|
#1
|
|||
|
|||
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
|
||||
|
||||
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.
|
#3
|
|||
|
|||
I'll try it and let you know.
|
#4
|
|||
|
|||
Going to open it up today and check it out. Will post what I find in a few hours.
|
#5
|
|||
|
|||
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
|
|||
|
|||
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.
__________________
|
#7
|
|||
|
|||
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.
|
#8
|
|||
|
|||
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
__________________
|
#9
|
|||
|
|||
I have numerous ways of connecting to av inputs. I was using the remote changing modes but didn't get anything
|
#10
|
|||
|
|||
You should be able to get audio either off air or thru A/V jacks.
I'm assuming all your PS voltages are there. I think you have a main board failure or EEPROM corruption. Did you read thru the Part 2 download link I sent you? There are some items that I think address your model.
__________________
|
Audiokarma |
#11
|
|||
|
|||
Yes, I'm gonna perform one more test, then I'm gonna replace the board and see what happens.
|
|
|