Vizio VP50 HDTV20A

[cmcqueen11]

I have a Vizio VP50 HDTV20A that would occasionaly lose picture, but still have sound. Also, only a few of the buttons on the side of the tv work and the remote only works while on certain inputs. Finally, when I turn off the tv, the power led blinks 10 times before shutting off. I opened up the tv and found multiple blown capacitors on the power board that I replaced (I didn't replace the ones that apeared to be ok so maybe that is the next step). I checked the voltages at all the pins and they all seemed to be within tolerance from what I could find online but this may require a second look also. I also checked the fuses and they all appeared to be ok. After I did all this, I still have the same issues as I did before (not sure about the picture issues as I haven't used it enough) but now I also don't have sound. I tried hooking up headphones to the audio output to see if I could use this as a workaround but had no success. I am pretty new at this and would appreciate any direction going forward. Thanks!

[jose6326]

Re: Vizio VP50 HDTV20A

you need to post clear pictures of the board layout and individual pics of each board

[cmcqueen11]

Re: Vizio VP50 HDTV20A

Just one correction the tv is actually a HDTV10A. Let me know if you need anything else.

[cmcqueen11]

Re: Vizio VP50 HDTV20A

I am not getting the correct voltages in standby mode, but only when I turn on the tv.

[cmcqueen11]

Re: Vizio VP50 HDTV20A

Any help would be greatly appreciated.

[ReeceyBurger123]

Re: Vizio VP50 HDTV20A

What do you mean "correct voltages" can you list what readings please.

[ReeceyBurger123]

Re: Vizio VP50 HDTV20A

What happens when you heat the Psu do the voltages go back to spec ?

[cmcqueen11]

Re: Vizio VP50 HDTV20A

When I plug in the tv I hear 2 clicks and cannot get voltage readings from the pins. When I turn on my tv I get the following readings:

Vs = 192V
Va = 59.7V
5V ctl = 5.04V
5V ab = 4.94V
3.3V = 3.47V
9V = 8.69V
24V = 23.8V

Thanks for the help!