another 50" Philips 50PFP5332D/37

[hauntfreaks]

ok im another owner of a not powering up 50" Philips 50PFP5332D/37....I've done a search and havent found anyone that has followed thru with fixing this problem.... heres my problem

when I plug the TV in... i hear a relay click... then about 10 seconds I hear the replay click again... then on power supply the LED flashes 2 times slow then a pause, then it repeats....

ive inspected the caps and all the caps that are "easy" to see are flat , no bulging or leakage... but under one of the heat sinks there are two caps.. very hard to tell but might have very slight bulge.... here are a few photos... i did the best to show the two suspect caps... any help will be great thanks

[tom66]

Re: another 50" Philips 50PFP5332D/37

Those are bulging.

It looks like you will have to unscrew the power devices from the heatsink and desolder the heatsink to get at them.

After re-installing heatsink, use some thermal paste on the devices in question, to retain good thermal contact.

It is a poor design though; placing the caps there means they will be subject to constant heat. And they are only 85°C rated. The font reminds me of Teapo, but the vent doesn't. Can you confirm manufacturer?

[hauntfreaks]

Re: another 50" Philips 50PFP5332D/37

wow... thanks for the lightening fast reply.... man i dread getting to these
they are:
Samxon
25v 680uf
105c

[tom66]

Re: another 50" Philips 50PFP5332D/37

wow... thanks for the lightening fast reply.... man i dread getting to these
they are:
Samxon
25v 680uf
105c

Any brand code?

SAMXON are okay; one of the better cheap brands, but like all manufacturers, they had a few bad series of caps, and they don't perform as well as some of the "name" brand caps. (Rubycon, Panasonic, etc...)

Before you remove the heatsink see if you can desolder them and lift them out using plyers or some other instrument.

Feel the top of them too, in case the image is giving us a distorted view, they should feel flat (maybe you will also feel the vent, don't worry about that.)

Looks like my upside-down reading isn't that good they are actually 105°C caps but still they won't do too well.

[hauntfreaks]

Re: another 50" Philips 50PFP5332D/37

the only other markings i can see is VNA.... the rest is obstructed by the heat sink... i think if I work at it, I can maybe use a pair of forceps after its desoldered.....

thanks again I really appreciate all the help

[tom66]

Re: another 50" Philips 50PFP5332D/37

the only other markings i can see is VNA.... the rest is obstructed by the heat sink... i think if I work at it, I can maybe use a pair of forceps after its desoldered.....

thanks again I really appreciate all the help

If you get them out take pictures of them so we can see them bulging and the markings on them.

Also measure the dimensions of them because capacitors come in various sizes and especially in that part of the board, they appear to be very space constrained.

[hauntfreaks]

Bad Caps?

well.... i got them out.... there was just enough room... should be fun getting the new ones in...

[tom66]

Re: another 50" Philips 50PFP5332D/37

What are the dimensions of those?

Did you leave the leads in the board?

[hauntfreaks]

Re: another 50" Philips 50PFP5332D/37

nah got the leads out.... i used desoldering wick... but the leads still ripped out...

there: 16mmx10mm

[tom66]

Re: another 50" Philips 50PFP5332D/37

Where are you in the world?

I'm assuming they are 16mm high and 10mm dia, these would do:

http://search.digikey.com/scripts/Dk...name=P14422-ND

Shipping may be more if you are out of the US.

[Krankshaft]

Re: another 50" Philips 50PFP5332D/37

Those look like the GF or GL series complete junk.

[hauntfreaks]

Re: another 50" Philips 50PFP5332D/37

thanks for the help guys...... im in NJ so... that looks great... i have a local place in philly... 10mins from me im trying today..... ill keep you posted how i make out....

[tom66]

Re: another 50" Philips 50PFP5332D/37

thanks for the help guys...... im in NJ so... that looks great... i have a local place in philly... 10mins from me im trying today..... ill keep you posted how i make out....

Just don't buy any cheap capacitors - use low ESR ones.

[hauntfreaks]

Re: another 50" Philips 50PFP5332D/37

picked up the caps... installed.... still nothing.... LED on power supply still blinking 2 time pause repeat.... im at a lose now...

[hauntfreaks]

Re: another 50" Philips 50PFP5332D/37

only thing i can find (maybe) the code means : High beam current protection active ?

this is where im really lost what does that mean?

[tom66]

Re: another 50" Philips 50PFP5332D/37

only thing i can find (maybe) the code means : High beam current protection active ?

this is where im really lost what does that mean?

This is a plasma right?

[hauntfreaks]

Re: another 50" Philips 50PFP5332D/37

yep a plasma

[tom66]

Re: another 50" Philips 50PFP5332D/37

yep a plasma

Check the voltage on the four large pins, should be around 150V from what little I know about plasmas. (Measure from case of TV to these pins.)

[tom66]

Re: another 50" Philips 50PFP5332D/37

BTW, what caps did you use to replace the bulged ones?

[hauntfreaks]

Re: another 50" Philips 50PFP5332D/37

I never looked at the brand.... the more im researching its looking like it might be the logic control board but i see them used for as little as $25