Philips plasma 50pfp5332D/37 power issue

[Don92649]

I posted this in another similar thread but got no answers so starting new one. A friend has a Philips 50" plasma 50PF7220A/37 which we use to watch sports. It was given to him about 8 months ago since it had 'problems' powering on etc. We got it to come on at the new location so we got lucky for a few months. But then it went off and wouldn't come back on no matter what we tried. I do all the gang's tech work so I did some checking on Internet and saw all the posts about similar problems with these tvs.

We laid the tv on the table and opened up the back. I quickly saw 3 capacitors puffed up on the power board. I've not done a lot of soldering so took the board to a repair shop where I had the 3 bad caps replaced for $20 (I forget now which ones). Put it all together and it worked better than ever. I looked like a genius to the gang. Well, that lasted about 2-3 months and tv started having trouble coming on again. The other day I did the unplugging, waiting, plugging back in a few times but still no power on. Left it plugged in awhile but then all of a sudden we heard a loud pop from inside tv. I thought it'd be easy to spot something burned up inside.

Opened it up again and looked inside but we could see nothing apparently burned. Looked closely at all caps and other parts, tested all fuses but found nothing bad. There are 2 green LEDs on power board but only the one marked LED 8002 is solid on when plugged in; 8001 never comes on. I saw no other LEDs other than the red and green ones at left bottom (as seen from front).

When we plug it in the green LED light in left bottom corner comes on for 7-8 seconds but then the red one flashes 7 times, short pause and then again 7 flashes, etc. Somewhere online I read 7 flashes means bad y board.

After figuring out what board is what I disconnected Y board and plugged TV back in. No change. Tried disconnecting X board but nothing different. I'm stumped and probably in over my head now. Too heavy to haul to repair shop and I'm hesitant to buy new power board for $150+- and then still have problems. Why put more money into an old TV which is apparently on its way out. It's on his table so he's tired of it and ready to recycle it and too heavy to haul to my upstairs condo.

So, any quick suggestions? Thanks, Don

Just my luck -!!!! There was a class action suit recently for this model and other Philips but suit is now closed and settled. Late again......!!

http://philipsplasmatvsettlement.com/

[Don92649]

Re: Philips plasma 50pfp5332D/37 power issue

Hmmmmm...... doesn't anyone moderate these forums?? :-)

Does anyone need any of the boards form this TV? If not, it's going to recycle place.

[tom66]

Re: Philips plasma 50pfp5332D/37 power issue

If it fails to work with X or Y main unplugged, then the problem is likely on the power board - especially if you heard a pop. Did you test every fuse?

[imp]

Re: Philips plasma 50pfp5332D/37 power issue

Also, what brand and type of capacitors did the repair shop replace the faulty ones with? It´s absolutely vital to use capacitors with appropiate specifications.

Perhaps you can share some high-res photos of the circuit boards?

[Don92649]

Re: Philips plasma 50pfp5332D/37 power issue

I'm too much of a novice to know what capacitors they put in. It was a small but very reputable repair place specializing in big TVs, etc. so I would have to assume he knew what he was doing and replaced them correctly. And yes, you never know. We did check every fuse but didn't pull them all out.

Anyhow, my friend wanted it gone so the TV has the back put back on and in the back of my suv ready to take to recycling. It is way too heavy to keep moving around and no one in our group wants to put $150-200 into new power board and then still might have problems. I think we have given up - that's why my last post asked if anyone might want any parts from it. If I don't hear from anyone in a few days then it goes out. Thanks for all the advice anyhow.

[retiredcaps]

Re: Philips plasma 50pfp5332D/37 power issue

If I don't hear from anyone in a few days then it goes out.

I just pinged someone who might be interested. You may be getting a PM in the next day or so.