Philips-LX-600-Service-Manual电路原理图.pdf

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1、LX600/01/69Copyright 2004 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, photocopying, or otherwisewithout the prior permi

2、ssion of Philips.Published by BB-ET0412 Service Audio Printed in The Netherlands Subject to modificationGB3139 785 30631Surround ReceiverVersion 1.1TABLE OF CONTENTSPageLocation of PC Boards 50Hz (for / 01)Power Supply Rating 110-127/ 220-240V; 50/60HzSwitchable (for / 69)Power Consumption 180 WDime

3、nsions (w x h x d) 435mm x 54mm x 388mmWeight 4.16 kgSPEAKERSFront Speakers / Rear (surround) speakerSystem 2-way. closed box systemImpedance 3WSpeaker drivers 18mm cone dome tweeterFrequency response 150 Hz - 20 kHzDimensions (w x h x d) 93mm x 169mm x 65mmWeight 0.75 Kg / eachCENTER SPEAKERSystem

4、2-way. closed box systemImpedance 3WSpeaker drivers 18mm cone dome tweeterFrequency response 150 Hz - 20 kHzDimensions (w x h x d) 245mm x 93mm x 70mmWeight 1.37 KgPASSIVE SUBWOOFERFrequency response 30 Hz - 150 kHzDimensions (w x h x d) 156mm x 350mm x 360mmTUNER AREA:1-4LF Generator e.g. PM5110Rec

5、orderUse Universal Test Cassette CrO2 SBC419 4822 397 30069LEVEL METER e.g. Sennheiser UPM550 with FF-filterS/N and distortion meter e.g. Sound Technology ST1700BLRDUTor Universal Test Cassette Fe SBC420 4822 397 30071LEVEL METER e.g. Sennheiser UPM550 with FF-filterS/N and distortion meter e.g. Sou

6、nd Technology ST1700BLRDUTCD Use Audio Signal Disc (replaces test disc 3) SBC429 4822 397 30184Bandpass 250Hz-15kHz e.g. 7122 707 48001LF Voltmeter e.g. PM2534DUTS/N and distortion meter e.g. Sound Technology ST1700BFrame aerial e.g. 7122 707 89001Tuner AM (MW,LW)To avoid atmospheric interference al

7、l AM-measurements have to 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=50Bandpass 250Hz-15kHz e.g. 7122 707 48001LF Voltmeter e.g. PM2534DUTRF Generator e.g. PM5326S/N and distortion met

8、er e.g. Sound Technology ST1700BUse a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz).Ri=50Tuner FMMEASUREMENT SETUP1-5Service Tools:Universal Torx driver holder .4822 395 91019Torx bit T10 150mm .4822 395 50456Torx driver set T6-T20 .4822 395 50145To

9、rx driver T10 extended .4822 395 50423Compact Disc:SBC426/426A Test disc 5 + 5A .4822 397 30096SBC442 Audio Burn-in test disc 1kHz .4822 397 30155SBC429 Audio Signals disc .4822 397 30184Dolby Pro-logic Test Disc .4822 395 10216SERVICE AIDSHANDLING CHIP COMPONENTS1-6NL WAARSCHUWINGAlle ICs en vele a

10、ndere halfgeleiders zijngevoelig voor electrostatische ontladingen(ESD).Onzorgvuldig behandelen tijdens reparatie kande levensduur drastisch doen verminderen.Zorg ervoor dat u tijdens reparatie via eenpolsband met weerstand verbonden bent methetzelfde potentiaal als de massa van hetapparaat.Houd com

11、ponenten en hulpmiddelen ook opditzelfde potentiaal.I AVVERTIMENTOTutti IC e parecchi semi-conduttori sonosensibili alle scariche statiche (ESD).La loro longevit potrebbe essere fortementeridatta in caso di non osservazione della pigrande cauzione alla loro manipolazione.Durante le riparazioni occor

12、re quindi esserecollegato allo stesso potenziale che quello dellamassa dellapparecchio tramite un braccialettoa resistenza.Assicurarsi che i componenti e anche gli utensilicon quali si lavora siano anche a questopotenziale.GBSafety regulations require that the set be restored to its originalconditio

13、n and that parts which are identical with those specified,be used.Safety components are marked by the symbol ! .NLVeiligheidsbepalingen vereisen, dat het apparaat bij reparatie inzijn oorspronkelijke toestand wordt teruggebracht en dat onderdelen,identiek aan de gespecificeerde, worden toegepast.De

14、Veiligheidsonderdelen zijn aangeduid met het symbol ! .FLes normes de scurit exigent que lappareil soit remis ltatdorigine et que soient utiliss les pices de rechange identiques celles spcifies.Less composants de scurit sont marqus ! .DBei jeder Reparatur sind die geltenden Sicherheitsvorschriften z

15、ubeachten. Der Original zustand des Gerts darf nicht verndert werden;fr Reparaturen sind Original-Ersatzteile zu verwenden.Sicherheitsbauteile sind durch das Symbol ! markiert.ILe norme di sicurezza esigono che lapparecchio venga rimessonelle condizioni originali e che siano utilizzati i pezzi di ri

16、cambioidentici a quelli specificati.Componenty di sicurezza sono marcati con ! .GBAfter servicing and before returning set to customer perform a leakagecurrent measurement test from all exposed metal parts to earth groundto assure no shock hazard exist, The leakage current must notexceed 0.5mA.CLASS

17、 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 !Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiinankymttmlle laserist

18、eilylle. l katso steeseen!GB WARNINGAll ICs and many other semi-conductors aresusceptible to electrostatic discharges (ESD).Careless handling during repair can reduce lifedrastically.When repairing, make sure that you areconnected with the same potential as the massof the set via a wrist wrap with r

19、esistance.Keep components and tools also at thispotential.FATTENTIONTous les IC et beaucoup dautressemi-conducteurs sont sensibles auxdcharges statiques (ESD).Leur longvit pourrait tre considrablementcourte par le fait quaucune prcaution nestprise leur manipulation.Lors de rparations, sassurer de bi

20、en tre reliau mme potentiel que la masse de lappareil etenfiler le bracelet serti dune rsistance descurit.Veiller ce que les composants ainsi que lesoutils que lon utilise soient galement cepotentiel.ESDD WARNUNGAlle ICs und viele andere Halbleiter sindempfindlich gegenber elektrostatischenEntladung

21、en (ESD).Unsorgfltige Behandlung im Reparaturfall kandie Lebensdauer drastisch reduzieren.Veranlassen Sie, dass Sie im Reparaturfall berein Pulsarmband mit Widerstand verbundensind mit dem gleichen Potential wie die Massedes Gertes.Bauteile und Hilfsmittel auch auf dieses gleichePotential halten.DK

22、Advarse !Usynlig laserstrling ved bning nr sikkerhedsafbrydere erude af funktion. Undg udsaettelse for strling.F“Pour votre scurit, ces documents doivent tre utiliss pardes spcialistes agrs, seuls habilits rparer votreappareil en panne“.GBESD PROTECTION EQUIPMENTComplete Kit ESD3 (small tablemat, wr

23、istband,connection box, estention cable and earth cable . 4822 310 10671Wristband tester . 4822 344 139992-1 2-1REPAIR INSTRUCTION2-2 2-2REPAIR INSTRUCTION3-1DISASSEMBLY INSTRUCTIONS1) Loosen 9 screws and remove the Top Cover by lifting the rear portion upwards before sliding it outtowards the rear.

24、-5 screws on the back-2 screws each on the left & right side2) Loosen 7 screws & lift up the top edge of Front Panel assembly to free some catches before slidingit out towards the front.-4 screws on the bottom-1 screw “A“ on the inside as indicated in Figure 1.-1 screw each on the left & right side3

25、-1Figure 2Dismantling of the Main Board1) Loosen 4 screws “B“ on the top of main board as shown in figure2.2) Loosen 8 screws “C“ at the back panel as shown in figure 3.Figure 3Figure 5BDCEDismantling of the Power & Tuner Board1) Loosen 5 screws “ D “ on the top of power board as shown in figure 4.2) Loosen 4 screws “ E “ on the top of tuner board as shown in figure 5.AFigure 1Figure 43-2SERVICE POSITIONSService position A Service position B3-2