Question about Televison & Video
Black screen on my TCL 55 inch. Common cause is the T-Con board but my 55s405teaa service model doesnt appear to have one after taking all the back panels off. Wondering what modal could be the cause of the black screen. Powers up and has sound. Did a factory reset with no help.
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Posted on Jan 02, 2017
SOURCE: hitachi 51g500 screen gone black
Yes worth repairing but not a crt problem. the crt's are powered by a high voltage transformer and sometimes it's caps that goes bad and in turn knocks out the crt's. but they are ok, it's in the high voltage line.
Posted on Aug 12, 2007
change the convergence ICs also check the resistors right next to the ICs as 1 or 2 of them may be open as well.
Posted on Mar 28, 2008
Hi my name is Roety,
I can help you with your issue ,
Most likey you need the convergence ICs replaced.
A repairman would charge about $350 to replace them
Voltage checks and a visual would be needed to determine exactly what is bad in your TV
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Posted on Nov 20, 2009
You will get a white screen when you unplug the t-con from the main board. Doing so removes power to the LCD panel. Verify that all of your voltages from the power supply are correct. If they are, I'd look at the t-con board. It sounds like there is a problem with the t-con that is pulling down the main board.
Posted on May 11, 2012
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TRY T-CON TEST PATTERNS TO ELIMINATE MAIN BOARD
search the model number for t-con test paatterns in service mode
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