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Electronics => Repair => Topic started by: NaLogo on May 02, 2020, 07:34:23 am

Title: LG 37LF2500-ZA - Display only showing a few horizontal lines
Post by: NaLogo on May 02, 2020, 07:34:23 am

Hey everyone!

I'm somewhat new to repairing things but I'd love to see if I can, with your help, get this TV working properly again.
This is a 10-year-old LG 37LF2500-ZA and the issue we're looking at is that the screen only shows a few horizontal lines that look like... remains of the OSD.

I've checked, cleaned and re-seated the ribbon cables connecting the mainboard to the display driver board as well as the ones connecting the display driver board to the display - but that didn't help.

Replacing any of the boards or the display is probably not worth it as I can most likely get a similar TV used for a lot less money... so I'm kind of hoping that some of you have an idea that would not involve buying new boards. :)

Edit: Okay, I could buy a new display driver board. They cost next to nothing on AliExpress. Would that be worth it or is it more likely that the display is just screwed up?

Title: Re: LG 37LF2500-ZA - Display only showing a few horizontal lines
Post by: pe0hm on May 11, 2020, 09:16:05 pm

I have had the same problems with a similar LG. I swapped the driver board but the problem stayed. So I think this problem could very well be in the panel itself.

Title: Re: LG 37LF2500-ZA - Display only showing a few horizontal lines
Post by: NaLogo on May 12, 2020, 06:04:05 am

Quote from: pe0hm on May 11, 2020, 09:16:05 pm

I have had the same problems with a similar LG. I swapped the driver board but the problem stayed. So I think this problem could very well be in the panel itself.

Ah damn.

Well, I've bought a display driver board when I posted so I'll give that a shot anyway. I'll update this with the results. :)