#1
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2019 LG 55 inch TV model 55UK6090PUA sound only. No video
Tv turns on with sound but no video. Backlight working.
Last edited by pac.attack76; 04-19-2024 at 09:19 AM. |
#2
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If there are at least 2 ribbon cables going from the T-con board to the screen, try disconnecting them one at a time and see if you then get 1/2 picture when you turn on the set.
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#3
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I'll try it and let you know.
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#4
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Going to open it up today and check it out. Will post what I find in a few hours.
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#5
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2 cables run to the screen. Removed one and got this:
Last edited by pac.attack76; 04-19-2024 at 09:18 AM. |
Audiokarma |
#6
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There was a 50+ set in the dumpster at the free public recycling bin yesterday.
(The guy who runs the place really just likes computer stuff- presumably for gold harvesting.) He throws the TV's away! I couldn't get it out. I was thinking, where are you guys when I need you! Ha Ha.
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#7
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It looks like you might have a bad board or two, someone once gave me a 55" LG Plasma 3D Smart TV that would give a blank screen when powered up, and it turned out to be a bad board, I replaced it with one someone was selling on eBay that was parted out of a working set that someone broke the screen on (with a Wii controller) and its been working fine since then.
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#8
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Quote:
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#9
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When you removed one of the cables did you have a source connected to the set ? You should get half an image, not just a light screen. Unfortunately, getting half an image during this test usually means the screen is bad.
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#10
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I'll double check. So on one cable, or the other, I should see half? I did try the menu, buttons on remote, etc. And saw nothing.
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Audiokarma |
#11
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On mine (granted mine was a 2012 vintage set) it only had one T-con board and that was all I had to replace in mine to get it running.
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#12
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I cannot get a single pic, half screen or otherwise on this. No sound either. Not sure what to do at this point
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#13
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You should have sound.
Try connecting an oscillator to the A/V inputs.
Here's a link to some helpful troubleshooting tips: https://fliphtml5.com/osspz/lhwm/basic That link used to be available as a downloadable pdf file but I guess it got removed.
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#14
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I don't have an oscillator. Is it possible screen is bad or should I order the replacement board and take a chance?
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#15
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Do you have a vcr that you could connect to the A/V inputs to get sound?
You might be stuck on A/V inputs. There is also a part 2 to the advance troubleshooting techniques: https://pdfcoffee.com/qdownload/lcd-...-pdf-free.html
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Audiokarma |
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