Question about Panasonic PT-53TW53 53" Rear Projection HDTV-Ready Television

1 Answer

Has bow on bottom of screen-

My picture has a big bow on the bottom of the screen.I tried to do the convergence but the pluses on the bottom do not even line up on top of one another.Can you help?

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  • sttcharris Jul 20, 2008

    Just one question why is it only on the bottom.Could it be from my son-who is only 3 running into it and hitting it with his hands?If so would it be the same thing?

  • sttcharris Jul 20, 2008

    Can anyone suggest where I can get a service manual for my tv-PT53wx53g? I have been looking online at the websites but not sure which one I should pick.Thanks for your help.Oh and do you suggest the STK392-180 instead of the 110? I'v been reading that the 180 are suppose to be an upgrade?

  • sttcharris Jul 20, 2008

    So 180 are no good? I am so confused because I was reading where people were saying they didn't burn out like the 110. I am looking for ones that will not burn out quickly regardless of price- so in your honest opinion-if this was your tv which ones would you put in?Thanks again.

  • sttcharris Jul 20, 2008

    One last question-where can I buy them and know that they are not the cheap ones.Is there a certain brand I should be looking for like sanyo?Thanks again

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  • Panasonic Master
  • 8,617 Answers

Need to replace both convergence ICs they are both STK392-110 you can get replacements at the following link with free instructions.
http://servicemanuals.vstore.ca/

Posted on Jul 20, 2008

  • 2 more comments 
  • Sonny Berry
    Sonny Berry Jul 20, 2008

    95% of the time its the convergence ICs that have failed and that causes the bow youre describing and the inability to adjust the colors into alignment. the other 5% it is something else, the rule of thumb is to replace the ICs.

  • Sonny Berry
    Sonny Berry Jul 20, 2008

    The highest I would go is 392-150 as I have heard the panasonics dont do well with the 180 ICs in them. The link I posted above has the service manual for your model the PT47WX53 has your model coverd

  • Sonny Berry
    Sonny Berry Jul 20, 2008

    The 180 ICs run cooler than the 110 ICs do, However we service alot of rear projections and I have seen cases where the 180s didnt perform as well as the 110s in panasonic HDTVs so I always recomend the 150s for panasonics, as the differences in durability between the 150s and the 180s isnt that much. Also when people talk about the upgrades from 392-110 up to the 180s it will work in most models in fact some models such as Hitachi can safely go from 392-110 all the way to 394-160 but other models will exhibit problems. Its just that the 392-110 are the most widely used in the majority of rear projections sets, so the upgrading actually depends on the model more than the IC numbers.

  • Sonny Berry
    Sonny Berry Jul 20, 2008

    I know the site that I posted has ones that I have never had any problems with. Vancebaldwin .com has them but can be alot higher priced. I have always used servicemanuals for mine, thyere about 24.00 each vance baldwin will also have them.

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I have an older model rca rear projection tv. The problem with the tv is that the picture bends into curve after about 5 minutes after it has been turned on. Please help.


Check the convergence IC's for cold solders, check for leaking capacitors in the area. Check the voltage regulator with a Variac.

Usually these sets just need the 2 big convergence IC's replaced with new ones. Clean all 3 picture tube lenses, mirror and screen. Get the original RCA remote that came with the set and MANUALLY align the convergence.

Rarely the bow on the bottom of the screen is not repairable.

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My 52" RCA P52937SG screen


the part is called the convergence ic. replace those ics.

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The pic is off there is bowing at the top and


Picture becoming distorted at the top/bottom of the screen is due to the convergence circuit going bad, and is a common issue with big screen projection TVs.

The convergence circuits will need to be repaired, which will generally require some soldering and ordering new parts for ~$75. If you want to get a TV technician to repair it then you will probably be looking in the region of about $300 for a repair.

Here is a link to repair guide for a Mitsubishi TV. Obviously a different model, but the convergence circuits are generally the same for most makes/models - this will give you an idea of the work involved to fix it: http://www.techlore.com/article/22530/DIY-Repair-Replacing-Convergence-IC-s-on-a-Mitsubshi-TV-Set/

Nov 17, 2009 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Lamps are out of alignment along with a big bow in the picture


you have a convergence circuit problem it needs to be repaired

Sep 15, 2009 | Televison & Video

2 Answers

I have a 52' big screen and the picture is shoing


Ur convergence is dead,go to ebay.com buy the convergence repair kit.Find out ur make and models,and manufactures of ur TV buy it.
All big projection DLP have this prob. one time or other every manufactures,Sony,Samsung,RCA,many others.

Aug 26, 2009 | Televison & Video

1 Answer

Double Vision & Bowed Screen


Chances are that the convergence amps are bad.
If those are mounted on a separate board, replacing the board would be the easiest thing to do. Running the magic focus or touching up the convergence in the customer menu may be required.

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1 Answer

Cheap Fix?


I will strongly advise you to replace the two STK392-120 as a pair. and this will cure your bowing picture problem. You may need to re-converge your set. best of luck.

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2 Answers

Sony kp-53s35 bowed picture on top and bottom


Good day, scotty1980;
Scotty, welcome to 2008. Hold onto your wallet, the has a convergence problem. Which means that the TV's convergence IC's are more than likely bad. The average cost to repair is about $450.00. Unless you are electronically friendly, I would call an authorized service dealer for repair.
Good luck, big IRISH. PS; Hope this was helpful.

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1 Answer

Problem with convergence


bad convergence ic's
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

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Has anyone had problems with connecting an 'HDMI to HDMI + SPDIF + RCA L / R Audio Extractor Converter (HDMI input,HDMI+ Audio output)' to a Panasonic PT-53TW53? I have a TiVo Premiere hooked up to my Panasonic PT-53TW53. I use the HDMI out, and RCA R+L outputs on the TiVo, and hook up to the digital in connections on the TV. The conversion of the HDMI out is via an HDMI to DVI cable. This has worked perfectly for years, but recently I wanted to disconnect the TiVo and replace with my Roku or Amazon Fire TV. Both have a single HDMI output. So I purchased an AGPtek HDMI to HDMI + SPDIF + RCA L / R Audio Extractor Converter (HDMI input, HDMI+ Audio output) box, hooking up the HDMI output from the Roku or Fire TV to the input on the extractor/converter, and simply disconnecting the HDMI to DVI and RCA R+L outputs from the TiVo, and plugging them into the outputs on the converter/extractor. The converter/extractor has a 3 position switch: PASS, 2CH audio, or 5.1CH (via and SPDIF or Toslink cable). I have had 2 of these converter/extractors, and with both the Roku and Fire TV I got the same results with both converter/extractors: With the switch on 2CH, which is where I understand I should get HDMI video and 2CH RCA audio, all I get is the RCA audio. No video. If I switch to PASS I get video with no audio. Of course on the 5.1 setting I get nothing, since the TV does not support SPDIF. Yet I see reviews all over Amazon indicating folks are using this converter/extractor for this very purpose, and it is working fine. I can't possibly imagine that it is some sort of incompatibility issue with the TV, since the TiVo has worked (and continues to) fine for years. Any ideas?

Feb 28, 2017 | Panasonic PT-53TW53 53" Rear Projection...

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