Samsung 50 plasma PN50C550G1FXZA

[freemancomputer]

Re: Samsung 50 plasma PN50C550G1FXZA

Starts out at about 90 then settled down at 5

[Hamie]

Re: Samsung 50 plasma PN50C550G1FXZA

Ok so vsc and ve are matching the panel sticker?

You'll need to jump on the power supply without the mainboard attached.

PS-On jump with ground.
Vs-on jump with 5vstby

Disconnect the main board. And put the test pattern short back in place.

[freemancomputer]

Re: Samsung 50 plasma PN50C550G1FXZA

Ok so vsc and ve are matching the panel sticker?

You'll need to jump on the power supply without the mainboard attached.

PS-On jump with ground.
Vs-on jump with 5vstby

Disconnect the main board. And put the test pattern short back in place.

It might be because I just woke up but I did not follow that at all.

[Hamie]

Re: Samsung 50 plasma PN50C550G1FXZA

to completely rule out the main av board we need the power supply to start without the mainboard connected.
You need to trick the power supply into thinking the mainboard is sending the signals to start up.

So look at the legend table that connects the power supply to the mainboard. It will be near the wire (upload a picture of the power supply connector to the main board if you're not sure)

Then with a piece of wire connect ps-on to ground, and vs on to 5v standby.

The power supply will now turn on without the mainboard.

You can jump it on like this:



(Obviously the picture above is not representative of the holes you'll need to jump)

[Hamie]

Re: Samsung 50 plasma PN50C550G1FXZA

Can you also upload a photo of your panel sticker.

[freemancomputer]

Re: Samsung 50 plasma PN50C550G1FXZA

to completely rule out the main av board we need the power supply to start without the mainboard connected.
You need to trick the power supply into thinking the mainboard is sending the signals to start up.

So look at the legend table that connects the power supply to the mainboard. It will be near the wire (upload a picture of the power supply connector to the main board if you're not sure)

Then with a piece of wire connect ps-on to ground, and vs on to 5v standby.

The power supply will now turn on without the mainboard.

You can jump it on like this:



(Obviously the picture above is not representative of the holes you'll need to jump)

Thats why I was confused I dont see a 5v standby.

https://drive.google.com/file/d/14jM...ew?usp=sharing

I think this is the sticker that your asking for

https://drive.google.com/file/d/1zgU...ew?usp=sharing

[bwilliams60]

Re: Samsung 50 plasma PN50C550G1FXZA

Hamie,
Can you help out the Dead 42" Samsung plasma as well or are we as far as we can go. I can follow this thread, seems similar. Let me know please.

[Hamie]

Re: Samsung 50 plasma PN50C550G1FXZA

It's the connector next to it I think,
I can't see the table as the wires are covering it .

[Hamie]

Re: Samsung 50 plasma PN50C550G1FXZA

Hamie,
Can you help out the Dead 42" Samsung plasma as well or are we as far as we can go. I can follow this thread, seems similar. Let me know please.

Did you manage to replace the resistor?
If so bump your thread back up.

[freemancomputer]

Re: Samsung 50 plasma PN50C550G1FXZA

It's the connector next to it I think,
I can't see the table as the wires are covering it .

Here are 2 more pics to make sure Im looking at the right wires. The pic i sent you before goes to the main board and the one next do it goes to the AV.

https://drive.google.com/file/d/13x1...ew?usp=sharing

https://drive.google.com/file/d/1dfY...ew?usp=sharing

[bwilliams60]

Re: Samsung 50 plasma PN50C550G1FXZA

I bumped it back up three days ago and sent you a PM. The resistor has been replaced.

[Hamie]

Re: Samsung 50 plasma PN50C550G1FXZA

I bumped it back up three days ago and sent you a PM. The resistor has been replaced.

Ok didn't notice that.
Bump it again please.

[freemancomputer]

Re: Samsung 50 plasma PN50C550G1FXZA

It's the connector next to it I think,
I can't see the table as the wires are covering it .

I was trying to figure the wiring out and came across this.

auto download PDF

Whats throwing me off is both of the cables have a ps-on. I dont want to just start jumping wires.

[rccrasher65]

Re: Samsung 50 plasma PN50C550G1FXZA

Gentleman, sorry to say but, this tv model is notorious for bad panels. I had the same exact model with black horizontal lines, bad panel. mine started out the same way. with one, then two black lines, in a day or so whole panel had lines. If you have lines already don't waiste your time or money. Tom helped me get mine running and picture started out with one black line, then continued from there. I also have most of the boards left. Sorry for the bad news.

[rccrasher65]

Re: Samsung 50 plasma PN50C550G1FXZA

The horizontal lines are probably caused by a bad panel.

Hamie, In this perticular model you are absolutely correct, bad panel.

[freemancomputer]

Re: Samsung 50 plasma PN50C550G1FXZA

Gentleman, sorry to say but, this tv model is notorious for bad panels. I had the same exact model with black horizontal lines, bad panel. mine started out the same way. with one, then two black lines, in a day or so whole panel had lines. If you have lines already don't waiste your time or money. Tom helped me get mine running and picture started out with one black line, then continued from there. I also have most of the boards left. Sorry for the bad news.

But does a bad screen cause the voltage drop that I'm seeing?

[rccrasher65]

Re: Samsung 50 plasma PN50C550G1FXZA

Your fault could have been caused by any one of the boards in the tv, or the panel itself. Mine ended up being a bad main logic board. fuse went on the board. I replaced fuse and she fired up with one black line, so we thought buffer boards replaced them, no change. Lines just continued to get worse more and more the longer it ran. The picture and sound were good but full of lines.End result faulty panel. You can find a million boards for this set, for a reason. I have most of mine. All replacement boards were checked befor placing in tv. the ribbon cables were never touched, so no misalignment there. befor purchasing buffer boards, I did go through the ribbon cables just in case, they got misaligned, no change. My replacement boards were purchased from a member here who checks and double checks any boards he has for sale, plus I rechecked them befor placement. You can check out my thread, pictures included.

[freemancomputer]

Re: Samsung 50 plasma PN50C550G1FXZA

Your fault could have been caused by any one of the boards in the tv, or the panel itself. Mine ended up being a bad main logic board. fuse went on the board. I replaced fuse and she fired up with one black line, so we thought buffer boards replaced them, no change. Lines just continued to get worse more and more the longer it ran. The picture and sound were good but full of lines.End result faulty panel. You can find a million boards for this set, for a reason. I have most of mine. All replacement boards were checked befor placing in tv. the ribbon cables were never touched, so no misalignment there. befor purchasing buffer boards, I did go through the ribbon cables just in case, they got misaligned, no change. My replacement boards were purchased from a member here who checks and double checks any boards he has for sale, plus I rechecked them befor placement. You can check out my thread, pictures included.

I was hoping it's not the screen, don't have the cash for a new TV right now. But if it's bad its bad, might see if I can part some of it out.

[rccrasher65]

Re: Samsung 50 plasma PN50C550G1FXZA

I was hoping it's not the screen, don't have the cash for a new TV right now. But if it's bad its bad, might see if I can part some of it out.

part it out. you might be able to find another tv cheap to fix. Sorry for bad news, just didn't want to see you put any money into it for nothing.