Vizio P50HDTV10A Blinky Blinky

[technec]

I acquired this from a family member. I have zero electronic skills, I am a painter. So, this system turns on and then starts blinking, the picture just goes off and on. It makes no noises to speak of. I asked another family member about it, and as a result of that conversation, I took out the power board (with help) and had it repaired (11 popped caps).
So as happy as I was, when put back together, it still blinks.
I am at a loss, and I have read several posts about y boards and x boards, but no idea what one looks like, top remove to haver it repaired. Taking it in for repair is not an option. Anyone have any input, and thank you very much in advance.

[freakaftr8]

Re: Vizio P50HDTV10A Blinky Blinky

First thing you need to do is pull the plug. remove the connectors that go from the power supply to the board on the far right and the far left. Power it up. Does it stay on or turn off again. If it stays on unplug it. Wait 10 minutes then plug in the right board again. Power it up. Does it still stay on?

[technec]

Re: Vizio P50HDTV10A Blinky Blinky

Looking at the PSB there is no connection to the far right board.
Two connections to the far left board, then that has a connection that runs across the top to the right board. I unplugged both connections to the left board and powered it up. I have audio, but the screen stays black.

[gilly1984]

Re: Vizio P50HDTV10A Blinky Blinky

Take the psu back and say it still wont turn on. Did the guy test the psu or did you just ask for caps to be replaced?

[technec]

Re: Vizio P50HDTV10A Blinky Blinky

He stated that he replaced the caps and tested it.

[tom66]

Re: Vizio P50HDTV10A Blinky Blinky

This PSU may also suffer from the LG AC detect issue. Check the AC Detect pin if you can find it.

[cliff_hootarski]

Re: Vizio P50HDTV10A Blinky Blinky

When powered up with all the connectors plugged in to the power supply, does the picture flash and a corresponding ticking noise come from the Ysus board(the biggest board on the left side of the TV looking from the rear)? Do you also get sound while the picture is flashing?

[freakaftr8]

Re: Vizio P50HDTV10A Blinky Blinky

With the sustains unplugged do you have vs and va voltage? Va should be 60vdc and vs like 203 or something.

[technec]

Re: Vizio P50HDTV10A Blinky Blinky

Sorry, been out of town.
I am not an electronics person, so no measuring volts or any idea what a sustain is...

[timmyboy333]

Re: Vizio P50HDTV10A Blinky Blinky

newbie I have a p50hdtv10a no picture no sound any ideas is this the right place to start?

[topfli8979]

Re: Vizio P50HDTV10A Blinky Blinky

More than likely it is your y sustain board, the board on far left on back of tv. I also has this same issue with a p50hdtv10a, would flash white to black screen on initial startup. Replaced the Y board, all is good now!

[caphair]

Re: Vizio P50HDTV10A Blinky Blinky

Is the picture you provided taken before or after the caps were replaced? You can clearly see bulged caps in the picture

[timmyboy333]

Re: Vizio P50HDTV10A no picture

I disconnected the x board and i could see a small part of the vol. on screen What does of mean? no sound Thank you

[timmyboy333]

Re: Vizio P50HDTV10A Blinky Blinky

i do not know how to start new thread or maybe this is how just post on existing. i apologize if i am doing it incorrectly

[tom66]

Re: Vizio P50HDTV10A Blinky Blinky

If you could see a faint image with the X-main removed, the X-main is at fault. You can replace or repair it. On Samsung plasma panels, I tend to just replace it because they're generally quite available.