Samsung UE40H5003AW Service Manual page 21

4. Troubleshooting
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.
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2. Picture distortion : Enter the service mode
Enter 'Service Mode.'
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• If you do not have Factory remote control
Power OFF
• If you have Factory remote control
INFO
3.
Choose 'SVC.'
4. Choose 'Test pattern.'
5. Select the each pattern and then check all pattern is ok or not.
Option
Control
Debug
SVC
ADC/WB
Advanced
Pattern Status is
OK
NG
4-2
⇢ Choose 'SVC' ⇢ Check the 'internal pattern.'
Info MENU
Factory
Test Pattern
Change the
Main Board
Panel and T-Con Board
Mute Power On
Pattern Sel
Test Pattern is made by the NOVATEK IC
We guess front of NOVATEK IC has problem.
We guess back of NOVATEK IC has problem.