Panasonic TX-29PS62Z User manual

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Service Manual
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OrderNo.MTV0308268C3
Colour Television
lTX-29PS62Z
GP3Chassis
Specification
PowerSourceACAuto110-240 V, 50/60 Hz
PowerConsumption129 W
Standby condition :2W
AerialTerminalImpedance :75 ,Coaxial type
TuningSystem FrequencySynthesizer
AutoSearchTuning
Pos:100 Positions
ReceivingSystem17Systems
Receiving ChannelsRegularTV
VHF BAND 2-12(PAL/SECAM B,K1)
0-12(PALBAUST.)
1-9(PALBN.Z.)
1-12(PAL/SECAM D)
1-12(NTSCMJapan)
2-13(NTSCMU.S.A)
UHF BAND 21-69(PALG,H,I/SECAM G,K,K1)
28-69(PALBAUST.)
13-57(PALD,K)
13-62(NTSCMJapan)
14-69(NTSCMU.S.A.)
CATVS1-S20(OSCAR)
1-125 (U.S.A.CATV)
C13-C49 (JAPAN)
S21-S41(HYPER)
Z1-Z37(CHINA)
Intermediate Frequency38.0MHz
Video31.5MHz(D,K)/32.5MHz(B,G)
32.0MHz(I)/32.5MHz(M)
Sound33.57MHz(PAL)/
Colour33.6MHz(SECAM)
34.42MHz(NTSC)/
33.75MHz(SECAM)
Receiving StereoSound SystemAVSTEREO
Video/Audio/TerminalsINS-VideoY:1.0Vp-p 75
AV1, 2, 3, 4DVD INS-VideoC:0.3Vp-p 75
Y/PB/PR(PhoneType)Y:1.0Vp-p75 PB,
PR:0.7Vp-p 75 Video1.0Vp-p
75 AudioApprox.400mV47K
Video1.0Vp-p 75
Monitor OutAudioApprox.400mV47K
High Voltage31.0±1.0Vat zero
beamcurrent
PictureTubeA68QCP83XA Type29 (68cm)
Measureddiagonally,
104°deflection
AudioOutput16Wspeaker
Dimensions(WxDxH)820 mm x500mmx566 mm
Weight(Mass)43.5kg(Net)
Note:
Specificationsaresubject tochangewithoutnotice.Mass and dimensionsshownareapproximate.

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4MarketModeFunction
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Outline:
MPUcontrolsthefunctionsswitchingforeachICsthroughIICbusinthischassis.Thefollowing
settingand adjustmentcanbeadjustedby remotecontrolinMarketMode.
1.Selection ofMarketMode
AdjusttheVOLUME“zero”and setOFF TIMERButton to30 min. Then,simultaneously
presstheRECALLButton on theremotecontroland theVOLUMEDOWNbutton -theTV
set.
2.Selection ofCHK Mode
CursormoveseachCHKModeby pressing“1”or“2”of10 keybutton on theremotecontrol.
3.PressSelf-CheckButton
Pressthevol.downbutton on frontpaneltogetherpresstheoff timerbutton on remote.
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5.1BVOLTAGE
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Item/PreparationAdjustmentProcedure
1.OperatetheTVset.
2.Setcontrols:(MARKETMODECHK 2)
Bright............. Minimum
Contrast......... Minimum
Volume............. Minimum
1.Confirmthat theindicatedtestpointsfor thespecifiedvoltage:
TPA10:141 ±1.50V
TPA8:8±1.0V
TPA9:5±1.0V
TPA21:215 ±15V
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5.2RF AGC
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Item/PreparationAdjustmentProcedure
1.Receiveacolourbarpattern.
2.Settheinputlevelto69(+1.2) db.
(75 opened)
3.SetRFAGCinCHK2.
1.SetRFAGCControlsuchastoprocedureasnowypicture.
2.SetRFAGCControlat thepointjustbeforethevoltageat AGC:TPA15beginstodrop.
3.Increasetheinputlevelby2dbandconfirmthatthevoltagechanges.
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5.3HIGH VOLTAGE
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Item/PreparationAdjustmentProcedure
1.OperatetheTVset.
2.Receivethecrosshatchpattern.
3.Setto0Beam
(ScreenControl:min.CONTRAST:min)
1.Connect aDCvoltagemetertoD850 cathodeandconfirmthevoltageis141.0±2.0V.
2.Connect ahighvoltagemeter(ElectrostaticType)toananodeofthepicturetube.
3.Confirmthat thehighvoltageiswithintherangeof31.0±1.0V.
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5.4SUBTINT
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Item/PreparationAdjustmentProcedure
1.Receivea3.58 MHzNTSCrainbowpattern
2.Connect oscilloscopetoA21pin6.
3.Setcontrols:
BRT................CENTER
COLOUR........CENTER
CONTRAST....MAX
NTSCTINT.....CENTER
AI....................OFF
1.AdjustSubNTSCTintsothat thepeakoflevel ofwaveformissimilartoFig.3
2.ReceivetheRainbowpattern (3.58MHzNTSC)on bothofMainandSubpictures.
3.AdjustSubNTSCTint2sothatthepeakoflevelof1.3±0.5V
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5.5SUBCONTRAST
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Item/PreparationAdjustmentProcedure
1.Receiveacolourbarpattern.
2.Connect anoscilloscopetoTPA37or TPL2(GOUT).
3.Connect ashortjumpertoFBTpin3orTPA34andTPA5..
4.Setcontrols:
Picturemenu........ Dynamic Normal
AI............................. off
1.AdjustBrightColour:
Y=1.0±0.4Vp-p
2.AdjustSubContrastColour:
b=2.7±0.1Vp-p
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5.6PALCOLOUR OUTPUT
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Item/PreparationAdjustmentProcedure
1.ReceivePALcolour barpattern.
2.Connect anoscilloscopeprobetoTPL2(GOUT).
3.Connect ashortjumpertoFBTpin3or TPA34andTPA5.
4.Setcontrol:
Picturemenu.....................DYNAMIC NORMAL
AI......................................off
1.AdjustBrightControl.
a=2.3±0.5Vp-p
2.AdjustSubColour control.
3.Connect theoscilloscopeprobetoTPA40.
4.Connect thewaveform.
b=2.4±0.5Vp-p
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5.7NTSCCOLOUR OUTPUT
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Item/PreparationAdjustmentProcedure
1.Apply3.58MHzNTSCRainbowpattern.
2.Connect anoscilloscopetoTPA36or TPL1(ROUT).
3.CHK2andpressdigitkey“5”(AKBOFF).
4.Connect ashortjumpertoFBTpin3or TPA34andTPA5.
5.Setcontrol:
Picturemenu.......................DYNAMICCONTROL
Channel Colour Set...........STD
1.AdjustBrightControl.
a=2.3±0.2Vp-p
2.Connect thewaveform.
b=1.3±0.5Vp-p
BeforeColour Purity,Convergence andWhiteBalance adjustmentsareattempted,V.Center,V.Height,H.Width,H. CenterandFocusadjustmentsmustbe
completed.
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5.8COLOUR PURITY
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1.SetBrightand Contrastcontrolstotheirmaximumpositions.
2.OperatetheTVsetover60 minutes.
3.Full degaussthepicturetubeby usinganexternaldegaussingcoil.ByrotatingR-Bstatic
convergencemagnet.
4.Applyacrosshatchpatternsignaland adjustroughlythestaticconvergencemagnets.
5.Applyagreenpatternsignal.
6.LoosenaclampscrewfortheDeflection Yokeand movetheDeflection Yokeasclosetothe
puritymagnetaspossible.
7.Adjustthepuritymagnetsothataverticalgreenfieldisobtainedatthecenterofthescreen.
8.SlowlypresstheDeflection Yokeand setit whereauniformgreenfieldisobtained.
9.AdjustroughlytheLowLightcontrolsand makesurethatauniformwhitefieldisobtained.
10.Tightentheclampscrew.
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5.9CONVERGENCE
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1.Applyacrosshatchpatternsignaland setContrastcontroltothemaximumposition.
2.AdjustBrightcontroltoobtainaclearpattern.
3.AdjustRedand Bluelineatcenterofthescreen.
4.AdjustRedand BluewithGreenlineatcenterofthescreenby rotating(RB)-Gstatic
convergencemagnet.
5.Lockconvergencemagnetswithsiliconesealer.
6.RemovetheDY wedgesand slightlytilttheDeflection Yokevertically.
7.FixtheDeflection Yokeby re-insertingtheDY wedges.
8.Ifpurityerrorisfound, repeat“ColourPurity”adjustment.
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5.10 WHITE BALANCE(MARKET MODE
CHK3)
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Preparation
1.Receiveacolourbarsignalwithcolour“OFF”,and operatetheTVsetformorethan30
minutes.
2.Setthepicturemenu to“DYNAMICNORMAL”and theAItooff.
3.Connectan oscilloscopetoTPL7with DCmode.
4.SettheTVsetto MarketMode:whitebalanceadjustment(CHK3).
5.ScreenVR:Min.
6.SetthedatalevelofRGBCUTOFF /DRIVEand SUBBRIGHT.
AdjustmentofLowLight
1.AdjustmentSub Bright,sothatY=6.3 ±1.0nit.
2.AdjustmentR-CUTOFF,sothatX=0.243±0.010 nit.
3.AdjustmentG-CUTOFF,sothatY=0.255±0.010 nit.
AdjustmentofLowLight
1.AdjustmentSub Bright,sothatY=150 nit.
2.AdjustmentR-Drive, sothatX=0.260 ±0.010 nit.
3.AdjustmentB-Drive, sothatY=0.265 ±0.010 nit.
Adjustment
1.SelectG-CUTOFFadjustmentmodeandcollapseverticalscan.
2.AdjustG-CUTOFFcontrolto becometheDC=0Vtovideolevelat180 VasshowninFig. 1.
DisplayData Level
R-CUTOFF63
G-CUTOFF128
B-CUTOFF63
R-DRIVE128
B-DRIVE128
SUBBRIGHT 63
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Fig. 1
3.Slowlyturnthescreencontrolclockwiseuntil agreencolourhorizontallineappearson the
picturetube.Thisisthesettingpointforthescreencontrol.
Note:
Do notadjusttheG-CUTOFFsettinginthefollowingprocedure.
4.AdjusttheremainingRand B-CUTOFFcontrolssoastogetawhitehorizontallineon the
screen.
5.Returntofull fieldSCAN by pushingtheposition 5 keyon theremotecontrol.
6.AdjusttheR-Driveand B-Drivecontrolsastoobtainauniformwhiteon thewhitebarofthe
greyscalepattern.
7.ConfirmcorrectB/Wrendition and greyscaletrackingorrepeatCUTOFF and drivecontrol
setup.
Note:
Writedowntheoriginalvalueforeachaddressadjustmentbeforeadjustinganything.
Fig. 2
8.WedgeAshowninFig.2shouldbefixedwithinarangeof45°totheleftoftheverticalline
asshown.
9.AfterinsertingwedgeA,insertwedgesB,Cand D.
Thewedgesshouldbeset90°apartfromeachother.
10.Becertain thatthefourwedgesarefirmlyfixedand theDeflection Yokeistightlyclampedin
placeotherwisetheDeflection Yokemayshiftitsposition and causealossofconvergenceand
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