Trying to keep this TV going for my sister. About a month ago I posted when the set would not turn on. See thread here:
https://www.badcaps.net/forum/showthread.php?t=75358
It seems to have an inverter or back light problem now.
The TV turns on fine now but yesterday the top 1/3rd of the screen turned pink. At times the back light would flicker and then turn off, had sound and a flashlight test showed the pic was still there. Turning it off and on would bring back the back light.
I picked it up today. Plugged it in and the top 1/3rd was indeed pink. I pulled the power plug a few times and the whole screen returned to normal, no pink. After a while it started to flicker then back light turned off. It did that a few times but it's been running flawlessly for a couple of hours now. Hard to figure out when it's working.
Visually there are no signs of a problem. Transformers look normal. Tapping or pressing around on the board doesn't make it stop or start to flicker.
Anyone have any thoughts or tips for where I might start looking?
The power/inverter board is number BN44-00264A. The schematic is here: https://www.badcaps.net/forum/attach...3&d=1434074295
https://www.badcaps.net/forum/showthread.php?t=75358
It seems to have an inverter or back light problem now.
The TV turns on fine now but yesterday the top 1/3rd of the screen turned pink. At times the back light would flicker and then turn off, had sound and a flashlight test showed the pic was still there. Turning it off and on would bring back the back light.
I picked it up today. Plugged it in and the top 1/3rd was indeed pink. I pulled the power plug a few times and the whole screen returned to normal, no pink. After a while it started to flicker then back light turned off. It did that a few times but it's been running flawlessly for a couple of hours now. Hard to figure out when it's working.
Visually there are no signs of a problem. Transformers look normal. Tapping or pressing around on the board doesn't make it stop or start to flicker.
Anyone have any thoughts or tips for where I might start looking?
The power/inverter board is number BN44-00264A. The schematic is here: https://www.badcaps.net/forum/attach...3&d=1434074295
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