Philips-HTS-3548-Service-Manual电路原理图.pdf

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1、1 - 1HTS3548/98/51Copyright 2007 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 prio

2、r permission of Philips.Published by KC-ET0412 Service Audio Printed in The Netherlands Subject to modificationHC!1DVD Hometheater SystemVersion 1.0TABLE OF CONTENTSPageLocation of PC Boards.1-2Versions Variation fr Reparaturen sind Original-Ersatzteile zu verwenden.Sicherheitsbauteile sind durch da

3、s Symbol ! markiert.ILe norme di sicurezza esigono che lapparecchio venga rimessonelle condizioni originali e che siano utilizzati i pezzi di ricambioidentici a quelli specificati.Componenty di sicurezza sono marcati con ! .GBAfter servicing and before returning set to customer perform a leakagecurr

4、ent measurement test from all exposed metal parts to earth groundto assure no shock hazard exist, The leakage current must notexceed 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 p

5、pnad och sprrenr urkopplad. Betrakta ej strlen.SF Varoitus !Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiinankymttmlle laseristeilylle. l katso steeseen!GB WARNINGAll ICs and many other semi-conductors aresusceptible to electrostatic discharges (ESD).Careless handling during repair

6、can reduce lifedrastically.When repairing, make sure that you areconnected with the same potential as the massof the set via a wrist wrap with resistance.Keep components and tools also at thispotential.F ATTENTIONTous les IC et beaucoup dautressemi-conducteurs sont sensibles auxdcharges statiques (E

7、SD).Leur longvit pourrait tre considrablementcourte par le fait quaucune prcaution nestprise leur manipulation.Lors de rparations, sassurer de bien tre reliau mme potentiel que la masse de lappareil etenfiler le bracelet serti dune rsistance descurit.Veiller ce que les composants ainsi que lesoutils

8、 que lon utilise soient galement cepotentiel.ESDD WARNUNGAlle ICs und viele andere Halbleiter sindempfindlich gegenber elektrostatischenEntladungen (ESD).Unsorgfltige Behandlung im Reparaturfall kandie Lebensdauer drastisch reduzieren.Veranlassen Sie, dass Sie im Reparaturfall berein Pulsarmband mit

9、 Widerstand verbundensind mit dem gleichen Potential wie die Massedes Gertes.Bauteile und Hilfsmittel auch auf dieses gleichePotential halten.DK Advarse !Usynlig laserstrling ved bning nr sikkerhedsafbrydere erude af funktion. Undg udsaettelse for strling.F“Pour votre scurit, ces documents doivent t

10、re utiliss pardes spcialistes agrs, seuls habilits rparer votreappareil en panne“.GB ESD PROTECTION EQUIPMENTComplete Kit ESD3 (small tablemat, wristband,connection box, estention cable and earth cable . 4822 310 10671Wristband tester . 4822 344 139991 - 6Pb(Lead) Free SolderWhen soldering , be sure

11、 to use the pb free solder.INDENTIFICATION:Regardless of special logo (not always indicated)one must treat all sets from 1 Jan 2005onwards, accordingnext rules:Important note: In fact also products of year 2004 mustbe treated in this way as long as you avoid mixing solder-alloys (leaded/ lead-free).

12、 So best to always use SAC305and the higher temperatures belong to this.Due to lead-free technology some rules have to berespected by the workshop during a repair: Use only lead-free solder alloy Philips SAC305 withorder code 0622 149 00106. If lead-free solder-pasteis required, please contact the m

13、anufacturer of yoursolder-equipment. In general use of solder-pastewithin workshops should be avoided because paste isnot easy to store and to handle. Use only adequate solder tools applicable for lead-free solder alloy. The solder tool must be able To reach at least a solder-temperature of 400?C, T

14、o stabilize the adjusted temperature at the solder-tip To exchange solder-tips for different applications. Adjust your solder tool so that a temperature around360?C 380?C is reached and stabilized at the solderjoint. Heating-time of the solder-joint should not exceed 4 sec. Avoid temperatures above

15、400?C otherwisewear-out of tips will rise drastically and flux-fluid willbe destroyed. To avoid wear-out of tips switch off un-used equipment, or reduce heat. Mix of lead-free solder alloy / parts with leaded solderalloy / parts is possible but PHILIPS recommendsstrongly to avoid mixed solder alloy

16、types (leaded andlead-free).If one cannot avoid or does not know whether productis lead-free, clean carefully the solder-joint from oldsolder alloy and re-solder with new solder alloy(SAC305). Use only original spare-parts listed in the Service-Manuals. Not listed standard-material (commodities)has

17、to be purchased at external companies. Special information for BGA-ICs: Always use the 12nc-recognizable solderingtemperature profile of the specific BGA (for de-soldering always use the lead-free temperature profile,in case of doubt) Lead free BGA-ICs will be delivered in so-called dry-packaging (s

18、ealed pack including a silica gel pack) toprotect the IC against moisture. After opening,dependent of MSL-level seen on indicator-label in thebag, the BGA-IC possibly still has to be baked dry.(MSL=Moisture Sensitivity Level). This will becommunicated via AYS-website.Do not re-use BGAs at all. For s

19、ets produced before 1.1.2005 (except productsof 2004), containing leaded solder-alloy andcomponents, all needed spare-parts will be availabletill the end of the service-period. For repair of suchsets nothing changes. On our website www.atyourservice.ce.Pyou find more information to: BGA-de-/solderin

20、g (+ baking instructions) Heating-profiles of BGAs and other ICs used inPhilips-setsYou will find this and more technical informationwithin the “magazine”, chapter “workshop news”.For additional questions please contact your localrepair-helpdesk.2 - 1 2 - 1REPAIR INSTRUCTION (Part One) MA IN UNIT RE

21、PAIR CHART 1/ 3AAll function No workingCheck all system all cable is looseor bad INTPanel stanby LEDshow working or NotRe-insert and fix the cableCheck back power PCBF901 bad cause damage Change F901Check CN905 2pinBK5V if rightCheck repair control PCB Standby circuitCheck +5V power supply circuitCh

22、eck RB901 1pin+5V=5VCheck repair switch power circuit ( See B)Check all Voltage 3.3V and 1.8V give circuitVCC=5VVD33=3.3VVD18=1.8VCheck IC208 Pin234 OSCfrequency 27MHzRepair main pcb betweenIC202 IC206 IC208and IC602circuitYESNONO BADNOOKYESWORKNOCHECKCORRECTYESYESBPower SupplyNo workingAll Voltage

23、No OutputCheck F901Bad Cause DamageCheck BK5V +5V Working or NotNoYESNo+35.5V Voltage No OutputCheck Repair IC901 IC902And Its conn circuit-27V Voltage No Output+12V Voltage No Output+5V Voltage No OutputCheck Q901 Q909 IC901And Its Conjoint PartCheck Q912 IC902And Its Conjoint PartCheck Q912 IC902A

24、nd Its Conjoint PartCheck Q912 IC902And Its Conjoint PartNoCAll FunctionNo SoundCheck POWER ICVoltage +35.5VYesSee Contents BCheckQ306 D304 ZD303And Its conn partsYesNoCheck Q305 CVoltage 3.3VOKNoBK5V Voltage No OutputCheck Q912 IC902And Its Conjoint PartCheckQ501 Q502 IC505And Its conn partsOKLOWCh

25、eckQ902 ZD905 IC505And Its conn partsCheck Q902 CVoltage 3.3VOKNoCheck IC505 51PIN HIGH(3.3V) OR LOW(0V)Check IC501 IC502 IC503 IC504And Its Conjoint PartA A ll F unctio n No Wo rkin g B Po wer Su pply No Wo rkin g C A ll F unctio n No So und E A udi o line IN No Ou tput G DVD A udi o No So und H MP

26、 3 In No So und I CO AX IA L In No So und L T uner No So und M No Sv ideo Output O HD MI No Ou tput P No CVBS Ou tput Q No Y Pr Pb ou tput 2 - 2 2 - 2MA IN UNIT REPAIR CHART 2/3GDVD AudioNo SoundCheck CN801 toDVD loader Cable LooseNoOKCheck Open/CloseWorking or NotCheck CN802 CN803 Check IC801And It

27、s conjoint partsNoRe-Insert and fix the cableYESDetermine Picture OutputOKCheck IC208 AndTheir Conjoint PartsNoCheck Q801 Q802 Q803OKto DVD Loader Cable looseor Bad INTor Bad INTYesYes or NoQ804 And Their Conjoint PartsICOAXIAL InNo SoundINTOKCheck JK702 Pin5INT OR NO REPAIR okCheck And Repair FB202

28、 FB203NoCheck IC201 IC208 And OKCheck IC201 Pin6 pin 23approx +5.0V Its Conjoint PartsYes or NoEAUX/TV INNo OutputCheck JK302 Check IC304 IC305 Pin7INT or Noapprox -5.6V Pin16 approx +5.6V Check ZD301ZD302Check FB307 FB308Change this JKCheck IC306And Its Conjoint partsOKNoOKCheck IC306 Pin1 Pin3 6 1

29、3Voltage Correct is 5.0VYesINTNoSee COKYes or NoFB309 Q904HCheck JK302 Check IC304 IC305 Pin7INT or Noapprox -5.6V Pin16 approx +5.6V Check ZD301ZD302Check FB307 FB308Change this JKCheck IC306And Its Conjoint partsOKNoOKCheck IC306 Pin1 Pin3 6 13Voltage Correct is 5.0VYesINTNoSee COKYes or NoFB309 Q

30、904REPAIR INSTRUCTION (Part Two) 2 - 3 2 - 3REPAIR INSTRUCTION (Part Three) MA IN UNIT REPAIR CHART 3/3LTuner No SoundOutputCheck CN301 Pin9= +9V Check CN301 Q901ZD904NoAnd Its Conjoint PartsCheck SW PowerSee BYesCheck CN1 to CN301 Cable Loose or INTCheck CN1 Pin2/Clock Pin3/Data,Pin4/CEAffirm Corre

31、ctYesNoCheck IC102 IC108And Its Conjoint PartsNoCheck IC1 AndNoIts Conjoint PartsCheck VT ValtageNoLow Freq=0.8-1.8VHi Freq=8.0-9.0VCheck IC1 OSC InputPin5-AM OSCVT No ChangePin3-FM OSCRepair FM osc SectionAnd Its Conjoint PartsNo AMNo FML6 or DT4Repair AM osc SectionAnd Its Conjoint PartsL12 or DT5

32、Check Repair CN302 IC301And Its Conjoint PartsCheck CN1 L12 CF3And Its Conjoint PartsOKCheck CN302 IC301And Its Conjoint PartsCheck CF2 AndIts Conjoint PartsL6 DT4And Its Conjoint PartsAM Function No SoundFM Function No SoundOKOKOKOKCheck IC1 X1 C39And Its Conjount PartsOKCheck Main Pcb Of Tuner Inp

33、ut CircuitMNo Svideo outputCheck JK701 Pin1 Pin3Video signalYesCheck IC208 PIN133 PIN140To JK701 Conjoint PartsOHDMI No OutputYesInsert And Pull out HDMI cableSee COKCheckQ610 Q611 Q609And Conjoint PartsNoCheck IC602 3.3V And 1.8V Check Q203 Q204And Conjoint PartsNoOKCheck C300 CheckC300And Conjoint

34、 PartsNoOKCheck IC602 PIN72:ASPDIF Check IC602 IC208And Conjoint PartsNoPIN77:ALCKpNo CVBS outputCheck JK701 Pin5Video signalYesCheck IC208 PIN134To JK701 Conjoint PartsQNo Y Pr Pb outputCheck JK702 Pin12 Pin4 Pin5 Video signalYesCheck IC208 PIN137 PIN138pin139 To JK702 Conjoint Parts3 - 1 3 - 1DISA

35、SSEMBLY INSTRUCTIONSDismantling of the Front Panel Assembly1) 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.Take a mini screw driver about 2mm diam

36、eter and make a marking 24mm from the tip as shown in f_i gure 2 . Place the set on its side, insert the mini screw driver till the marking and slide it towards the right as shown in f_i gure 1 until the Tray moves out of the Front Panel.2) Return the set to its upright position and remove the Tray

37、Cover as shown in Figure 3 and close the tray manually by pushing it back in.3) Loosen 5 screws and remove the Top Cover by lifting the rear portion upwards before sliding it out towards the rear.- 3 screws on the back- 1 screws each on the left & right side4) Loosen 5 screws & lift up the top edge

38、of Front Panel assembly to free some catches before sliding it out towards the front.- 3 screws on the bottom- 1 screw each on the left & right side24mmmm2Figure 3Figure 2Dismantling of the Main PCB2) Loosen 3 screw “ A “ on the top of main board as shown in f_i g ure 4.1) Loosen 6 screw “B” at the back panel as shown in f_i gure 5.AFigure 4Figure 5PULLFigure 1B