philips 50pfp5332d/37 keeps blowing fuse

[ReeceyBurger123]

Re: philips 50pfp5332d/37 keeps blowing fuse

Yeah but I still dont like the idea of it Bud, they put that capacitance there for a reason.

[budm]

Re: philips 50pfp5332d/37 keeps blowing fuse

If the circuits can handle higher ripple Voltage or not due to the chosen value of the capacitance. Cap has to supply the current during off time of the diode, and the cap has to be able to handle the ripple current.
https://cdn.badcaps-static.com/pdfs/...6edae01a7b.pdf

https://cdn.badcaps-static.com/pdfs/...759291da68.pdf



https://cdn.badcaps-static.com/pdfs/...f6d3e3e891.pdf

https://cdn.badcaps-static.com/pdfs/...ce4b4eff89.pdf

http://waynestegall.com/audio/ripple.htm

Non-stop learning everyday.

[ReeceyBurger123]

Re: philips 50pfp5332d/37 keeps blowing fuse

Ok sorry if I was a little harsh, just dont like the idea of it. Nothing personal at all. Let us know if anything happens.

[ZnsaneRyder]

Re: philips 50pfp5332d/37 keeps blowing fuse

Just because I don't go "by the book" doesn't prove me wrong. I've been argued both ways about capacitance increase or decrease on other forums. I come to this forum, because it has more knowledgeable experienced folks unlike other forums, which are just filled with webnerds that like to troll defending what they learned in school.

The whole "manufacturer knows best" always comes out and proves nothing. Usually the cap the manufacturer chose is based on cost and not necessarily component value, in other words, they use what will work the cheapest, which is why they fail soon and we have to replace them. I usually get most flames from doubling or tripling capacitance, more than I get for decreasing capacitance.

OK, if you are correct and this causes the TV to fail, I'll boldly admit my wrongdoing, and fix it again for free, but until then, no need for name calling or hoping for a failure. Reece, you are one of the people on this forum I really value their opinion or fact, but once it becomes personal or name calling it is silly.

I won't call you anything, and I value our different views, and no hard feelings, but I will leave this thread, and next time, just tell what caps fail and not what you CAN replace them as my little secret, because it always sparks debate.

[ljintexas]

Re: philips 50pfp5332d/37 keeps blowing fuse

I will look..I may have an smps for this set that has been rebuilt.

[ReeceyBurger123]

Re: philips 50pfp5332d/37 keeps blowing fuse

Also the X and Y boards have caps to decouple the output from the first sustaining process not the Vs input thats done by the cap that you decreased you fool !

[ReeceyBurger123]

Re: philips 50pfp5332d/37 keeps blowing fuse

Decreasing the capacitance hugely decreases the stability of the circuits and the output. You do realise how sensitive them sustain boards are dont you ? Lets wait for some other members to chime in see what they think. Your probably going to regret doing that in the long run fact !

Call me a prick whatever but I hope it blows up on you to teach you not to mess like that and get the proper values

[ZnsaneRyder]

Re: philips 50pfp5332d/37 keeps blowing fuse

First and last point massive FAIL there by decreasing the capacitance, expect it to FAIL very soon.

The 450V caps are only off by approximately 50uf, not enough to matter. The newer ones are further from the heatsink (taller and narrower) so they also run cooler than the old ones by not being cooked as badly from the heatsink. The 250V, 470 cap has a longer life, and lower ESR than the original junky 820uf, I measured. I usually don't go down on capacitance, I usually go higher, but certain places it is OK. There are other filter caps on the X and Y boards that filter the ripple from there, it doesn't have to be spot on with microfarads.

Another example is replacing a 1500uf CapXon with a 1000uf Rubycon, and it will be just fine. Another example replacing 680uf SAMXON with 470uf Nichicon or Rubycon is just fine.

The "Rating" of the cap means squat when its a junk brand. A lower rated higher quality cap will hold up fine. Lets not debate, this TV will be just fine.

[ReeceyBurger123]

Re: philips 50pfp5332d/37 keeps blowing fuse

I just repaired one of these exact TV sets.

I had to replace inrush limiting R4006 and R4007 with Large NTC Thermistors because the blowing fuses smoked the originals. The NTC Thermistors are better anyway.

Replace BOTH SAMWHA 450V 270uf with something similar or longer lasting. I had a SHORTED cap in mine causing it to blow fuses, the fuse located between the caps. I used Samsung 220uf 450V.

Replace the G-LUXON 250V 820uf with something longer lasting. The value (uf) doesn't have to match, just put something better in there. I used a Nichicon 250V 470uf.

On both of these replacements, the caps are taller and narrower so they will not be as close to the heatsinks, and makes the caps have longer life.

Now Replace anything SAMXON!
All the little green and black low voltage SAMXON caps near and under the heatsink replace ALL of them with similar or better. Also replace the two black SAMXON caps 680uf, 100V. I used 470uf 100V Nichicon, lower ESR caps, they are slightly taller too.

Once you remove and replace all SAMWHA, G-LUXON and SAMXON caps your set will work, these are known issue parts on most PHILLIPS TV, just search this forum, it's well known.

First and last point massive FAIL there by decreasing the capacitance, expect it to FAIL very soon.

[ZnsaneRyder]

Re: philips 50pfp5332d/37 keeps blowing fuse

I just repaired one of these exact TV sets.

I had to replace inrush limiting R4006 and R4007 with Large NTC Thermistors because the blowing fuses smoked the originals. The NTC Thermistors are better anyway.

Replace BOTH SAMWHA 450V 270uf with something similar or longer lasting. I had a SHORTED cap in mine causing it to blow fuses, the fuse located between the caps. I used Samsung 220uf 450V.

Replace the G-LUXON 250V 820uf with something longer lasting. The value (uf) doesn't have to match, just put something better in there. I used a Nichicon 250V 470uf.

On both of these replacements, the caps are taller and narrower so they will not be as close to the heatsinks, and makes the caps have longer life.

Now Replace anything SAMXON!
All the little green and black low voltage SAMXON caps near and under the heatsink replace ALL of them with similar or better. Also replace the two black SAMXON caps 680uf, 100V. I used 470uf 100V Nichicon, lower ESR caps, they are slightly taller too.

Once you remove and replace all SAMWHA, G-LUXON and SAMXON caps your set will work, these are known issue parts on most PHILLIPS TV, just search this forum, it's well known.

[ReeceyBurger123]

Re: philips 50pfp5332d/37 keeps blowing fuse

No it wont, 50" uses more power and the 42" is not capable of supplying it and will probably just not even turn on.

[newagedevil]

Re: philips 50pfp5332d/37 keeps blowing fuse

ordered a dmm, should have it wednesday. wondering if a psu from a philips 42pfp5332d/37 plasma would work for the 50in, i may have found a unit i can get fairly cheap thanks again

[ReeceyBurger123]

Re: philips 50pfp5332d/37 keeps blowing fuse

Yeah they do actually shut down the 5v and 12v rails after 10-20mins I modded fans into the same Tv with this Psu they were on for about that long after I put it into standby and it stopped the Vs rails. But if you press the power off button on the side the 5v goes low and the relay shuts off stopping every voltage rail apart from 5vstby. I do agree it is ood lol

[flocko]

Re: philips 50pfp5332d/37 keeps blowing fuse

Strange power board these for a Samsung, with the mains supply only connected the board should show all small voltages and a solid green LED lit on daughter board, that flashes a fault code much like the BN44-00222A when its faulty.the Va + Vs come up when Vs on is made high from 5v

[ReeceyBurger123]

Re: philips 50pfp5332d/37 keeps blowing fuse

5vstby cap needs to be changed after repair too.

[ReeceyBurger123]

Re: philips 50pfp5332d/37 keeps blowing fuse

There is no point in throwing fuses at it, they are blowing for a reason. You need to check the mains AC inout side for shorts then get back to us. Also every cap in the image I screen shotted MUST BE CHANGED as well as the 5V standby cap which I will also screen shot if not psu will fail again.

[flocko]

Re: philips 50pfp5332d/37 keeps blowing fuse

This board has two bridge rectifiers fitted to the left hand heat sink (that them with four legs) just above the fuse that is blowing. when you have a dmm come back we can run though testing with you

[newagedevil]

Re: philips 50pfp5332d/37 keeps blowing fuse

The other fuses have been changed also, just don't know what the bridge rectifier looks like on this board or location,can't find any pics of it, thanks for the replies everyone

[sordids999]

Re: philips 50pfp5332d/37 keeps blowing fuse

The capacitors that are bulged will need changing have you checked if all fuses are blown ?

just a rough idea how to test a bridge rectifier

https://www.youtube.com/watch?v=dqkT6hF0O3E

hope this helps

[newagedevil]

Re: philips 50pfp5332d/37 keeps blowing fuse

Also the board does have the pba code lj92-01511a