Question about Philips 9P5544C 55" Rear Projection Television

2 Answers

Horizontal bow and shadow

My 55? projection TV top of picture is bowing down and the bottom is bowing up. There is also a very pronounced shadow in the picture. I have not been able to find a service manual for this model#.

Posted by meoff on

  • meoff Oct 04, 2007

    If someone knows were I can get a service manual that would help. I replaced both ICs #STK392-110 and checked all resistors and 3 fuses, they are all good. When I go into setup to align the cross hairs I don?t see any blue at all, the word blue does not even show up in the text line. The red shows up brightly but I cant move the cross hairs. What do I look at next?

  • meoff Oct 30, 2007

    Terryfic

    I’m not shire how this site works but I added a comment a few days ago about putting the convergence board in another TV and it works just fine. My problem is not the convergence board

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2 Answers

Edward

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  • Philips Master
  • 3,459 Answers

Common problem with the older projection Magnavox TV set. The opto IC chip has failed. Try www.magnavoxhelp.com - They have instructions and kits on their site.

Posted on Jul 04, 2008

  • Edward
    Edward Dec 18, 2008

    If you have any of the following problems you may want to check the site www.tvrepairkits.com for a repair kit. Most of the issue below are fairly common with the older Magnavox projection sets. 
    Symptom: Screen shrinks and expands - may or may not correct itself after the TV warms up. After a few days, weeks, or months of having the shrinking/expanding problem you may loose all audio/video but the power light will remain lit!

    (Note: The below symptoms typicaly occurs after having the expanding/shrinking screen problem above)

    Symptom: No Audio or Video but power light is on

    Symptom: Audio works but no Video. Power light still work

    Symptom: No Video. Audio is intermittent. Power light still works


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Vista Electronics

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  • Master
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Replace convergence IC's--then re-check convergence alignment in servicer mode,if necessary.

Posted on Oct 03, 2007

  • Vista Electronics Oct 29, 2007

    MEOFF,

      Sounds like your problems are self-inflicted! I've been there

    many times in my 35 year career!!



    1) were the correct parts installed-- STK392-110 or 120???

    2)After soldered in, did you confirm with your eyes and a meter

      that you did not short two or more pins together? Cross check

    by comparing one IC to the other,pin for pin.

    3)Did you use first quality,excellent OEM or better IC's?For

     instance,STK392-110 subs to STK394-160E in Hitachi, so that

     would be the best choice.

    4)Did you use cheap,generic replacements? They can fail

       on contact or within a short time of use!! 

                 Please let me know,I'm very interested!.......T.

  • Vista Electronics Oct 30, 2007

    Sorry to bark up the wrong tree with the wrong dog!

    I missed your comment about the board swap!

    Obviously, we must look elsewhere----how about the power supply?--Check all fuse devices,pico fuses,etc......T.

    Probably need service lit. after that.....1-800-851-8885.??

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2 Related Answers

Anonymous

  • 105 Answers

SOURCE: 9p5544c102 Horizontal bow

is the blu crt even turning on

 

Posted on Oct 13, 2007

skippy101

marco amezcua

  • 143 Answers

SOURCE: 9p5544c102 Horizontal bow

lookin the main power supply check for pico fuses somtimes they go bad, turn up your sreen voltage on your blue look see what kind of pic it gives you

Posted on Nov 03, 2007

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1 Answer

My rear projection television is showing a double picture with the blue out of allignment. It also shows a bow on the top and a bow on the bottom.


The tv have a problems known as a convergence problems,tv convergence board it is dead.Tv have R,G,B colors lines mis alignments,have colors pictures shadows or 3D pictures look alike?Yes.The tv convergence board it is dead.Must require replacing 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board to solved the tv picture convergence problems.The tv shop,will cost u like $300-350 for parts and labors.

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ok meoff check the convergence circuit. shadow in the picture is defective convergence circuit... replace a new.

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Ur tv it beginning to create and will develope a simtom call "Convergence alignment"These problems will delope in to the picture will have shades of colors like red or blue shadows,the picture bows in coners and colors will misaligns,the picture look like u watching a 3D movies,and the tv sometimes,just die and making chirpings sound.This problems very common in DLP tvs,it will develope just sonner or later that all.The covergence problems,the only way to fix are to take the tv aparts take out the Pc board call The Convergence board.Change the 2 STK convergence ICS,and some or all it supporting resitors and pico fuses.

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http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
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