Plasma lg 60pn5700 -- self test ok -- but no picture -- help please !

[anibal2100]

Hello everyone !

Got a LG 60pn5700 with no picture. Replaced the mainboard and still same thing.

I can turn ON or OFF the TV with no problems. It responds to the remote.

Shorted the 2 pins in the control board (self test) and the panel displays perfectly all solid colors and patterns as it should.

My questions are:

1. Does this means that the Y, Z and x boards and buffers works properly?
2. Could be the control board itself faulty, even it runs the self test correctly ?

The control board Led lites every 5 secs (long -short-5 secs-long short)

All voltages are correct (VS, VA, VSC, VE) except 15V which reads 17.5V

Any help will be very appreciated !

Thank you in advance !

Anibal

[tvtimmy]

Re: Plasma lg 60pn5700 -- self test ok -- but no picture -- help please !

Everything but the mainboard is good. Someone sold you a bad mainboard. That test confirms the control board is good and main is bad. Get your $$$$$ back and try another.

[anibal2100]

Re: Plasma lg 60pn5700 -- self test ok -- but no picture -- help please !

Thank you for the advice !
Just what I suspected but I need a more experienced opinion because is hard to accept that a mainboard claimed as "working perfect" doesn't work at all. Is a headache !!
Thanks to you my headache is gone ! hahahaha!
I just ordered another main (actually $20 cheaper than the previous)
Thank you again and I will post the results next week to let you know and for the benefit of others with the same problem.
Best regards !

Anibal

[anibal2100]

Re: Plasma lg 60pn5700 -- self test ok -- but no picture -- help please !

Ok. Here is the update.
Got the second mainboard today and.. works just fine !
So thank you TvTimmy !!!

[tvtimmy]

Re: Plasma lg 60pn5700 -- self test ok -- but no picture -- help please !

U.R. WELCOME! Thanks for the update, enjoy!