Vizio vp50hdtv10a problems

[kolls1]

Ok, checked and replaced all caps. this thing is giving me fits here is my readings

P800:Orange 5Vsb 5.00V
CN805: Bottom pins0.00V
CN807 0.0V, 0.0V, 0.0V
CN802: 0V
CN803: 0V
CN809: 0V
I made a video instead of pics...help please
http://youtu.be/1p1ifT_cD50

[ReeceyBurger123]

Re: Vizio vp50hdtv10a problems

Probably failed Epprom as you get no Pson signal.

[kolls1]

Re: Vizio vp50hdtv10a problems

so how do i test for this

[ReeceyBurger123]

Re: Vizio vp50hdtv10a problems

Is the pcb connectors labeled with voltages ?

[kolls1]

Re: Vizio vp50hdtv10a problems

Yes they are

[vinceroger69]

Re: Vizio vp50hdtv10a problems

https://www.badcaps.net/forum/showth...io+vp50hdtv10a
these links are too toms manuals you maybe able to use for fault finding the link in post 4 in above link does not work so use the top one in this list as tom says lg panels are the same in that thread.
http://www.toms-service-manuals.com/...h=Submit+Query

[kolls1]

Re: Vizio vp50hdtv10a problems

Ok that didn't help, just trying to fix this damn thing before I throw it out the door

[kolls1]

Re: Vizio vp50hdtv10a problems

Ok with some doing more looking and testing, I found something interesting if I take and jumper AC detect to RL-ON board powers up and doesn't shut down with c800 disconnected. No vs or va voltage . Any suggestions

[kolls1]

Re: Vizio vp50hdtv10a problems

Anybody help me

[tw2005]

Re: Vizio vp50hdtv10a problems

I'll take a stab and it could be in protection if either the ysus or Zsus boards have failed. the logic control board controls the power up sequence, also detects if there's a problem with the z or y boards I believe or it could itself be dead but IPM failure is a fairly common fault.

Don't have enough LG knowledge to say more.

Maybe describe what it is doing from when it's plugged in to when you attempt to wake it out of standby. I know on an old 2006/7 50PX5 it would attempt to switch on , led would go green then shut off straight bad to red led on a shorted sus board.