Samsung PS51D6900DSxxc- Stays in standby

[curro]

Re: Samsung PS51D6900DSxxc- Stays in standby

Bad news, as usual, without voltage goes.

Bridges have done horizontally.

I do not understand, I made a few days ago and had the bridge voltage PSON goes.

[tom66]

Re: Samsung PS51D6900DSxxc- Stays in standby

So, you do not get voltages when triggering PSON?
Have you tried VSON, if it is separate?

[curro]

Re: Samsung PS51D6900DSxxc- Stays in standby

Exactly, continued without voltages, with PSON activated

Sorry I do not understand that separate .. I have not touched anything VSON


I'll post a picture

[tom66]

Re: Samsung PS51D6900DSxxc- Stays in standby

Sometimes these PSU boards have a separate VS-ON for turning on the plasma panel voltages.

How are you providing signal to PS-ON?

[curro]

Re: Samsung PS51D6900DSxxc- Stays in standby

PSON connect to GND.

It should also be connected to GND Vs_on?

[tom66]

Re: Samsung PS51D6900DSxxc- Stays in standby

Yes, try that too.

[tw2005]

Re: Samsung PS51D6900DSxxc- Stays in standby

Tom I believe there is a panel on command and I'd consider trying disconnecting the buffers or go deeper on the ymain or disconnecting the ribbon to the logic main

have any checks on fuses/shorts etc been done yet?

i have had on of my PS50Q91 models stuck in standby because of shorted buffer and ymain.

I just can't remember how I fluked the set to turn now but I mucked around with the Ymain area and maybe the logic card.

Sorry I can't be more helpful.

The only other problem I see is on this the y is feeding the x, on mine they fed inderpendantly VS from the PSU.

[curro]

Re: Samsung PS51D6900DSxxc- Stays in standby

Well still trapped in stby.

Tomorrow if I have some time, desmontare the psu and will review again.

Thanks to all for the help, Tom66 thanks for the effort and patience.