Question about Philips 43PP9202 43" Rear Projection Television

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Convergence IC problem AGAIN?

I have had my 43PP9202 for a little over three years. This past October I was experiencing red and green hour glass shapes across the screen when I would first turn it on. If I shut it off and turned it back on, the distortion would disappear. After two weeks of this problem, the picture would stay distorted no matter how many times you cut it off and then back on. I called in a repairman who replaced two convergence ICs (STK392-110). Since then I have had no more problems with the set at all. Until the other morning I woke and turned the set on to discover that all too familar red and green hourglass stretched across the screen again. This time, however, it did not matter how many times I turned the set off and on again, the hourglass was still there. Frustrated at this, I left the set on and went into the other room and was simply listening to the program that I could not see. Imagine my surprise when I went back into the room and there was no picture but the sound was perfectly coming through the surround sound receiver I have the set hooked up to. I did not think at the time to check and see if sound was coming out of the actual television speaker itself. I unhooked everything from the set and moved it from the stand it sits on to make it easily accessible and when I plugged it again I get no sound, no picture and a clicking sound which appears to be coming from the back at the bottom of the set. Any direction you could point me in that does not involve another repairman to come to my house so I can pretty much pay for his vacation would be extremely appreciated (by my eyes which are strained by now watching a 19 inch set). I have two friends who are electronical inclined are offering to help me as long as we have some sort of direction to start in. Thank you so much!

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Re: Convergence IC problem AGAIN?

You idiots **** me off. STK394-160's are for Hitachi only. Cary

Posted on Jun 09, 2009

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Re: Convergence IC problem AGAIN?

I had a similar problem recently. the ic's eventually went completely bad, and caused a short which made the tv beep at me when i tried to turn it on. replacing the ic's fixed everything, so it is very likely that the ic's are responsible for the short. as for the STK394-160E's, you can find them here. didn't have any luck finding them on ebay, but who knows, you might get lucky.

Posted on Jan 06, 2008

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Re: Convergence IC problem AGAIN?

Sounds like maybe the IC's have shorted and are keeping your power supply from starting up, (possibly the supply is now bad), the amps that I use now are stk394-160e's to replace the stk392-110's, they are rated for higher frequency of the HD tvs than the originals and hold up better. The original tech may have missed a bad resistor as well, I would definitly call them back as it may be under warranty (90 day warranty or 30 day are typical)

Posted on Jul 18, 2007

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Philips 43pp92 blue will not converge

STK392-120 is convergence correction amplifier.. the problem is the convergence circuit... try to check the small Valuie electrolytic capacitors or High value resistors! maybe the said parts is in change Value... used a ohmmeter tester to find the chenge value parts!.

Nov 05, 2007 | Philips 43PP9202 43" Rear Projection...

1 Answer

My Philips 43PP9202

You have one of two problems. Sometimes both.

Problem #1) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

TV set after fluid change


2c07611.pngSolution #1

What you will need to do is replace the coolant and clean the crt. You can get a repair kit from that includes replacement coolant, photos. instructions, etc.

Problem #2)

Your TV may have a convergence failure. ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem

  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
Here are some photos of convergence problems.

Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

0667c5f.pngSolution # 2

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

Jun 03, 2009 | Philips 43PP9202 43" Rear Projection...

1 Answer

Convergence problem

replace the convergence ic. the IC# is STK392-120, replace this two ic at the same time. then put some silicon grease on the back of the IC for better heat transfer. some will work on replacing just 1 IC but I would recommend to replace both per philips advise. hope this help. regards, cebuwano.

Mar 17, 2009 | Philips 43PP9202 43" Rear Projection...

1 Answer

Philips Rear Projection TV 43PP9202 Picture looks 3D

You need to replace both convergence ICs they are STK392-120 you will also need about four 6.8 ohm 1 watt resistors. You can get replacement ICs and resistors at the following link and they provide free instalation instructions with pictures. here is the link.

Jul 20, 2008 | Philips 43PP9202 43" Rear Projection...

1 Answer

Replacing convergence ic on Philips 43pp9202

you can do this yourself and if you buy your parts at the sight I posted you also get pic installation instructions as well as free online tech support

May 10, 2008 | Philips Magnavox 51MP392H Rear Projection...

2 Answers

Panasonic rear projection tv convergence problem

Check the regulator and convergences ICs....accordianman

Feb 26, 2008 | Projection Televisions

1 Answer

Replacing convergence ic on Philips 43pp9202

IF you can solder yes you can fix it yourself. Replace STK-392-110s with STK-392-180s,

Nov 22, 2007 | Philips 43PP9202 43" Rear Projection...

1 Answer

Repeated convergence problem or something new?

call the shop and see what the warranty repair on the last repair is,the convergence ic must have shorted again and now the set went into shut down to protect itself.

Jul 15, 2007 | Philips 43PP9202 43" Rear Projection...

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