Question about Pioneer SD-P55A3-K 55" Rear Projection Television

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Purchasing STK's. Who is Reputable?

I replaced the 392-110's on my Pioneer with a pair a friend gave me. For about a day convergence was fine and now the red is back to flipping out. (Get's so bad it blows the fuse) I was thinking I'd invest in a couple of STK392-180's (Pioneer's suggested replacement). On the Pioneer site they are 40 bucks an IC. I've seen sites claiming to have Sanyo brand for $15bucks. Is this trustworthy or do I have to bite the bullet and more than double my cost?

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Re: Purchasing STK's. Who is Reputable?

You get what you pay for. At they STK392-180 is 29 and change . AND yes replace them with the 180 as the 110s are not powerfull enough. Good Luck

Posted on May 27, 2006

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I have multiple colors on the screen of my 530hd pioneer elite TV when it warms up. When I try to adjust the convergence I am unable to move the red line far enough to converge on the blue or green line.

The convergence of your tv is defective try to replace it. You will find the convergence chip inside your tv, try to open the back cover of your tv but be sure to unplug the tv first. Try to look the large aluminum plate it is the heat sink, your convergence chip is attached to that heat sink it has a marking of stk-*** followed by a number you should remove it from the pcb using a soldering iron, and soldering pump but be very careful you might damage the pcb and may caused another fault to your unit. Or you can contact a service technician to save you from stress. Good day and best regards.

Jul 19, 2011 | Pioneer PRO-530HD 53" Rear Projection...

1 Answer

My Pioneer PRO-200 60 in. Rear Projection Television picture looks great however it appears to be dark and blacks all blend together on the screen.

The tv have a problems known as a convergence problems,it dead.Tv have colors lines R,G,B mis alignment,have colors shadows pictures or 3D pictures look alike.The tv convergence board have dead 2 STK convergence ICS and some or all it resistors are dead.These parts on the convergence board must be replaced to solved the tv convergence picture problems.The shop,will cost u like $300-350 for parts and labors.

Nov 03, 2010 | Pioneer PRO-200 60" Rear Projection...

1 Answer

Hi, my zenith won't turn on at all. My friend gave it to me and said it needs a convergence chip. When I press the power button I hear a series of seven small chips and nothing else. I work on computers...

U have tools like a soldering iron,desoldering pump or desoldering braid and solders?U know how to do basic soldering?The tv convergence board require replacing 2 STK convergence ICS and some or all it resistors too,to solved this chirping sound problems.Tries websites like, to buy a convergence kit to repair it ur self.The shop,will cost u $300-350 for parts and labors.

Oct 14, 2010 | Zenith R40W46 40" Rear Projection...

1 Answer

My tv looks like it is in 3-d. i went to set-up menu, convergence, the red is off and will not move over to line up. it was fine one minute then it was out of wack the next.

The tv 100% have convergence problems,it dead.The tv convergence board,require changes 2 STK convergence ICS and some or all it resistors to solved the convergence problems.The shop,will cost u $300-350 for parts and labors.

Sep 07, 2010 | Pioneer PRO-620HD 58" Rear Projection...

1 Answer

The color is out on my tv

U mean all ur colors picture lines on the tv are misaligns?Ur tv convergence are dead.This problems are the 2 STK convergence ICS and some or all it resistors are dead.The convergence board the 2 STK Convergence ICS and those resistors must be change to solved the convergence problems.The shop will cost u $300-350 for the parts and labors.

May 18, 2010 | Pioneer SD-532HD5 53" Rear Projection...

1 Answer

My pioneer set has a converge problem

replaced both stk convergence ics.also check
the resistors near the ics with a ohm meter to
see if any are open or burnt.

Jul 29, 2009 | Pioneer SD-533HD5 53" Rear Projection HDTV

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What causes this

Hi, thank you for visit fix ya.
Do you have problems with you STKs ICS convergence.
Replace stk 392-110, use stk 392-150 ( better).
For parts, go to:
Thank you

Jul 23, 2009 | Panasonic PT-47WX49 47" Rear Projection...

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Need more help on stk-392-110

Possible cause if generic chips were used. You can't use generic STK chips on this set they will blow, if not right away most likely within a month. I just did my friends set and spent 51.00 a piece for genuine Panasonic STK chips, didn't replace any other components and its fine. (I did have an unrelated issue with fluid but the set is fine now) I am not sure that is the problem your having but if you got cheap chips in the kit you bought, there is a chance they blew again. Also double check your solder connections make sure there isn't any bridging or cold solder joints. Did you use new heat sink grease (white paste)? Checking the voltage is good advice also. My advice is based on the assumption that you tried to fix the convergence through the convergence menu on the set and still couldn't get it. Let me know...

Mar 06, 2009 | Panasonic PT-53WX53 53" Rear Projection...

2 Answers

Blue convergence on Pioneer SD-532HD5

The converence IC's are the problem. Unfortunaely, I do not a service manual for that unit. You will find the IC's mounted on a large heat sink. The nuers usually start with STK-xxxx. Find these IC's and copy the number off them. Usually the can be replaced by generics. You can order them directly from Mat Electronics 1-800-628-1118. Be extremely careful when you desolder these ICS the foils are easy to lift. Use desoldering braid(chemtronics) 10-25L. Also ask for BOB and tell him that Tom from TOM's Tv suggested him. This will insure you the lowest price. Also some times the current limiting resistors open up. Always replace both convergence ICS. In your case only one is bad. Replace both anyway. (they only cost about $12.00 @ Any further questions, contact me. These are great TV's and well worth repairing!!! Scrivitron

Jun 22, 2007 | Pioneer SD-582HD5 58" Rear Projection...

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