Question about Panasonic PT-56HX41 56" Rear Projection Television

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48" sony KP-48570

I had a repairman out and he said the convergences were bad. The blue green and red. He said it would cost $550.00 to fix it. I can't afford that. The tv has like ghosts. For instance instead of seeing 2 eyes, you see 4.
Two ontop of two. He said everything else was good on the tv. If this is what's wrong with the tv where do I buy the part and how do I know which part to take out and put the new one in. He said I could buy the part but then you have to focus the tv. I just think I need some advise. Serial # on this is 9008041 RA-3. It was manufactured in Nov. 1999.

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  • 2 Answers

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Hi there,
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Posted on Jan 02, 2017

  • 3037 Answers

SOURCE: Projection HDTV Pansonic 47" Curving blue and green colors on top and bottom of screen.

You will need to replace your two convergence I.C.s.They are two large IC mounted on a large aluminum heat sink.Replace both,look for any burned resistors near them,replace those if needed,and readjust your convergence. Good Luck

Let me know if you need any further help

Posted on Mar 29, 2008

  • 3 Answers

SOURCE: Problem with HD feed from satellite receiver

I just had my HD DTV installed this weekend, you have to leave it on 480p. I too purchased my tv in 2002. Per DTV, its an older model and you have to stay with the 480p to get the best possible picture. I have to admit, don't know what the 1080i looks like, but 480p is showing me a very good picture. Best I have ever seen on my TV.

Posted on Jul 21, 2008

  • 1 Answer

SOURCE: Sony KP 53v75 blue convergence will not adjust

My Akai PT 5598HDI has too much red and is dominant and convergence board IC's has been replaced. No significant result. On the convergence adjustment on for red is very focused in the center and very brigth and dim along the borders while blue is very dim and blurry. Focused has been adjusted. Your thought.

Thank you,

Posted on Dec 01, 2008

  • 4234 Answers

SOURCE: convergence problem ,Help Please

Something is not right here. Is there any possibility that you can get the circuit designation (Rxxx) of the resistors that were "incorrect"? I am not aware of anything like this that can cause the "memory to be erased". The only memory in that area would be the factory convergence settings which can be modified from the service menu. Please try to supply the resistor IDs and I'll check on this.


Posted on Feb 13, 2009

  • 41 Answers

SOURCE: blue & red ghosts

Sounds like your convergence outputs are bad and you may also have some low value resistors that need replaced. That set probably has 2 outputs. Both will need replaced even if only one is defective. Kinda like headlights, if one is bad, the other isn't far behind it. Excessive heat kills the amps after a few years of use.

Posted on Jul 18, 2009

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1 Answer

Have three different color images (red,blue,green)

It is symptom of convergence output ICs failure, replace convergence output ICs located on D board to fix this problem.
Call local tv repairman to replace defective ICs if you do not have prior experience of electronics stuff repair.

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Its convergence ICs, the STKs gone bad. The repair can be done only by person who knows about PCBs with embedded components. and good with soldering. You can down load the service manual for your tv from this fixya site tech support and decide how you would like to do it. You can check for costs and more FAQs on If you are not sure best bet is to go for professional repair. Thanks if you took time to vote for me.

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I had a similar problem with red halos around images on my Hitachi rear projection TV. The problem was that the red convergence chip burned out. I replaced that and that fixed the problem. I found several forum posts on similar symptoms and fixes for Sony rear projection TVs by searching for "Sony rear projection convergence problem." Likely you've already tried the auto-convergence function for your set, if it has that.

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common failure of this one is convergence.when unit is on does the blue or red not sit ontop each other.go into menu find convergergence see if you can adjust the red onto green then blue onto green.if not you have bad convergence ics part number STK392-560 use STK392-570,also check pico fuses(yellow) all 5 amp location ps8006,ps8002,ps8004

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This is a convergence problem that could be as simple as bad connections on the pins of the convergence ICs or defective ICs. If you can solder, you can fix this yourself. The parts should be around $25-$50. Let me know if you wish to attempt this repair and I'll supply additional details and instructions.


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Can you use a meter and solder? If you I can help you fix it. If not you will need to call a repairman. let me know what you would like to do!

Tim Nolan

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Replace STK-392-110s or 150s upgrade with 180s replace both ics.

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Sony KP-43HT20 ghosting effect.

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