I see that there is power to the main road because there is a light in the optical input. go into setttings and change to optical I put a new main board/power board in and it made no difference. The t-con in this tv is attached to the backlight control board with ribbons at the bottom of the tv. What should I check next. I don't want to order a T-con if that is not the issue.
SOURCE: sharp lc 20sh1e lcd tv funny picture
Do you still have this, I need a part myself and having trouble sourcing parts?
Mine immediately goes into standby mode and the screen just shows a white flash. I'm sure its just a power issue.
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SOURCE: Tv works if the backlight stay min. but pickture
It is the power supply and if you replace the bad or bulged electrolytic caps on the power supply, or you can buy a new power supply at www.partstore.com.
SOURCE: sharp Lc-26sb24u white screen with sound
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.
SOURCE: Sharp Aquos LC-C3237U no picture backlight OK green light on
check if their is a signal on voltages around 3.3v at the inverter board if none their is a problem in the board which is in the processor.
SOURCE: Sharp Aquos LCD TV Error Codes power flashes twice and opc flashes 5 times - What does this mean?
Sure - but you need to find out what the new error codes stand for and be guided accordingly. You might want to check on the Sharp web site.
Your t con board might also have gone south.
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