Vizio VO47LF Random flickering

[meehd0]

Hey everyone. I been watching these forums for quite awhile now. Anyways, I have a Vizio LCDTV VO47LF with flickering problems. Theres quite a few videos on youtube with other people with the same issue.

http://www.youtube.com/watch?v=HFqib...eature=related

http://www.youtube.com/watch?v=ttRO7Bq5Y9Q

I was wondering if anyone have any idea what might be the problem? I have checked all the capacitors and they seem good. The caps on the PSU are chemicon. I have also measured the outputting voltage from the power supply and they seem to be in check.

I also checked for cold solder joints and there wasn't any, but I still reflowed most of the pads anyways.

Thanks

[seanc]

Re: Vizio VO47LF Random flickering

The second video looks like a signal distortion issue or it's losing the signal - I can see something appearing in the top right - is it the OSD/channel numbers, possibly saying no signal?

[meehd0]

Re: Vizio VO47LF Random flickering

The second video looks like a signal distortion issue or it's losing the signal - I can see something appearing in the top right - is it the OSD/channel numbers, possibly saying no signal?

Yeah, I think its just the channel number that shows up on the top right. It doesn't say its loosing signal though.

[meehd0]

Re: Vizio VO47LF Random flickering

I just noticed something, every time its flickers I would press the "menu" button on the remote and the image will pop back to normal.