Panasonic PT53X54J - 53" PROJECTION TV HD User manual

MTNC040520C1
B19
HDTVMONITOR
PT-53X54J
GN1P
2004 Matsushita ElectricIndustrial Co., Ltd. All rights reserved.
Unauthorizedcopying and distribution isaviolation oflaw.
1. Safetyprecautions
General guidelines
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Anisolation transformershouldalways beusedduring theservicing ofareceiverwhose chassis
isnotisolatedfrom ACpowerline. Use atransformerofadequatepowerrating as thisprotects
thetechnicianfrom accidentsresulting inpersonal injuryfrom electrical shocks. Itwill also
protectthereceiverfrom being damagedbyaccidental shorting thatmay occur during servicing.
Whenservicing, observe theoriginal leaddress, especiallyinthehigh voltagecircuit. Replace all
damagedparts(alsopartsthatshowsignsofoverheating.)
Always replace protective devices, suchas fishpaper, isolation resistorsand capacitors, and
shieldsafterservicing thereceiver. Use onlymanufacturer’srecommendedrating for fuses,
circuitsbreakers, etc.
High potentialsarepresentwhenthisreceiverisoperating. Operation ofthereceiverwithoutthe
rearcoverintroduces dangerfor electrical shock. Servicing shouldnotbeperformedbyanyone
who isnotthoroughlyfamiliarwiththenecessaryprecautionswhenservicing high voltage
equipment.
Extremecareshouldbepracticedwhenhandling thepicturetube. Rough handling may cause it
toimplodeduetoatmosphericpressure. (14.7lbspersq. in.). Donotnick or scratchtheglass or
subjectittoanyunduepressure. Whenhandling, usesafetygoggles and heavy gloves for
protection. Dischargethepicturetubebyshorting theanodetochassisground (nottothe
cabinetor toothermounting hardware). Whendischarging connectcoldground (i.e. dagground
lead)totheanodewithawellinsulatedwireor use agrounding probe.Avoidprolongedexposure
atclose rangetounshieldedareas ofthepicturetubetopreventexposuretoxray radiation.
Thetestpicturetubeusedfor servicing thechassisatthebenchshouldincorporatesafetyglass
and magneticshielding. Thesafetyglass provideshielding for thetubeviewing area againstx
ray radiation as well as implosion. Themagneticshieldlimitsthexray radiation around thebell of
thepicturetubeinaddition totherestricting magneticeffects. Whenusing apicturetubetestjig
for service, ensurethatthejigiscapableofhandling 50kV withoutcausing xray radiation.
Beforereturning aservicedreceivertotheowner, theservice technicianmustthoroughlytest
theunittoensurethatiscompletelysafetooperate. Donotuse alineisolation transformerwhen
testing.
Leakagecurrentcoldcheck
Unplug theA.C. cord and connectajumperbetweenthetwoplug prongs.Measuretheresistance
betweenthejumperedACplug and expose metallicpartssuchas screwheads, antenna
terminals, control shafts, etc. Iftheexposedmetallicparthas areturnpathtothechassis, the
reading shouldbebetween240k and 5.2M . Iftheexposedmetallicpartdoes nothave a
return pathtothechassis, thereading shouldbeinfinite.
Leakagecurrenthotcheck
Plug theACcord directlyintotheACoutlet. Donotuse anisolation transformerduring thecheck.
Connecta1.5k 10 watt resistor inparallel witha0.15 Fcapacitor betweenanexposed
metallicpartand ground. Use earthground, for exampleawaterpipe.
Using aDVMwitha1000 ohms/voltsensitivityor higher, measuretheACpotential across the
resistor.
Repeattheprocedureand measurethevoltagepresentwithall otherexposedmetallicparts.
Verifythatanypotential does notexceed0.75 voltRMS. Aleakagecurrenttester(sucha
Simpson model 229, Sencoremodel PR57 or equivalent) may beusedintheabove procedure, in
whichcase anycurrentmeasuremustnotexceed0.5milliampere.Ifanymeasurementisoutof
thespecifiedlimits, thereisapossibilityofashock hazard and thereceivermustberepairedand
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recheckedbeforeitisreturnedtothecustomer.
Hotcheck circuit
Insulation test
Connectaninsulation testerbetweenanexposedmetallicpartand A.C. line. Apply1080VAC/
60Hzfor 1second. Confirm thatthecurrentmeasurementis0.5mA~2.0mA. Repeattestwith
othermetallicexposedparts.
X-ray radiation
WARNING
Thepotential source ofx-ray radiation inthePTV setisinthehigh voltagesection and the
picturetube.
NOTE
Itisimportanttouse anaccurate, calibratedhigh voltagemeter.
Applyall black videosignals(1080i)and confirm high voltagemeasures 31.5±1.0kV. Ifthehigh
voltageisnotwithintherange, changeC514 (inD-Board)to1800pF, 2000pF, 2400pF or 2700pF
until thedesiredvalueisobtained.ApplyNTSCwhitepattern and confirm thehigh voltage
measures 30.1±1.5kV. ApplyHD 1080i whitepattern and confirm thehigh voltagemeasures 30.1
±1.5kV.
2. About lead free solder(PbF)
NOTE
Leadislistedas (Pb)intheperiodictableofelements. / Intheinformation below, Pbwill referto
leadsolder, and PbF will refertoLeadFree Solder. / Theleadfree solderusedinour
manufacturing process and discussedbelowis(Sn+Ag+Cu). / ThatisTin(Sn), Silver(Ag)and
Copper(Cu)although othertypes areavailable.
Thismodel uses PbFree solderinit’smanufactureduetoenvironmental conservation issues. For
/ service and repairwork, we’dsuggesttheuse ofPbfree solderas well, although Pbsoldermay
be/ used. / PCBsmanufacturedusing leadfree solderwill have the“PbF”or aleafsymbol
stampedon the/ back ofPCB.
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CAUTION
-Pbfree solderhas ahighermelting pointthanstandardsolder.
Typicallythemelting pointis50 ~70 °F(30 ~40 °C)higher. Please
use ahigh temperaturesoldering iron and set itto700 ±20 °F(370
±10 °C).
-Pbfree solderwill tend tosplashwhenheatedtoo high (about1100
°For600 °C). / Ifyou must use Pbsolder, please completely
removeall ofthePbfree solderon thepinsorsolderarea before
applying Pbsolder. Ifthisisnotpractical, besuretoheat thePb
free solderuntil itmelts, beforeapplying Pbsolder.
-Afterapplying PbF soldertodoublelayeredboards, please check
thecomponentsideforexcess solderwhichmayflow ontothe
opposite side.
SuggestedPbfree solder
Thereareseveral kindsofPbfree solderavailablefor purchase. Thisproductuses Sn+Ag+Cu
(tin, silver, copper)solder. However, Sn+Cu(tin, copper), Sn+Zn+Bi (tin, zinc, bismuth)soldercan
alsobeused.
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3. Important safetytests
Measuring H.V.
TheanodecapsarecementedtotheCRTs. Togainaccess for high voltagemeasurement,
remove theredCRT’sanodeleadfrom theflyback transformerdistributor. Grasptheanodelead
protective capatitsbottom and squeezeitagainstthelocking capbodyinside, rotate1/4turn
counterclockwise and pull theanodeleadsleeve outoftheFBTdistributor. Connectahigh
voltagepositive leadfrom your H.V. metertotheFBTdistributor, and thecommon negative lead
tocoldground
FBTleadsremoval
Note:
ReinserttheanodeleadintotheFBTdistributor until itistightlyand fullyseated. Turn the
locking capclockwise tolock inplace.
(EHT)Protector operation check
Withthecabinetback removed, applyanominal 120V A.C. tothePTV.
Overvoltagetest
Preparation:
1. TurnPTV“OFF”
2. Connect aNTSCsignal generatortotheantennaterminal.
3. Connect DVMpositiveleadtoD31 pin2and negativeleadtoD31
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pin1on D-Board H.V. measurement
4. Connect aH.V. meter(statictype, class 0.1) withhigh voltage
leadstohigh voltagedistributoron FBT.
DVMand powersupplyconnection
5. Connect the15 ~25 VDC variablepowersupplypositiveleadto
D34 orIC802 pin2(DBoard)and negativeleadtoheat sinkof
Q551 orD825
Procedures:
1. ApplyaNTSCwhite pattern.
2. TurnPTVON.
3. Adjust thepictureorbrightness controlssothat theDVMreads
12.7±0.4volts.
4. Increase thevariablepowersupplyuntil set turnsoff. Theset
shouldturnoff at 12.7±0.4volts (DVM)and high voltageless than
36.4kV.
5. IftheDVMreading isotherthan12.7±0.4volts, readjust pictureor
brightness control and repeat steps3.
6. Turnoff thevariablesupplyand confirm that theset will turnon by
pulling outACplug socket and connecting itagain.
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4. Service notes
NOTE
These componentsareaffixedwithglue. Becareful nottobreak or damageanyfoil underthe
componentor atthepinsoftheICswhenremoving. Usuallyapplying heattothecomponentfor a
shorttimewhiletwisting withtweezerswill break thecomponentloose.
Leadless chipcomponent(surface mount)
Chipcomponentsmustbereplacedwithidentical chipsduetocritical foil track spacing. There
areno holes intheboard tomountstandard transistorsor diodes. Somechipscapacitor or
resistor board solderpadsmay have holes through theboard,howevertheholediameterlimits
standard resistor replacementto1/8watt. Standard capacitor may alsobelimitedfor thesame
reason. Itisrecommendedthatidentical componentsbeused.
Chipresistor have athree digitnumerical resistance code, 1stand 2nd significantdigitsand a
multiplier. Example:162 =1600 or 1.6k resistor, 0=0 (jumper).
Chipcapacitorsgenerallydo nothave thevalueindicatedon thecapacitor. Thecolor ofthe
componentindicates thegeneral rangeofthecapacitance.
Chiptransistorsareidentifiedbyatwolettercode. Thefirstletterindicates thetypeand the
second letter, thegradeoftransistor.
Chipdiodes have atwoletteridentification codeas perthecodechartand areadual diodepack
witheithercommon anodeor common cathode. Check thepartslistfor correctdiodenumber.
Componentremoval
1. Use solderwick toremovesolderfromcomponentend capsor
terminal.
2. Withoutpulling up, carefullytwist thecomponentwithtweezersto
break theadhesive.
3. Donotreuse removedleadless orchipcomponents since theyare
subject tostress fractureduring removal.
Chipcomponentinstallation
1. Putasmall amountofsolderon theboardsoldering pads.
2. Holdthechipcomponentagainst thesoldering padswithtweezers
orwithaminiaturealligatorclipand applyheat tothepadarea
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witha30 watt iron until solderflows. Donotapplyheat formore
than3seconds.
Howtoreplace flatic(requiredtools)
1. Removethesolderfromall ofthepinsofaFlat ICbyusing a
desolderbraid
2. Puttheiron wireunderthepinsoftheFlat ICand pull itinthe
direction indicatedwhileheating thepinsusing asoldering iron. A
small awl canbeusedinsteadoftheiron wire.
3. Removethesolderfromall thepadsoftheFlat ICbyusing ade
solderbraid
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4. Position thenew Flat ICinplace (applythepinsoftheFlat ICto
thesoldering padswherethepinsneedtobesoldered). Properly
determinethepositionsofthesoldering padsand pinsby
correctlyaligning thepolaritysymbol
5. Solderall pinstothesoldering padsusing afinetippedsoldering
iron
6. Check withamagnifierforsolderbridgebetweenthepinsorfor
dryjointbetweenpinsand soldering pads. To removeasolder
bridge, use adesolderbraidas showninthefigurebelow
IMPORTANT
To protect against possibledamagetothesolidstate devices dueto
arcing orstaticdischarge, make certainthat all ground wires are
securelyconnected
CAUTION
Thepowersupplycircuitisaboveearthground and thechassis
cannotbepolarized. Use anisolation transformerwhenservicing
thereceivertoavoiddamagetothetest equipmentortothe
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chassis. Connect thetest equipmenttotheproperground(HOTor
COLD)whenservicing, orincorrect voltages will bemeasured.
WARNING
Thisreceiverhas beendesignedtomeet orexceedapplicablesafety
and x-rayradiation protection as specifiedbygovernmentagencies
and independenttesting laboratories.
To maintainoriginal product safetydesign standardsrelativetox-
rayradiation and shock and firehazard, parts indicatedwiththe
symbol on theschematicmust bereplacedwithidentical parts.
Orderparts fromthemanufacturer’sparts centerusing theparts
numbersshowninthisservice manual, orprovidethechassis
numberand thepartreference number.
Foroptimumperformance and reliability, all otherparts shouldbe
replacedwithcomponents ofidentical specification.
5. PTVLocation of controls
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6. Receiverfeaturetable
FEATURE/MODEL PT-53X54J
CHASSIS AP832
MICRO 256K
MENU LANGUAGE ENGLISH/SPANISH/FRENCH
CLOSEDCAPTION X
V-CHIP (USA/CANADA) X
CHANNELINFOBANNER X
VIDEOINPUTSKIP SKIP
CHANNELCOUNT 181
CHANNELCOUNT 181
PIP (1T), 2TPIP (2T), 2TSPLIT 2TSPLIT
REMOTE CONTROL(W/LIGHT) EUR7603ZF0
CRTSUPPLIER MDDA(CENTAUR IV)
SCREEN W/PROTSCREEN
CHASSIS GN1P
COMBFILTER MOTIONADP, 3DY/C
HEC/VEC(X=BOTH) X
NEWYNR X
VM X (SELECTABLE)
V/ANORM(X=BOTH) X
COLORTEMP X
AUTOCONVERGENCE X
AIP X
PRESET/INPUTLABELING X
VIDEOPICTURE MEMORY X
DIGITALSCANRATE 1080i, 540p
NTSCLINE DOUBLER 540pPROGRESSIVE (NEW)
MTS/SAP/DBX X
BUILT-INAUDIOPOWER 15Wx2(10%)
No. OFSPEAKERS 4
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FEATURE/MODEL PT-53X54J
BASS/BALANCE/TREBLE
CONTROL X
AISOUND X
SURROUND X
SPATIALIZER/BBE BBE
A/V IN(REAR/FRONT) 4(3/1)
A/V PROGRAMOUT X
AUDIOOUT(FAO:F, VAO:V) F,V
COMPONENTINPUT(Y, Pb, Pr) 2
S-VIDEOINPUT(REAR/FRONT) 2/1
HDMI/HDCP INPUT X
Note:
Specificationsaresubjecttochangewithoutnotice or obligation.
7. Boarddescription table
BOARD PARTNUMBER DESCRIPTION
A-BOARD TNP2AH058 MAINCHASSIS
D-BOARD TNP2AH059 POWERSUPPLY
CD-BOARD TNP2AA166 AUTOCONVERGENCE SENSOR
*DC-BOARD TNP2AA163 CONVERGENCE PROCESSING
*DG-BOARD TNP2AA173AE MPU, VIDEOSIGNAL
PROCESSING
G-BOARD TNP2AA164 FRONTA/V INPUT
H-BOARD TNP2AA174AD REARA/V INPUTS
K-BOARD TNP2AA165 KEYBOARD PANEL
LB-BOARD TNP2AA161 BLUE PRT
LG-BOARD TNP2AA160 GREENPRT
LR-BOARD TNP2AA162 REDPRT
R-BOARD TNPA0615AB IRSENSOR
NOTE
Whenordering areplacementboard assembly, append an“S”totheboard number
EXAMPLE
ToordertheABoard, thereplacementboard isTNP2AH058S
*
CD-Board, DC-Board and DG-Board arenon-serviceableboards, exceptfor theconnector
JK5001 inDG-Board. Ifanyofthese boardsaredefective, replace itwithanewone.
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8. Location of controls(EUR7603ZF0 remote)
Note:
For additional information for thisremoteplease refertotheowner’smanual section remote
operation, listedon thepartslistsection.
9. Autodiagnosisfeature
Thisreceiverincorporates aselfdiagnosisfeature. Withthisfeatureitwill beeasierfor the
techniciantodetectfailures. ThereisaLEDlocatedbythekeyboard on thefrontpanel, thisLED
will startflashing whenSOS isdetectedbythecircuitslocatedinspecificareas, depending on
howmanytimes theLEDisflashing, thiswill indicatewhatcircuitshouldbechecked. Make a
countofflashing and see thetableshownbelow. Please use thisfeatureeffectivelyespeciallyfor
intermittentproblems.
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NUMBER
OF
FLASHES
POSSIBLE CAUSE
1 POWERSUPPLYAND/ORVERTICAL
2LOWDC
3 CONVERGENCE (DC-BOARD)
4SUB9V
5HHS
6IC4001
7IC4201
8IC4401
10. EEPROMcopyjig
ThisPTV has afeaturethatallowstocloneconvergence from mainEEPROMdataadjustments
from aPTV tootherbyconnecting ajigtothePTV set, or canbeusedtoback-up databefore
making adjustments. AjigpartnumberTXFJIG01SER, isavailablethrough Matsushita/Panasonic
Services.
Preparation:
Toconnectthisjig, remove thelowerback coveras instructedon disassemblyfor service
section on thisservice manual and insertthejigintoA15 connector locatedon A-Board. (See
figure).
Proceduretocopydata:
1. Entertoservice modeand displayservice menu (see service
modesection).
2. Select “AREA”DACand thenpress ACTIONbutton on remote to
enter. Press VOLright/left toselect oneofthefollowing options
thenpress ACTION:
-Select ALL tocopyall mainEEPROMdata
-Select ADJtocopyonlyadjustmentdata.
-Select FIXtocopyonlyfixdata
3. To copydata frommainEEPROMtojig, select “IN EX”DACand
press ACTIONbutton on remote. Theregisterbackground will
momentarilybecomeyellow indicating that copyisinprogress.
4. To copydata fromjigtomainEEPROM, select “EX IN”DACand
press ACTIONbutton on remote. Theregisterbackground will
momentarilybecomeyellow indicating that copyisinprogress.
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Proceduretocopyconvergence:
1. Entertoservice modeand displayservice menu
2. Select “FINE”DACand press ACTIONon remote.
3. Press “8”on remote.
4. Select fromand thenpress ACTIONon remote:
-INTtocopydata frominternal EEPROMtojig
-EXTtocopyfromjigtointernal EEPROM.
5. Select anoption fromthemenu withCH keysand confirm with
ACTION:
-DEFAULT:defaultfactorypreset
-CURRENT:tocopythecurrent(receiverdata orjigdata)
convergence adjustments tomemory.
-NOTUSE:toback up data.
-ALL:tocopyall data.
NOTE:
Thestatedas defaultfactorypresetcontainthefactoryDATA;Use thisoption whendata
was lostor whenadjustmentislostcompletely.
6. Select destination tocopy(INTorEXT)and confirm withACTION.
7. Once anoption isselectedthecopyprocess begins.
8. To exit“FINE”registerpress POWERand select “YES”option
withACTION. WhentheAUTO OFFSETprocess end, shutoff the
receiver.
9. RemovethecopyjigfromA15.
EEPROMcopyjigconnection
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11. A-Boardcheck points
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12. Chassis&boards layout (location of main
components) Chassisand boardslayout
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Chassisand boards(FRONT)
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A-BOARD
20