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Troubleshooting




4.Troubleshooting
4-1 CheckpointsbyErrorMode

4-1-1 FirstChecklistforTroubleshooting

1. Check the various cable connections first.
- Check to see if there is a burnt or damaged cable.
- Check to see if there is a disconnected or loose cable connection.
- Check to see if the cables are connected according to the connection diagram.

2. Check the power input to the Main Board.

3. CheckthevoltageinandoutbetweentheSMPSMainBoard,betweentheSMPSX,YMainBoard,
and between the Logic Boards.




Samsung Electronics 4-1
Troubleshooting




4-1-2 CheckpointsbyErrorMode

NoPower

- The LEDs on the front panel do not work when connecting the power cord.
Symptom - The SMPS relay does not work when connecting the power cord.
- The unit appears to be dead.

The SMPS relay or the LEDs on the front panel does not work when connecting the power cord
if the cables are improperly connected or the Main Board or SMPS is not functioning.
Inthiscase,checkthefollowing:
Major
- Check the internal cable connection.
Checklist
- Check the fuses.
- Check the output voltages of the SMPS.
- Replace the Main Board.




No Power




1
Yes
Check that the AC power cord is Connect the AC power cord
connected?


Refer to image of
No
Fig. 4-1.



If LED is set up as
No
beingONwhenPOWER-ON, Replace Fuse (FE801)
check the ligt-on in LED?



Yes



2
No
Is the AC Inlet socket Connect AC Inlet socket
connected?



Yes Refer to image of
Fig. 4-1.



A




4-2 Samsung Electronics
Troubleshooting




A




3
Check the connection between No
FuseF801S,forchecking Replace Fuse
SMPS's Fuse?


Refer to image of
Yes
Fig. 4-1.



4
No
ChecktheNo.4STAND-BY Replace the SMPS
power of CN801?



Yes Refer to image of
Fig. 4-1.


5
Replace the Main Board



Refer to image of
Fig. 4-1.




Samsung Electronics 4-3
Troubleshooting




1 3 2 4 5
<42" PDP>




1 3 2 4 5
<50" PDP>




4-4 Samsung Electronics
Troubleshooting




Whentheunitisrepeatedlyturningonandoff

Symptom The SMPS relay is repeatedly turning on and off.

Ingeneral,theSMPSrelayrepeatedlyturnsonandoffbytheprotectionfunctionduetoadefect
on a board connected to the SMPS.
- DisconnectallcablesfromtheSMPS,operatetheSMPSaloneandcheckiftheSMPSworks
Major
properly and if each voltage output is correct.
Checklist
- IfthesymptomcontinuesevenwhenSMPSisoperatingalone,replacetheSMPS.
- IfthesymptomisnotobservedwhenoperatingtheSMPSalone,findanydefective
assemblies by connecting the cables one by one.

WhenseparatingandconnectingthecablessuchasSMPS,XMAINBoardandYMAINBoard,
Caution asparkmaybegeneratedbytheelectricchargeofthehighcapacitycapacitor.Therefore,wait
some time after disconnecting the power cord from the unit.




When the unit is repeatedly turning on
and off




1
CheckthattheVa,VsvoltageofSMPS Yes
TunetheVa,VsorReplacetheSMPS
match the voltages marked on the
module label?


Refer to image of
No Fig. 4-2.



No
Did problem improve? Replace the Main Board



Yes




Did problem improve? No YMainBoardcablecheckorReplace
the SMPS



Yes



B




Samsung Electronics 4-5
Troubleshooting




B




No XMainBoardcablecheckorReplace
Did problem improve?
the SMPS



Yes




Did problem improve? No Logic Board cable check or Replace
the SMPS



Yes




Did problem improve? No
ReplacetheX,YBufferBoard




4-6 Samsung Electronics
Troubleshooting




1
<42" PDP>




1
<50" PDP>




Samsung Electronics 4-7
Troubleshooting




NoSound

Symptom Video is normal but there is no sound.

Generally there are four things that can cause this issue.
- Speakers not connected
Major
- Speakers are defective
Checklist
- Main board audio error
- SMPS not supplying voltage to the main board




No Sound




1
Is the cable connection between the Yes
Make the connection
Main Board and the speaker
properly connected?


Refer to image of
No Fig. 4-3.



2 No
Checkthatthevoltageonpin7,8of Replace the SMPS
CN801 has 12V?


Yes Refer to image of
Fig. 4-3.



Use an oscilloscope to
monitor the output of the speaker jack. No
Replace the Main Board
Does the wave form match the
wave form listed?


Yes



3
Replace the Speaker
SoundOutputShape

Refer to image of
Fig. 4-3.




4-8 Samsung Electronics
Troubleshooting




2 1 2
<42" PDP>




2 1 2
<50" PDP>




Samsung Electronics 4-9
Troubleshooting




4-1-3 FaultsandCorrectiveActions

Symptom RelatedImage CausesandCountermeasures



Address buffer defect
A blank vertical cell - Replace the corresponding
(block) appears on the upper/lowerbuffers(E,F)
screen. COF defect (burnt)
- Replace the module




A green screen appears
The Scale is not reseting
when the TV is turned
- Replace the Main board
on.




Incorrect program version
The OSD box appears
- Check the version of each program
but there is no text.
- Replace the Main board




Upper/LowerYBufferdefect
A blank upper (or lower)
- Replace the corresponding upper/
block appears on the
lower buffers
screen.




4-10 Samsung Electronics
Troubleshooting




Symptom RelatedImage CausesandCountermeasures




Either the main or
sub picture does not Replace the Main board
appear.




The SMPS voltage is incorrect
A vertical green line - Adjust the SMPS voltage according
appears on the screen. to the voltage printed on the module
label




X-Mainboarddefect
Dim screen
- ReplacetheX-Mainboard
(blurred in red)




Samsung Electronics 4-11
Troubleshooting




4-1-4 TroubleshootingProceduresbyassembly
IfMajorSymptomsishappened,CheckAssemblyrefertotableasfollow.

Assembly MajorSymptoms

SMPS-PDP TV Nopower,Blankscreen,theRelayrepeatsOnandOff

ASSYPDPP-X-MAINBOARD Blank screen

ASSYPDPP-Y-MAINBOARD Blank screen

ASSYPDPP-LOGICMAINBOARD Blankscreen,Screennoise

ASSYPDPP-X-MAINBUFFERBOARD Upper screen is blank

ASSYPDPP-Y-MAINBUFFERBOARD Lower screen is blank

ASSYPDPP-E-BUFFERBOARD Corresponding Buffer Board block screen is blank

ASSYPDPP-F-BUFFERBOARD Corresponding Buffer Board block screen is blank

NoPower,Abnormalscreenforeachinputsource,PIPscreen
ASSYPCBMISC-MAIN
trouble,Soundtrouble

The side function key does not work properly.
ASSYBOARDP-TOUCHFUNCTION&IR Theremotecontroldoesnotworkproperly,theLEDdoesnot
work properly.




4-12 Samsung Electronics
Troubleshooting




4-2 Adjustment

4-2-1 ServiceInstruction

Beforeperformingservice
1. Check if the measurement and test equipment is working properly.

2. Secure sufficient work space for disassembling the product.

3. Prepare a soft pad for disassembling the product.


Serviceadjustmentafterboardreplacement


1. PDPOptionofFactoryModesettheFactoryDataTypeitemasthesuitablevalueofrelevantmodel.

2. Adjust Calibration of Factory Mode for each mode.

3. Adjust White Balance of Factory Mode.



1. WritedownthevalueofHDMIWhiteBalanceofFactoryModebeforereplacingBoard.

2. PDPOptionofFactoryModesettheFactoryDataTypeitemasthesuitablevalueofrelevantmodel.

3. SetthevalueofHDMIWhiteBalancewiththevaluewrittendownbefore.




Samsung Electronics 4-13
Troubleshooting




4-2-2 HowtoAccessServiceMode

ForLatinAmerica
1. General Remote

ToEnter: POWEROFF MUTE 1 8 2 POWERON

ToExit: POWEROFF POWERON

2. Factory Remote

ToEnter: POWERON INFO FactoryKey (Intervalbetweenkeystrokes:lessthan3sec)

ToExit: Press the Factory key twice. (Pressing once enters Aging Mode)

3. Settings when entering Factory mode
- SharpScreen(Dynamic),ColorTone(Cool1),Factory(DynamicCEOff)

4. Adjustment Procedures
- ChannelKey:Selectanitem.
- Volume Key:Adjustthevalueupordown.
- MENUKey:SavethechangestotheEEPROMandreturntothehigher-levelmode.
- UsingtheNumeric(0~9)keys,youcanselectachannel.
- UsingtheSOURCEkey,youcanswitchAVmodes.

5. InitialSERVICEMODEDISPLAYState

Option T-TDT5IBRC-XXXX.X
Control T-TDT5IBRS-XXXX.X
SVC EDID SUCCESS
Expert CALIB:AVXCOMPXPCXHDMIX
ADC/WB Option:XXXXXXXXXXXXXXXX
Advanced
T-TDTDEUC-0100
SDAL-XXXX
RFS:XXXXT-TDT5IBRC
20XX-XX-XX
Type:XXXXXXX
Model:XXXXXXX
MAC Not Available
FactoryDataVer:XXX
EERCVersion:XXX
DTP-AP-COMP-XXX-XX
DTP-HIIG-XXXX
DTP-BP-XXXX-XX
Dateofpurchase:XX/XX/XX


The version of the firmware displayed at the bottom of the screen may differ and the firmware is subject to
change for the improvement of product functions.
IfyouhaveadjustedthesettingsinServiceMode,youhavetoresettheproduct.



4-14 Samsung Electronics
Troubleshooting




ForEastAsia
1. General Remote

ToEnter: POWEROFF INFO MENU MUTE POWERON

ToExit: POWEROFF POWERON

2. Factory Remote

ToEnter: POWERON INFO FactoryKey (Intervalbetweenkeystrokes:lessthan3sec)

ToExit: Press the Factory key twice. (Pressing once enters Aging Mode)

3. Settings when entering Factory mode
- SharpScreen(Dynamic),ColorTone(Cool1),Factory(DynamicCEOff)

4. Adjustment Procedures
- ChannelKey:Selectanitem.
- Volume Key:Adjustthevalueupordown.
- MENUKey:SavethechangestotheEEPROMandreturntothehigher-levelmode.
- UsingtheNumeric(0~9)keys,youcanselectachannel.
- UsingtheSOURCEkey,youcanswitchAVmodes.

5. InitialSERVICEMODEDISPLAYState

Option T-TDT5DAAC-XXXX.X
Control T-TDT5DAAS-XXXX.X
SVC EDID SUCCESS
Expert CALIB:AVXCOMPXPCXHDMIX
ADC/WB Option:XXXXXXXXXXXXXXXX
Advanced
T-TDTDEUC-0100
SDAL-XXXX
RFS:XXXXT-TDT5DAAC
20XX-XX-XX
Type:XXXXXXX
Model:XXXXXXX
MAC Not Available
FactoryDataVer:XXX
EERCVersion:XXX
DTP-AP-COMP-XXX-XX
DTP-HIIG-XXXX
DTP-BP-XXXX-XX
Dateofpurchase:XX/XX/XX


The version of the firmware displayed at the bottom of the screen may differ and the firmware is subject to
change for the improvement of product functions.
IfyouhaveadjustedthesettingsinServiceMode,youhavetoresettheproduct.




Samsung Electronics 4-15
Troubleshooting




4-2-3 FactoryData

Option
Item Data Range

Factory Reset

Type 50HHcD4 42HHcD3/50HHcD4/50FArN4/50FArV4/58FArN1/58FArV1/63FArN1

Local Set EA_Thai EU / EU Italy / EU_Africa / EU_Israel / NORDIG / AD_Au / CIS

PC420 / PC430 / PC431 / PC432 / PC450 / PC451 / PC480 / PC 520 /
Model PC450 PC530 / PC531 / PC540 / PC541 / PC550 / PC551 / PC560 / PC580 /
PC590 / PC670 / PC6100 / PC6400 / PC6500 / PC7000 / PC7700 / PC8000

Tuner DRXKSEMCO S2Semco/T2CXD/DRXKSEM_E/DRXKALPS/DRXKSEM_2

DDR 0 0 / 1 /2

Light Effect OFF On / Off

NONE/PBA/SUWON/SESK/SEH/SERK/SDMA_AU/SDMA_NZ/
Ch Table NONE SDMA_SG / SEIN / SAVINA / SIEL_C / SIEL_N / TTSEC / TSED / TSE /
IRAN

Country ...

S-C-Gray/S-R-Black/S-BLK/T-R-BLK/T-C_Gray/W-Violet/W-Milky/
Front Color S-R-BLK
T-M-Brn / T-W-Gray / W-D-Gray / W-M-White




4-16 Samsung Electronics
Troubleshooting




Control

Menu Item Data Range

EDID Protect On On / Off

L12_1366_768 / L13_1366_768 /
EDID L12_1920_1080 / L13_1920_1080
EDID Type P13_1920_1080 / P12_1024_768 / P13_1024_768 /
P12_1366_768 / P13_1366_768 /
P12_1920_1080

EDIDWrite(0x4D,0) P13_1920_1080

Video Mute Time 8 1 ~ 10

19" / 22" / 23" / 26" / 27" / 32" / 37" / 40" /
Inch 50"
42" / 46" / 50" / 52" / 57"

Dimm Type EXT Don't' adjustment

Off / 0.85 / 0.880.90.0.93 / 0.95 / 0.98 / M1
D.Gamma Off
/ M2 / M3 / M4

TTX On On / Off

TTXList Flof Flof/List

Lang OSD / W Europe / E Europe / Russia
TTXGroup W Europe
/Greek/Turkey/Arab/Farsi/ArabHbrw

HighDevi Off On / Off

Volume Curve EA EA/India

NT Conversion Off On / Off
Sub Option
Language Group East Asia East Asia / Iran / Israel / Middle Asia

Anynet+ On On / Off

Auto Power On On / Off

LNA Menu Off On / Off

LVDS_Format Default Don't' adjustment

Carrier Mute Off On / Off

HDMIEQ1 Off Off / Low / Middle / Strong

HDMIEQ2 Off Off / Low / Middle / Strong

HDMIEQ3 Low Off / Low / Middle / Strong

HDMIEQ4 Low Off / Low / Middle / Strong

Watch Dog Off On / Off

Bus Stop

Panel Auto Setting Don't' adjustment


Samsung Electronics 4-17
Troubleshooting




Menu Item Data Range

HotPlug On On / Off

HotplugCtrl On On / Off

Sub Option HOTPlugDelay 9 0 ~ 63

USB Upgrade On On / Off

Spread Spectrum On / Off

PixelShift Test Off On / Off

Logic Download Off On / Off

Pattern Select

FRC Mode 100Hz/Repeat

FRC DBG MarkOn 0~31

FRC Bypass On / Off
PDP Option
FRC MV Force On / Off

MB SW On / Off

MB Offset 0 ~ 255

Ve Control On / Off

DRC On / Off

Logic USB D/L

HotelOption Not used Not used

Shop Option Off On / Off

Detection Threshold

FM Prescale 22 0 ~ 255

AM Prescale 22 0 ~ 255

Nicam Prescale 33 0 ~ 255

FM M Prescale 23 0 ~ 255

SC1 Vol 12 0 ~ 255

Sound SC2 Vol 12 0 ~ 255

Audio Delay Normal 8 0 ~ 255

Audio Delay Game 8 0 ~ 255

Num of Check 10 0 ~ 255

Stereo Cnt 10 0 ~ 255

MP3 Level 12 0 ~ 255

Ext Volume Scale 2 0 ~ 255




4-18 Samsung Electronics
Troubleshooting




Menu Item Data Range

R2E Scart2 ffset 1 0 ~ 255

NTP3200

NTP Master Volume 30 0 ~ 255

Sound NTP PWM Modulation 208 0 ~ 255

NTP DRC Thresh1 53 0 ~ 255

NTP DRC Thresh2 35 0 ~ 255

NTPSpeakerEQ On On / Off



SVC

Menu Item Data Range

Pattern Sel

FRC PC Mode Off On / Off
Test Pattern
Logic Pattern Sel 0 0 ~ 13

Logic Level Sel 255 0 ~ 255

Panel auto Setting Failure

Panel Display Time 4Hr 4Hr

Logic Usb D/L Success

DVB
Tuner Status
ISDB-T



Expert

Menu Item Data Range

N/D ADJ ...

Source ...




Samsung Electronics 4-19
Troubleshooting




ADC/WB

Menu Item Data Range

ADC

1st_AV_Low 17 0 ~ 255

1st_AV_High 234 0 ~ 255

1st_AV_Delta 3 0 ~ 255

1st_Comp_Low 17 0 ~ 255

1st_Comp_High 234 0 ~ 255

1st_Comp_Delta 3 0 ~ 255
ADC Target
1st_PC_Low 1 0 ~ 255

1st_PC_High 235 0 ~ 255

1st_PC_Delta 3 0 ~ 255

2nd_Low 2 0 ~ 255

2nd_High 235 0 ~ 255

2nd_Delta 1 0 ~ 255

ADC Result 0 ~ 255

1st_AV_Gain 0 ~ 255

1st_AV_Offset 0 ~ 255

1st_Comp_Gain 0 ~ 255

1st_Comp_Gain_Cb 0 ~ 255

1st_Comp_Gain_Cr 0 ~ 255

1st_Comp_Offset 0 ~ 255
Depend on
ADC Result 1st_Comp_Offset_Cb Calibration 0 ~ 255
results
1st_Comp_Offset_Cr 0 ~ 255

1st_PV_R_Gain 0 ~ 255

1st_PV_G_Gain 0 ~ 255

1st_PV_B_Gain 0 ~ 255

1st_PC_R_Offet 0 ~ 255

1st_PC_G_Offset 0 ~ 255

1st_PC_B_Offset 0 ~ 255




4-20 Samsung Electronics
Troubleshooting




Menu Item Data Range

2nd_R_Offset 0 ~ 255

2nd_G_Offset 0 ~ 255

2nd_B_Offset Depend on 0 ~ 255
ADC Result Calibration
2nd_R_Gain results 0 ~ 255

2nd_G_Gain 0 ~ 255

2nd_B_Gain 0 ~ 255

Sub Brightness 0 ~ 255

Red Offset 0 ~ 255

Green Offset 0 ~ 255

Blue Offset Depend on W/B 0 ~ 255
WB
Sub Contrast adjustment 0 ~ 255

Red Gain 0 ~ 255

Green Gain 0 ~ 255

Blue Gain 0 ~ 255




Samsung Electronics 4-21
Troubleshooting




Advanced

Menu Item Data Range

Gamma 0.95

Pwm Max 100

Pwm Min 7

Pwm Mid 10

Sub Setting Contrast Dimming OFF

7.5 IRE NTSC ...

7.5 IRE Offset ...

Comp Phase 49

Led Peak OnOff off

Standard Contrast 95 0 ~ 100

Standard Brightness 42 0 ~ 100

Standard Sharpness 50 0 ~ 100
EPA Standard
Standard Color 50 0 ~ 100

Standard Tint 0 0 ~ 100

Standard Backlight 14 0 ~ 100

WB Movie off On / Off

Color Mode - Dynamic / Standard / Movie

Color Tone - Cool / Normal / Warm1 / Warm2

Msub Brigh - 0 ~ 255

Msub Contr - 0 ~ 255

W1_RGAIN - 0 ~ 255

W1_BGAIN - 0 ~ 255

WB Movie W1_ROFFS - 0 ~ 255

W1_BOFFS - 0 ~ 255

W2_RGAIN - 0 ~ 255

W2_BGAIN - 0 ~ 255

W2_ROFFS - 0 ~ 255

W2_BOFFS - 0 ~ 255

N_RGAIN - 0 ~ 255

N_BGAIN - 0 ~ 255




4-22 Samsung Electronics
Troubleshooting




Menu Item Data Range

W2_ROFFS - 0 ~ 255

W2_BOFFS - 0 ~ 255

N_RGAIN - 0 ~ 255

N_BGAIN - 0 ~ 255

N_ROFFS - 0 ~ 255

N_BOFFS - 0 ~ 255

Movie Contr - 3 ~ 100
WB Movie Movie Brigh - 2 ~ 100

Movie Color - 1 ~ 100

Movie Sharp - 0 ~ 100

Movie Tint - 0 ~ 50

Movie BkLight - 0 ~ 10

Off / 0.85 / 0.88 / 0.90 / 0.93 / 0.95 / 0.98 /
M.Gamma -
M1 / M2 / M3 / M4

M_Sub Gamma - -3 ~ +3




Samsung Electronics 4-23
Troubleshooting




4-2-4 ServiceAdjustment

WhiteBalance-Calibration
Ifpicturecoloriswrong,docalibrationfirst.

Execute calibration in Factory Mode

1. Source:VIDEO
2. SettingMode:PAL(Mode:#2)
3. Pattern:Pattern#24(ChessPattern)
4. UseEquipment:K-7256orEquipmentofequalitylevel
5. Work order
1) Enter by Factory Mode select "ADC/WB".
2) Select "ADC".
3) Select "AV CALIBRATION" again in CALIBRATION MENU.
4) AfterCompletingCalibration,comeout"Avsuccess".OSDonthescreen(bottom-side)forabout
3 seconds.

Source AV:PALcomposite
PC:1280*720/60Hz




< Chess Pattern >




4-24 Samsung Electronics
Troubleshooting




WhiteBalance

Adjust spec.

1. Source:HDMI
2. SettingMode:1280*[email protected]
3. Pattern:Pattern#92
4. UseEquipment:MIK-7256(MSPG925L)




5. Work order
1) ConnectHDMI(DVI)outputterminalofMIK-7256(MSPG925L)totheHDMIinputinmainset
2) SettheinputtoHDMImode
3) Enter the White Balance menu of service mode
4) Contact CA-210 sensor to glass filter




< Fixed Position of CA210 Probe >




Samsung Electronics 4-25
Troubleshooting




5) Adjust the low light
- AdjustSub-Brighttosetthe`Y'value
- Adjust R-Offset (`x') and B-Offset (`y') to the color coordinates.
* DonotadjustG-Offsetdata
6) Adjust the high light
- AdjustSub-Contrasttosetthe`Y'value
- Adjust R-Gain (`x') and B-Gain (`y') to the color coordinates.
* DonotadjusttheG-gaindata

(CA-210)
InputMode
x y Y(L) T(K),MPCD

Don't Control
CVBS H/L 278 285 10,500/