samsung still dead!!!!

[grabcol01]

So guy's I replaced all caps and power board is still dead, and t.v, but now have 5.23 volts at the stand-by pin.... the other 5.3 volt pins on the connector are no volts,
any ideas?????

[Alastair E]

Re: samsung still dead!!!!

Whats PS-on doing?

[grabcol01]

Re: samsung still dead!!!!

1.25 if i recall correctly Alastair....

[grabcol01]

Re: samsung still dead!!!!

is there a scymatic for this dyp-50w2 pcb. I have found one on this site, but not readable... very dim print !!!!!

[grabcol01]

Re: samsung still dead!!!!

I feel one or two more components and it may fire up!!!!!??? Fets maybe but not sure which ones and part numbers???

[tom66]

Re: samsung still dead!!!!

Does PSON vary when you press the power button? Model # of TV? What have you replaced so far? Can you stop using exclamation marks?

[grabcol01]

Re: samsung still dead!!!!

Sorry Tom, very frustrated with this t.v, replaces all caps & now have stand by 5 volts as before it was totally dead, and if you search thread "samsung plasma dead" and look for me "grabcol" there is all the info from previous thread. £40 into this so far.. addictive lol

[tom66]

Re: samsung still dead!!!!

Why did you start a separate thread? Perhaps start replying to that one... unless that's not your original thread... in which case I'm lost a little here.

[grabcol01]

Re: samsung still dead!!!!

Taking to tip.

[tom66]

Re: samsung still dead!!!!

Shame, at least stick it on eBay or Gumtree and get some money for it first..!

[nogger]

Re: samsung still dead!!!!

Before you take it to the tip remove the PSU & power it up on a bench .Short the PS_ON pin to ground (the pin next to it will do ) & you should hear a relay click. Release the short & the relay will drop out again. If you don't get a click with this test then i suspect the PFC circuit is at fault.

Graham

[grabcol01]

Re: samsung still dead!!!!

There is a GOD...... I've just had a final look before taking to tip tomorrow and like you said Graham as I have read on other sites, shorted out PS-ON & rtn pin next door and 2 quick clicks from relays, then a click as short released..... plugged all the leads back in to p.s.u.............. shove the mains lead in and click click and T.V is on.... all the menus work and no unusual looking lines or anything, just need to get a aerial lead up its back side and hopefully its a good one........ Maybe the relays just needed a good short....

[nogger]

Re: samsung still dead!!!!

More like a bad fitting connector.cable & you have just reseated it. I do lots of these boards for my sins & don't normally get relay problems surprisingly. See how it goes over a few days!

Graham

[grabcol01]

Re: samsung still dead!!!!

I know but i have unplugged and replugged about 20 odd times all connectors over the week ive had it.

[nogger]

Re: samsung still dead!!!!

Well lets see how it goes, let us know if it goes off again :-)
Graham

[Paul22]

Re: samsung still dead!!!!

Can anyone give me the part numbers for the FET's in a BN44-00160a power board?

[tw2005]

Re: samsung still dead!!!!

Can anyone give me the part numbers for the FET's in a BN44-00160a power board?

That's a broad question, Which ones?

Have not found a schematic yet but these boards sub (BN44-00162A, BN44-00189A, BN44-00190A)so there's a possibility they have the same spec fets

[tw2005]

Re: samsung still dead!!!!

This might help

https://www.youtube.com/watch?v=dVaC2KVVLvs

i did not see him mention the numbers but can't they be read off what you have?

[Paul22]

Re: samsung still dead!!!!

They are burned and cannot read. They are the ones next to the 2 main caps.