Question about Philips 46PP9302 46" Rear Projection Television

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Ic part numbers

The part number is STK-392-120. Is one red and one blue? Any way to tell. Thanks in advance for your help Dan!!

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See the initial question thread for the response. I'd rather keep the dialogue there.


Posted on Jul 29, 2008

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1 Answer

Attention, SD TECH I read your 8/25/10 post on

This model does not use STK CHIPS. Look on back of set where model number is---what is PTK number---ie: PTK 169, OR PTK 195

Sep 01, 2010 | RCA P61960 61" Rear Projection Television

1 Answer

Letters and numbers are 3d and curved picture


red, green, and blue lines curve across the top of tv is cause by defective convergence STK IC or you have open resistor at convergence section. if you have defective RGB Color vertical ramp probably you have defective STK IC..


Aug 02, 2009 | RCA D52W23 52" HDTV CRT TV

1 Answer

Samsung three colors on screen, out of focus #hcl4715w

It is a convergence problem. The IC's (integrated circuits) or STK chips or the "guns". You have a red,and blue, IC's that provide all the colors. When the colors are out of convergence, you get ghosting or what looks like 3D pictures. I haven't been able to locate the part numbers for the IC's or STK chips but have located a convergence board. No luck determining if IC's are included (a phone call first to verify) but if they are, would make life much easier for you to install. Part # is BP95-00415H

Typically, IC's cost around $10 or less. here is a link to a guy who provides pretty good instructions on replacing the IC's along with pictures.

Hope this answers your questions. Best of luck.

May 31, 2009 | Samsung HCL4715W 47" Rear Projection...

1 Answer

Samsung HLM507W 50 in. STK IC's

STK-392-180s these are the best.Replace BOTH

Feb 01, 2009 | Samsung HLM507W 50" Rear Projection HDTV

1 Answer

Red out of focus

You red convergence IC is bad, Have the Convegence IC's replaced,It would be wise to replace them both because if the red has failed then the green/Blue IC will fail soon too. Better to replace them both now then have to do the same again with the other IC.
They are large black IC's mounted on a metal heatsink with part numbers on them the Number on them is the part number should be STK-392-040.

Dec 17, 2008 | Samsung HCN5527W 55" Rear Projection...

1 Answer


Look for the board that has 2 big black ics with STK printed on them.

Dec 09, 2008 | Projection Televisions

2 Answers

Red bows and wont realine

Replace the red AND blue convergence IC's. Both need to be changed. You change the blue IC to ensure your repair will be reliable. They are mounted to large. finned heat sinks because they get very hot..hence why they fail more often than any other part in a projection tv. The # on the chips will start with "STK-" followed by numbers. These IC's are available through They cost about $15 to $35 each. Good Luck!


Oct 07, 2008 | Toshiba 57H83 57" Rear Projection HDTV

2 Answers

What is the correct part number?

The question is old, but this might still help someone.

I had to replace mine on the 55" model, and I went with the STK 392-150's. The cause of failure is normally overheating, and with mine they did a lousy job of applying thermal paste to the backs of the ICs. (as you can see in the pic, so I'm sure that is why they failed). Depending on where you buy them, you can probably find the 150s or 180s online for the same or lower price anyway, so go with the higher power rating since that means they will likely withstand more heat for longer. But make sure you buy a good thermal paste and apply it evenly and correctly. Mine is working great now going on 3 months, I used Tuniq TX-4 paste. BTW, I'm a lousy solderer but I removed the old and soldered-on the new chips by hand. It looked pretty rough but ended up working perfectly. Anyone can do it!

Jun 09, 2008 | JVC AV-48WP30 48" Rear Projection...

1 Answer

50h82 red convergence ic replacement

Q783 is a 2SJ512 (FET) with part number 23205037. These are not the easiest to test. If you suspect that it is bad, just replace it. It costs $2.48. I only have a listing for one convergence IC (STK-392-110), but if there are 2, replace the one labeled RVBVGV or just swap the two to see if the convergence shifts from vertical to horizontal.

Keep us posted.

Apr 17, 2008 | Toshiba 50H82 50" Rear Projection...

1 Answer

Convergence problems

I would suggest the convergence ICs as well as a couple resistors right near the Convergence ICs mst likely. 90 % of the time thats the problem. They are not expensive, if you can solder you can handle it if your careful with your solder and use heat sink compound. The ICs will have a number stamped on them usually STK XXX-XXX on a huge heat sink. The following link will have replacement parts Hope this helps you out

Jan 11, 2008 | Panasonic PT-47X54 47" Rear Projection...

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