Vizio P50hdtv10a vertical bar

[topfli8979]

Re: Vizio P50hdtv10a vertical bar

Weird things going on with this set, Im thinking my new upper ydrv is bad also. I finally got something to come up on the screen. The only way I could do that though was by unplugging the P3 connector from the y sustain, leaving the buffers attached at the pads. As soon as I hook p3 back up I get nothing on screen,no prime. Picture is with P3 plug disconnected.

[Glitcher]

Re: Vizio P50hdtv10a vertical bar

Yeah I would recheck those FETs on the Y buffers again.

[topfli8979]

Re: Vizio P50hdtv10a vertical bar

What should the 3 fet's measure out of circuit if good?

[tom66]

Re: Vizio P50hdtv10a vertical bar

Open circuit except one way there will be a diode drop around 400 to 800mV.

[topfli8979]

Re: Vizio P50hdtv10a vertical bar

Its not the buffer boards that are bad, had a good set installed, does same thing. White plug connected to y sus, I get nothing. Disconnect that plug I get a full distorted white screen. I cannot even get the vertical bar on screen anymore that I started this post with.