Question about Panasonic PT-53WX42 53" Rear Projection Television

4 Answers

Convergence and Power

I replaced the STK392-110 convergence amplifiers. When I turned the TV on, the power kicked off after about 3 seconds and the power light blinks 3 times. The first time I turned the power on, I could smell something burning. Also, there is a resistor that is located on the board at the +18V Convergence that is overheating when I turn on the TV.

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  • Sleepless14 Jun 01, 2008

    It looks like I could wear 3D glasses and the picture would be clear. I don't know where to begin to fix the proble because I have tried all the Configure screens and crosshairs?? 

    Help!



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It looks like I could wear 3D glasses and the picture would be clear. I don't know where to begin to fix the proble because I have tried all the Configure screens and crosshairs??

Help!

Posted on Jun 01, 2008

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Hello,
I need to change the same STK392-110 convergence amplifiers. Where can I buy it ???? and how much it you cost ???
thank you

Posted on May 29, 2008

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There are 2 pico fuses in that area that may have open up as well. Check for those too.
Dan

Posted on Apr 18, 2008

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I would suggest to double check your solder joints. Since you mention that a resistor is overheating, you could have shorted 2 leads when soldering the STK ICs.
Try using a magnifier tool with magnification 2X to 4X to locate any possible solder defects.
Let me know if you need further assistance.

Posted on Apr 18, 2008

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Posted on Jan 02, 2017

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Recheck you solder connections on the IC's if all is well then unpluged the power connector going or nearest to the convergence circuit. If power stays on then one of you IC's are faulty or you may have a bridged solder joint, where two of the soldered pins are touching each other, Try cleaning all the pins on the board with a toothbrush and alcohol to remove any solder beads that you may of missed, causing a short on the pins..If the set was working before you replaced the IC's then just retrace you steps and make sure all plugs and connectors are in their right place..

Oct 20, 2009 | Televison & Video

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Stays on for 2 seconds and switches off


The convergence amplifiers need to be replaced.
This set may have one big amplfier chip rather than two.
The chip(s) will be on a big aluminum heatsink.
There may be bad resistors related to these chips, as well as one or two fuses that are open.
I've replace many convergence amplifiers.
If you have good soldering skills and ac test fuses and resistors, you can do the repair yourself. Caution that even with the set unplugged, there could still be dangerous voltages present on some components.
Search this site for specific convergence repair related to your set.

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My TN55X81 is showing the same problem.


Replace the IC's with STK 392-110T.
Toshiba has a Service Bulletin on this problem.

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Unable to align red crosshairs in horizontal range


No there are no quick fix options for this fault. The convergence amplifiers operate similar to a high power audio amplifier, so if there is an impairment anywhere in the system, it will result in distorted audio, or in the case of television convergence amplifiers, one or more colors won't align. The convergence power pacs need to be replaced and the out of tolerance precision resistors located near the power pacs need to be carefully checked and replaced as necessary. And the power supply fuse links to the power pacs checked and replaced as needed.

It is also possible that there are root faults that cause the amplifiers to go bad which include bad connections or a bad digital control module. This repair is possible for anyone having basic electronics knowledge and soldering skills. After the above repairs are performed it may be necessary to perform the static convergence realignment procedure using the outer cross hairs as you mentioned, and realigning them.

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Tv doesnt work


You either have faulty convergence chips, faulty soldering, or you forgot a wire.


FYI - 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.
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2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together convergence repair kits for most models.

The kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, etc. Everything you will need to do the repair yourself.

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Panasonic PT-56TWD63 When I turn it on, the power light comes on for about 10 seconds then turns off and blinks 3 times every 3-5 seconds, but no power and light will not stop blinking until TV id...


3 blinks is due to the convergence ICs you need to replace both STK392-110 ICs . you can get replacements at the following link with free installation instructions
http://servicemanuals.vstore.ca/

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If the front power light is blinking three times then your TV has a problem with the convergence. You can get the correct replacement parts and full step by step photo instructions from www.TvRepairKits.com

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NO POWER TO TV


This sounds like a bad convergence board.
You didn't mention the model but I bet its a samsung rear projection HDTV.
If the convergence board fails, you can diagnose by pulling the power leads to the 3 convergence circuits, then power on the tv, if it lights (picture will have very bad convergence) then that is most likely the cause.
You can usually buy a new convergence board for about $80-$100. Look on eBay by the make and model of the TV.
And its real easy to replace.

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