Konka KDL42MS19U User manual

Service manual
Model KDL42MS19U
※1、Adjustment
※2、Assemblyinstruction
※3、Circuitdiagram
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1.Preface
1.1Applicablearea
ThistestmanualisapplicableforKL32GT611LCD TV.
1.2调试注意事项及要求
1.2.1 请按下列调试步骤和指定的测试仪器进行调试，否则将不能调好电视机，为了保证满意
的测试结果，在调试中必须保证所指定的偏压值。
1.2.2调试之前请务必戴好静电手套。
1.2Testnotes
1.2.1Pleasefollowthepointed teststepsandchoosethepropertestequipmentto
conductadjustment,otherwisegood effectofTVsetcouldnotbe obtained.Pointed
biasvoltage valueshouldbeensured during testtogetsatisfiedtestresult.
1.2.2Besure thatyouhavethe staticelectricity protectivegloveinbefore test.
3Testequipment
1)Computer1set
2)Multi-meter(VICTORVC9801) 1set
3)VideoSignalGenerator(ChromaModel2227/2327/VG859)1set
4)ColorAnalyzer(ChromaModel7120 )1set
5) TVVideo SignalGenerator (FLUKEPM54200) 1set
6) Remotecontrollerwithfactorykeys1set
7）TV,VGA, HDMI ,Component,AVSignalline etc1set
8）ALL－11C21set
9）BeeProg1set
4.Testitemand method
ITEM
Program
Menu.
EquipmentsRequirementsProcedureandSPEC
1
M/B
Voltage
confirmation
DigitalMultimeter
JSK3178-006
MinBoard
1.
ConnectPowertocheck whether
PowerLEDdisplaysthegreenl
ightor
not.
2.
Pleaserefertoappendix4.1/4.2/4.3
ifthereisabnormalphenomenon.
2
UpdateNVRAM
PC
BeeProg
Debug Tool
Pleaserefertoappendix
5ifthereis
abnormalphenomenon.
3 UpdateHDMI
EDID Pleaserefertoappendix
5ifthereis
abnormalphenomenon.
4
Update
HDCP
KEY
PC,ALL-11Debug
Tool
Pleaserefertoappendix5
ifthereis
abnormalphenomenon.
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5
Enterfactory
menu Enterfactorymenu :Press
MENU
buttononthe remotecontrol,then
Press digitalbutton 2008”
in
order
6
Restorethe
factorysetting
to
default value
1.Enterfactorymenu,SelectReset
TV ，Waitabout5-8seconds,
resetwill ok,then theTVwill
restart.
7
AutocolorHDTVVideo
SignalGenerator
VG859
1.Enterfactorymenu, Select“ADC
Adjust”,thenSelect “Component”
underthe “INPUTSOURCE”state,
then select “AUTOADC”,press
RIGHTarrowkeytoadjust.TV
displays “OK”meansadjustmentis
successful,ifitdisplays“FAIL”means
itneedadjustagain.
8
ColorTemp.
adjustand
white-balance
calibrate
HDTVVideo
SignalGenerator
VG859
ColorSignal
Generator
Ifyoudotheautocolorafter
calibrating the whitebalance,You
needcheck the whitebalanceagain.
a
AV:ColorTemp
.
and white-
balancecalibrate
adjust
TVSignal
Generator
ColorSignal
Generator
Inpujt
graystep
signal1.Enterfactorymenu,Select “W/B
Adjust”,select “TEMPERATURE”
to“Natural”.
2.Adjustment R/G/BGaintoget
whitecalibration;
AdjustmentR/G/BOffsettoget
black
c
alibration
,
b
YPbPr
（Component）:
ColorTempand
white-balance
calibrateadjust
HDTV
Video
SignalGenerator
VG859
ColorSignal
Generator
Input
graystep
signal 1.Enterfactorymenu,Select
“COLORTEMP”,select
“COLORTEMPNORMAL”.
2.Adjustment R/G/BGaintoget
whitecalibration;
Adjustment R/G/BOffsettoget
black calibration,
c
VGAColorTemp
and
white-balance
calibrateadjust
HDTV
Video
SignalGenerator
VG859;
ColorSignal
Generator
Input
graystep
signal 1.Enterfactorymenu,Select
“COLORTEMP”,select
“COLORTEMPNORMAL”.
2.Adjustment R/G/BGaintoget
whitecalibration;
Adjustment R/G/BOffsettoget
black calibration,
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9.TVmode check FactoryTVSignal
orTVSignal
Generator
1.EnterUsermenu,Check whether
thepicturesnormalornot,
bluescreen
lorsnowflakepointscomingforth，it
wouldenterstandbystatein
15
minutesif nosignal
2.CheckAutoTuning/
Manual
tuning、etcrightornot.
10 VIDEOcheck DVD
Videocable
PlayDVD
SetDVD
to
interlaced output 1.Screenisclearand fluent,
Audio
checksiftheoutput isnormal。
11Y,Pb,Pr
（Component）
SDTV:
576P/480P
HDTV:
HDTVReceiver
ATSCHDTV
Tuner
Component cable
PlayDVD
SDTV/HDTV
(Y,Pr,Pb)
1.Screenisclearand fluent,
Audio
checksiftheoutput isnormal。
12 VGAINPUT
PC
VGACable
TVBOX
D-SUBcable
PCMode
Please
refertoappendix
6.1
1.ApieceMode
Screenis clearand
fluent。
2.PlayTVBOX
Screen isclearand
fluent,Audiochecks
iftheoutputis
normal
。
13 HDMI check
SAMSUNG
DVD-HD948
GdbbkDVD（or
HDMIof DVD）
HDMIcable
HDMIMode
Pleasereferto
appendix6.2
1.Select “SOURCE”Eand Select
“HDMI”
2.ApieceMode: Screen isclearand
fluent,Audiochecksifthe outputis
normal。
14 HDCPcheck DVD（
orHDMIof
DVD）
HDMIcable
VGA859
1.Select “SOURCE”Eand
Select
“HDMI”
2.checkSignalGenerator
output
HDMI/HDCPSignal,checks
ifthe
output is”PASS”
3.ifnot “PASS”
,Pleasecheck the
HDCPkey.
15
EarphoneOutput
function
check
Earphone、DVD TVorplayDVD IN
1.plugintoEarphone ，speaker
aphonia，Earphone Audioisnormal，
Press VOL+-
KeySetthe sound
volume..，Audiochecks
iftheoutput
is normal
16. remotecontrol
functioncheck
PC、DVDPattern
Generator
TVSignal
Generator
VCDorplayDVD
IN 1.Checkiftheapiecemodefunction
normal。
17
About BurnMode
InTVSource, Don’tplugtheantenna.
S
oitwillbenosignal,ThenGoto
MainMenu ‘
sFunction Pageandset
the Bluescreen
off,thenGotoMain
Menu
’
sSetupPageand setthe
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4.1Accessories
4.1.1The inputandoutputcharacteristictest ofpower
Number ItemTest PointStandard
1The portofACinputXS901 Noshort circuit
2The resistanceof12V output VDW961 Noshort circuit
3The resistanceof5Vstboutput L802 Noshort circuit
4The resistanceof3.3STB output N810 Noshort circuit
5The resistanceof5VA output V812 Noshort circuit
6The resistanceof1.25V output L801 Noshort circuit
7The resistanceof2.5Voutput N812 Noshort circuit
8The resistanceof3.3VAoutput N811 Noshort circuit
9The resistanceof3.3Vtuner output N810 Noshort circuit
10 The resistanceofPanelVcc output V808 Noshort circuit
11 The resistanceofLEDVCC output VDW951 Noshort circuit
4.1.2 HI-POTconfirmation
Short-circuitpowerinputL/N-terminal,plus3000VACbetweentheL/N-side and power
secondaryside toholdfor sixseconds.The leakagecurrentbetweentheprimaryand
secondaryside mustbe ≤10 mA..
4.2SignalBoardpart
4.2.1Signalboardpower part
SignalBoardpowerdistribution
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4.2.2Verifythe stateofTVset
PowerOn,Thenverifythe LED ，lightstateisPOWERONstate.
4.2.3Checking SupplyPower.
Numb
er ItemTestPointStandard
StandbyPower on
112VVDW9616.5V12V
25Vstb L802 5V5V
33.3stb N810 3.3V3.3V
45VA V812 0V5V
51.25V L801 0V1.25V
62.5V N812 02.5V
73.3VA N811 03.3V
83.3Vtuner N180 03.3V
9PanelVcc V808 012V
4.2.4Digitalsignalpart start order
Turnonthe
power N501RESET and
IOportinitialize
S
upply
power forLCD
Turnonback
lightlamp Successfulstart
andpicturedisplay
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4.2.5Afterturningonthe power,ifblankscreen appears(nobacklightlamp),justpress
POWERbuttonseveraltimes,
4.2.6ifblankscreenisstillthere，youmustcheckthatthe voltageofeverypowersupplyis
rightornot.
4.2.7CheckifthecrystaloscillatorZ501 (27MHz)oscillateor not,and oscillatefrequency
isrightor not.
4.2.8Backlightcontrolsignal(BKLT_EN) of R704hashigh level(above3V)
ornot, ifnot, checkwhether faultsolderedorshortcircuit happened。
4.5Whitecalibration adjustment
4.5.1Receivegraystepsignal,adjustingpicture modetostandard.
4.5.2Adjustwhitebalance. Enterfactorymenu,selectW/BAdjust Menu,
AdjustGainRed0-255
GainGreen 0-255
GainBlue 0-255
OffsetRed0-255
OffsetGreen 0-255
OffsetBlue 0-255
4.5.3Adjustingcolortempofeverystep to9300（u`=0.189,v`=0.447;误差+/-0.020）。
5.1UsePG4UWToProgramTheFirmware
1)Firstly,Download thePG4UWwhichversion isV2.33d.
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2)Run the programPG4UW,click “Found Programmer”and setitasbelowphoto.
3)click”Device àSelectDevice ”,and select “S25FL032P[SO8]”,,then click ok.
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4)Click
“
File
à
Open
”
,and Selectthe MERGE.bin(Thebellowphotoisalittledifferent,please
open theMERGE.bin)
5)Thenselect “Burn ”page, and click “Yes”
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If it’sprogramcorrect,it willshowaphotoasbellow.
5.2Burn The HDMIEDID.
For thereisnoProgramDeviceonhand,pleasereferto5.3section.Theoperation steps
issamewithburn HDCP KEY,onlythefiletobeprogrammedisdifferent.
5.3BurnTheHDCP KEY
MT8227platformHDCPKEYisburning inthe storageofmainprogramFlash(a,N504),
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