Philips L9H.2E Service Manual Download Page 1 | Manualshive

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www.freeservicemanuals.info

8/6/2016

Published in Heiloo Holland

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Summary of Contents for L9H.2E

Page 1: ...zz785 1oo6s tt 3 I I i Powersupply Horizontal deflection Verticaldeflection Synchronisation TunerenvideolF Diversity table45 Videoprocessing Control Frontcontrol AV Monodemodulator Soundamplifier Headphone RearlO Cinches CRTPanel Externalpowersupply Clock Radio SP LS Smartplug loudspeaker Smartcardintedace Diagram A1 Diagram42 Diagram A3 Diagram44 Diagram A5 Diagram A6 Diagram A7 Diagram A8 Diagra...

Page 2: ...softwaregivesthe possibilityto switchbetween commercial and consumer mode In the consumermodea limiteduserfunctionsareavaiable 1 3 Specificationof the terminalsockets Selection can be peformed withtheset up remote Selection Pressonremote control 0 2 4I9 5 andMENUkey then usethe left or right keyto selectCommercial or Consumermode Highlight STOREand press left or right keyto storechanges TV willgo ...

Page 3: ...ers ve1l OR If sP Ls sYsrEM SMARDPLUGLOAOER LOUDSPEAKER SOCKET E E E E E E E E E M 1 4 3 Smart plug loader SMARTPLUGLOADER U1 1 4 4 Smart card connector Clock Data in 5V Data out Ground lR data RJIl 32 PIN SMART CARO CONNECTOR o o o o o o o o o o o o o o o ott l 1 q6oo o o o o o o o o o o o o q l PIN 1 N C 2 GROUND POWEB 3 Izveps 4 GROUND ilC 5 IR DATA 6 PORFORDCM 7 TV CLOCK 8 OCM OATA 9 TV DATA 1...

Page 4: ... 1 Year Themaintenance inspection contains thefollowing actions Executethe abovementioned generalrepair instruction Cleanthe powersupplyand deflection circuitry on the chassis Cleanthepicturetubepanelandlhe neckofthepicture tube 2 3 Warnings 1 E S D A 2 All lCs and manyothersemiconductors aresusceptible to electrostatic discharges ESD Carelesshandlingduring repaircan reducelifedrastically Whenrepa...

Page 5: ...Safety instructions maintenance instruction warnings andNotes Figure 2 1 I o www freeservicemanuals info 8 6 2016 Published in Heiloo Holland ...

Page 6: ... P i ä ä33i b EE E A f 9E F ö ä isätil s älg g ääuic s ii äig äsäi ä ägg ggg i I o 3 s E 5 E a e E N f r F ä E P f E s 3 ä T h t E E rg X ö eEEEE i 3 3 4 H g E E ü ä F ü s fiF o ä ö ö o b 8 8 8 o o T E N t o q F 9 L fl vr rw tsv ffi BI ffit N 6 N tr cüoo FO e 0 0 0ooo50 www freeservicemanuals info 8 6 2016 Published in Heiloo Holland ...

Page 7: ... tt iE iE iiE Y ZE E E ZEi ZE E E E i E E E E E i E E i E ä R E Y E Ei ii eüz i Z1r i IE EE FEi Eä Eä äEiäi äEgä Eä EiE äE E zrs i äsiäääiisääggä I o i s E q 11 iEä i Fä Eä i E i ä E E ü t t i i f i i z E ilE za i iai i ä gu g i ic ää C Egg E g i rääi i s F3ä E uE e su iiic äii F ä i ii E s is s ÄsBz äFEe älEE iäg Fi1z www freeservicemanuals info 8 6 2016 Published in Heiloo Holland ...

Page 8: ...tgE e Zaz lztlit1et irä iEii E iä ä äE ä i ä Ifä ä FEEEE i F r i iE ö g i i h H 3 u ä ä äE ä2 u i EzEE rE r E E p E iä ä E Ei e i ii EZz iu 4i iu Ei EIEE e E2 E 2t 3 E4 95 g g g iiE Eä E I ii o E EE i i fr iil s e5 z z5 s F E 3i E r Z s E1 s zee ää1 E zi E EäA E äzzäi 4Ä lEii fE li E zTiE r i I ä t r E V4äi li äE www freeservicemanuals info 8 6 2016 Published in Heiloo Holland ...

Page 9: ...intsin the service printing Thesetestpointsarereferring to thefunctional blocks o A1 A2 A3 etc TestpointsfortheAM MonoDemodulator Ag ITTpanel D1 and Soundamplifier D2 C1 C2 C3 etc Testpointsforthecontrolcircuit 47 and the frontcontrol A8 Test pointsfor the Linedeflection circuit F1 F2 F3 etc Testpoints fortheframe deflection circuit A 3 l1 12 13 etc Testpoints lortheTuner Video lFcircuit A5 5 and ...

Page 10: ...e supported languages X mainversionnumber Y subversion number BB rangespecification 3 SDM To indicatethat the TV set is in the servicedefault mode 4 OP OptionsCodewhichexistsof 2 characters lt is possibleto changeeachoptioncode 5 VALUE The valueof the selectedoption ON OFFor a combination of 2 letters 6 XXX Valueof the optionsbytes OB1 OB7 7 ERR The lastfivedetectederrors The leftmostnumber indica...

Page 11: ... buttonon the DST SAM menu control Menuitems AKB VSD Tuner Whitetone Geometryand Audio can be selectedwiththecursorUp or cursorDOWN key Entryintothe selecteditems submenus is donebythe cursorLEFTor cursorRIGHTkey The selecteditemwillbe highlighted Withthe cursorLEFT RIGHT keys it is possibleto increase deceasethe valueof the selecteditem lr JI 1 l J t 1 l i t I o SAM L 9 O B B C X Y TUNER fF PL L ...

Page 12: ...containsthe followingitems ST NT SB 50 SAP NT SB 56 L A Stereonoisetreshold onlyif option SAP noisetreshold onlyif option Inputleveladjust onlyif option sB s0 52155 WIDEB Stereoadjustforwidebandexpander onlyif optionS8 50 52155 SPECT Stereoadjustfor specialexpander onlyif optionSB 50 52l55 AT Attacktimeat AVL onlyif option sB 52l55 STEREO StereoadjustMSP34xx onlyifoption SB IT NB NDIT The soundadj...

Page 13: ... S correctioncaoacitot2407 flyback capacilor 2434 lineoutputstage short circuitof tlybackdiode6434 Lineuotputtransistor 7402or drivertransistor 7400 d Error3 VerticalGuard e Error4 Soundprocessor 1C7803 llC enor MSP3415D Soundprocessor doesnotrespondto the microcontroller a Error5 Bimos 1C7250 start uperror PORbit b Bimosstart upregisteris corrupted or the llC lineto the Bimosis alwayslowor no sup...

Page 14: ...mpictures thatwillbringyou to the nextstepin the faultfinding process A questioncouldbe Doyou seesnow Clickon the correct answer YES NO An examolecan be MeasuretestDoint17and clickon the correctoscillogram you seeon the oscilloscope r ServiceModes DST errormessageS protections fau tfindingandrepair 5 7 GomPair By a combination of automaticdiagnostics and an interactive question answer procedure Co...

Page 15: ...ure 5 5 5 8 I O StarterkitComPair SearchMan software ComPair intedace excluding transformer 4822727 21629 ComPairintedace excluding transformer 4822727 21631 ComPair transf ormer continental Europe 4822727 21632 ComPairtransformer UnitedKingdom 4822727 21633 Starterkit ComPairsoftware 4822727 21634 Starterkit SearchMan software 4822727 21635 Starterkit ComPair SearchMan software 4822727 21636 Sear...

Page 16: ...FI X o 6 I O O I o c I o o l t s E e i I Ä ä L O I F o I L e 3 I H l q l s 2 I 2 I Elr q 7 I 2 Et o Y 4 g ä e 3 9 Y 2 d d a g i r o x 2 o I I O O o l l B_ tr HH l E l l ä f J o f z l o l s t o I N I P o l L i e l g ä F lY I t1 l i3 v J I E 5 ö t r ä ö s g F teä E E P U h E J 9 9 9 9 E r gi 9 ätäü it ä F o ö t 9 a ö 3 ö R X t ä e E i s k F E q 6 9 9 x r I ex v F N 5 EEcEE H e i r F a ä EääE 53 s o ...

Page 17: ... N 8 E ä E ö ö o 9 a E 2 E z 6 o l u z h N d ö a 9 9 J O q H x H H n e Eö8en s äs sä g X o E A i i E l a 1 A l n I lu vz 1 13 r l ägä I o l E l V V V L 1 2 2 2 2 2 l _l L_ r l äEl läü c ä8 läsläe l l E s l l E c R l l E s l l r e ll E g n i L l l I i u t j lnil Ieörg 1 aisEssEäplg I F g s ä l F r s El F r ä l F r s s p l Fl l__ _ lF l ri e I 2 2 2 2 AA A AE 2 t 1äät t h lä I V V V V F Figure5 9 ww...

Page 18: ...äqiää äE ice 3i I sE E ääe ggtä3 ö öi R t x C l F 6 o I i r FE E E g ö a l c c ö t ö s E E ö E u 9 E e 4 Y g r ö H E ä E ää ä äE Egä sE sb s E i i f r g H B i E EEä3 e 6 E 9 E f r o l ä 5 g g E r o i p 9 ü 6 9 F i L o b 9 P P 3 d e H 3 3 i 3 E t 8 ö ä E E E s ä ü l _ t r ä A ö i E I g E E F F 6 6 b ä ä o ö 4 3 I r ääcEau gäää FE 3ä tE ägäEl Eä r FFF ää sEF EEäEägEääääEFEE sää i Figure 5 10 www fre...

Page 19: ...ync EAA notok Verticalsection Vertical pictureis toosmallor unstable A4 S3 S4 OK Check Replace A4 tC725o 44 s2 OK Check Replace tc7460 R3463 R3465 R3466 D6460 C2464 A3 F3 F4 F5 OK Check Replace 42 TS7400 T57402 LOT5445 C2407 47 tC76O7 TS7608 Check Replace A3 Vertical defl coil L0222 1 3 5 0 Check Aa lC leplace 7250 www freeservicemanuals info 8 6 2016 Published in Heiloo Holland ...

Page 20: ... r ServiceModes DST errormeSsages protections fau tfindingandrepair Personalnofes o I I o www freeservicemanuals info 8 6 2016 Published in Heiloo Holland ...

Page 21: ... CAUTION Depending ontheposition oftheVG2potentio meter a brightcolouredlinewillappearon the middleof the screenor the screenwillturncompletely black AdjustwithVG2 potentiometer positioned at LOT5445 seeFig 8 1 untilthecoloured lineat themiddle of the screenisjust notvisible Thealignment oftheVG2hasbeencompleted now Switch OFFthesetusingthemainsswitch Thevaluesadaptedat the BRIGHTNESS andtheCONTRA...

Page 22: ...ing Optionsare usedto controlthe presence absenceof certain featuresand hardware Viathe remotecontroltheoptionscanbe setwhenin SDMvia two ways By settingeachsingleoptioncode twocharacter codes By seüingthe decimalvalueof an optionbyte Via an optionbytea clusterof optioncodescan be set There are 6 option bytesavaiable see SDM menu the first byte is numberedOB1 andthe lastbyteis numberedOB7 SetH60to...

Page 23: ...D I r lr J It AAABBC X Y TUNER WHITE TONE GEOMETRY AUDIO AKB VSD a o SAM L 9 O B B C X Y TUNER IF PL L IF PLL POS AFA 1 AFB L L 9 O B B C X Y NORMAL RED SAM L 9 O B B C X Y SOUND A_FM AT STEREO L 9 O B B C X Y VAM www freeservicemanuals info 8 6 2016 Published in Heiloo Holland ...

Page 24: ...the SCARTconnector and autoswitchingbetweenSCART1 and SCART2 Not usedin L9HAPand L9HAN mustbe AA OFF X1 AV1 Enableidisable external1 sourceinput AV1 Theconnector forAVI mayor maynotbeavailable When X1 ON AV1 willbe 1 of the user selectable sourceinputs x2 AV2 Enable disable external2 sourceinput AV2 Theconnector for AV2 mayor maynotbeavailable When X2 ON AV2willbe 1 of the user selectable sourcein...

Page 25: ...erman2CS lTTMSP341sD_lT MM Multi Mono Bilingual Mono lTTMSP341SD_MM EC BTSC non DBX TDA9851 SM SmartPort Enable disable SmartPodcommunication SmartPort circuitmustbe available whenSM ON SY System SS SingleSystem SP SingleSystemwith NTSCPlaybackTD True Dual TM TrueMulti o I I o Setting option codes EnterSDM selectwiththe MENUuP DowN keystheoptionto beset Changeits setting withthe MENULEFT RIGHT key...

Page 26: ...eto the hiqhcurrentinvolvedand becomeshigh ohmic whichreducesthe degaussing current Duringnormaloperation thedegaussing currentis signal very small becauseof the highimpedance of PTC R3504 9 2 2 Start up and take over Start up Thestart upcircuitry consisting of 3510 3530 and3529usethevoltagecomingfromthe230VAC mains to start up1C7520 viathe supplypin 1 The outputdrive wavelorm pin3 is blockedby us...

Page 27: ...agepin 1 willbe takenover by winding1 2 Pin1 of lC 7520is usedto detectanovervoltage situationon the secondary sideof thetransformer lf this voltageexceeds17V typical the outputbufferis disabled and lC 7520goesintoovervoltageprotection and a complete restart sequenceisrequired Checkinthiscase1C7520 D6537 and the secondary voltage VBATT 95V REMARK In the eventof the overvoltagesituation remaining p...

Page 28: ... of 1C7250 A Internally the lC usesthe top synclevelas a reference for AGCcontrol The AGC adjustment can be readjusted via the SAM servicealignmentmenu C2201 connected to pin53 determines thetimeconstantof the AGC The BasebandCVBSsignalis presentat pin6 of 1C7250 A normalamplitude3 2Vpp Fromherethe signalisfedvia transistor 7266tothesoundtraofiltersandthenonto the video sourceselection circuit 9 5...

Page 29: ...Circuit description newcircuits Er INPUT SELECT Y CHROMA PROCESSING cL 86532104_021 EPS 120100 I t Figure9 3 BIMOS www freeservicemanuals info 8 6 2016 Published in Heiloo Holland ...

Page 30: ...temperature independent reference voltage lt ensuresoptimalperformance of the TV processorand is usedbyalmostallfunctional blocksinsidethe processor TheY signalandthedemodulator outputsR Yand B Yarepresentat pin28 29 30oftheTV processor Theauto systemmanageridentifies PAL andSECAMcolourstandards and is controllable via the llc bus Connected on oin36 of the TV processor istheLoopFilterforthephasede...

Page 31: ...ia an optocouplerlC2 lC1 containsthe controland FET switchingfunction At the secondary side2 DCvoltages 12V and 5Vare available This2 voltagesareappliedto the SmartCard Interface panel Formoredetailsseethe description of the interface panel 9 8 SP LS Smart plug DiagramI 9 8 1 SP Smart Plug Thesmartplugis a modularjackconnectorusedfor communication withexternalset topboxesfor interactive TV Besidet...

Page 32: ...The socketfor the externalbathroomspeaker is a 3 5mm headphone socketwithswitch The bathroomspeakerwillbe connectedin serieswiththe internalmono right speaker The switchtakescarethatwhenthejack is unplugged theTV soeakeris muted 9 12 Listof abbreviations 2cs AJP AFC AQUADAG AudioOutR AudioOutUMono AV_MUTE Ext2Fun_SW AV_Mute Ext2Fun_SW AV AVL B_TXT_OSD BASS Bcl BTSC Buzzel CRTDISCHARGE crl CVBS CVB...

Page 33: ... Latin American incl Brazilian sets AudioLeftsignaloutput Luminance Transientlmprovement steepness I o t n vo INT I R rtrq MainAudioL Mono MainAudioB MON NICAM NR NTSC OSD P0Sys1 AM B MOScrystal selection onlyfor Latamsets Sys2 AMFM_ExtSel LLp Mtrap Dual Mono ScartPinS SVHS BassSw TrebleSw Exl112 stbyon protn Mutely olume POR CLK R R RAM RESET RF_AGC RGB RGB_Blanking RightOut R_TXT_OSD ROM SAM SAP...

Page 34: ...stand bymode high for nolmaloperation SelectedOutputsignalfromsource Synchronisation To Be Defined Controlsignalfor treble Teletext Microcontroller UnitedStates schematic PCB information only applicable for North Americansets Tuningvoltagefor tuner NegativeVerticaldrivepulsesignal Positive Verticaldrivepulsesignal Verticalpulsederivation Verticalflybackpulseusedto inform the microcontrollerthat tl...

Page 35: ...22 126 10223 4822 126 13589 4822 126 14 153 4822 126 14 153 4822 126 14153 4822 124 12439 4822 126 11382 4822 126 13517 4822 12611382 4822126 13517 5322 122 32331 4822 126 13337 4822126 13695 4822 12232646 5322 126 10223 482212232646 5322 126 10223 5322 12232268 4822 126 13838 4A2212422776 4822 126 14587 5322 122 31863 5322 126 10511 22OnF25V 15pF 2 63Y 6 8nF10 63V 100nF50V20ol l00pF5ol 50V 47nF 1...

Page 36: ...4 4822 117 10833 4822 116 52234 4822 116 52251 4822100 12156 4822053 11479 4822053 21475 4822051 20109 4822 116 52195 4822116 52213 4822 116 52206 4822116 83881 4822116 83883 4822 116 52263 482211711503 4822051 20561 4822117 10353 4822051 20562 4822117 10833 4822051 20471 4822117 11454 4822051 20471 4822051 20822 4822 117 11503 4822051 20332 4822 051 20332 4822 117 11454 4822117 12167 4822116 9088...

Page 37: ...W 220A5 0 33W 1k55 0 5W 1k55 0 5W 1k5 0 33W 1k55 0 5W 1c22 5 0 33W 1cl25 0 33W F 2901 4822124 81151 2902 4822 124 40248 2903 482212440248 2904 4822 12481151 2905 4822124 40248 2906 5322 122 32268 2907 532212232268 2908 4822 124 40756 2909 4822 124 41751 2910 482212481151 2920 482212440248 2930 532212232268 2941 532212232818 2942 4822121 70621 221tF5OY 10pF20 63V 10pF20 63V 22p FsoY 1OpF20 63V 47Op...

Page 38: ...5120008 0Q5 0 25W JF 2920 2930 2941 2942 4822 124 40248 1Op F 20 63V 532212232268 47OpF10 50V 532212232818 2 2nF 10 100V 482212170621 100nF5 50V 3925 3926 3927 3928 3930 3931 3934 3942 3943 3944 JV C 3946 3947 4822 116 52269 4822 116 52269 4822 11652269 2322257 41332 4822 117 10837 4822 051 20472 4822117 10833 4822 116 52175 4822 050 21003 4822 050 21003 4822 050 21003 4822 11652175 4822116 52175 ...

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