How to detect faulty T’Con boards and to repair – Samsung LCD TVs
Samsung UE** or LE** series LCD TVs
How to recognize the T’Con defects
The T-Con Board is the smallest board found inside the LCD TV and is found in LCD TV's only.
The
function of T-con board is to control logic signal of gate and source
for driving TFT LCD. The T-Con Board ‘Timing Control Board’ is sometimes
referred to other names, such as ‘Controller Board’ or ‘Control
Board’.
Common faults are:
White Display, No display, Double image, Display distortion (black and white vertical bars on the screen).
Multiple vertical/horizontal lines across the screen.
* Vertical blocks, horizontal blocks or combination of both.
* Color problem.
* Picture noise.
Assure
that the fault is with real T’Con board, and not the display panel.
Check
if the picture problem is variable or static.
A]
Lines are moving or blinking or staying on some area of the picture.
B]
Picture noise is keeping move down and no changing pattern.
C]
The color picture problem will appear immediately or it is getting more visible
in short time. Also, it can appear from
normal picture continuously to picture problem in a short time.
D]
Vertical block is at the same place, but colored lines within this block can be
moving or blinking.
E]
more vertical blocks.
How to replace/repair the T’Con
If
the T’Con board has the Heat sink, you should detach it from the old T’Con and
to add the new T’Con again.
