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Old 04-30-2018, 09:47 PM   #1
thuss
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Join Date: Jul 2012
City & State: london
My Country: uk
I'm a: Knowledge Seeker
Posts: 205
Default 55ub850v no picture

Hi

I could do with some advice.

Ive got a 55ub850v tv which turns and stays on, with backlights and sound but no picture.

The fuse on the the tcon has 11.78v on both sides.

There is also voltages on I assume test points at the bottom right hand corner of the tcon. There is also voltage present on the bottom left corner which fluctuate.

I have checked the (as much as I can) the components on the screen boards. They seem fine.

The psu output voltages are fine. The chips on the tcon is not very warm- whilst the main chip on the main board is hot-ish.

I was wondering if anyone could advise on what to check next or what they suspect is faulty?

I was going to change the main board.

Thanks in advance
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