LG 60" 60pv250 sound but no picture

[eliteconcept]

Re: LG 60" 60pv250 sound but no picture

I did a quick test, DID NOT PLUG the buffers back into the y-sus.
The led on the control board did 3 quick flashes, and one slow flash

[eliteconcept]

Re: LG 60" 60pv250 sound but no picture

Out of interest is the control board LED blinking once every six seconds?

Heres what I found

With and without the buffers plugged in to the y-sus the control board led does the same thing. 3 fast blinks and 1 slow blink.

[Hamie]

Re: LG 60" 60pv250 sound but no picture

Ok I believe it should blink once every 2 seconds.

Can you confirm one of your posts earlier you said zbias should be 110, and it only reached 1 volt? Or do you mean it reached 110 then dropped off?

Would be strange (but not impossible) for both the y-sus and z-sus to both be faulty considering they are separately linked through the power supply.

[tom66]

Re: LG 60" 60pv250 sound but no picture

Hamie... isn't that just for Samsung sets?
I think the LG LED is only blinking according to panel temperature in some kind of morse-like scheme.

[eliteconcept]

Re: LG 60" 60pv250 sound but no picture

Ok I believe it should blink once every 2 seconds.

Can you confirm one of your posts earlier you said zbias should be 110, and it only reached 1 volt? Or do you mean it reached 110 then dropped off?

Would be strange (but not impossible) for both the y-sus and z-sus to both be faulty considering they are separately linked through the power supply.

I tested again both with having the leads right on the test point when the tv is turned on and after it is turned on. in both cases the reading started off at or around 0 then slowly ramped up to about 1.

[eliteconcept]

Re: LG 60" 60pv250 sound but no picture

Does this mean that both ysus and zsus are bad?

[MVC]

Re: LG 60" 60pv250 sound but no picture

My 60PV450is same basic set. And it now seems that both Y & Z Sustain boards are bad.

I have come to the conclusion that these sets were right on the edge, a little push and down they go.

[Bad60pv250]

Re: LG 60" 60pv250 sound but no picture

My lg 60pv250 just lost picture but has sound trying to figure it out aswell i orderd a new powerboard thinking that would fix it but the board i received via ups was cracked. And now im back at step one any suggestions?