kscb six cb1c n 4 troub

7/29/2019 Kscb Six Cb1c n 4 Troub

1/27

Troubleshooting

Samsung Electronics 4-1

4. Trobleshooting

4-1 Trobleshooting

4-1-1 FirstCheclistforTrobleshooting

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.Check that the power cord is correctly connected to a 90-264 wall outlet.

Check that the Master Switch has been pressed.

Ch eck that the transmitter is turned on.

Check that transmitter device selection is set to TV.

Check that the signal cable is properly connected.

Check that channel setting has been set.


2/27

Troubleshooting

4-2 Samsung Electronics

4-1-2 ChecpointsbyErrorMode

1. TrobleshootingSmmary

Problem 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. Men&RemoteControl

Problem Solution

The remote control does not work.

PresstheSelectDevicebuttontoselecttheTVorexternaldevice.

Replacethebatteryoftheremotecontrolwithanewone.

Insertthebatterymakingsurethepolarity(+,-)iscorrect.

Checkiftheangleorthedistanceissufficient,orifthereisanyinterference 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.


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Troubleshooting


3.Screen

Problem 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/theexternalchannelisnot

displayed.

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.Sond

Problem 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.


4/27

Troubleshooting


5.Channel

Problem 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.Others

Problem Solution

The TV makes a noise as if something is droppinginside.

ThisnoisemayoccurwhentheplasticmaterialinsidetheTVexpandsor

contracts 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.


5/27

Troubleshooting


7. BasicTrobleshooting: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. TrobleshootingbytheChecsm 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 ModeChecksumEnterOutputChecksum(e.g.0xab2b)

ChecksumExamples

T-SIXNSAM -1000.0 Checksum = XXXX


6/27

Troubleshooting


9.FlowChartforMalfnction

Is there something onthe Screen.

Yes Does the OSD menu on the

screen work?

Yes

No

UOCTOPICReplace.

Yes

Is the power cord or the

master switch out of order?

Yes

Yes

Check that the cables ard

properly connected to Main

Board.

No

Connect the cableNo

Is

the cable from theMainBoardththeCRTAssy

properly innected?

IsCRThigivoltagebeen measured?

Does the TV work?

SOUND IC

MICOM SMD IC

INPUT JACK

DY-JACK

VERTICALICMAINTRANS

SMPS-TR

OUTPUTTRQ401

BRIDGEDIODE

TUNER

FBT

EWDRIVER


7/27

Troubleshooting


4-1-3 TrobleshootingProcedresbyASSY

1 NOPower- Power part of the Main Board Check.

Is the power cord or the masterswitch 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


8/27

Troubleshooting


2.NoSond- when the power is normal

Checkthe+14Vline

Complete

Yes

Check 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


9/27

Troubleshooting


3. NoPictre- when the power is normall

Checkthe+125Vline

Complete

YesD811

open and check

T444B+Pin#3

Open and check CHECKCRTASS`Y

No picture (1st power OK)

Check D407Yes Yes

No

Change the D811 ChecktheQ401

No

No

ChecktheothersB+line

Yes

ChangetheQ401Change D407

No

No

Yes

D811MAINTRANS FBT D407 OUTPUT

TRQ401


10/27

Troubleshooting


4-1-4 TrobleshootingbyBlocs

1. Tuner Diagnosis

IfthereisnosignalmeasuredeventhoughtheRFsignalreceivedbytheexternalantennaisinputtotheMainBoardTuner.

- Supplied Power: 5V, 8V, 33V

- RFTroubleCheck:CheckCVBSoutput

- AUDIO Trouble Check: Check SiF Signal output

B+5V B+33V IF


11/27

Troubleshooting


2.ExternalInputDiagnosis

Component 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


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Troubleshooting


3. TDA11136H/N3 Diagnosis

IF+MICOM+VIDEO


13/27

Troubleshooting


4. LA42032 Diagnosis

- Supplied Power: 11V

- InputProblemCheck:L/R

- OutputProblemCheck:L+,L-,R+,R


14/27

Troubleshooting


4-2 Adjstment

4-2-1 ServiceInstrction1.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.

Iftherearesomespottedpointsonthescreenwhendisplayingablackandwhitepicture,degaussthescreenusingthedegauss coil. If the spotted points remain, re-adjust the purity and the convergence.

Thiscompletesthebasicperformanceexamination.


15/27

Troubleshooting


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 Setting

No Item Data RequiredAdjustment

1 White Balancex:2755y:2755Y:453

White Balance (Standard Data)x:2655y:2655Y:1.50.3

2 Screen VoltageToshiba Pattern

Same As KSCA ChassisG2Adjust

Info Men POWERONMte

Option XXXXXXXXXX

HotelOption

Deflection

VideoAdjst1

VideoAdjst2

VideoAdjst3

VideoAdjst4

YCDelay

Others

BsStop Off

CHECkSuM 0000

G2Adjst

RESETT-SIXPEANM-1000.0 2008/10/08


16/27

Troubleshooting


4-2-3 FactoryData

1. Option

No Item Selection InitialData

1 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

11V-Guard On/Off On

12 AV OUT SEL CVBS2/CVBS3 CVBS2

13 DNIe Jr On/Off Off

14

2. Hotel Option

No Item Selection InitialData

1 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

Thenderlinedareitemsapplieddringtheserviceadjstment.Noneoftheotherssholdbeadjsted.


17/27

Troubleshooting



18/27

Troubleshooting


3. Deflection

No Item Data Initial value Remarks

1 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 17AV Horizontal Line/

V-AMP Margin

10 H Parabola Adjust 35

11 Upper Corner Adjust 45

12 Lower Corner Adjust 45

13 H Trapezium Adjust 3014 Bow Adjust 28

15 Angle Adjust 25

4. Video Adjust 1


1 RCutoff Adjust 32

2 GCutoff FIX 32

3 B Cutoff Adjust 324 RDrive Adjust 32

5 GDrive FIX 32

6 B Drive Adjust 32

7 Sub Bright Adjust 10

8 Sub Contrast Adjust 15

9 Bluescreen Contrast Adjust 15

10 G2AdjustBright FIX 45 9TR

11 AKB Option FIX 0

12 Cathode Drive Level FIX 10 W/B adjust Margin


19/27

Troubleshooting


5. Video Adjust 2


1 PAL/SECAM Sub Color FIX 10

2 NTSC Sub Color FIX 14

3 NTSC Sub Tint FIX 17

4 YUVSubTintRF FIX 325 YUV Sub Tint AV FIX 35

6 YUVSubTintRGB FIX 32

7 Soft Clipping Level FIX 0 9TR

8 Peak White Limit FIX 6 9TR

9 SECAM B-Y Offset FIX 1

10 Peaking CF0 & Delay Mode FIX 0

11 Sub Sharpness FIX 23

12 VideoDependentCoringRF FIX 3 Video S/N

13 Video Dependent Coring AV FIX 3

6. Video Adjust 3


1 RFAGC Adjust 30 AGCVoltage

2 IFAGCSpeed FIX 1

3 IF Demodulator FIX 38

4 Fast Filter IF PLL FIX 0

5 RFFOA/FOB FIX 0 VCRRFoutput

6 AV FOA/FOB FIX 0

7 RFPA/NTIdentSensitivit FIX 2

8 AV PA/NT Ident Sensitivit FIX 2


20/27

Troubleshooting


7. Video Adjust 4


1 Bypass of Chroma Base Band FIX 00: active 1:

bypassed

2 FixedBeamCurrent FIX 0

3 FixedBeamCurrent1 FIX 0

4 Forced Colour On FIX 0 0: off1: on

5 Beam Current Limiting FIX 0

6 Chroma Trap Mode FIX 0

7 EHT Tracking Mode FIX 10: only on vertical

1: on vertical and EW

8 ComponentRcutoff FIX 32 Scart W/B

9 ComponentGcutoff FIX 32 Scart W/B

10 ComponentB cutoff FIX 32 Scart W/B

11 RGBBlankingMode FIX 1 Secam Blanking

12 Wide Blanking Front FIX 0

13 WideBlankingRear FIX 6

8. YC Delay


1 PAL Delay FIX 12

2 SECAM Delay FIX 12

3 NTSC Delay FIX 124 PAL AV Delay FIX 12

5 SECAM AV Delay FIX 12

6 NTSC AV Delay FIX 12


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Troubleshooting


9. Others


1 Service Blanking FIX 00: 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 10: not active

1: active

8 Bypass Peaking Delay FIX 00: normai operation

1:peaking delay bypassed

9 RatioPre&AfterShoot FIX 2

10 Ratioposi&NegaPeaks FIX 2

11 Dynamic Skin FIX 00 : 123 degree

1: 117 degree

12 Gamma&WhiteStretch FIX 1 0~3

13 DCTransferRatio FIX 10: No black level shift

1: black level shift

14 NTSCMatrix FIX 00:Japanesematrix

1:USAmatrix

15 DCXO Cap FIX 2 0~3


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Troubleshooting


4-2-4 ServiceAdjstment

1. AdjstingthePictreSizeSince 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 PowerOffMte1 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.


23/27

Troubleshooting


2. AdjstingthePictreStraightLines

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.


24/27

Troubleshooting


4-2-5 Replacements&Calibration

No Item Data Remark

1 Main B/D Adjust Tilt, Adjust Screen, Adjust Focus, Adjust Factory Data, Adjust W/B Toshiba Mode

2 Power B/D - Toshiba Mode

3 CRTAssy - -

4 FBT Adjust Screen, Adjust Focus Toshiba Mode

5 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


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Troubleshooting


3. Select:Mute,andgetintotheG2adjustToshibapattern.

4. FirstcheckIBRMinG2AdjustofFactoryandadjustScreenVRuntilScreenAdjust: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 Men POWERONMtePowerOFF


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Troubleshooting


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 Balancex:2755y:2755Y:453

White Balance (Standard Data)

x:2655y:2655Y:1.50.3

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 correctvalues.

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.


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kscb six cb1c n 4 troub

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