4.

Troubleshooting

4. Troubleshooting
4-1. Troubleshooting
4-1-1. Previous check
1. Check the various cable connections first.
• Check to see if any cables are damaged or burnt.
• 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.

UD4003(19", 26", 32")

UD5003(22", 40")
SMPS BOARD

MAIN BOARD

T-CON

UD4003(19")
UD5003(22")

SMPS BOARD
MAIN BOARD

LD400 / LD403(32")
LD503(40")
SMPS BOARD

MAIN BOARD

T-CON

4-1
4. Troubleshooting

4-1-2. Flip (UE40D5003BW*** / UE26/32D4003BW*** / LE40D503F7W*** / LE32D400E1W*** / LE32D403E2W***)

„„ No Power

-- 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 units appears to be dead.
The IP 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. In this case, check the following:
Major -- Check the internal cable connection status inside the unit.
checkpoints -- Check the fuses of each part.
-- Check the output voltage of SMPS.
-- Replace the Main Board.

Lamp(Backlight) Off, No Change the 14p power cable.

power indicator LED on?

Yes

Lamp(Backlight) Off, No Change INVERTER/BALANCE B'D.

power indicator LED on ?

Yes

Does proper Stand-By DC A5V No

appear at VIA - A5V_PW ?

Yes

Does proper Main DC B13V, B5V No

appear at VIA - B13V_PW, B5V_PW ?

Yes Change the Main Assy.

Does proper DC A3.3V No

appear at VIA - A3.3V_PW ?
Diagnostics
Yes

Does proper B3.3V, B1.5V appear at No

VIA - B3.3V_PW, B1.5V_PW

Yes

Does proper DC B13V

appear at LVDS connector No Change the LVDS cable.
Pin #1~5 of T-con b'd?
Yes

Does proper DC B13V No Change the T-con b'd.

appear at F1 of T-con b'd?

Yes

Check a other function.

A power is supplied to set? No (No picture part)
Replace a LCD Panel.

Caution Make sure to disconnect the power before working on the IP board.

4-2
 4. Troubleshooting

Main Board_Bottom

4-3
4. Troubleshooting

„„ No video (HDMI 1, 2 - Digital signal)

Symptom -- Audio is normal but no picture is displayed on the screen.

-- Check the HDMI source.

Major
-- Check the HDMI switch, Check the Main Chipset.
checkpoints -- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

Power indicator LED is off. No

Check a set in the 'Stand-by mode'.
Lamp(Backlight) on, no video ?

Yes

Check the HDMI source and No

Input the HDMI signal properly.
check the connection of HDMI cable ?
Yes

Does the signal appear at Check CN601, CN604

CN601 (Pin#12 , #7 )(HDMI1) No CN602, CN603.
3
CN604 (Pin#12 , #7 )(HDMI2) Check HDMI cable.
(HDMI RX_Clk , RX_Data) ? Change the Main Assy.

Yes

Does the digital data appear at No Check IC1001 (X6).

2 TP-E_TXCLK+, E_TXCLK- ,
Change the Main Assy.
O_TXCLK+, O_TXCLK- ?

Diagnostics
Yes

Check the LVDS cable?

No
Check the T-Con B'd? Please, Contact Tech support.
Replace the LCD panel?

Caution Make sure to disconnect the power before working on the IP board.

4-4
 4. Troubleshooting

Main Board_Top

4-5
4. Troubleshooting

„„ WAVEFORMS

3 HDMI input (RX_Data, RX_Clk)

2 LVDS output

4-6
 4. Troubleshooting

„„ No Video (Tuner_CVBS)

Symptom -- Audio is normal but no picture is displayed on the screen.

-- Check the Tuner CVBS source.

Major
-- Check the Tuner, Check the Main Chipset.
checkpoints -- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

Power indicator LED is off. No

Check a set in the 'Stand-by mode'
Lamp(Backlight) on, no video ?

Yes

Check the RF source and No

Input the RF source properly.
check the connection of RF cable ?
Yes

Does the DC TU5V_PW, TU33V_PW

appear at TP - TUNER_33V, B 5V No Change the Main Assy.
Pin of Tuner ?

Yes

Does the digital data appear at

No Check IC1001 (X6).
2 TP-E_TXCLK+, E_TXCLK- ,
Change the Main Assy.
O_TXCLK+, O_TXCLK- ?

Yes

Check the LVDS cable?

Diagnostics
Check the T-Con B'd? No Please, Contact Tech support.
Replace the LCD panel?

Caution Make sure to disconnect the power before working on the IP board.

4-7
4. Troubleshooting

Main Board_Top

4-8
 4. Troubleshooting

„„ WAVEFORMS

2 LVDS output

4-9
4. Troubleshooting

„„ No Video (Tuner DTV)

Symptom -- Audio is normal but no picture is displayed on the screen.

-- Check the DTV source.

Major
-- Check the Tuner, Check the Main Chipset.
checkpoints -- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

Power indicator LED is off. No

Check a set in the 'Stand-by mode'
Lamp(Backlight) on, no video ?

Yes

Check the RF source and No

Input the RF source properly.
check the connection of RF cable ?
Yes

Check the 'signal strength' in Self Diagnosis No

Check the D-TV source.
menu Strength is enough ?

Yes

Does the DC B5V_TU_PW, B33V_TU_PW No Change the Main Assy.

appear at #3, #5 Pin of Tuner ?

Yes

Does the digital data appear at

No Check IC1001 (X6).
2 TP-E_TXCLK+, E_TXCLK- ,
Change the Main Assy.
Diagnostics O_TXCLK+, O_TXCLK- ?

Yes

Check the LVDS cable?

Check the T-Con B'd? No Please, Contact Tech support.
Replace the LCD panel?

Caution Make sure to disconnect the power before working on the IP board.

4-10
 4. Troubleshooting

Main Board_Top

4-11
4. Troubleshooting

„„ WAVEFORMS

2 LVDS output

4-12
 4. Troubleshooting

„„ No Video (Video CVBS)

Symptom -- Audio is normal but no picture is displayed on the screen.

-- Check the Video CVBS source

Major
-- Check the Main Chipset.
checkpoints -- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

Power indicator LED is off. No

Check a set in the 'Stand-by mode'.
Lamp(Backlight) on, no video ?

Yes

Check the video source and No

Input the video source properly.
check the connection of video cable?
Yes

Does the CVBS data appear at No Check CN503.

4
PIN - COMP1_Y_CVBS ? Change the Main Assy.

Yes

Does the digital data appear at

No Check IC1001 (X6).
2 TP-E_TXCLK+, E_TXCLK- ,
Change the Main Assy.
O_TXCLK+, O_TXCLK- ?

Yes

Check the LVDS cable?

Diagnostics
Check the T-Con B'd? No Please, Contact Tech support.
Replace the LCD panel?

Caution Make sure to disconnect the power before working on the IP board.

4-13
4. Troubleshooting

Main Board_Top

4-14
 4. Troubleshooting

„„ WAVEFORMS

4 CVBS OUT (Grey Bar)

2 LVDS output

4-15
4. Troubleshooting

„„ No Sound

Symptom -- Video is normal but there is no sound..

-- When the speaker connectors are disconnected or damaged.

Major
-- When the sound processing part of the Main Board is not functioning.
checkpoints -- Speaker defect.

Check the source and

No
check the connection of sound cable Input the sound source properly.
(Comp/PC/DVI to HDMI) ?
Yes

Does the sound data appear at

PIN - COMP1_SR_IN,
No Check CN503, CN402.
COMP1_SL_IN
Change the Main Assy.
VIA - PC_DVI_SR_IN,
PC_DVI_SL_IN (PC/DVI) ?

Yes

Does the DC B12VS appear at No Change the Main Assy.

CN201 PIN 7,9 - B12VS_PW ?

Yes

Does the sound data appear at No Check IC1001 (X6).

7
TP - SPK_ L-, SPK_L+, SPK_R-, SPK_R+ ? Change the Main Assy.
Diagnostics

Yes

Replace speaker ?
No Please, Contact Tech support.
TBD

Caution Make sure to disconnect the power before working on the IP board.

4-16
 4. Troubleshooting

Main Board_Bottom

4-17
4. Troubleshooting

„„ WAVEFORMS

7 Speaker out

4-18
 4. Troubleshooting

4-1-3. Non Filp (UE22D5003BW*** / UE19D4003BW***)

„„ No Power

-- 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 units appears to be dead.
The IP 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. In this case, check the following:
Major -- Check the internal cable connection status inside the unit.
checkpoints -- Check the fuses of each part.
-- Check the output voltage of SMPS.
-- Replace the Main Board.

Lamp(Backlight) Off, No Change the 14p power cable.

power indicator LED on?

Yes

Lamp(Backlight) Off, No Change INVERTER/BALANCE B'D.

power indicator LED on ?

Yes

Does proper Stand-By DC A5V No

appear at VIA - A5V_PW ?

Yes

Does proper Main DC B13V, B5V No

appear at VIA - B13V_PW, B5V_PW ?

Yes Change the Main Assy.

Does proper DC A3.3V No

appear at VIA - A3.3V_PW ?
Diagnostics
Yes

Does proper B3.3V, B1.5V appear at No

VIA - B3.3V_PW, B1.5V_PW

Yes

Does proper DC B13V appear at No Change the LVDS cable.

LVDS connector Pin #1~5 of Panel ?

Yes

Check a other function.

A power is supplied to set? No (No picture part)
Replace a LCD Panel.

Caution Make sure to disconnect the power before working on the IP board.

4-19
4. Troubleshooting

Main Board_Bottom

4-20
 4. Troubleshooting

„„ No video (HDMI 1, 2 - Digital signal)

Symptom -- Audio is normal but no picture is displayed on the screen.

-- Check the HDMI source.

Major
-- Check the HDMI switch, Check the Main Chipset.
checkpoints -- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

Power indicator LED is off. No

Check a set in the 'Stand-by mode'.
Lamp(Backlight) on, no video ?

Yes

Check the HDMI source and No

Input the HDMI signal properly.
check the connection of HDMI cable ?
Yes

Does the signal appear at

Check CN601,CN602.
CN601 (Pin#12 , #7 )(HDMI1) No
3 Check HDMI cable.
CN604 (Pin#12 , #7 )(HDMI2)
Change the Main Assy.
(HDMI RX_Clk , RX_Data) ?

Yes

Does the digital data appear at No Check IC1111 (X5).

2 TP-E_TXCLK+, E_TXCLK- ,
Change the Main Assy.
O_TXCLK+, O_TXCLK-

Diagnostics
Yes

Check the LVDS cable?

No
Check the T-Con B'd? Please, Contact Tech support.
Replace the LCD panel?

Caution Make sure to disconnect the power before working on the IP board.

4-21
4. Troubleshooting

Main Board_Top

4-22
 4. Troubleshooting

„„ WAVEFORMS

3 HDMI input (RX_Data, RX_Clk)

2 LVDS output

4-23
4. Troubleshooting

„„ No Video (Tuner_CVBS)

Symptom -- Audio is normal but no picture is displayed on the screen.

-- Check the Tuner CVBS source.

Major
-- Check the Tuner, Check the Main Chipset.
checkpoints -- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

Power indicator LED is off. No

Check a set in the 'Stand-by mode'
Lamp(Backlight) on, no video ?

Yes

Check the RF source and No

Input the RF source properly.
check the connection of RF cable ?
Yes

Does the DC B5V_TU_PW, B33V_TU_PW No Change the Main Assy.

appear at #2, #4 Pin of Tuner ?

Yes

Does the digital data appear at

No Check IC1111 (X5).
2 TP-E_TXCLK+, E_TXCLK- ,
Change the Main Assy.
O_TXCLK+, O_TXCLK- ?

Yes

Check the LVDS cable?

Diagnostics
Check the T-Con B'd? No Please, Contact Tech support.
Replace the LCD panel?

Caution Make sure to disconnect the power before working on the IP board.

4-24
 4. Troubleshooting

Main Board_Top

4-25
4. Troubleshooting

„„ WAVEFORMS

2 LVDS output

4-26
 4. Troubleshooting

„„ No Video (Tuner DTV)

Symptom -- Audio is normal but no picture is displayed on the screen.

-- Check the DTV source.

Major
-- Check the Tuner, Check the Main Chipset.
checkpoints -- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

Power indicator LED is off. No

Check a set in the 'Stand-by mode'
Lamp(Backlight) on, no video ?

Yes

No
Check the connection of RF cable ? Input the RF source properly.

Yes

Check the 'signal strength' in Self Diagnosis No

Check the D-TV source.
menu Strength is enough?

Yes

Does the DC B5V_TU_PW, B33V_TU_PW No Change the Main Assy.

appear at #2, #4 Pin of Tuner ?

Yes

Does the digital data appear at

No Check IC1111 (X5).
2 TP-E_TXCLK+, E_TXCLK- ,
Change the Main Assy.
Diagnostics O_TXCLK+, O_TXCLK-?

Yes

Check the LVDS cable?

Check the T-Con B'd? No Please, Contact Tech support.
Replace the LCD panel?

Caution Make sure to disconnect the power before working on the IP board.

4-27
4. Troubleshooting

Main Board_Top

4-28
 4. Troubleshooting

„„ WAVEFORMS

2 LVDS output

4-29
4. Troubleshooting

„„ No Video (Video CVBS)

Symptom -- Audio is normal but no picture is displayed on the screen.

-- Check the Video CVBS source

Major
-- Check the Main Chipset.
checkpoints -- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

Power indicator LED is off. No

Check a set in the 'Stand-by mode'.
Lamp(Backlight) on, no video ?

Yes

Check the video source and No

Input the video source properly.
check the connection of video cable?
Yes

Does the CVBS data appear at No Check CN502_NEU.

4
PIN - COMP2_Y_CVBS ? Change the Main Assy.

Yes

Does the digital data appear at

No Check IC1111 (X5).
2 TP-E_TXCLK+, E_TXCLK- ,
Change the Main Assy.
O_TXCLK+, O_TXCLK- ?

Yes

Check the LVDS cable?

Diagnostics
Check the T-Con B'd? No Please, Contact Tech support.
Replace the LCD panel?

Caution Make sure to disconnect the power before working on the IP board.

4-30
 4. Troubleshooting

Main Board_Top

4-31
4. Troubleshooting

„„ WAVEFORMS

4 CVBS OUT (Grey Bar)

2 LVDS output

4-32
 4. Troubleshooting

„„ No Sound

Symptom -- Video is normal but there is no sound..

-- When the speaker connectors are disconnected or damaged.

Major
-- When the sound processing part of the Main Board is not functioning.
checkpoints -- Speaker defect.

Check the source and

No
check the connection of sound cable ? Input the sound source properly.
(HDMI)
Yes

Does the sound data appear at No Check CN502_NEU.

PIN - COMP2_SR_IN,COMP2_SL_IN ? Change the Main Assy.

Yes

Does the DC B12VS appear at No Change the Main Assy.

CN201 PIN 7,9 - B12VS_PW ?

Yes

Does the sound data appear at No Check IC1111 (X5).

7
TP - SPK_ L-, SPK_L+, SPK_R-, SPK_R+ ? Change the Main Assy.
Diagnostics

Yes

Replace speaker ? No Please, Contact Tech support.

Caution Make sure to disconnect the power before working on the IP board.

4-33
4. Troubleshooting

Main Board_Bottom

4-34
 4. Troubleshooting

„„ WAVEFORMS

7 Speaker out

4-35
4. Troubleshooting

4-2. Alignments and Adjustments

4-2-1. General Alignment Instuction
1. Usually, a color LED/LCD TV needs only slight touch-up adjustment upon installation.
Check the basic characteristics such as height, horizontal and vertical sync.
2. Use the specified test equipment or its equivalent.
3. Correct impedance matching is essential.

4. Avoid overload. Excessive signal from a sweep generator might overload the front-end of the TV.
When inserting signal markers, do not allow the marker generator to distort test result.

5. Connect the TV only to an AC power source with voltage and frequency as specified on the backcover nameplate.

6. Do not attempt to connect or disconnect any wire while the TV is turned on.
Make sure that the power cord is disconnected before replacing any parts.

7. To protect against shock hazard, use an isolation transformer.

4-36
 4. Troubleshooting

4-3. Factory Mode Adjustments

4-3-1. Entering Factory Mode
To enter ‘Service Mode’ Press the remote -control keys in this sequence :
- If you do not have Factory remote - control

Power OFF INFO MENU MUTE Power ON

- If you have Factory remot - control

INFO FACTORY KEY

4-3-2. How to Access Service Mode

Using the Customer Remote
1. Turn the power off and set to stand-by mode.
2. Press the remote buttons in this order; POWER OFF- INFO - MENU - MUTE to turn the set on.
3. The set turns on and enters service mode. This may take approximately 20 seconds.
4. Press the Power button to exit and store data in memory.
- If you fail to enter service mode, repeat steps 1 and 2 above.
5. Initial SERVICE MODE DISPLAY State

Option T-MSU ♠ D ♣ ♣ C-XXXX ♠ OPTION (Option-Model)

T-MSU ♠ D ♣ ♣ S-XXXX LD400 / LD403 / LD503 /
Control 5 X5-TV
E-Manual : XXXXXXXXXX-XXXX UD4003 / UD5003
SVC ♣♣ OPTION (Option-Local Set)
Expert EDID SUCCESS EU EU / EU_* / NORDIG / CIS_* / AD_*
ADC/WB HDCP SUCCESS
CALIB : AV / COMP / PC / HDMI /
Advanced
Option : XXXX XXXX
T-MSXDXX-XXXX
SDAL-X.XX.X.X
RFS : "Mstar-X5 XXXX"
20XX-XX-XX
F-ET-0xXX-XXXX
Type : XXXXXXXX
Model : XXXXXXXX
CIP SUCCESS LOCK X
Factory Data Ver : XX
EERC Version : XXX
DTP-AP-COMP-XXX
DTP-BP-HAL-XXXX
DTP-BP-XXXX-XX
Date Of Purchase : XX/XX/XXXX

* How to enter the hidden factory mode.

a. into the factory mode
b. move the tap to Advanced
c. key input : 0 + 0 + 0 + 0
** hidden menu : Advanced
6. Buttons operations withn Service Mode
Menu Full Menu Display/Move to Parent Menu
Direction Keys / Item Selection by Moving the Cursor

Direction Keys / Data Increase / Decrease for the Selected Item

Source Cycles through the active input source that are connected to the unit

4-37
4. Troubleshooting

4-3-3. Factory Data

Option
Factory Name Data Range Use
Factory Reset

19A6TH0C/19I6TH0C/22D6TF0C/22I6TF0C
/26A6AH0C/26D6AH0C/26L6AH0C/32A6AF0C
Select Panel Type
/32A6AH0C/32D6AF0C/32L6AH0C/37L6AF0C
 : inch
/40A6AF0C/40D6AF0C/40L6AF0C/46A6AF0C
 : vendor
/46D6AF0C/19A6TH0E/19L6TH0E/22D6TF0E
 : refresh
Type /22L6TF0E/23A6TF0E/24L6TF0E/27A6TF0E
 : POL
/32A6AH0E/32A6UF0E/32P6AH0E/32P6UF0E
 : resolution
/32L6UF0E/32L6AH0E/37P6UF0E/40A6UF0E
 : multi
/40P6UF0E/40H6UF0E/46A6UF0E/46P6UF0E
 : BLU
/43DHHcD/51DFHcD/51DHHcD/51DSArD/51DSCrD
/59DFHcD/59DSArD/59DSCrD/64DFHcD/64DSCrD

EU/EU_ITALY/EU_GER/EU_FRANCE
/EU_BENELUX/EU_UK/EU_ARMENIA/NORDIG
/AD_AU/AD_NZ/AD_SINGAPOL/CIS_RUSIA
/CIS_UKRINA/CIS_KAZAKH/EU_TURKEY
/EU_AFRICA/EU_MOROCO/EA_VIET/EA_THAI
/EA_INA/EA_CHINA/EA_INDIA/EA_SRILANKA
Local Set EU Select Area
/EA_NEPAL/EA_BANGLA/EA_IRAN/EA_ISRAEL
/EA_EGYPT/EA_LIBYA/EA_CIS/EA_M_ASIA
/EA_IRAQ/EA_ARAB/EA_SAUDI/EA_PAKISTAN
/EA_E_ASIA/EA_AFRICA/EA_S_AFRICA/EA_MAL
/EA_PHI/ED_IRAN/ED_VIET/ED_INA/ED_ISRAEL
/COLOMBIA/TAIWAN

LD400 / LD450 / LD480 / LD550 / LD570 / LD580

/ UD4000 / UD4010 / UD5000 / UD5500 / UD5550
/ UD5700 / PD450 / PD451 / PD460 / PD490 /
PD491 / PD540 / PD541 / PD550 / PD551 / PD560
/ PD570 / PD6400 / PD6500 / PD6600 / PD6900 /
PD7000 / LD460H / LD463H / LD467H / LD468H /
LD560H / LD568H / LD580H / UD4000H / UD5000H
/ UD5500H / LD567H / PD6452 / PD6910 / PD580 /
Model LD550 PD480 / PD452 / PD420 / LD430 / LD530 / UD4020 Select Model
/ UD5010 / LD531 / LD551 / PD495 / PD6905 /
PD6915 / PD7005 / UD5030 / LD451 / LD455 /
LD481 / LD555 / LD556 / LD575 / LD578 / LD579
/ LD585 / UD4005 / UD4015 / UD4025 / UD5005 /
UD5015 / UD5020 / UD5025 / UD5520 / UD5705
/ UD5720 / UD5725 / LD452 / LD552 / LD400E /
LD403 / LD503 / UD4003 / UD5003 / UD5800 /
PD530 / PD6980 / LD461H / LD561H /

SEC_ATSC / SEC_TC / ALPS_TC / SI_TCS / SI_T2 EU/AU(DVB-TC/DVB-T) :

TUNER SEC_TC
/ SEC_ISDB / SEC_ATC / SI_ATC / SI_TW SEC_TC

PBA / SUWON / SESK / SEH / SERK / SDMA_AU /

SDMA_NZ / SDMA_SG / SEIN / SAVINA / SIEL_C /
Ch Table
SIEL_N / TTSEC / TSED / TSE / IRAN / SESK-T2 /
SUWON-T2 / INL

P-S-C-BK / P-S-R-BK / P-S-BK / P-S-B-BK / P-T-R-

BK / P-T-C-BK / P-T-W-Bn / P-T-W-Gy / P-T-M-Bn
/ P-T-C-Gy / P-T-R-Gy / P-W-Milk / P-W-M-Wt /
P-W-D-Gy / P-W-Vio / L-S-C-BK / L-S-R-BK / L-S-
BK / L-S-B-BK / L-T-R-BK / L-T-C-BK / L-T-W-Bn /
LD503 : L-S-BK
Front Color L-T-W-Gy / L-T-M-Bn / L-T-C-Gy / L-T-R-Gy / L-W-
UD5003 : U-S-BK
Milk / L-W-M-Wt / L-W-D-Gy / L-W-Vio / U-S-C-BK /
U-S-R-BK / U-S-BK / U-S-B-BK / U-T-R-BK / U-T-C-
BK / U-T-W-Bn / U-T-W-Gy / U-T-M-Bn / U-T-C-Gy
/ U-T-R-Gy / U-T-BL-M / U-T-BK-M / U-TC-L-M /
U-W-Milk / U-W-M-Wt / U-W-D-Gy / U-W-Vio

4-38
 4. Troubleshooting

Control
Factory Name Data Range Use
EDID

EDID ON/OFF OFF

EDID WRITE ALL …

EDID WRITE PC … Download EDID data to EEPROM.

1. Set "ON" of EDID ON/OFF
EDID WRITE HDMI … 2. Go EDID WRITE ALL and Push
EDID WRITE HDMI1 … Enter or  button.
3. If You See Success message, SET
EDID WRITE HDMI2 … "OFF" of EDID ON/OFF

EDID WRITE HDMI3 … Case of HDMI 1.2 EDID Service

EDID WRITE HDMI4 … 1. Go EDID VER and Set HDMI 1.2
2. Go EDID PORT and Select HDMI
EDID VER … port

EDID PORT …

EDID WRITE DVI …

Sub Option

Select Setting of UART port.

RS-232 Jack UART Debug/Logic/UART
Initial value is "UART"

Select Watchdog.
Watchdog ON ON/OFF
Initial value is "ON"

Watchdog Count.
WD Count 0 255
Read Only.

Select Dimming Type.

Dimm Type EXT fixed
Initial value is "EXT"

Select LVDS format.

Lvds Format JEIDA JEIDA/VESA/19INCH 19/22/27inch :"VESA"
other inch :"JEIDA"

OTN Server Type operating operating/development

OTN Test Server OFF OFF/ A/B/C/D/E Zone

OTN Support ON ON/OFF

OTN Reset not modifyed

OTN Duration OFF ON/OFF

OTN Fail Test OFF ON/OFF

View Log not modifyed

4-39
4. Troubleshooting

LD400 : 72
LD45*/LD48*/LD5** : 36
KEY SENSITIVITY 36 0~255 UD40** : 38 UD50** : 41
UD55**/UD57** :36
TA350 : 32 TA550 : 34

Hotel Option
Hotel Hospitality OFF
Shop Option
Shop Mode OFF ON/OFF
Exhibition Mode OFF ON/OFF
Sound
High Devi OFF ON/OFF
Carrier_Mute OFF ON/OFF
Speaker Delay Normal 10 0~255 Audio delay for Lipsync
Control for ATV sound of stereo
Pilot Level High Thld 0x28h 0x00~0xff
/multiplex
Control for ATV sound of stereo
Pilot Level Low Thld 0x10h 0x00~0xff
/multiplex
Speaker EQ ON ON/OFF Control for sound precision

SVC
Factory Name Data Range Use
Test Pattern

Panel Auto Setting

Panel Display Time 0Hr

Logic Usb D/L off

Tuner Status

T-CON Usb Download

Set ONSub micom upgrade

MICOM UPGRADE off ,after upgrade Main Micom
(over 5 minutes)

BT ADDRESS 0

BT UPGRADE

SVC Reset

Test Pattern

"Test for Input of Scaler.

OFF/White/Black/Red/Green/Blue/
Pattern Sel OFF If you can see pattern well, there
Cross/OneDot/ColorBar/GrayStep
is problem at input of Scaler."

Logic Pattern Sel … Not modified

Logic Level Sel … Not modified

TUNER STATUS

DVB

ISDB-T

DVB

SNR Not modified

BER Not modified

Singal Strength Not modified

4-40
 4. Troubleshooting

Bandwidth Not modified

Frequency Not modified

LNA Status Not modified

FFT Not modified

Modulation Not modified

Code Rate Not modified

GI Not modified

Hier Modulation Not modified

Frequency Offset Not modified

Timing Offset Not modified

AGC Not modified

UCB Not modified

PLL Type Not modified

DEMOD Type Not modified

TPS LOCK Not modified

RS Lock Not modified

SSI Not modified

SQI Not modified

ISDB-T

FFT Size_1 Not modified

Guard Interval_1 Not modified

Freq. Offset_1 Not modified

SNR_1 Not modified

IF AGC_1 Not modified

TMCC Lock_1 Not modified

TS Packet_1 Not modified

Master Lock_1 Not modified

A_Modulation_1 Not modified

A_Code Rate_1 Not modified

A_Timer InterLeave_1 Not modified

A_Segments Num_1 Not modified

A_Ber_1 Not modified

B_Modulation_! Not modified

B_Code Rate_1 Not modified

B_Timer InterLeave_1 Not modified

B_Segments Num_1 Not modified

B_BER_1 Not modified

C_Modulation_1 Not modified

C_Code Rate_1 Not modified

C_Timer InterLeave_1 Not modified

C_Segments Num_1 Not modified

4-41
4. Troubleshooting

C_BER_1 Not modified

ADC_WB
Factory Name Data Range Use
ADC

AV Calibration Success Success / Failure

Comp Calibration Success Success / Failure

PC Calibration Success Success / Failure

HDMI Calibration Success Success / Failure

ADC Target

1st_AV_Low 64 0 ~1020

1st_AV_High 880 0 ~1020

1st_AV_Delta 2 0~7

1st_COMP_Y_Low 64 0 ~1020

1st_COMP_Cb_Low 512 0 ~1020

1st_COMP_Cr_Low 512 0 ~1020

1st_COMP_Y_High 940 0 ~1020

1st_COMP_Cb_High 512 0 ~1020

1st_COMP_Cr_High 512 0 ~1020

1st_COMP_Delta 2 0~7

1st_PC_Low 4 0 ~1020

1st_PC_High 1004 0 ~1020

1st_PC_Delta 2 0~7

2nd_ACH_Low 4 0 ~124

2nd_ACH_High 940 0 ~1020

2nd_PC_Low 4 0 ~124

2nd_PC_High 940 0 ~1020

2nd_Delta 2 0~7

ADC RESULT

1st_Y_GH 0 0 ~ 511

1st_Y_GL 0 0 ~ 255

1st_Cb_BH 0 0 ~ 511

1st_Cb_BL 0 0 ~ 255

1st_Cr_RH 0 0 ~ 511

1st_Cr_RL 0 0 ~ 255

2nd_R_L 0 0 ~ 255

2nd_G_L 0 0 ~ 255

2nd_B_L 0 0 ~ 255

2nd_R_H 0 0 ~ 255

2nd_G_H 0 0 ~ 255

2nd_B_H 0 0 ~ 255

WB Mode

4-42
 4. Troubleshooting

Sub Brightness 128 0 ~ 255

R_Offset 128 0 ~ 255

G_Offset 128 0 ~ 255

B_Offset 128 0 ~ 255

Sub Contrast 128 0 ~ 255

R_Gain 128 0 ~ 255

G_Gain 128 0 ~ 255

B_Gain 128 0 ~ 255

Movie R Offset 512 0 ~ 1023

Movie B Offset 512 0 ~ 1023

Movie R Gain 512 0 ~ 1023

Movie B Gain 512 0 ~ 1023

4-43
4. Troubleshooting

4-4. White Balance - Calibration

4-4-1. White Balance -Calibration

1. Calibration AV Calibration
Comp Calibration
PC Calibration
HDMI Calibration

4-4-2. White Balance - Adjustment

(low light) (hight light)

Sub Bright Sub Contrast

3. W/B
R offset R gain
G offset G gain
B offset B gain

(W/B adjustment Condition refer next page)

4-44
 4. Troubleshooting

4-5. White Ratio (Balance) Adjustment

1. You can adjust the white ratio in factory mode (1:Calibration, 3:White-Balance).
2. Since the adjustment value and the data value vary depending on the input source, you have to adjust these in CVBS,
Component 1 and HDMI 1 modes.
3. The optimal values for each mode are configured by default. (Refer to Table 1, 2)
It varies with Panel’s size and Specification.
- Equipment : CS-210
- Pattern: MIK K-7256 #92 "Flat W/B Pattern" as standard
- Use other equipment only after comparing the result with that of the Master equipment.

- Set Aging time : 60min

- Calibration and Manual setting for WB adjustment.

HDMI : Calibration at #24 Chessboard Pattern Manual adjustment #92 pattern (720p)
COMP: Calibration at #24 Chessboard Pattern Manual adjustment at #92 pattern (720p)
CVBS: Calibration at #24 Chessboard Pattern Manual adjustment at #92 pattern (PAL)

- If finishing in HDMI mode, adjustment coordinate is almost same in AV/COMP mode.

- White Balance Manual Adjustment
Adjustment Coordinate
P-Mode
x y Y (Luminance) T(K) + MPCD
-
H/L 272 278 12,000 (±0)
CVBS (Sub_CT:130)
(PAL) L/L 272 278
12.6cd/m 2
12,000 (±0)
(3.7 Ft)
-
H/L 272 278 12,000 (±0)
COMP (Sub_CT:130)
(720P) L/L 272 278
13.0cd/m 2
12,000 (±0)
(3.8 Ft)
-
H/L 272 278 12,000 (±0)
HDMI (Sub_CT:130)
(720P) 13.0cd/m 2
L/L 272 278 12,000 (±0)
(3.8 Ft)
- Adjustment Specification
White Balance : High light (±1), Low light (±3)
Luminance : High light (Don’t care), Low light (±0.2 Ft/L)

4-45
4. Troubleshooting

4-6. Servicing Information

4-6-1. USB Download Method (Main SW & e-Manual)
Samsung may offer upgrades for TV’s firmware in the future.
Upgrades will be possible by connecting a USB drive to the USB port located on your TV.

1. Insert a USB drive containing the firmware (T-MSU4DEUC)

upgrade into the USB port on the rear of the TV.
2. Press the MENU button to display the menu. Press the or
button to select "Support", then press the ENTER button.
3. Press the or button to select "Software Upgrade", then
press the ENTER button to select "By USB". The message
"Scanning for USB. It may take up to 1 minute." is displayed.
4. The message "Upgrade version XXXX to version XXXX?
The system will be reset after upgrade." is displayed.
Press the or to select the "OK", then press the ENTER
button.
Please be careful to not disconnect the power or remove the
USB drive while upgrades are being applied. The TV will turn off
and turn on automatically after completing the firmware upgrade.
Please check the firmware version after the upgrades are
complete. When software is upgraded, video and audio settings
you have made will return to their default (factory) settings.
We recommend you write down your settings so that you can
easily reset them after the upgrade.

4-46
 4. Troubleshooting

4-7. How To Upgrade Sub Micom

4-7-1. Sub S/W (in Factory mode)
If you don't have DDC Manager, Use this method.
1. Into the Factory Mode.
2. Select "SVC". (Use r button.)
3. Select "MICOM UPGRADE off". (use r button.)
4. If message change from "off" to "wait", TV is upgrading Sub S/W. (It takes about 5 min.)
5. If update completes, TV set will booting automatically.

4-47
4. Troubleshooting

4-8. Mechanical diagram

4-8-1. UD5003_40003

22D5003 40D5003 19D4003 26D4003 32D4003

Set with Stand
(W x D x H)
515.8 x 124 x 350.0 943.8 x 219.4 x 603.5 447.2 x 124 x 312.4 624.0 x 169.4 x 418.3 756.4 x 182.4 x 498.1
Size
[mm] Set without
Stand 515.8 x 39.9 x 315.6 943.8 x 51.0 x 561.4 447.2 x 39.9 x 277.8 624.0 x 45.1 x 377.2 756.4 x 47.8 x 454.0
(W x D x H1)
Set with Stand 3.5 11 2.9 4.4 7.2
Weight
[Kg] Set without
Stand
3.4 9.6 2.8 4.1 6.3

4-8-2. LD503_403

40D503 32D403 32D400

Set with Stand
(W x D x H)
967.0 x 199.9 x 626.1 784.4 x 181.9 x 542.3 784.4 x 182.4 x 545.3
Size
[mm] Set without Stand
(W x D x H1)
967.0 x 107.1 x 586.3 784.4 x 103.3 x 502.9 784.4 x 88.8 x 502.9

Weight Set with Stand 13.25 8.66 9.2

[Kg] Set without Stand 11.6 7.65 8.1

4-48
 4. Troubleshooting

4-9. PCB diagram

4-9-1. PCB layout
„„ Flip (UE40D5003BW*** / UE26/32D4003BW*** / LE40D503F7W*** / LE32D400E1W*** / LE32D403E2W***)

PCB

4-49
4. Troubleshooting

TOP BOTTOM

INNER 1 INNER 2

4-50
 4. Troubleshooting

„„ Non Filp (UE22D5003BW*** / UE19D4003BW***)

PCB

4-51
4. Troubleshooting

TOP BOTTOM

INNER 1 INNER 2

4-52
 4. Troubleshooting

„„ SMPS_UD4003 / 19"
Model / Inch CODE P/N
UD4003 / 19" BN44-00467A PD22A0_BPNV

„„ SMPS_UD4003 / 26"
Model / Inch CODE P/N
UD4003 / 26" BN44-00471A PSLF800A03G

4-53
4. Troubleshooting

„„ SMPS_UD4003 / 32"
Model / Inch CODE P/N
UD4003 / 32" BN44-00472A PSLF800A03S

„„ SMPS_UD5003 / 22"
Model / Inch CODE P/N
UD5003 / 22" BN44-00467A PD22A0_BPNV

4-54
 4. Troubleshooting

„„ UD5003 / 40"
Model / Inch CODE P/N
UD5003 / 40" BN44-00473A PSLF121A03S

4-55
4. Troubleshooting

„„ SMPS_LD400 / 32"
Model / Inch CODE P/N
LD400 / 32" BN44-00438A PSIV121411A

„„ SMPS_LD403 / 32"
Model / Inch CODE P/N
LD403 / 32" BN44-00468A PSIV121411C

4-56
 4. Troubleshooting

„„ SMPS_LD503 / 32"
Model / Inch CODE P/N
LD503 / 32" BN44-00469B IV40F1_BHS

4-57