Question about Akai PT5598HD 55" Rear Projection HDTV-Ready Television

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I have no blue adjustment and my picture looks very funny

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  • Akai Master
  • 3,459 Answers

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Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Below are more details for both items. Also, complete repair kits with instructions and repair support are avail from site such as www.TvRepairKits.com

Common Problem #1) Convergence has gone out

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....



  • 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.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some pics of convergence problems.


I have no blue adjustment - 7859b01.jpg

e87380c.jpg
69189a5.pngSOLUTION #1

For more more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluiI have no blue adjustment - 578ba6c.jpgbr />
578ba6c.jpg


69189a5.pngSOLUTION

You can see some more examples and find a fix using this link on Fixya
http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Please do us a favor and rate this solution after reading

Posted on May 20, 2011

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6ya6ya
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Posted on Jan 02, 2017

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Lg 32lg70 picture was dark looking several days and now everything looks bright


With TV and cable box turned off, check all the wire connections on the back of TV and cable box by unplugging and plugging wires back in and unscrewing coax cables and screwing it back in. If the coax cables are a few years old, might be a good idea to replace, cause the ends tend to corrode.

May 16, 2016 | LG Televison & Video

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Poor Picture


Hello,

It's a convergence issue. Go into the main TV menu under video settings and look for convergence. If it has an auto convergence select that and wait a minute the TV will adjust itself and give you a clear picture.
If the TV does not have an auto convergence and just regular convergence than select this. It will give you a grid pattern on your TV and you have to move the curser (using TV remote) and adjust each "point" so that each line is perfectly white. If you notice red or blue anywhere on that "line" then you have to adjust using the up, down, left and right arrow keys to "line up the red and blue lines with the nearest white line. It taked time and patience to do, but when completed, all lines on the grid pattern should be pure white and you will have a great looking picture.
You have to do this will all TV inputs (Video1, Video2 and so on) the reason Zoom looks good, is because you never used that screen as much and so the lenses didn't have a chance to get out of synch.
RPTV's are made of the three lenses (red, Blue and Green) and as you watch TV, these lenses slowly get out of alignment. So you should do a convergence about twice a year to make sure nothing is out of whack.
Hope this help....

Jun 26, 2010 | Sony Bravia KDL-32V4000 32 in. LCD TV

1 Answer

Hello


Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....
  • 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.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some photos of convergence problems.

42d3683.jpg

7859b01.jpg

e87380c.jpg
Here is a quick test....

Using your original remote go-to the settings menu then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.

If you can't move them in all directions or cant move them far enough your convergence chips are bad and should be replaced. This is a common problem.

Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a fix

69189a5.pngCONVERGENCE SOLUTION

You can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Jan 03, 2010 | RCA R61WH76 61" HDTV

1 Answer

Our television just began having what looks like a 'double screen'...or the picture has a 'shadow'...and also looks as though the entire screen 'curves' ..at the top and bottom of the screen it is...


Hi


Thanks for using FixYa. First of all please check whether all the cables from your dish network are fine and connected firmly. If yes then you'll need to pull off the front of the TV, behind the speaker grill there would be a panel. Remove the panel and check for a black box hanging over there. It has 6 controls on it, 3 are marked as focus and 3 as screen. You'll need to adjust the screen. If you turn these too high you can damage the tube. So you need to do only a small adjustment. Turn the color off on the TV and adjust the red, blue & green controls up till you get a fine picture. Also adjust the focus until you get a clear picture.

And, if it doesn't resolve your issue then it is an intermittent blue picture tube, a bad blue driver transistor on the CRT board, a bad connection on the blue CRT board or a problem in the RGB coming from the video jungle IC. The price to resolve the issue will most likely run you about 300 to 500 bucks, unless it is the picture tube.

Please do rate the solution and revert for further assistance.


Thanks
Rylee

Aug 16, 2009 | Sony Televison & Video

1 Answer

Fuzzy Picture


Fuzzy is a funny word. I never use it to describe a picture problem. That because fuzzy can go too many different ways. There is snowy fuzzy, blurry fuzzy, grainy fuzzy, and demodulated fuzzy. If the set goes out of focus intermittently that has something to do with the focus ciruitry. If it goes grainy that is a front end problem, usually tuner related. The other types of fuzzy are generally associated with problems in video processing some where. So, which is it?

Oh, and BTW that unit has three small picture tubes in it, one red, one blue, and one green. It doesn't have a 'bulb'.

Feb 24, 2009 | Mitsubishi WS-65869 65" Rear Projection...

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Cool site. hi, i have sonny wega 42 inch 610 issue with blue


Its blue LCD mounted in light engine (optical block) and requires replacement.
Before, the solution was complete light engine replacement but now Sony Service Center will replace blue LCD only to fix it to reduce your repair cost.

Jan 30, 2009 | Sony Grand WEGA KF42WE610 42" Rear...

1 Answer

No blue just red and green tint


adjust the blue bias on the high voltage block .
it has focus and bias for all three colors

Dec 26, 2008 | Samsung PCL5415RB 54" Rear Projection...

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Tv duplicate image


your guns are off and need to be adjusted. your 3 guns (red, green and blue) are off and that would explain the funny colors and shadows. Have a tv tech come out and have a look, they can fix it for a reasonable price.

Oct 20, 2008 | Televison & Video

1 Answer

My picture looks funny on all four sides.


its due to the faulty convergence. the stk convergence ic on the main board which controls the picture alignment is faulty and needs to be replaced to solve this problem.any tv technician will do it for you at a very negligible cost. nothing to worry.thanks.

Sep 15, 2008 | RCA P52937 52" Rear Projection Television

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Grundig plasma


There is probably a fault in the video processor, or there is a setting for the user colour temperature that is not properly set. Call the authorized service for advice on how to proceed.

Jerry G.

May 13, 2008 | Televison & Video

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