Hi All,
I need some help with this one please. I am attempting a repair on the backlight. TV turns on and flashes the LG logo so stripped it down and found one faulty LED. Replaced it and tested on an LED tester and the strip was good. Put it back onto the PSU and it lasted about 20 seconds before going out again. Same LED had blown. Changed it for another type of SMD one (same voltage) and it seemed fine. Put the TV back together but it was quite dim. Noticed it was in power save mode so turned it off and the screen was bright. Left it on for half an hour only to come back to the same bloody LED blown. Seems odd that this is the 3rd LED in the same place in the same strip to blow. I've had similar issues on another TV and found a mod to reduce the current going to the backlight and this sorted that but with this PSU board (Vestel EAX64905501) I'm not sure how to do it.
Any advice guys?
I need some help with this one please. I am attempting a repair on the backlight. TV turns on and flashes the LG logo so stripped it down and found one faulty LED. Replaced it and tested on an LED tester and the strip was good. Put it back onto the PSU and it lasted about 20 seconds before going out again. Same LED had blown. Changed it for another type of SMD one (same voltage) and it seemed fine. Put the TV back together but it was quite dim. Noticed it was in power save mode so turned it off and the screen was bright. Left it on for half an hour only to come back to the same bloody LED blown. Seems odd that this is the 3rd LED in the same place in the same strip to blow. I've had similar issues on another TV and found a mod to reduce the current going to the backlight and this sorted that but with this PSU board (Vestel EAX64905501) I'm not sure how to do it.
Any advice guys?
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