So my friend bought this LG 50" LCD/LED TV 2yrs ago, and it crapped out about a week ago.
He bought a new TV and gave me this one, so I dug in and found out what was wrong with it...
I started with the flashlight test. It passed this test meaning the screen displays an image, but the backlight circuit failed.
I laid it down, and started disassembly...
With the back cover removed, I tested PSU and LED driver circuit. Both checked out fine.
Next I pulled the LCD screen and the diffuser panels, and found this.. Hmmmmmmm......
If I'm not mistaken I'd say this LED strip looks a little burnt...
Yep, I'd say that LED strip is KFC extra crispy..
I tested the remaining LED strips. Half of them work the other half don't.
Next order of business is to order a LED strip repair kit...
It costs about $60-$100 for the kit depending on where you buy it.
This is a very common problem with LG LED TV's made over the last few years.
LED strips that are burnt like this can be attributed to the backlighting being set at 100%.
This can happen to any and all LED TV's regardless of price and/or brand name or model.
Check your backlight settings if you want your LED TV to last, and turn them down if they're at or near 100%.
I'll post pics of the TV after I get the LED kit installed.
He bought a new TV and gave me this one, so I dug in and found out what was wrong with it...
I started with the flashlight test. It passed this test meaning the screen displays an image, but the backlight circuit failed.
I laid it down, and started disassembly...
With the back cover removed, I tested PSU and LED driver circuit. Both checked out fine.
Next I pulled the LCD screen and the diffuser panels, and found this.. Hmmmmmmm......
If I'm not mistaken I'd say this LED strip looks a little burnt...
Yep, I'd say that LED strip is KFC extra crispy..
I tested the remaining LED strips. Half of them work the other half don't.
Next order of business is to order a LED strip repair kit...
It costs about $60-$100 for the kit depending on where you buy it.
This is a very common problem with LG LED TV's made over the last few years.
LED strips that are burnt like this can be attributed to the backlighting being set at 100%.
This can happen to any and all LED TV's regardless of price and/or brand name or model.
Check your backlight settings if you want your LED TV to last, and turn them down if they're at or near 100%.
I'll post pics of the TV after I get the LED kit installed.
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