoPower supplyPin1=-Vss(-17.5V to -20V)Pin3=+Vcc(+17.5V to +20V)YesIC501 or IC502 or IC503 Change Amplifier IC YesAudio signal inputIC501 Pin7 from C473(L-CH)Check IC501/IC502/IC503

27、IC501 Pin11 from C478(R-CH)IC502 Pin11 from C491(C-CH)IC503 Pin7 from C483(SL-CH)IC503 Pin11 from C487(SR-CH)Audio signal outputPin31 to C471(L-CH)Check IC408Pin32 to C476(R-CH)Pin33 to C489(C-CH)Pin34 to C481(SL-CH)Pin35 to C485(SR-CH)NoPower supplyCheck IC409 IC410 IC411YesPin4=(-12V)Pin8=(+12V)R4

28、105 or R4106NoCheck IC409 IC410 IC411Bad Cause DamageYesNoCheck system power supplyNoIC901 Pin3=(-12V)IC902 Pin3=(+12V)YesCheck IC901,IC902 or R901,R902Bad Cause DamageAudio signal inputPin15 from C437(L-CH)Check volume control IC408Pin13 from C438(R-CH)Pin11 from C439(C-CH)Pin9 from C440(SL-CH)Pin8

29、 from C441(SR-CH)Switch control voltageRepairCheck IC405 IC406NoFrom C495 to subwoofer outputPin36 to C493(Subwoofer)Pin6 from C442(Subwoofer)Pin39 from RB102 Pin26(CE)Check IC408 dataYesNoChangePower supplyCheck IC408Pin30=(-7V)Pin5=(+7V)ChangeR466 or R467NoPin40 from RB102 Pin14(data)Pin41 from RB

30、102 Pin24(clk)Change IC408Ok OkCheck Mpeg BD sectionto CN102 circuitBetween IC6(CPU) to IC2,IC3(Surround mode)Ic405 Ic406 Pin9.10.11 = (0V)1: At aux/TV, tuner mode(5.1 CH mode)Ic405 Ic406 Pin9.10.11 = (+5V)1: At DVD dolby modeIC406 Pin13=D/SR Pin1=D/SLPin3=D/subwoofer(Surround mode)At aux/TV, tuner

31、modeIC405 Pin12=P/L Pin2=P/R Pin5=P/CIC406 Pin2=P/SR Pin12=P/SLPin5=P/subwooferYesYesRB601 Audio Signal outputPin4=R Pin5=L Pin6=CPin7=SR Pin10=SLCheck Surround BD 6CH modeControl voltage Pin9=(0v)NoYesBetween CN601 toIC405,IC406 circuitRepairAudio Signal inputSurround BD circuitRepairNoCheck IC401

32、power supplyChange Ic401YesPin16(VDD)=+7VPin7(VEE)=-7VAt aux/TV, tuner modeBetween IC402 to CN601RepairPin2 and Pin3 circuitAnd power supply circuitPower Supply circuitNoYesCheck IC401Pin9 and Pin10Switch control voltagePin10=(A)NoPin9=(B)(Pin10=+5V, Pin9=0V) for aux mode(Pin10=0V, Pin9=0V) for TV m

33、ode(Pin10=+5V, Pin9=+5V) for tuner modeBetween IC401 Pin9,10 toIC408 Pin3,4 Circuit orRepairIC408 Circuit(Pin10=0V, Pin9=+5V) for DVD line outREPAIR INSTRUCTIONS2-3DVD AudioNo OutputDCheck RB104 To Mpeg BD Cable loose or bad INTRE-Insert and fix the cableYesCN104Check RB104 6 ChannelsPin2=L Pin3=RAu

34、dio SignalPin5=SLPin6=SR Pin8=C Pin9=WooferNo Check Mpeg Bd D/A sectionYesNoBetween RB104 to IC405,IC406CheckcircuitOkOf IC405,IC406 section circuitSee(C)BadBetween RB104 to IC405,IC406RepaircircuitRepair chart (at DVD mode)Aux/TVNo OutputECheck Main BD Between JK401 to IC401BadOkCircuitRepairBetween JK401 to IC401CircuitOf IC401 section circuitSee(C)Repair chart (at surround mode)REPAIR INSTRUCTIONS2-4 2-4