Hello all,
I bought a tv LG 55UH615 that has no picture but sound and backlight working. As an amateur I though obviously that it was the TCON board so I bought one, but still no picture with the new one. I was about to buy a main board, but after a closer look I discovered there is a short circuit somewhere on the panel's right driver board (the one on the left, when looking from the back of the tv). Please look the attached video where I test for shorts on ceramic caps. There is no apparent damage, corrosion or traces of water, the COF looks fine, no traces of heat or burns...
What can I do about it? Do I remove caps one by one, until the multimeter hopefully stops beeping ? Then I replace the bad cap(s)? If so, how to find their value if they are broken?
Or is it most likely a problem with a COF, so I cannot fix it?
I saw some youtube videos of people fixing their panel driver board by replacing damaged caps, but it was caused by water/corrosion damages so it was obvious, which is not my case.
Thanks !
I bought a tv LG 55UH615 that has no picture but sound and backlight working. As an amateur I though obviously that it was the TCON board so I bought one, but still no picture with the new one. I was about to buy a main board, but after a closer look I discovered there is a short circuit somewhere on the panel's right driver board (the one on the left, when looking from the back of the tv). Please look the attached video where I test for shorts on ceramic caps. There is no apparent damage, corrosion or traces of water, the COF looks fine, no traces of heat or burns...
What can I do about it? Do I remove caps one by one, until the multimeter hopefully stops beeping ? Then I replace the bad cap(s)? If so, how to find their value if they are broken?
Or is it most likely a problem with a COF, so I cannot fix it?
I saw some youtube videos of people fixing their panel driver board by replacing damaged caps, but it was caused by water/corrosion damages so it was obvious, which is not my case.
Thanks !
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