JVC HV-29JH24 User manual

SERVICEMANUAL
COPYRIGHT©2004VictorCompanyof Japan,Limited No.YA164
2004/1ï
COLOUR TELEVISION
YA164200410
HV-29JH24,
HV-29JH74/G
TABLEOFCONTENTS
1PRECAUTION... ... .. .... .. ... ... ... .. ... ... ... .. .... .. ... ... ... .. ... .. . ... ... .. .... ..1-3
2SPECIFICSERVICEINSTRUCTIONS. ... .. .... ... .. ... ... ... .... ... ... ... .. ... .... .. . . .. ..1-4
3DISASSEMBLY... ... .. ... ... .. ..... .. ... ... ... .. .... ... ... ... ... .. .... . . ... ... ... ... .1-6
4ADJUSTMENT. .. ... ... .... ... ... .. .... .. ... .... ... ... ... .. ... ... ... .. . .. .. .. .... .. ..1-12
5TROUBLESHOOTING. .... .. ... ... ... .. ... ... ... .. .... .. ... ... ... .. ... ... ... .. .... .. ..1-30
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1-2(No.YA164)
SPECIFICATION
Designandspecificationssubjecttochange withoutnotice.
ItemsContents
Dimensions(W IH ID)73.1cm I62.2cm I49.4cm
Mass44kg
TVRFSystemB,G,I,D,K,K1,M
ColourSystemPAL/SECAM/ NTSC3.58 /NTSC4.43
StereoSystemA2(B/G, D/K),NICAM(B/G,I, D/K)
TeletextSystemFLOF(Fastext),WST(WorldStandardSystem)
Receiving
Frequency
VHFLow
VHFHigh
UHF
CATV
46.25MHz~168.25MHz
175.25MHz~463.25MHz
471.25MHz~855.25MHz
Mid(X~Z+2, S1~S10)/Super(S11~S20)/ Hyper(S21 ~S41)bands
Intermediate
Frequency
VIF
SIF
38.0MHz(B,G, I, D,K,L)
32.26MHz(5.74MHz:B), 32.15MHz(5.85MHz:G),31.45MHz(6.55MHz:I)
31.75MHz(6.25MHz:D), 32.15MHz(5.85MHz: K)
ColourSub
Carrier
PAL
SECAM
NTSC
4.43MHz
4.40625MHz/ 4.25MHz
3.58MHz/4.43MHz
PowerInputAC110V~240V, 50Hz/60Hz
PowerConsumptionAvg.150W
PictureTubeVisiblesize:67.6cm, Measured diagonallyH: 55.4cm IV:41.4cm
High Voltage31.0kV(+1kV/-1.5kV)(atzerobeamcurrent)
Speaker6.5cm I13cm,ovaltype I2
AudioPowerOutput10 W+10 W(Ratedpoweroutput)
AerialInput75 unbalanced,coaxial
Video / Audio
INPUT-1/2/3/4
ComponentVideo
[INPUT-3]
625i/ 525i/625p/525p
S-Video
[INPUT-1/4]
Video
Audio
RCApinjack I3
Y:1V(p-p),Positive(Negativesyncprovided),75
Cb/Cr:0.7V(p-p),75
Mini-DIN4pinconnector I2
Y:1V(p-p),Positive(Negativesyncprovided), 75
C:0.286V(p-p)(Burstsignal),75
1V(p-p),Positive(Negativesyncprovided),75 ,RCApinjack I4
500mV(rms),High impedance,RCApinjack I8
Video / Audio
Output
Video
Audio
1V(p-p),Positive(Negativesyncprovided),75 ,RCApinjack I1
500mV(rms),Lowimpedance,RCApinjack I2
Headphone jack3.5mm stereominijack I1
RemoteControlUnitRM-C1351 (UM-3/AA/R6drycellbattery I2)[HV-29JH24]
RM-C1350 (UM-3/AA/R6drycellbattery I2)[HV-29JH74/G]

(No.YA164)1-3
SECTION1
PRECAUTION
1.1SAFETYPRECAUTIONS
(1)The designofthisproductcontainsspecialhardware,
manycircuitsand componentsspeciallyforsafety
purposes. Forcontinued protection, no changesshouldbe
made tothe originaldesign unless authorized inwritingby
the manufacturer.Replacementpartsmustbeidenticalto
thoseused inthe originalcircuits.Serviceshouldbe
performedbyqualifiedpersonnelonly.
(2)Alterationsof thedesign orcircuitryof theproductsshould
notbe made.Anydesign alterationsoradditionswill void
the manufacturer'swarrantyandwillfurtherrelievethe
manufacturerofresponsibilityforpersonalinjuryor
propertydamage resulting therefrom.
(3)Manyelectricaland mechanicalpartsintheproductshave
specialsafety-related characteristics.These
characteristics areoften notevidentfromvisualinspection
norcan the protectionafforded bythemnecessarilybe
obtained byusing replacementcomponentsrated for
highervoltage,wattage,etc.Replacementpartswhich
havethesespecialsafetycharacteristics areidentified in
the partslistofServicemanual. Electricalcomponents
having suchfeatures areidentifiedbyshading on the
schematics and by()on thepartslistinService
manual.The useofasubstitutereplacementwhichdoes
nothavethe samesafetycharacteristicsasthe
recommended replacementpartshowninthe partslistof
Servicemanualmaycauseshock,fire, orotherhazards.
(4) Don'tshortbetweentheLIVE sidegroundand
ISOLATED(NEUTRAL)sidegroundorEARTHside
ground whenrepairing.
Somemodel'spowercircuitispartlydifferentinthe GND.
The differenceofthe GND isshownbythe LIVE :()side
GND,the ISOLATED(NEUTRAL):()side GND and
EARTH:()side GND.
Don'tshortbetweentheLIVE side GND andISOLATED
(NEUTRAL)side GND orEARTHsideGND and never
measurethe LIVE side GND and ISOLATED(NEUTRAL)
sideGND orEARTHside GND atthesametimewitha
measuring apparatus(oscilloscope etc.).Ifabovenotewill
not be kept, afuseoranypartswill bebroken.
(5)If anyrepairhasbeen made tothe chassis,itis
recommended thattheB1settingshouldbechecked or
adjusted (See B1VOLTAGE).
(6)The high voltage appliedtothe picturetube mustconform
withthatspecified inServicemanual.Excessivehigh
voltage cancausean increaseinX-Rayemission,arcing
andpossiblecomponentdamage,thereforeoperation
underexcessivehigh voltage conditionsshouldbekeptto
aminimum,orshouldbeprevented.Ifseverearcing
occurs,removethe ACpowerimmediatelyand determine
the causebyvisualinspection (incorrectinstallation,
cracked ormelted high voltage harness,poorsoldering,
etc.).Tomaintainthe properminimumlevelofsoftX-Ray
emission,componentsinthehighvoltage circuitry
including the picturetube mustbe the exact replacements
oralternativesapproved bythe manufacturerofthe
completeproduct.
(7)Donotcheck highvoltage bydrawing anarc.Useahigh
voltage meterorahighvoltage probe withaVTVM.
Dischargethepicturetubebeforeattemptingmeter
connection,byconnecting aclipleadtotheground frame
andconnectingthe otherendofthe leadthrough a10k
2Wresistortothe anode button.
(8)When serviceisrequired,observethe originallead dress.
Extraprecautionshouldbe given toassurecorrectlead
dressinthehighvoltage circuitarea. Whereashortcircuit
hasoccurred, thosecomponentsthatindicateevidenceof
overheating shouldbereplaced.Alwaysusethe
manufacturer'sreplacementcomponents.
(9) Isolation Check (SafetyforElectricalShock Hazard)
Afterre-assemblingthe product, alwaysperform an
isolationcheck on theexposedmetalpartsofthe cabinet
(antenna terminals,video/audioinputand outputterminals,
Controlknobs,metalcabinet, screwheads,earphonejack,
controlshafts,etc.)tobe suretheproductissafetooperate
withoutdangerofelectricalshock.
a) DielectricStrengthTest
The isolationbetweentheACprimarycircuit andallmetal
partsexposed totheuser,particularlyanyexposedmetal
part having areturnpathtothechassisshouldwithstanda
voltage of3000VAC(r.m.s.)foraperiodof one second.(.
...Withstandavoltage of1100VAC(r.m.s.)toan
appliancerated up to120V,and 3000VAC(r.m.s.)toan
appliancerated 200Vormore,foraperiod ofone second.)
Thismethodof testrequiresatestequipmentnotgenerally
found inthe servicetrade.
b) LeakageCurrentCheck
Plug the ACline corddirectlyintothe ACoutlet(donotuse
alineisolation transformerduringthischeck.).Using a
"Leakage CurrentTester",measurethe leakagecurrent
fromeachexposed metalpartofthe cabinet,particularly
anyexposedmetalparthaving areturnpathtothe chassis,
toaknowngood earthground (waterpipe,etc.).Any
leakagecurrentmustnotexceed 0.5mAAC(r.m.s.).
However,intropicalarea,thismustnotexceed 0.2mAAC
(r.m.s.).
AlternateCheck Method
Plug the ACline corddirectlyintotheACoutlet(donot
usealine isolationtransformerduring thischeck.).Use
an ACvoltmeterhaving 1000 pervoltormore
sensitivityinthefollowing manner.Connecta1500
10Wresistorparalleled bya0.15kFAC-type capacitor
between an exposedmetalpartand aknowngoodearth
ground (waterpipe,etc.).Measurethe ACvoltage
acrossthe resistorwiththe ACvoltmeter.Movethe
resistorconnectiontoeachexposed metalpart,
particularlyanyexposed metalparthavingareturnpath
tothechassis,and measurethe ACvoltage acrossthe
resistor.Now,reversethepluginthe ACoutletand
repeateachmeasurement. Anyvoltagemeasured must
notexceed0.75VAC(r.m.s.).Thiscorrespondsto
0.5mAAC(r.m.s.).
However, intropicalarea,thismustnotexceed0.3VAC
(r.m.s.).Thiscorrespondsto0.2mAAC(r.m.s.).
AC VOLTMETER
(HAVING1000/V,
OR MORESENSITIVITY)
PLACETHISPROBE
ON EACH EXPOSED
METALPART
150010W
0.15FAC-TYPE
GOOD EARTH GROUND

1-4(No.YA164)
SECTION2
SPECIFICSERVICEINSTRUCTIONS
2.1FEATURES
DigiPure
Thisfunction usesthelatestindigitaltechnologytogiveyou a
natural-looking picture.
Progressive Scan(525P/ 625Psignalpossible)
ThisTVcan displaythe Progressivevideosignalbothof 525P
(NTSC)and 625P(PAL)signal.
CinemaSurround
The CinemaSurroundfunction givesyou asurround sound
witha"live" effect.
PICTUREMODE
Thisfunctioncan adjust the picturesettingsautomatically.
ThereareBRIGHT,STANDARD andSOFT inthePICTURE
MODE.
RETURN +
Thisfunction can setachannelyou frequentlyviewtothe
ReturnChanneland you can viewthatchannelatanytimewith
one-touch.
2.2MAINDIFFERENCELIST
ItemHV-29JH24HV-29JH74/G
PIPFunctionNOYES
REMOTECONTROLUNITRM-C1351-1HRM-C1350-2H
MAINP.W.BSML-1512A-H2SML-1513A-H2
POWER&DEFP.W.BSML-2505A-H2
CRTSOKETP.W.BSML-3503A-H2
FRONTCONTROLP.W.BSML-8502A-H2
AV JACKP.W.BSML0J505A-H2SML0J506A-H2
MICON/100HZP.W.BSML0Z504A-H2SML0Z503A-H2

(No.YA164)1-5
2.3TECHNINALINFORMATION
2.3.1MAINMI-COM (CPU)PINFUNCTION
Pin
No. PinnameI/OFunction Pin No. PinnameI/OFunction
1TCKINot used65D2I/ODatabit forPP-RAM/SD-RAM
2TMSINot used66D12I/ODatabit forPP-RAM/SD-RAM
3TDIINotused67D10I/ODatabit forPP-RAM/SD-RAM
4TDOONot used68VSS33--GND
5P2.8IRemotecontrol69VDD33i3.3V
6P2.9IKeyscan forfront controlCH+(On: L)70D4I/ODatabit forPP-RAM/SD-RAM
7P2.10IKeyscan forfront controlCH-(On: L)71D3I/ODatabit forPP-RAM/SD-RAM
8P2.11IKeyscan forfront controlMENU (On: L)72D11I/ODatabit forPP-RAM/SD-RAM
9P2.12IReceivedataforTV_LINK73RSTINIReset formainCPU
10P2.13OPoweron /off control(ON: L)74P3.0I/ODataforinterIC controlbus
11P2.14I X-rayHBLBEWcorrection Protection detection (Normal:H) 75P3.1I/ODataforinterIC controlbus
12P2.15IMainpowerdetection (Normal: H)76P3.2IRemotecontrol
13VSS33--GND77P3.3OPowerindication control(On:L)
14VDD33i3.3V78P3.4OAudiomuting(Muting: H)
15P4.5/CS3OOutput dataforTV_LINK79P3.5OAudiomuting(Muting: H)
16P4.4/A20OAddressbit forPP-RAM/SD-RAM80P3.6ONot used
17P4.3/A19OAddressbit forPP-RAM/SD-RAM81P3.7ONot used
18P4.2/A18OAddressbit forPP-RAM/SD-RAM82P3.8I/ONotused
19P4.1/A17OAddressbit forPP-RAM/SD-RAM83P3.9I/ONotused
20VSS25--GND84VSS33--GND
21VDD25I2.5V85VDD33I3.3V
22P4.0/A16OAddressbit forPP-RAM/SD-RAM86VSS25--GND
23A8OAddressbit forPP-RAM/SD-RAM87VDD25I2.5V
24A7OAddressbit forPP-RAM/SD-RAM88TXD0I/ONot used
25A9OAddressbit forPP-RAM/SD-RAM89RXD0I/ONot used
26A6OAddressbit forPP-RAM/SD-RAM90P3.12ONotused
27A5OAddressbit forPP-RAM/SD-RAM91P3.13ONotused
28A10OAddressbit forPP-RAM/SD-RAM92P3.15ONot used
29A11OAddressbit forPP-RAM/SD-RAM93P5.14IRGBinput of EXT-2active
30A12OAddressbit forPP-RAM/SD-RAM94P5.15IHeadphone connection detection (Connect: H)
31VSS33--GND95TRIG_IN--Not used
32VDD33i3.3V96TRIG_OUT--Not used
33A4OAddressbit forPP-RAM/SD-RAM97P6.2ONotifiesbusfree state(Stop mode: H)
34A3OAddressbit forPP-RAM/SD-RAM98P6.3OClockforinterIC controlbus
35A2OAddressbit forPP-RAM/SD-RAM99P6.4I/ODataforinterIC controlbus
36A1OAddressbit forPP-RAM/SD-RAM100P6.5OMSP reset (Reset: H)
37A0OAddressbit forPP-RAM/SD-RAM101P6.6--Not used
38A13OAddressbit forPP-RAM/SD-RAM102VSYNCIVerticalsync
39A14/RASORow addressstrobe forSD-RAMaccess103HSYNCIHorizontalsync
40A15/CASOColumnaddressstrobe forSD-RAMaccess104COR/RSTOUTOOutput forcontrastreduction
41VSS33--GND105BLANK/CORBLAOYsforOSD Teletext(blanking)
42VDD33I3.3V106VDD33I3.3V
43MEMCLKOClockforSD-RAM107VSS33--GND
44CSSDRAMOChipselectsignalforSD-RAMdevice108XTAL1ISystemclock(4MHz)
45CLKENOEnableformemoryclock109XTAL2OSystem clock(4MHz)
46CSROMOChipselectsignalforPP-ROMdevice110VSSA--GND
47RDOExternalmemoryreadstrobeforPP-ROM111VDDAI2.5V
48UDQMOWritedisableforhigh byte112RORed forOSD / Teletext
49LDQMOWritedisableforlow byte113GOGreenforOSD / Teletext
50WROMemorywritestrobe114BOBlue forOSD / Teletext
51D15I/ODatabit forPP-RAM/SD-RAM115VSSA--GND
52VSS33--GND116VDDA--2.5V
53VDD33I3.3V117CVBS2ICompositevideo forWSS
54D7I/ODatabit forPP-RAM/SD-RAM118VSSA--GND
55D0I/ODatabit forPP-RAM/SD-RAM119VDDAI2.5V
56D14I/ODatabit forPP-RAM/SD-RAM120CVBS1BIGroundforCVBS1A
57D8I/ODatabit forPP-RAM/SD-RAM121CVBS1AICompositevideo forTeletextdecorder
58D6I/ODatabit forPP-RAM/SD-RAM122VSSA--GND
59D1I/ODatabit forPP-RAM/SD-RAM123VDDAI2.5V
60VSS33--GND124P5.0IAFT voltage fortuner
61VDD33I3.3V125P5.1--Not used
62D13I/ODatabit forPP-RAM/SD-RAM126P5.2IAGCvoltagefortuner
63D9I/ODatabit forPP-RAM/SD-RAM127P5.3--Not used
64D5I/ODatabit forPP-RAM/SD-RAM128TMODEITest mode

1-6(No.YA164)
SECTION3
DISASSEMBLY
3.1DISASSEMBLYPROCEDURE
3.1.1REMOVINGTHEREARCOVER
(1)Unplug the powercord.
(2)Removethe 16screws [A].
(3)WithdrawtheREARCOVERtowardyou.
3.1.2REMOVING THEAVTERMINALBOARD
Removethe REARCOVER.
(1)Removethe5screws [B].
(2)Withdrawthe AV TERMINALBOARD towardyou.
3.1.3REMOVINGTHECHASSIS
Removethe REARCOVER.
(1)Slightlyraisethe bothsidesofthe CHASSISbyhand and
removethe2clawsunderthe bothsidesofthe CHASSIS
fromthefrontcabinet.
(2)Withdrawthe CHASSISbackward.
(Ifnecessary,takeoffthewireclamp,connectorsetc.)
3.1.4REMOVING THESPEAKER
Removethe REARCOVER.
(1)Removethe2screws [C],then removethe SUPPORT
BRACKET.
(2)Removethe4screws [D],then removethespeaker.
(3)Followthe samestepswhenremoving theother
SPEAKER.
3.1.5CHECKING THEPWBOARD
Tocheckthe backsideofthe PWBoard.
(1)PullouttheCHASSIS.(RefertoREMOVINGTHE
CHASSIS).
(2)RemovetheCONTROLBASE.
(3)Frontside isturneddownandachassisisstood
perpendicularly.The check bythe side ofthesolderside of
MAINPWBand POWER&DEFPWBispossible.
CAUTION:
Whenerecting the CHASSIS, becarefulsothattherewillbe
no contactingwithotherPWBoard.
Beforeturning on power,makesurethatthewireconnector
isproperlyconnected.
Whenconducting acheck withpowersupplied,be sureto
confirm thatthe CRTEARTHWIRE(BRAIDEDASS'Y)is
connected tothe CRTSOCKETPWboard.
3.1.6WIRECLAMPING ANDCABLETYING
(1)Besuretoclampthe wire.
(2)Neverremovethe cabletieusedfortying the wires
together.
Shoulditbeinadvertentlyremoved, be sue totiethewires
withanewcabletie.

(No.YA164)1-7
Fig.1
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1-8(No.YA164)
3.2MEMORY ICREPLACEMENT
Thismodelusesthe memoryIC.
ThismemoryICstoresdataforproperoperation ofthevideo and drivecircuits.
Whenreplacing,besuretousean ICcontaining this(initialvalue)data.
3.2.1MEMORY ICREPLACEMENTPROCEDURE
1.Poweroff
Switchoffthe powerand disconnectthe powerplug fromthe
ACoutlet.
2.ReplacethememoryIC
BesuretousethememoryICwritten withthe initialsetting
values.
3.Poweron
Connectthe powerplug tothe ACoutletand switchon the
power.
4.Systemconstantcheck and setting
*Itmustnotadjust without signal.
(1)Pressthe [DISPLAY]keyand the[PICTUREMODE]keyof
the REMOTECONTROLUNITsimultaneously.
(2)The SERVICEMODEscreen ofFig.1willbe displayed.
(3)Whilethe SERVICEMODEisdisplayed,pressthe
[DISPLAY]keyand the[PICTUREMODE]key
simultaneously,andthe SYSTEMCONSTANTSET
screen ofFig.2will bedisplayed.
(4)Check the setting valuesofthe SYSTEMCONSTANT
SET.Ifthevalueisdifferent, selectthesettingitemwiththe
[MENU / ]key,and setthecorrectvaluewiththe
[MENU / ]key.
(5)Pressthe [OK]keytomemorizethe setting value.
(6)Pressthe [INFORMATION]keytwice,and returntothe
normalscreen.
5.Receivingchannelsetting
RefertotheOPERATINGINSTRUCTIONSandsetthe
receivechannels(ChannelsPreset)asdescribed.
6.Usersettings
Checkthe usersettingitemsaccordingtothe giveninpage
later.
Wherethesedo notagree,refertotheOPERATING
INSTRUCTIONSand set the itemsasdescribed.
7.SERVICEMODEsetting
Verifywhat toset intheSERVICEMODE, and setwhateveris
necessary(Fig.1).
Refertothe SERVICEADJUSTMENTforsetting.
Fig.1
Fig.2
Fig.3
3.2.2SYSTEMCONSTANTSETTING
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Setting item Setting value
HV-29JH24HV-29JH74/G
1.TEXTYESYES
2.PIPNOYES
3.COLOUR AUTONOYES
4.BLUEBACKMUTENONO
5.TUNERMA1MA1

(No.YA164)1-9
3.2.3SETTINGSOFFACTORY SHIPMENT
3.2.3.1BUTTONOPERATION3.2.3.2REMOTECONTROLDIRECTOPERATION
3.2.3.3REMOTECONTROLMENU OPERATION
(1)PICTURESETTING
(2)PICTUREFEATURES
(3)SOUND SETTING
(4)FEATURES
(5)INSTALL
Setting itemSetting position
POWEROff
CHANNELPR1
VOLUME10
TV/VIDEOTV
Setting itemSetting position
CHANNELPR1
VOLUME10
ZOOMREGULAR
TV/VIDEOTV
SLEEP TIMEROFF
DISPLAYIndicated
Setting itemSetting position
PICTUREMODEBRIGHT
CONTRAST/BRIGHT/SHARP
/COLOUR/HUE
CENTRE
WHITEBALANCEMID
Setting itemSettingposition
DIGITALVNR AUTO
DIGIPUREAUTO
PULL DOWNAUTO
COLOUR SYSTEMTVDependon thepresetchannel
VIDEOAUTO
ZOOMREGULAR
PICTURETILTCENTRE
FAVORITECHCHANNEL
FAVORITECHANNELCOLOUR
PR01RED
PR02GREEN
PR03YELLOW
PR04BLUE
PICTUREMODEBRIGHT
DIGITALVNR AUTO
WHITEBALANCEMID
DIGIPUREAUTO
PICTUREEFFECTON
VIDEOSETTING
VIDEOSTATUSVIDEO-1,2,3, 4
PICTUREMODEBRIGHT
DIGITALVNR AUTO
WHITEBALANCEMID
DIGIPUREAUTO
PICTUREEFFECTOFF
Setting itemSetting position
STEREO/ I IISTEREOSOUND
BASSCENTRE
TREBLECENTRE
BALANCECENTRE
AIVOLUMEON
CINEMASURROUNDOFF
Setting itemSetting position
SLEEP TIMEROFF
BLUEBACKON
CHILDLOCKOFF
CAHNNELGUARDIDNO.0000, AllCHoff
AUTOSHUTOFFOFF
VIDEO-3SETTINGCOMPONENT
PIP/TWIN [HV-29JH74/G] OFF
SUBINPUT [HV-29JH74/G] VIDEO-1
PIPPOSITION [HV-29JH74/G] LOWERLEFTPOSITION
Setting itemSetting position
LANGUAGEENGLISH
AUTOPROGRAMTVchannelautomaticallyset
EDIT/MANUALPRESETCH only
TELETEXTLANGUAGEGROUP-1 [HV-29JH74]
GROUP-4 [HV-29JH74/G]

1-10 (No.YA164)
3.2.4SERVICEMODESETTINGITEMS
Setting itemSetting valueSetting itemSetting value
1.IF1.VCO5. VSMPRESETBRIGHT
SOFT
STANDARD
1. CONT
2.BRIGHT
3. SHARP
4. COLOUR
5. TINT
2.V/C1.RGBBLK
2. CUTOFFR
3. CUTOFFG
4. CUTOFFB
5. WDR R
6. WDR G
7. WDR B
8. BRIGHT
9. CONT
10. COLOUR
11.HUE
12. SHARP
13. SCADJ.
14.TOPBLK
15. BTMBLK
16.YUVBRIGHT
17. YUVCONT
18. YUVCOLU
19. YUVCOLV
20.YUVYDEL
21. YUVUVDEL
22. YCDELM
COOL
WARM
NORMAL
6. WDR R
7. WDR G
8. WDR B [Donotadjust]
6. STATUS [Donotadjust] 1. SOFT
2. EEP MEMORY
7.PIP1.HUE
2. SCADJ
3. PIPHORPOS
4. PIPVERPOS
5. YCDELS
3.AUDIO1.ERR LIMIT
2.A2IDTHR
3. SYSTEM
4. SUBBASS
5.SUBTREBLE
8.SURROUND1.CH CONFIG
2.MATRIX
3. REPRODUCT
4. CENTERMODE
5.SPATIALEFF
6. VIRTUALEFF
7. BASS EFFECT
8. HARM
9. HPF
10.LPF
11.AMPLIMIT
12.LEVELADJ
13.SWC
14.SWHPF
15. VOLUME
16.HYPEREFF
17. EFFECTMOD
18.HPGAIN
4.DEF1.V-SHIFT
2. V-SIZE
3. H-CENT
4. H-SIZE
5. TRAPEZ
6. EW-PIN
7. COR-UP
8. COR-LO
9. COR-UP-S
10.COR-LO-S
11.ANGLE
12.BOW
13.V-S.CR
14. V-LIN

(No.YA164)1-11
3.3REPLACEMENTOFCHIPCOMPONENT
3.3.1CAUTIONS
(1)Avoidheating formorethan 3seconds.
(2)Donotrubthe electrodesand the resistpartsof thepattern.
(3)Whenremoving achippart, meltthe solderadequately.
(4)Donotreuseachippartafterremoving it.
3.3.2SOLDERING IRON
(1)Useahigh insulation solderingironwithathinpointed end of it.
(2)A30wsolderingiron isrecommended foreasilyremovingparts.
3.3.3REPLACEMENTSTEPS
1. HowtoremoveChipparts
[Resistors,capacitors,etc.]
(1)Asshowninthefigure,pushthepartwithtweezersand
alternatelymeltthesolderateachend.
(2)Shift withthe tweezersand removethe chippart.
[Transistors,diodes,variableresistors,etc.]
(1)Applyextrasoldertoeachlead.
(2)Asshowninthefigure,pushthepartwithtweezersand
alternatelymeltthe solderateachlead.Shiftand remove
the chippart.
NOTE:
Afterremovingthe part,removeremaining solderfromthe
pattern.
2.How toinstallChipparts
[Resistors,capacitors,etc.]
(1)Applysoldertothe patternasindicated inthe figure.
(2)Graspthe chippartwithtweezersandplaceiton the
solder.Thenheatandmeltthe solderatbothendsofthe
chippart.
[Transistors,diodes,variableresistors,etc.]
(1)Applysoldertothe patternasindicated inthefigure.
(2)Graspthe chippartwithtweezersandplaceiton the
solder.
(3)Firstsolderlead Aasindicatedinthefigure.
(4)Then solderleads Band C.
ÍÑÔÜÛÎ ÍÑÔÜÛÎ
ß
Þ
Ý
ß
Þ
Ý

1-12 (No.YA164)
SECTION4
ADJUSTMENT
4.1ADJUSTMENTPREPARATION
(1) Thereare2ways ofadjusting thisTV:Oneiswiththe
REMOTECONTROLUNITand theotheristhe
conventionalmethod using adjustmentpartsand
components.
(2) Theadjustmentusing theREMOTECONTROLUNITis
madeon thebasisoftheinitialsetting values.The
setting valueswhichadjustthescreentotheoptimum
condition canbedifferentfromtheinitialsetting
values.
(3)Makesurethatconnection iscorrectlymade ACtoAC
powersource.
(4)Turnon the powerofthe TVand measuringinstrumentsfor
warningupforatleast30 minutesbeforestarting
adjustments.
(5)Ifthe receiveorinput signalisnot specified,usethe most
appropriatesignalforadjustment.
(6)Nevertouchthe parts(suchasvariableresistors,
transformersand condensers)notshowninthe adjustment
itemsof thisserviceadjustment.
4.2PRESETSETTING BEFOREADJUSTMENT
Unlessotherwisespecified inthe adjustmentitems,presetthe
following functionswiththe REMOTECONTROLUNIT.
4.3MEASURING INSTRUMENTAND FIXTURES
(1)DC voltmeter(ordigitalvoltmeter)
(2)Oscilloscope
(3)Signalgenerator
(Patterngenerator:PAL/ SECAM/ NTSC)
(4)Remotecontrolunit
4.4ADJUSTMENTITEMS
CHECK ITEMS
B1POWERSUPPLYcheck
HIGHVOLTAGEcheck
IFVCOcheck
FOCUS
FOCUSadjustment
DEFLECTIONCIRCUIT
V.POSITIONadjustment
V. SIZEadjustment
H.POSITIONadjustment
H.SIZEadjustment
SIDE-PINadjustment
TRAPEZIUMadjustment
UPPER/LOWERCORNERPINadjustment
PARALLEL(TILT)adjustment
BOWadjustment
V.S-SHAPE CORRECTION&LINEARITYadjustment
VIDEOCIRCUIT
WHITEBALANCEadjustment
SUBBRIGHTadjustment
SUBCONTRASTadjustment
SUBCOLOUR adjustment
SUBHUEadjustment
COLOUR DECODERVCO adjustment
VSM PRESETSETTING
VSMPRESET
PIPSETTING
PIPPOSITIONadjustment
ItemPresetvalue
PICTUREMODEBRIGHT
CONTRAST/BRIGHT/ SHARP/COLOUR / HUECENTRE
WHITEBALANCESTANDARD
DIGITALVNR AUTO
DIGIPUREAUTO
PULLDOWNAUTO
BASS /TREBLE/ BALANCECENTRE
CINEMASURROUNDOFF
ZOOMREGULAR
PICTURETILTCENTRE

(No.YA164)1-13
4.5ADJUSTMENTLOCATION
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ÖèðëÖèðì Öèðí Öèðï

1-14 (No.YA164)
4.6BASICOPERATIONOFSERVICEMODE
4.6.1TOOLOFSERVICEMODEOPERATION
Operatethe SERVICEMODEwiththe REMOTECONTROLUNIT.
4.6.2SERVICEMODEITEMS
WiththeSERVICEMODE, variousadjustmentscanbemade,and theyarebroadlyclassifiedinthefollowing itemsof settings.
4.6.3BASICOPERATIONINSERVICEMODE
4.6.3.1HOWTOENTERTHESERVICEMODE
(1)Pressthe [DISPLAY]keyand the[PICTUREMODE]key
simultaneously,then enterthe SERVICEMODE.
(2)Whenthe mainmenu isdisplayed,pressanykeyof the [0]
to[9]keytoenterthe correspondingsub menu mode.
Fig.1
Fig.2
4.6.3.2SETTINGMETHOD
1.IF
[1.VCO] :It mustnotadjustwithoutsignal
(1)[1]key
Select1.IF.
(2)[1]key
Select1.VCO(CW).
Checkthe arrowpositionbetweenthe ABOVE REF.and
BELOWREF.
(3)[DISPLAY]key
ReturntotheSERVICEMODEmainmanu screen.
2.V/C,4.DEF
(1)[2],[4]key
Selectone from2. V/C, 4.DEF.
(2)[MENU / ]key
Selectsetting items.
(3)[MENU / ]key
Setthe setting valuesofthesetting items.
5.VSM PRESET
(1)[5]key
Select5.VSMPRESET.
(2)[OK]key
Selectsetting items.
(3)[MENU / ]key
Setthe setting valuesofthesetting items.
4.6.3.3MEMORIZETHEADJUSTMENTDATA
When adjustmentiscompleted,press the [OK] keytomemorize
the adjustmentvalue.Ifnottodoit,adjustmentdataisnot
memorizedtothe memoryIC.And ifexitthe adjustmentmode
beforememorizethe data,the adjustmentvalue whichyou
change iscanceled.
4.6.3.4RELEASE OFSERVICEMODE
Aftercompletingthe setting,returntothe SERVICEMODE,then
againpress the[DISPLAY]key.
1.IFThismodeadjuststhe setting valuesof theIFcircuit.
2.V/CThismodeadjuststhe setting valuesof theVIDEOcircuit.
3.AUDIOThismodeadjuststhe settingvaluesof the multiplicityAUDIO circuit.
4.DEFThismodeadjuststhe settingvaluesofthe DEFLECTIONcircuitforeachaspectmodegivenbelow.
5.VSMPRESETThismodeadjuststhe initialsetting valuesof BRIGHT,STANDARD and SOFT. (VSM:Video StatusMemory)
6.STATUSItisno requirementtoadjustment.[Donotadjust]
7.PIPThismodeadjuststhe setting valuesof thePIPcircuit. [HV-29JH74/G only]
8.SURROUNDThismodeadjuststhe setting valuesof theSURROUND circuit.
9.SHIPPINGThismodeissetatshipping setting. [Donoadjust]
0.BUSFREEItisnot requirementtoadjustment. [Dono adjust]
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(No.YA164)1-15
4.6.4SERVICEMODEFLOWCHART
Fig.3
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1-16 (No.YA164)
4.7INITIALSETTINGVALUEOFSERVICEMODE
(1)Adjustmentofthe SERVICEMODEismade on the basisofthe initialsetting values:however,the newsetting valueswhichset
the screen initsoptimumconditionmaydifferfromthe initialsetting value.
(2)Donotchange theinitialsetting valuesofthesettingitemsnotlisted in"ADJUSTMENTPROCEDURE".
(3)" ---" isimpossibletoadjustment.
[2.V/C] *isvariablevaluesforadjustment.
Setting item Variable
range
Setting value
RF/CompositeVideo/ S-VideoComponentvideoProgressive
PALSECAM NTSC3.58NTSC4.43 50Hz-i60Hz-i50Hz-p60Hz-p
1.RGBBLK---------------------------
2.CUTOFF R0to255150*150*150*150*5500
3.CUTOFF G0to255150*150*150*150*-8-800
4.CUTOFF B0to255150 150 150 1500000
5.WDR R0to255150*150*150*150*0000
6.WDR G0to255150*150*150*150*0000
7.WDR B0to255150 150 150 1500000
8.BRIGHTRF-128 to127-25*-25*-25*-25*------------
VIDEO-128to127+6+6 +6 +6 +2 +2 -4-4
9.CONTRASTRF0to6350*50*50*50*------------
VIDEO0to63+15 +15+15 +15 ------------
10. COLOURRF0to6336*55*25*5------------
VIDEO0to63-7-3-30-14 -5-10+5
11. HUERF-64 to63------40------------
VIDEO-64 to63------00------------
12. SHARPRF-15 to15-3-3-3-3------------
VIDEO-15 to1500000000
13. SCADJ0to6318*18*18*18*------------
14. TOPBLK0to25535 35 4646 35 46 51 46
15. BTMBLK-127 to511-15-15-37-37 -15 -37 -50 -37
16. YUVBRIGHT-64to63-------------4-4-4-4
17. YUVCONT0to63------------55555555
18. YUVCOLU0to63------------57 60 0-10
19. YUVCOLV0to63------------60 5500
20. YUVYDEL0to127------------50 50 30 35
21. YUVUVDEL0to127------------4949 30 35
22. TCDELMRF0to1272000------------
VIDEO0to1270000------------
S-VIDEO 0to1271011------------
Setting item Variable
range
Setting value
Compress(16:9)
RF/CompositeVideo/S-VideoComponentvideoProgressive
PALSECAM NTSC3.58NTSC4.43 50Hz-i60Hz-i50Hz-p60Hz-p
8.BRIGHTRF-128 to12700000000
VIDEO-128to12700000000
9.CONTRASTRF0to63-7-7-7-7------------
VIDEO0to63-7-7-7-7------------
10. COLOURRF0to630000------------
VIDEO0to6300000000

(No.YA164)1-17
[3.AUDIO]
[4.DEFLECTION]
[5.VSMPRESET]
Setting item Variable
range Setting value
1.ERR LIMIT 0000 to00FF 0010
2.A2IDTHR 0000 to00FF 0019
3.SYSTEM --- ---
4.SUBBASS -003to0003 0001
5.SUBTREBLE -003to0003 0001
Setting item Variable
range
Setting value
REGULARZOOM16 :9
100Hz-i 60Hz-p 120Hz-i 50Hz-p 100Hz-i 60Hz-p 120Hz-i 50Hz-p 100Hz-i 60Hz-p 120Hz-i 50Hz-p
1.V-SHIFT-32 to+311-23-200000000
2.V-SIZE-64 to+63-7-1-100000-2700-9
3.H-CENT-128to+127-16-10-3-20000000
4.H-SIZE-128to+1278-20-200000000
5.TRAPEZ-63 to+64-40000000200-2
6.EW-PIN-128to+127-1800000000005
7.COR-UP-64 to+6420000000201-8
8.COR-LO-64 to+64300000002000
9.COR-UP-S-64 to+64100000002002
10.COR-LO-S-64 to+64100000002000
11.ANGLE-128to+127200000000000
12.BOW-128to+127100000000000
13.V-S.CR-64 to+631800000000000
14.V-LIN-64 to+63-200-200000000
Setting item Variable
range
Setting value
BRIGHTSOFTSTANDARDCOOLWARMNORMAL
1.CONT-16to1616-20---------
2.BRIGHT-16to16-2-20---------
3.SHARP-16to160-100---------
4.COLOUR-16to160-20---------
5.TINT-16to16000---------
6.WDR R-16to16----------12220
7.WDR G-16to16----------1120
8.WDR B-16to16---------000

1-18 (No.YA164)
[7.PIP][HV-29JH74/G]
[8.SURROND]
Setting item Variable
range
Initialsetting value
RF/CompositeVideo/ S-VideoComponentvideoProgressive
PALSECAM
NTSC3.58NTSC4.43 50Hz-i60Hz-i50Hz-p60Hz-p
1.HUERF -128to0126 ------+4-1------------
VIDEO
-128to0126 -------1-1------------
2.SCADJ 0000 to0063 1717171717171717
Setting item
(Position display)
Variable
range
Initialsetting value
PAL/SECAM/ Component50Hz-i NTSC3.58 /NTSC4.43 /
Component50Hz-p/ 60Hz-i/ 60Hz-p
PIPpositionPIPposition
UpperleftLowerrightUpperleftLowerright
3.PIPHORPOS 0000 to2047 222585217585
4.PIPVERPOS
0000 to1023 4719832159
Setting item Variable
range
Initialsetting value
Regular
RF/CompositeVideo/S-VideoComponentvideoProgressive
PALSECAM NTSC3.58NTSC4.43 50Hz-i60Hz-i60Hz-p60Hz-p
5.YCDELSRF-016to0015-1-1-1-1------------
VIDEO-016to0015-1-1-1-1------------
S-VIDEO-016 to0015-1-1-1-1------------
Setting item Variable
range
Initialsetting value
LOWHIGH
1.CH CONFIG
0000 to0001 11
2.MATRIX 0000 to0127 1616
3.REPRODUCT
0000 to0015 66
4.CENTERMODE 0000 to0015 33
5.SPATIALEFF
0000 to0127 4050
6.VIRTUALEFF 0000 to0127 3547
7.BASS EFFECT
0000 to0127 4652
8.HARM 0000 to0127 00
9.HPF
0002 to0030 88
10. LPF 0005 to0030 1815
11. AMPLIMIT
-032to0000 -10-15
12. LEVELADJ -128to0012 00
13. SWC
0005 to0040 2828
14. SWHPF 0000 to0002 22
15. VOLUME
0000 to0003 33
16. HYPEREFF 0000 to0127 6363
17. EFFECTMOD
0000 to0002 00
18. HPGAIN 0000 to0008 88

(No.YA164)1-19
4.8ADJUSTMENTPROCEDURE
4.8.1CHECK ITEM
4.8.2FOCUS
Item Measuring
instrument TestpointAdjustmentpartDescription
B1VOLTAGE DC voltmeter
Remote
controlunit
Xconnector
1-pin:TP-E
5-pin:TP-91
[POWERDEF
PWB]
[2.V/C]
1.RGBBLK
(1)Receiveaanybroadcast.
(2)Select2.V/Cfromthe SERVICEMODE.
(3)Select<1.RGBBLK>.
(4)Pressthe[[MENU / ]keytofind the cutoff
screen (Black screen).
(5)ConnectaDC voltmetertoTP-91(B1)and TP-E.
(6)Makesurethatthe voltage isDC139.9±2.0V.
HIGHVOLTAGE HVvoltmeter
Remote
controlunit
CRTanode
ChassisGND
[2.V/C]
1.RGBBLK
(1)Receiveaanybroadcast.
(2)Select2.V/Cfromthe SERVICEMODE.
(3)Select<1.RGBBLK>.
(4)Pressthe[MENU / ]keytofind thecutoff screen
(Blackscreen).
(5)ConnectaHVvoltmetertoCRTanode and chassis
GND.
(6)Makesurethatthe voltage isDC31.5kV(+1kV,-1.5kV).
NOTE:
Removetheprobebeforeremoving the earthclip.
IFVCO Remote
controlunit
[1.IF]
1.VCO
Undernormalconditions,noadjustmentisrequired.
Confirmation adjustment.
(1)Select1.IFfromtheSERVICEMODE.
(2)Select<1.VCO >
(3)Receiveaanybroadcast.
(4)Check the (Arrow)posspitionbetween the ABOVE
REF.and BELLOWREF.
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Item Measuring
instrument TestpointAdjustmentpartDescription
FOCUS Signal
generator
FOCUS1VR
FOCUS2VR
[InHVT]
(1)Receivethecrosshatchsignal.
(2)Setthe ZOOMmode toREGULAR.
(3)Whilelooking atthe screen,adjustthe FOCUSVR
tothe verticaland horizontallineswill be clearand
infine detail.
(4)Makesurethat the pictureisinfocusevenwhen the
screengetsdarkened.
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1-20 (No.YA164)
4.8.3DEFLECTIONCIRCUIT
Thereare3aspectmodes(1. REGULAR,2. ZOOM,3.16 :9)of the adjustment.
Dependingupon thekind ofsignals(Verticalfrequency 120Hz-i/ 100Hz-i/ 60Hz-p).
120Hz-iisasignalthatisoutputtoascreen whena60Hzsignalisinputtoatelevision set.Itisaninterlace-scanned pictureof120Hz.
100Hz-iisasignalthatisoutputtoascreen whena50Hzsignalisinputtoatelevision set.Itisaninterlace-scanned pictureof100Hz.
NOTE:
At firsttheadjustment in100Hzmodeshouldbe done,then thedataforthe otheraspect mode iscorrectedinthe respectivevalue
atthe sametime. And confirm the deflectionadjustmentinitialsetting value in60Hz(NTSCEXTmode)mode.Ifthe adjustmentin
100Hzeachaspectmodehasbeen doneand stored,thedataforthe sameaspectmodesin60Hziscorrected inthe respective
value. Onlythe dataforthe otheraspectmode in60Hziscorrected foritself.
Whenthe 100Hzmode hasbeenestablished,thesettingof othermodeswillbe done automatically. However,if the picturequality
hasnotbeenoptimized, adjust eachmode again, respectively.
The adjustmentusingthe remotecontrolunitismade on the basisofthe initialsettingvalues.
The setting valueswhichadjust thescreen tothe optimumcondition can be differentfromthe initialsetting values.
Toswitchaspectmodes, usethe [ZOOM]keyof the remotecontroller.
Item Measuring
instrument TestpointAdjustmentpartDescription
V.POSITION Signal
generator
Remote
controlunit
[4.DEF]
1. V-SHIFT
14. V-LIN
(1)Receiveacirclepatternsignalofverticalfrequency
50Hz(PAL).
(2)SettheZOOMmode toREGULAR.
(3)Select4.DEFfromthe SERVICEMODE.
(4)Select<1.V-SHIFT >.
(5)AdjusttobecomeA=B.
(6)Checkthe adjustmentvalue aboveinotherzoom
mode.Ifitisawrongadjustment,re-adjustinZOOM
mode and adjust by<1. V-SHIFT >,<14.V-LIN>.
(7)Pressthe [OK] keytomemorizethe setvalues.
V.SIZE Signal
generator
Remote
controlunit
[4.DEF]
2.V-SIZE
(1)ReceivethePALcrosshatchsignal.
(2)SettheZOOMmode toREGULAR.
(3)Select4.DEFfromthe SERVICEMODE.
(4)Select<2.V-SIZE>.
(5)Setthe initialsetting value of<2.V-SIZE>.
(6)Adjusttomakesurethattheverticalscreensizeof
the picturesizeis 93%.
(7)Pressthe [OK] keytomemorizethe setvalues.
(8)Inputthe NTSCVIDEO signal(60Hz)fromtheEXT
terminal,andmakesurethattheverticalscreen size
is 93%.
(9)Pressthe [OK] keytomemorizethe setvalues.
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