Re: Vestel shuts off randomly



Hello,

if you mean the blue 47nF cap in the picture with a green tick, I checked it and measured perfectly fine.



I replaced the polyester capacitors I mentioned in my previous post because they measured bad and since that it hasn't failed. Although being aware of how tricky this fault is, I'll never be confident, not even having tested it for 3 days.

Regards....

Re: Vestel shuts off randomly

Hello,

I've been testing the TV for almost 3 days and worked fine. Hope it lasts a long time. Thank you very much for your help.

Regards.

Re: Vestel shuts off randomly



You are right sir, I miss the dot and I feel stupid. It says .22uF. Now the real values aren't that far although I'd still tell they are bad.

Thank you....

Re: Vestel shuts off randomly



Hello,

I've checked the capacitors marked in the picture, the two ones with the red cross were far out of specification (22uF caps, one 163 nF, other one 194nF), so I'm replacing both and trying to see if I can make the TV fail again.

If you have any other suggestion, please let me know.
Thank you....

Hi friends,

I'm tired of this LCD TV that doesn't stop breaking. This time, I can't troubleshoot this. The TV has a Vestel PSU 17PW22-4 and main board 17MB12-3. The problem is it goes to stand by state randomly, it's a very hard problem to replicate although it seems to happen more often when the TV has been resting without use. Some time I've seen the LED blink several times after shutting down, but not always.

I've checked everything I can think of. I reckon the PSU is good and so they are the inverter board and tubes. If I disconnect the inverter board from the...

Re: New Members - please post your introductions here

Hello everybody, a newbie on board. Willing to progress in my electronic component level repair knowledge.

Greetings.