Phillips 50pfp5332D/37

[gbr0272]

Hi, this is my first post as a new member. I am not a TV tech but am skilled with a meter and can read schematics and instructions pretty well. My 50" made a loud crackling sound and powered off (according to my daughter) unfortunately I was not home. When I first tried to light it up again I got the red light, but then the steady blue. No picture no sound.
I took the back off and found no obvious burn out or pregnant caps. When the power button is first hit I hear a relay click but nothing after that. I do not have access to a service manual so at this point I am lost... Help!!

[gbr0272]

Re: Phillips 50pfp5332D/37

I took a reading on 1M03 pin 5vstby voltage should read 5.2 it read 11V if that helps any!

[selldoor]

Re: Phillips 50pfp5332D/37

And your meter was set on what?

And you changed the batteries when?

[gbr0272]

Re: Phillips 50pfp5332D/37

Meter was set to 20v DC Scale Batteries are fine.

[gbr0272]

Re: Phillips 50pfp5332D/37

It has been unplugged for about 2 hrs and now reads 5.28, I really have no idea what I am doing! Or even if this is worth fixing though I have had it 6 years trouble free and from what I have read about this particular tv I have been lucky. It had a great picture and sound right up till this problem occured I would buy a replacement power supply just to give it a shot, from what I have read so far it seems that is the most likely cause ( I am still researching though) Any tips would be helpful though. I have plenty of time to play with it. One problem in my search so far is that I cannot match any of the #'s on the board to available replacement part #'s. I read that the first 4 of the serial # would specify what power supply would be proper for this tv. Those are YA1A. The numbers on the board are; From the bar code sticker- QM390174071472, or, LJ44-00144A and PS-506-PH

[selldoor]

Re: Phillips 50pfp5332D/37

Wow. Can you test the BIG cap - carefully high voltage to see if it is discharging itself.
Is there no sign of anything that might have gone crackle.
Think we are going to need pictures -one of the set with the back off and one of front and back of the power supply and the connector to the main board

[selldoor]

Re: Phillips 50pfp5332D/37

Its a plasma - I know nothing about usual faults on them but there are pages of threads on this particular model. - If you have not read them just type the model number into search. That will give you an idea of what the plasma gurus will be asking you.

Check the fuses on the Y main but dont just replace until you have more comment


here's the service manual for the tv. You have to go by the chassis number on the panel.

[gbr0272]

Re: Phillips 50pfp5332D/37

I can send pics if I can figure out how to attach it here... I saw no obvious signs of what may have crackled, but she said it was rather loud, I expected to be able to see something as soon as I got the back off.

[selldoor]

Re: Phillips 50pfp5332D/37

See edit to previous post

[tw2005]

Re: Phillips 50pfp5332D/37

There's another one of these being fault found on the forum.

https://www.badcaps.net/forum/showth...0pfp5332D%2F37

Also check out the y buffer and ymain for shorts(e.g. 88N30W FETs) . Samsung S50HW-YB02 panel, common failure

Search 50pfp5332D/37 and you get a few hits to compare to.

EDIT: Upper buffer on that setup is what commonly shorts. The other I linked reported had a single buffer, but same ymain.

[gbr0272]

Re: Phillips 50pfp5332D/37

Thanks Selldoor, I'll check out some of these. The pics were from my phone not the best quality.

[gbr0272]

Re: Phillips 50pfp5332D/37

Thx TW... gonna check it out!

[tw2005]

Re: Phillips 50pfp5332D/37

Thx TW... gonna check it out!

There's a repair kit doc also put in that post that could help.

[gbr0272]

Re: Phillips 50pfp5332D/37

thx...