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Manual de TV a color Samsumg
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SERVICE Manual
COLOR TELEVISIONChassis : KSCB(N)_CB5HModel : CL21B501HLMXZS
COLOR TELEVISION CONTENTS
1. Precaution
2. Product Specification
3. Disassembly & Reassembly
4. Troubleshooting
5. Exploded View & Part List
6. Wiring Diagram
7. Schematic Diagram
Refer to the service manual in the GSPN (see the rear cover) for the more information.
CL21B501HL
This Service Manual is a property of Samsung Electronics Co.,Ltd.Any unauthorized use of Manual can be punished under applicable International and/or domestic law.
GSPN (Global Service Partner Network)
Area Web SiteNorth America service.samsungportal.comLatin America latin.samsungportal.comCIS cis.samsungportal.comEurope europe.samsungportal.comChina china.samsungportal.comAsia asia.samsungportal.comMideast & Africa mea.samsungportal.com
© Samsung Electronics Co.,Ltd. Jun. 2009 Printed in Korea AA82-05984A
Table of Contents
1. Precaution1-1 Safety Precautions ......................................................................................................................................................1-11-2 Servicing Precautions ..................................................................................................................................................1-31-3 Static Electricity Precautions .......................................................................................................................................1-41-4 Installation Precautions ...............................................................................................................................................1-5
2. Product Specification2-1 Product Specification ...................................................................................................................................................2-12-2 Specifications Analysis ................................................................................................................................................2-22-3 Accessories .................................................................................................................................................................2-3
3. Disassembly & Reassembly3-1 Overall Disassembly & Reassembly ............................................................................................................................3-1
4. Troubleshooting4-1 Troubleshooting ...........................................................................................................................................................4-14-2 Adjustment ...................................................................................................................................................................4-14
5. Exploded View & Part List5-1 CL21B501HLMXZS Exploded View ............................................................................................................................5-15-2 CL21B501HLMXZS Electrical Part List .......................................................................................................................5-3
6. Wiring Diagram6-1 Overall Wiring ..............................................................................................................................................................6-16-2 Pin Connection ............................................................................................................................................................6-2
7. Schematic Diagram7-1 Circuit Description .......................................................................................................................................................7-17-2 Schematic Diagram .....................................................................................................................................................7-5
Disassembly & Reassembly
Samsung Electronics 3-1
3. Disassembly&Reassembly3-1 OverallDisassembly&Reassembly
3-1-1 DisassemblingtheCabinetPart Name Description Description Photo
Back Cover
① Remove the 7 screws fixing the Back Cover & Terminal Board. : RH,+,-,2S,M3,L6,ZPC(WHT), SWRCH18A,-
② Tap the Back Cover 2 or 3 times and pull the cover and remove it.
Since there is a danger of injury from the remaining current and of damaging the product due to static electricity, make sure to remove the power cord and wait for a moment so that the remaining current is discharged completely before disassembling the product.
Disassembly & Reassembly
3-2 Samsung Electronics
3-1-2 DisassemblingtheCRTandChassisPart Name Description Description Photo
Chassis Holder
① Separate the Ass’y Holder chassis from the Front Cabinet.
② Pull the Holder Chassis while pushing the catch up.
If you pull it with excessive power, it may cause damage to the catch or connector.Therefore, pull it until the catch is out of the hole.
Pull the chassis while pushing theclip fixing the Front Cabinet and
the Holder Chassis.
① Separate the CRT connection, the TBC wire,and the the speaker connection.
Since there is a hinge fixing the Wire Connector and Connector Header, if the wire is pulled with excessive power, it may damage the catch or connector. Therefore, pull it only after pressing the hinge down completely.
Pull the chassis while pushing theclip fixing the Front Cabinet and
the Holder Chassis.
① Separate the D-Coil, DY-Cable and power cord from the Front Cabinet and Main Board.
② Separate the power cord, DY-Cable by pushing the fixing catch to the side and pulling the wire up.
Pull the chassis while pushing theclip fixing the Front Cabinet and
the Holder Chassis.
① Separate the CRT Ass’y from the CRT.
② Separate the TBC wire, GND cables from the CRT Ass’y sequentially.
Pull the chassis while pushing theclip fixing the Front Cabinet and
the Holder Chassis.
Disassembly & Reassembly
Samsung Electronics 3-3
Part Name Description Description PhotoChassis Holder
① Separate the cable connecting the FBT and CRT from the CRT.
Since a high voltage current resides inside the CRT, do not to touch the CRT hole with metal or your body when separating the cable.
3-1-3 DisassemblingtheCRTAss’yPart Name Description Description Photo
CRT Ass’y
① Separate the cables connecting the Main Ass’y and the CRT Ass’y.
Pull the wires whilepressing on the fixing clip.
① Separate the wires from the FBT of the Main Board and the CRT Ass’y.
② To separate thick wire, pull the wires while pressing the push-type clip at the connector.
Take care when separating the wires because pulling the wires by force may damage the socket. In addition, separate the wires on a flat and clean surface so as to prevent scratching of the material and the PCB. Pull the wires while
pressing on the fixing clip.
MEMO
3-4 Samsung Electronics
Troubleshooting
Samsung Electronics 4-1
4. Troubleshooting4-1 Troubleshooting
4-1-1 FirstChecklistforTroubleshooting
1. Power LED: Check that the LED works when the power cord is connected to a 90-264 wall outlet.
2. LED Indicators: See table 4-1-2 Basic Troubleshooting: LED Diagnosis on the Front Panel.
3. In case of a power failure or abnormal screen, check the following items. ① Check that the power cord is correctly connected to a 90-264 wall outlet. ② Check that the Master Switch has been pressed. ③ Ch eck that the transmitter is turned on. ④ Check that transmitter device selection is set to TV. ⑤ Check that the signal cable is properly connected. ⑥ Check that channel setting has been set.
Troubleshooting
4-2 Samsung Electronics
4-1-2 CheckpointsbyErrorMode
1. TroubleshootingSummaryProblem Solution
The power does not turn on. Check if the power cord is properly connected.Air broadcasting does not work. Check if the antenna is properly installed.Cable broadcasting does not work. Subscribe to a local cable broadcasting firm and get support.
Satellite broadcasting does not work Install a satellite antenna (Parabola) and connect it to the TV.
2. Menu&RemoteControlProblem Solution
The remote control does not work.
■ PresstheSelectDevicebuttontoselecttheTVorexternaldevice.■ Replacethebatteryoftheremotecontrolwithanewone.■ Insertthebatterymakingsurethepolarity(+,-)iscorrect.■ Checkiftheangleorthedistanceissufficient,orifthereisany
interference between the product and the remote control.■ Makesuretheuserhaspressedthecorrectbutton.■ ToavoiddirectsunlighttothereceivingpaneloftheTV,removeany
indoor lighting or change the location of the TV.■ CheckifthepowerswitchatthebackleftoftheTVisturnedon..
Cannot change the channel with the remote control.■ PresstheSelectDevicebuttontoselecttheTV.■ Changethechannelusingtheremotecontrolofthecableorsatellite
receiver.
Cannot select an A/V channel.Press the source button and check if the AV item is grayed out. When the AV item is grayed out, you cannot select an A/V channel. Check if the connector is properly connected.
Cannot select a menu. Check if the menu is grayed out. If a menu is grayed out, it cannot be selected.
Troubleshooting
Samsung Electronics 4-3
3. ScreenProblem Solution
The screen is black and there is no sound.■ Checkifthepowercordisproperlyconnected.■ Turnonthepower.■ SelectanAVchannelthatcorrespondstotheexternaldevice.
Only the screen is blank/it is dark or too bright. Adjust the screen brightness.Thescreenisblue/theexternalchannelisnotdisplayed.
■ Checkiftheconnectorisproperlyinstalled.■ SelectanAVchannelthatcorrespondstotheexternaldevice.
The screen overlaps (double/triple). ■ Checkiftheantennaisproperlyinstalled.■ Adjusttheposition,angleordirectionoftheantenna.
The screen is snowy or unclear. The picture quality gets worse when it is windy
■ Checkiftheantennahasbeenbentormovedbythewind.■ Checktheantennaforitslifetime.
(Normally 3 - 5 years, 1-2 years near the coast)Dotted or semi-dotted lines are displayed on the screen.
Install the antenna as far away from the road as possible.
The screen is black and white. ■ Adjustthecolordensity.■ Checkiftheconnectorisproperlyinstalled.
The colors of the screen are odd/strange. Adjust the color tones.
Unusual lines appear on the screen. Keep the antenna away from the power cord or connectors if possible.
Unusual lines appear on the screen when watching or recording to video.
Keep the video player as far away from the TV as possible.
4. SoundProblem Solution
There is no sound. ■ Increasethevolume.■ PresstheMutebutton.
The sound is very low. ■ Increasethevolume.■ SettheautovolumecontroltoON.
There is a lot of noise. Keep the antenna away from the power cord or connectors if possible.The selected language does not appear. PresstheMultiplexbuttontoselecttheTV.
Troubleshooting
4-4 Samsung Electronics
5. ChannelProblem Solution
There are no channels available.■ Checkiftheantennaisproperlyinstalled.■ PresstheAutoChannelbuttontostorechannels.■ Contactyourlocalbroadcastingservicestation.
Some channels are not available.
■ Adjusttheposition,angleordirectionoftheantenna.■ ActivatetheReceptionSensitivityBoostfeature.■ Contactyourlocalbroadcastingservicestation.■ UsethenumberkeystoselectaspecificchannelandpressStore/Clear
to memorize it.Only the UHF (14-69) channels are not available. Check if the antenna is able to receive UHF signals.
6. OthersProblem Solution
The TV makes a noise as if something is dropping inside.
ThisnoisemayoccurwhentheplasticmaterialinsidetheTVexpandsorcontracts according to the seasonal temperature or humidity. This is like the noise from a furniture/cabinet/sink unit, and there is no need for concern.
Troubleshooting
Samsung Electronics 4-5
7. BasicTroubleshooting:DiagnosisofLEDontheFrontPanel
LED
●: Light is On◑: Light is Blinking○: Light is Off
Power Description○ This happens when the TV have turned on or the power cord is disconnected.
● This happens when the power cord is connected.
○→◑→● The LED blinks, while the unit is starting up or the unit is turning off.
8. TroubleshootingbytheChecksum■ Diagnosisoftroublebythechecksumisneitherreliablenorconvenient.
You can only use the checksume of the current direct-view TV to determine whether the software is corrupted or not. The Checksum value is determined according to the version of the software loaded on the set. Therefore, you can determine whether the software has been properly downloaded, if you know the correct checksum for that version of the software.
You can check the checksum according in the following order. Factory Mode → Checksum → Enter →OutputChecksum(e.g.0xab2b)
■ ChecksumExamples T-SIXNSAM -1000.0 Checksum = XXXX
Troubleshooting
4-6 Samsung Electronics
9.FlowChartforMalfunction
Is there something onthe Screen.
Yes Does the OSD menu on thescreen work?
Yes
No
UOCTOPICReplace.Yes
Is the power cord or themaster switch out of order?
Yes
Yes
Check that the cables ard properly connected to Main
Board.
No
Connect the cableNo
Is the cable from the
MainBoardththeCRTAss’yproperly innected?
IsCRThigivoltagebeen measured?
Does the TV work?
SOUND IC
MICOM SMD IC
INPUT JACK
DY-JACK
VERTICALICMAINTRANS
SMPS-TR
OUTPUTTRQ401
BRIDGEDIODE
TUNERFBT
EWDRIVER
Troubleshooting
Samsung Electronics 4-7
4-1-3 TroubleshootingProceduresbyASS’Y
1 NOPower- Power part of the Main Board Check.
Is the power cord or the master switch out of order?
Complete
Yes
Yes
YesCheck the FUSE “FP801S” Check the “D801S” #1 Check the IC801S #1
W6753F
No Picture & No Sound
Change “FP801S” Change “D801S” Change “IC801S”
Check the others partYes Yes
No No
D809C
F801A
SMPS-TR
BRIDGEDIODE
SOUND IC
FD801S
Troubleshooting
4-8 Samsung Electronics
2. NoSound- when the power is normal
Checkthe+14Vline
Complete
YesCheck FD801S Check D809C Change IC601
No sound (1st power OK)
Check IC201 Pin#39.40Yes Yes
No
Change FD801S Change D809C
No
No
MICOM SMD IC
D809C
SOUND IC
FD801S
Troubleshooting
Samsung Electronics 4-9
3. NoPicture- when the power is normall
Checkthe+125Vline
Complete
Yes“D811” open and check
T444B+Pin#3 Open and check CHECKCRTASS`Y
No picture (1st power OK)
Check D407Yes Yes
No
Change the “D811” Checkthe“Q401”
No
No
ChecktheothersB+lineYes
Changethe“Q401”Change D407
No
No
Yes
D811MAINTRANS FBT D407 OUTPUT TRQ401
Troubleshooting
4-10 Samsung Electronics
4-1-4 TroubleshootingbyBlocks
1. Tuner Diagnosis IfthereisnosignalmeasuredeventhoughtheRFsignalreceivedbytheexternalantennaisinputtotheMainBoardTuner.
- Supplied Power: 5V, 8V, 33V- RFTroubleCheck:CheckCVBSoutput- AUDIO Trouble Check: Check SiF Signal output
B+5V B+33V IF
Troubleshooting
Samsung Electronics 4-11
2.ExternalInputDiagnosisComponent inputs and one monitor output (Video, Audio) are supported.The signal is input to UOC TOP IC through the ports.If the signal input change “and output are” to “is” not detected, check the following.- Supplied Power: UOC TOP IC(5V, 3.3V, 8V)- Input Problem Check: Check the connecting jacks.
VIDEO IN AUDIO IN VIDEO IN AUDIO IN
Troubleshooting
4-12 Samsung Electronics
3. TDA11136H/N3 Diagnosis IF+MICOM+VIDEO
Troubleshooting
Samsung Electronics 4-13
4. LA42032 Diagnosis- Supplied Power: 11V- InputProblemCheck:L/R- OutputProblemCheck:L+,L-,R+,R
Troubleshooting
4-14 Samsung Electronics
4-2 Adjustment
4-2-1 ServiceInstruction1.GeneralAdjustment:
In general, a color TV can provide ideal visual quality by adjusting the basic settings such as the vertical size, horizontal size,focus, etc.Display a black and white picture on the screen to check if the picture is clearly displayed.Iftherearesome‘spotted’pointsonthescreenwhendisplayingablackandwhitepicture,degaussthescreenusingthedegauss coil. If the spotted points remain, re-adjust the purity and the convergence.Thiscompletesthebasicperformanceexamination.
Troubleshooting
Samsung Electronics 4-15
4-2-2 HowtoAccessServiceMode
1. To enter Service Mode, press the keys on the remote control according to the following sequence. (in Stand-by status)
To Enter:
2. The initial screen of Service Mode.
3. Functions of the Keys within Service Mode.MENU Show all menus▲/▼ Move the cursor to select an item.◀/▶ Adjust the selected configuration value
4. W/B SettingNo Item Data RequiredAdjustment
1 White Balancex:275±5y:275±5Y:45±3
White Balance (Standard Data)x:265±5y:265±5Y:1.5±0.3
2 Screen VoltageToshiba Pattern
Same As KSCA ChassisG2Adjust
Info Menu POWERONMute
Option XXXXXXXXXXHotelOptionDeflectionVideoAdjust1VideoAdjust2VideoAdjust3VideoAdjust4YCDelayOthersBusStop OffCHECkSuM 0000G2AdjustRESETT-SIXPEANM-1000.0 2008/10/08
Troubleshooting
4-16 Samsung Electronics
4-2-3 FactoryData
1. Option
No Item Selection InitialData1 Video mute 100msec~1000msec/Off 600msec
2 System CL/CP/CT-N CL
3 AV Jack 1RCA/2RCA/2RCA+DVD/1SCART 1RCA
4 Sound Line Stereo / MONO MONO
5 High Deviation ON/Off On
6 Volume Curve Large/Small Large
7 Initial Lang English/Spain/Portugal/France By Country
8 LangGroup NTSC SA/Philippine NTSC SA
9 Close Caption ON/Off On
10 ExtBandPass On/Off Off
11 V-Guard On/Off On
12 AV OUT SEL CVBS2/CVBS3 CVBS2
13 DNIe Jr On/Off Off
14
2. Hotel Option
No Item Selection InitialData1 Hotel Mode On/Off Off
2 Power On Band Air/STD Air
3 Power On Channel 0~99 3
4 Power on volume 0~100 10
5 MaxVolume 0~100 100
6 Pannel Button Lock On/Off Off
7 Power On Source Off/TV/AV1/AV2/DVD Off
♦Theunderlinedareitemsappliedduringtheserviceadjustment.Noneoftheothersshouldbeadjusted.
Troubleshooting
Samsung Electronics 4-17
Troubleshooting
4-18 Samsung Electronics
3. Deflection
No Item Data Initial value Remarks1 V Amp Adjust 30
2 V Shift Adjust 39
3 H EW Adjust 39
4 H Shift Adjust 33
5 V Linearity FIX 25
6 V S-Correction FIX 29
7 V Slope FIX 45
8 V Scroll FIX 22
9 V Zoom FIX 17 AV Horizontal Line/V-AMP Margin
10 H Parabola Adjust 35
11 Upper Corner Adjust 45
12 Lower Corner Adjust 45
13 H Trapezium Adjust 30
14 Bow Adjust 28
15 Angle Adjust 25
4. Video Adjust 1
No Item Data Initial value Remarks1 RCutoff Adjust 322 GCutoff FIX 323 B Cutoff Adjust 324 RDrive Adjust 325 GDrive FIX 326 B Drive Adjust 327 Sub Bright Adjust 108 Sub Contrast Adjust 159 Bluescreen Contrast Adjust 15
10 G2AdjustBright FIX 45 9TR11 AKB Option FIX 012 Cathode Drive Level FIX 10 W/B adjust Margin
Troubleshooting
Samsung Electronics 4-19
5. Video Adjust 2
No Item Data Initial value Remarks1 PAL/SECAM Sub Color FIX 102 NTSC Sub Color FIX 143 NTSC Sub Tint FIX 174 YUVSubTintRF FIX 325 YUV Sub Tint AV FIX 356 YUVSubTintRGB FIX 327 Soft Clipping Level FIX 0 9TR8 Peak White Limit FIX 6 9TR9 SECAM B-Y Offset FIX 1
10 Peaking CF0 & Delay Mode FIX 011 Sub Sharpness FIX 2312 VideoDependentCoringRF FIX 3 Video S/N13 Video Dependent Coring AV FIX 3
6. Video Adjust 3
No Item Data Initial value Remarks1 RFAGC Adjust 30 AGCVoltage2 IFAGCSpeed FIX 1 3 IF Demodulator FIX 38 4 Fast Filter IF PLL FIX 0 5 RFFOA/FOB FIX 0 VCRRFoutput6 AV FOA/FOB FIX 0 7 RFPA/NTIdentSensitivit FIX 2 8 AV PA/NT Ident Sensitivit FIX 2
Troubleshooting
4-20 Samsung Electronics
7. Video Adjust 4
No Item Data Initial value Remarks
1 Bypass of Chroma Base Band FIX 0 0: active 1:bypassed
2 FixedBeamCurrent FIX 0 3 FixedBeamCurrent1 FIX 0
4 Forced Colour On FIX 0 0: off 1: on
5 Beam Current Limiting FIX 0 6 Chroma Trap Mode FIX 0
7 EHT Tracking Mode FIX 1 0: only on vertical 1: on vertical and EW
8 ComponentRcutoff FIX 32 Scart W/B9 ComponentGcutoff FIX 32 Scart W/B
10 ComponentB cutoff FIX 32 Scart W/B11 RGBBlankingMode FIX 1 Secam Blanking12 Wide Blanking Front FIX 0
13 WideBlankingRear FIX 6
8. YC Delay
No Item Data Initial value Remarks1 PAL Delay FIX 122 SECAM Delay FIX 123 NTSC Delay FIX 124 PAL AV Delay FIX 125 SECAM AV Delay FIX 126 NTSC AV Delay FIX 12
Troubleshooting
Samsung Electronics 4-21
9. Others
No Item Data Initial value Remarks
1 Service Blanking FIX 0 0: off 1: on
2 Black Area FIX 1
3 Black Stretch FIX 2 0: not active
1:active-15IRE2:active-30IRE
4 Blue Stretch FIX 0
5 NoRedReduction FIX 1
6 OSD Brightness FIX 15
7 PWL Active FIX 1 0: not active 1: active
8 Bypass Peaking Delay FIX 0 0: normai operation 1:peaking delay bypassed
9 RatioPre&AfterShoot FIX 2
10 Ratioposi&NegaPeaks FIX 2
11 Dynamic Skin FIX 0 0 : 123 degree 1: 117 degree
12 Gamma&WhiteStretch FIX 1 0~3
13 DCTransferRatio FIX 1 0: No black level shift 1: black level shift
14 NTSCMatrix FIX 0 0:Japanesematrix 1:USAmatrix
15 DCXO Cap FIX 2 0~3
Troubleshooting
4-22 Samsung Electronics
4-2-4 ServiceAdjustment
1. AdjustingthePictureSize Since the KSBA chassis includes a deflection adjustment of the Factory Data, adjustments must be performed according to the following procedures when replacing the Main Board.
1 Display the Lion pattern. 2. Press “PowerOff→Mute→1→ 8→ 2→ PowerOn” using the remote control and enter Factory Mode.
3. Enter Deflection Mode.4. Adjust the V-AMP, V-SHIFT, H-EW and H-SHIFT items so that the width becomes 92 and the height becomes 92.
Troubleshooting
Samsung Electronics 4-23
2. AdjustingthePictureStraightLines
1. Display the Cross Hatch pattern.
2 Adjust settings other than V-AMP, V-SHIFT, H-EW and H-SHIFT so that straight lines are displayed without curves.
7. When the adjustments are complete, display the Lion pattern and check that the picture size has not been changed. If there is no change, finish the adjustments.
3. Adjust BOW and the Angle settings so that the center line becomes a straight line.
5. Adjust the Upper Corner and the Low Corner settings so thatthe end of the lines become straight.
4. Adjust the H-Parabola and H-Trapezium settings so thatthe left and right lines become straight.
6. Adjust the V-Linearity and V-SC settings so that the intervals of the horizontal lines become uniform.
Troubleshooting
4-24 Samsung Electronics
4-2-5 Replacements&CalibrationNo Item Data Remark1 Main B/D Adjust Tilt, Adjust Screen, Adjust Focus, Adjust Factory Data, Adjust W/B Toshiba Mode2 Power B/D - Toshiba Mode3 CRTAssy - -
4 FBT Adjust Screen, Adjust Focus Toshiba Mode5 SUB - -
■ Adjusting the Focus
YoumustadjustthesettingsinthefollowingorderfortheKSCBchassiswhenreplacingtheCRTPCB,FBT,orCRT.
1. Display the Cross Hatch pattern.2. Set the Screen Adjustment to “OK”.3. TurntheFocusVRsothatthehorizontalandverticallinesareclearlydisplayed.4.ChecktheFocusfortheentirescreenandadjusttheFocusVRifnecessary.
■ Adjusting the Screen Voltage
1. Select: 2. Initialize all settings to the values appropriate to the corresponding model make sure the video adjust 1 is the factory date,just as
the following picture.
Focus VR
MuTE 1 POWERON8 2PowerOFF
Troubleshooting
Samsung Electronics 4-25
3. Select:Mute,andgetintotheG2adjustToshibapattern.
4. FirstcheckIBRMin“G2Adjust”ofFactoryandadjustScreenVRuntil“ScreenAdjust:OK” like the picture.
■ Adjusting the White Balance
1. Select: 2. Initialize all settings to the values appropriate to the corresponding model.3. Display the Toshiba pattern and adjust the White Balance using CA100 with the coordinates of the corresponding model.
Screen VR
[CA100]
Info Menu POWERONMutePowerOFF
Troubleshooting
4-26 Samsung Electronics
4. Enter Video Adjust1 of Service Mode. Adjust Low/Light.- Adjust Sub Bright to set Y.- Adjust B Cutoff to set y.- AdjustRCutofftosetx.
5. Enter Video Adjust1 of Service Mode. Adjust High/Light.- Adjust Sub Contrast to set Y.- Adjust B Drive to set y.- AdjustRDrivetosetx.
6. Check Low/Light and readjust it if its value has been changed.7. If you have readjusted Low/Light, readjust High/Light until the two values are identical to the coordinates of the corresponding
model.
※ White Balance Standard Data No Item Data RequiredAdjustment
1 White Balance x:275±5y:275±5Y:45±3 White Balance (Standard Data)x:265±5y:265±5Y:1.5±0.3
■ Check List for the Screen Voltage and White Balance Adjustment
1. The Screen Voltage and White Balance are connected to each other, and both of them have to be configured to the correct values.
2. Adjust the White Balance after the Screen Voltage was adjusted, and check if the Screen Voltage is normal after adjusting the White Balance.
3. If the White Balance is readjusted, check the Screen Voltage again.4. When the adjustment is finished, check the following checklist.
- If there is a spot on the screen when turning the TV set off/on, adjust the Screen Voltage again.- If there is a ghost line on the screen, adjust the Screen Voltage again.
MEMO
Samsung Electronics 4-27
Schematic Diagram
Samsung Electronics 7-1
7. SchematicDiagram7-1 CircuitDescription
7-1-1OverallBlockDescription
KTA1505Y
IC801SW6753F
A+14V
A+6.5V
A+12V
IC601Sound AMP
IC301Vertical Drive
AMP
T444SFly back Transformer
78R05 R3
VDNVDP
LSL-OUTLSR-OUT
SIDE-A/V (Option)
JACKAV IN
Schematic Diagram
7-2 Samsung Electronics
7-1-2 PowerSignal
Schematic Diagram
Samsung Electronics 7-3
7-1-3 PartialBlockDiagram1. Main Block Description
KTA1505Y
IC801SW6753F
A+14V
A+6.5V
A+12V
IC601Sound AMP
IC301Vertical Drive
AMP
T444SFly back Transformer
78R05 R3
VDNVDP
LSL-OUTLSR-OUT
SIDE-A/V (Option)
JACKAV IN
MEMO
7-4 Samsung Electronics
Schematic Diagram
Samsung Electronics 7-5
7-2 SchematicDiagram7-2-1 MainBoardThis Document can not be used without Samsung’s authorization.
PowerVideoAudio
Schematic Diagram
7-6 Samsung Electronics
7-2-2 SoundThis Document can not be used without Samsung’s authorization.
PowerVideoAudio
Schematic Diagram
Samsung Electronics 7-7
7-2-3 PowerThis Document can not be used without Samsung’s authorization.
PowerVideoAudio
Schematic Diagram
7-8 Samsung Electronics
7-2-4 CRTThis Document can not be used without Samsung’s authorization.
PowerVideoAudio