Samsung UA23H4003 LED TV - How to check the fault symptom, firmware upgrade, T-Con board fault symptoms

T’Con board check, software update, troubleshooting – Samsung LED TV UA23H4003AR

General troubleshooting

Check List for Initial operation

> AC Power Cord connected to the TV and the wall receptacle. > Standby Power/IR Indicator LED is turned On. > If Power/IR Indicator is not on check 14P power cable is connected and for correct Standby Voltage from SMPS to Main. Also check Jog Function Cable. > Power turned On with Jog Function or Remote. > Power on command from main Board to SMPS. > Power/IR Indicator Flashes. > Panel Back Lights are turned On. - If no Back-lights, unplug AC Power Cord, unplug 14 pin connector to SMPS, plug in AC Power Cord, Back light should come on. Check Main Board operation for error. > Power/IR Indicator goes off. > Picture or banner is displayed. * If nothing is displayed , check the LVDS cable.

How to know it is from Main Board or T-Con when some problems happen
1. No Picture : Backlight is on, but there is no picture and LED indicator in front of TV is blinking.
- Check the LVDS Cable connection. If still problems, change the T-Con Board and then Main Board step by step.
2. Picture distortion : Enter the service mode => Choose ‘SVC’ => Check the ‘internal pattern.’
Enter ‘Service Mode.
3. Choose ‘SVC.’
4. Choose ‘Test pattern.’
5. Select the each pattern and then check all pattern is OK or not.

How to Check Fault Symptom - No Power and No Video

* The LEDs on The front panel do not work when connecting The power cord.
* The SMPS relay does not work when connecting The power cord.
* The units appears to be dead.

Check if 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:
* Check the internal cable connection status inside the unit.
* Check the fuses of each part.
* Check the output voltage of SMPS.
* Replace the Main Board.

If you replace the main board with new one, change the factory option as well.
The options you must change are "Type".

Main board and power board voltage chart

Software Upgrade

Software Upgrade can be performed by downloading the. latest frmware from samsung.com to a USB memory device.

• Current Version - The software already installed in the TV.

Software is represented as ‘Year/Month/Day_Version’.

How to Check the Software Version

„ Use the Main Menu

1. Click the "MENU" key in remote controller.

2. Select "Support" menu.

3. Locate the menu cursor "Software Upgrade" menu.

4. Click the "INFO" key.

 Check the Main SW and Micom version.

You can check the software version using the factory mode too.

How to Upgade Software and Micom
Insert a USB drive containing the frmware upgrade downloaded from samsung.com into the TV. Please be careful not to 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 frmware upgrade. Please check the frmware version after the upgrades are complete (the new version will have a higher number than the older version). 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 before beginning frmware update. After update is completed, restore your previous settings.

Main Software Upgrade

1. Save the firmware folder to the root directory of a USB drive.

- Connect the USB.

2. Click the "MENU" key in Remote Controller.

3. Select "Support" menu.  Select "Software Upgrade"

4. Click the "ENTER" key.

5. Click the "ENTER" key.

- Wait for upgrade complete.

- Check the Software Version.

How to enter service mode to Samsung Televisions 

Universal remote control codes to check with Samsung Televisions

0030 0049 0050 0066 0076 0101 0102 0119 0143 0152 0154 0166 0181 0195 0209 0217 0240 0307 0318 0365 0379 0414 0421 0488 0492 0601 0624 0637 0642 0827