Question about Akai PT5492S 54" Rear Projection Television

2 Answers

PT5598hdi This morning there was a click while watching tv and I suddenly had ghosting, bow tie effect and 2 stripes of color on each side. Looking at the site I figued it was the convergence ICs. Took out the board and still had the same effect. I had 2 new ICs replaced and brought the board home. Put the board in and only had sound. The screen is blank. Turned the tv off and unplugged it. Plugged it back in and now I have just blinking of the red light between 7-10 times and then nothing. Last year I also had the board and power supply replaced. I just spent the last bit of money I have! Great huh. Just my luck. Is there anything I could try now. Thank you kindly for your time all of the sudden I have the same type of problem I think. looks like everything is in 3D. the bowtie effect is going on. I really can't afford to have this fixed. What should I do. Is it just some type of setting or should I just trash the damn thing?

Posted by valygrl on

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Edward

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The most likely cause is shorted convergence chips and possibly a few pico fuses.

These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony,Samsung,JVC,Philip Magnavox,Panasonic,Akai,PioneerPT5598hdi - 2_bing.gif Hitachi,Mitsubishi,Zenith and others.
You can get a convergenece repair kit with instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2
Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

You can see some more examples and find a fix here http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Posted on Apr 18, 2010

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Todd Hill

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If its shorting out your conv. ics you need to ck for a shorted yoke

Posted on Jun 18, 2010

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1 Answer

How do i fix my samsung 1080i hdtv. It has a double picture and is red and blue, and also looks like a bow tie effect


The tv have a problems known as a convergence problems,it dead.Tv have colors lines R,G,B mis alignments,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 too.These parts on the tv convergence board,must be replaced to solved pictures convergence problems.The shop,will cost u like $300-$350 for parts and labors.

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Bow tie looking picture with 3d color mis-alignment


you have lost convergence. First thing to check is to see if you are missing the convergence option in the customer setup menu. if you do not have this option then i suggest reading the article in the tips and tricks section entiltled "the fl231 fuse problem" this is a common and sometime easy repair if you do have it then you might need a convergence power board

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This is convergence. First read FL231 fuse problem in tips and trick section to see if this may be the problem

Jan 22, 2009 | RCA HD52W58 52" TV

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Watching TV and top 1/3 screen ghosted by colors


on this type of tv each gun is controled by hor.and ver. chip together. it is on the board that controls the convergence of the tv. some manufactors have recalls on problems like this. i dont know if this one does but it may. you can check with mitsub. i do know that this part is about 250.00

Jan 02, 2009 | Mitsubishi WS-55511 55" Rear Projection...

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Picture is suddenly "bowed" and the convergence is askewed at everypoint but center.


the problem is the EW cicuit of the deflection cicuit. this is a component level repair call a tech. the EW or East West correction is apart of the horizontal deflection. IC431 is the pin amp.

Feb 06, 2008 | Akai PT5598HD 55" Rear Projection...

1 Answer

Sudden discoloration, ghosting, bowed horizontal lines in top and bottom of picture


The most likely cause is shorted convergence chips and possibly a few pico fuses.

These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony,Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer2_bing.gif Hitachi,Mitsubishi,Zenith and others.
You can get a convergenece repair kit with instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2
Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

You can see some more examples and find a fix herebb0cf99.png http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Nov 10, 2007 | Samsung PCL6215R 62" Rear Projection...

1 Answer

Tv needs fixing, advice appreciated


it would intermittedly display a bowed rainbow effect and the picture would jump to that/black/back into focus. it was nothing but due to change of place due to decaussing ckt to take care of magnetic effect of earth. this morning i turned it on with a black screen. It has audio but no video. your problem it sounds me that it is due to loose contact or loose connector or due to video ckt. as you said that sudio is ok. if you are not tech person call skilled tech to fix it .it is not a major problem. hope this will help you please let me know what happened.

Sep 29, 2007 | Toshiba TP50F60/61 TV

2 Answers

Sudden discoloration, ghosting, bowed horizontal lines in top and bottom of picture


The convergence ICs probably have a cracked solder joint on the foil side of the circuit board. Re-flowing the the solder would help. I will always replace the convergence ICs when doing this job. The labor remains the same and you will have to pay a few extra bucks for the parts. To fix this yourself, you will need to be able to identify the two convergence ICs, have a basic knowledge of electronics and be able to use a soldering iron. You will also have to do an alignment through the service menu.

Apr 01, 2007 | Samsung HC-P4752W 47" Rear Projection...

2 Answers

Panasonic PT 47WX51 TV troubleshooting


Your TV most likely has a Convergence Chip Failure ( common problem )

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.

Mar 25, 2006 | Panasonic PT-47WX51 47" Rear Projection...

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