Troubleshooting LG 65UF772V

[M.Beier]

Hi dear panel and fellow community members,
Lately my close to 5 year old LG 65" with IPS panel decided to die on me... My son was watching some cartoon and I thought my wife had turned off due dinner, yet later that friday night, I found out it simply wouldnt turn back on..

The power-LED in the bottom flashed 4 times, and nothing came onto the screen... I cannot tell if any sound came, as I've never used the speaker in the TV, always optical out, and no sound through this source.

I consider the TV to be fairly good, the IPS truely works it magic on the colours... I was hoping to give it a shot...

I opened the TV, took out the power supply, measured all diodes, all only 1-way, it checked out... The caps I could only visually inspect, none popped, none leaked - but measuring them is tricky at home..

So... I decided to order a new power supply from ebay - this had several weeks shipping, which I couldnt wait for - eventually I just bought a new 82" for the livingroom...
The powersupply came much earlier than estimated on ebay, however... In a freakin' pizza tray and wrapped in highly static boble wrap.. (Spanish clown..)
Gave it a shot - same result...

Any other components worth trying to swap? Hope there might be some advice for this long-shot

[xfox]

Re: Troubleshooting LG 65UF772V

I would check shortened caps on lcd board (tiny ceramic ones)

[budm]

Re: Troubleshooting LG 65UF772V

1) Use 'GO ADVANCED' to attached the ggod clear pictures of the whole backside of the TV showing all the boards.

2) What kind of Voltage measurement have you done so far and what are the results?