Panasonic CT-32HC14J User manual

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Service Manual
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MTNC040314C1
B19 Canada:B05
Color Television
lCT-32HC14J
CT-32HC14UJ
DX4M
©2004 MatsushitaElectricCorporation of America.Allrightsreserved.Unauthorized copying and distribution isaviolation of law.
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8Autodiagnosisfeature
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Thisreceiverincorporatesanewselfdiagnosisfeature.Withthisnewfeaturewill beeasierforthe
techniciantodetectthefailures.ThereisaLEDlocatedby thekeyboardon thefrontpanel,thisLED
willstartflashingwhenafailureisdetectedby thecircuitslocatedinspecificareas,dependingon
howmany timestheLEDisflashing, thiswill tell you whatcircuitshouldbechecked. Makeacount
offlashingandseethetableshownbelow.Pleaseusethisfeatureeffectivelyespecially
forintermittentproblems.
AFTERTHECOUNT
Proceed tocheckthatarea, verifywhatboardistheproblemlocated, thiswaytheareatocheckwill
bereduceduntil thefailureisfound.
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SOSoffrontLED
FLASHESPOSSIBLECIRCUITSOS
1POWER+140SOS1
2LOWB+D.C.SOS2
4HIVOLTAGEHHS HHS
5IC4511GC2M
6IC4518GC2S
8AUDIOAMP SOS4

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9EEPROMcopyjig
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ThisCTVhasafeaturethatallowstocloneorback-up mainEEPROMdataadjustmentsfroma
CTVto otherby connectingajigtotheCTVset.AjigpartnumberTXFJIG01SER, isavailable
throughMatsushita/PanasonicServices.
Preparation:
Toconnectthisjig, removethelowerbackcoverasinstructedon disassemblyforservicesection on
thisservicemanualand insertthejigintoA15 connectorlocatedon theA-Board.(Seefigure)
EEPROMcopyjigconnection
Proceduretocopy data:
1.Entertoservicemodeanddisplayservicemenu.
2.Select“AREA”DACand thenpressACTION button on remotetoenter.PressVOLright/left
toselectoneofthefollowingoptionsthenpressACTION:
¡SelectALLtocopy all main EEPROMdata
¡SelectADJtocopy onlyadjustmentdata.
¡SelectFIXtocopy onlyfixdata
3.Tocopy datafrommain EEPROMto jig, select“IN EX”DACand pressACTION button on
remote.
4.Tocopy datafromjigtomain EEPROM,select“EX IN”DACand pressACTION button on
remote.
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12 Chassis serviceadjustmentprocedures
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Allserviceadjustmentsarefactorypresetand shouldnotrequireadjustmentunlesscontrolsand/or
associatedcomponentsarereplaced.
140.0_VB+ voltagecheck
1.SettheBRIGHTand PICTUREtominimumby usingthePICTUREmenu.
2.ConnecttheDVMonTPD144(D-Boardby D2connector)and coldground
3.ConfirmthatB+voltageis144.0V±1.5V.ThisvoltagesuppliesB+ tothehorizontaloutput
and flybackcircuits.
Sourcevoltagechart
120VAClineinput.SettheBRIGHTand thePICTUREtominimumby usingthePICTUREmenu.
Usecold orhotground forthe(-) lead oftheDVMasneeded
A-BOARDVOLTAGE
STBY7V(BYIC804) A-BoardTPP97.5±0.6V
MAIN9V(BYIC875)A-BoardTPA79.0V±0.5V
MAIN5V(BYIC871)A-BoardTPA85.0V±0.3V
GC2.5V(BYIC872) A-BoardTPA92.5V±0.2
STBY3.3V(BYA1CONNECTOR)A-BoardTPA163.3V±0.2V
D-BOARDVOLTAGE
+B2(BYD2CONNECTOR)D-BoardTPD144144.0±1.5V
25V(BYD40 CONNECTOR)D-BoardTPD25027.5±2.0V
15V(BYD4CONNECTOR)D-BoardTPD15015.7±1.5V

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Highvoltagecheck
1.SelectanactiveTVchanneland confirmthathorizontalisinsync.
2.AdjustBRIGHTNESS and PICTUREusingPICTUREicon menu sovideojustdisappears.
3.ConfirmB+144 ±1.5Viswithinlimit.
4.Usingahighvoltagemeterconfirmthatthehighvoltageis33.0kV±1.0kV
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-15V(BYRL451) D-BoardTPD151 -16.0V±1.5V
SOUND+(BYD4CONNECTOR)D-BoardTPD160 16.5V±1.0V
SOUND-(BYD4) D-BoardTPD161 -16.5V±1.0V
220V(BYD2CONNECTOR)D-BoardTPD7210V±5.0V
12V(BYIC433)D-BoardTPA612V±0.5V

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14 Service mode(electronicadjustments)
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ThisreceiverhaselectronictechnologyusingtheICbusconcept.Itperformsasacontrolfunction
and it replacesmany mechanicalcontrols.Insteadofadjustingmechanicalcontrolsindividually,
many ofthecontrolfunctionsarenowperformedbyusing“on screen displaymenu”.(Theservice
adjustmentmode).
NOTE
Itissuggestedthatthetechnicianreadsallthewaythroughand understandthefollowingprocedure
forentering/exitingtheserviceadjustmentmode;thenproceedwiththeinstructionsworkingwith
thereceiver.Whenbecomingfamiliarwiththeprocedure,theflowchartforservicemodemaybe
usedasaquickguide.
Quickentry toservicemode
Whenminoradjustmentsneedtobedonetotheelectroniccontrols,themethod ofenteringthe
servicemodewithoutremovalofthecabinetbackisasfollowsusingtheremotecontrol:
1.SelectSET-UPicon and selectCABLE mode.
2.SelectTIMERicon and setSLEEPtimefor30 Min.
3.Exit menus.
4.Tunetothechannel124.
5.AdjustVOLUMEtominimum(0).
6.PressVOL (decrease)on receiver.Red“CHK”appearsinuppercorner.
NOTE
Afterreceiverissetintoservicemode,setTIMERbacktoNO.
Totogglebetweenagingand servicemodes:
Whilethe“CHK”isdisplayedon thelefttop corneroftheCRT,pressing“ACTION”and
“VOL”UPon theTVsimultaneouslywilltogglebetweenthemodes.Red“CHK”for
serviceand yellow“CHK”foraging.
7.PressPOWERon theremotecontroltodisplaytheserviceadjustmentmodesmenu, select
adjustmentbypressingthevolumeright/leftbuttonsand channelup/downbuttonson the
remoteand ACTION toentertheadjustment.

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NOTE
Someadjustmentsareavailableonlyinsomemodes(480i,480p,1080i);itisneededtoapply
theformat.A1080i,480p, 480ipatterncanbeobtainedfromPanasonic’sTU-DST51 set-top
box DTVdecoder.
Exitingtheservicemode:
ThisTVgoesoutfromservicemodewhenit isunpluggedorturnedOFF.Toexit theservicemode,
turntheTVOFF orunplugtheTVfromA.C.
Othermethod
PressACTION and POWERon thereceiversimultaneouslyforatleast2seconds.
Thereceivermomentarilyshutsoff;thencomesbackon tunedtochannel3withapresetlevelof
sound.
Any programmedchannels,channelscaption dataand someothersuserdefinedsettingswill be
erasedwhenexitedby pressingACTION and POWERon receiver.
IMPORTANTNOTE
AlwayscheckthattheTVexitstheservicemode.
Toconfirmcolors
Wheninservicemode(red“CHK”isdisplayed)pressRECALLon theremotecontroltoenterthe
purityfieldcheckmode
Enteringservicemode(open-backmethod)
Whilethereceiverisconnectedand operatinginnormalmode,momentarilyshorttestpoint

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FA1(A15 pin2)to coldground (A-Board).
Thereceiverenterstheagingmode.
Yellowletters“CHK”appearintheupperleftcornerofthescreen.
(Thevolumeright/leftand channelup/downwill adjustrapidly).
14.1Serviceadjustmentdefault valuesforserviceitems
14.2Instructionalflowchartforservicemode
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14.1Service adjustmentdefaultvaluesfor
serviceitems
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REGISTER DESCRIPTIONFORMAT
NTSC 480p (16:9) 1080i(16:9) 1080i(4:3)
MTSININPUTLEVEL 1A
SEPALLOWLEVELSEPARATION6
SEPAHHIGHLEVELSEPARATION20
CLOCKCLOCK128
COLORCOLOR2F17
TINTTINT7681
BRIGHSUB-BRIGHTNESS3B 42
CONTSUB-CONTRAST2365
B-Y_GMAGENTATINTADJ2E3E
CUTGGREENCUT-OFF0165
CUTRREDCUT-OFF0185
CUTBBLUECUT-OFF01A6
BRTBGRIGHT
RDRREDDRIVEA0
BDRBLUEDRIVEA0
HLINHORIZONTALLINEARITY797F
HPOSHORIZONTALPOSITIONING017A 0182
HWIDHORIZONTALWIDTH542F
PCC PINCUSHIONCORRECTION502A313E
PCCHG PINCUSHIONHIGH60A97
PCCLGPINCUSHIONLOW2759
PCCHS PINCUSHIONHIGH4333
PCCLSPINCUSHIONLOW3333
TOPGTOP CORNERPINCUSHION5B 554C5B
BTMGBOTTOM CORNERPINCUSHION4532494A
TOPSLTOP CORNERPINCUSHION SLICELEVEL 2867
BTMSLBOTTOM CORNERPINCUSHIONSLICELEVEL 2857
TRAPTRAPEZOID837E7F7D
PARAPARALLELOGRAM3448
SIDEE-WPINCUSHION ADJUSTMENT4678
HTRAP HORIZONTALTRAPEZOID1A1A1A14
VRASVERTICALPOSITION8C717B 79
VEAMPVERTICALSIZEA8E2999A
V-CVERTICALLINEARITY21262524
V-SVERTICALSCORRECTION 30251733
HDAFSHORIZONTALDAFPHASE5901C5A0
VDAFGVERTICALDAFGAINA063600
VMM_G---------------- F0F0
VMM_P---------------- F3F3
HHS ---------------- CB
EW_SW---------------- 000
VTOP---------------- 9C7E799B

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NOTE:
Theabovetableshowsthedefaultvaluesfortheserviceitems,thisvaluescanchangedependingon
theservicedTV.
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SOSSW---------------- 11