Question about Pioneer PRO-520HD 53" Rear Projection Television

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Picture has a red hue to it. I have checked the convergence and the lines up and stays put. The TV was working great when I turned it off and when I turned it back on this condition was present.

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  • Expert
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The problem could be a few things, check your color balance and contrast or try adjusting the guns. If its a fuzzy red haze, kind of like a halo around things, it may just be that the crt coolant fluid needs changed. I, myself, have had a problem with the tinted halo in my rear projection Toshiba tv, I replaced the crt coolant fluid and the picture returned to good as new.

Posted on May 24, 2010

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Http://www.kallhovde.com/pioneer/tricomp/Audio/Misc/_SERVICE%20Information_230-pages.pdf
www.pdfee.com/search/panasonic+rear+projection+tv - United States
www.pdfee.com/.../Toshiba%20rear%20projection%20training%20manual - United States -
www.scribd.com/.../Philips-DPTV400-TV-Projection-Training-Manual
These links above are for top, your service manual, below that are 3 training manuals, these are used to teach the engineers how to troubleshoot and repair these items http://www.tvtechcenter.com/pro-520hd.html

Posted on May 15, 2010

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1 Answer

Red hues all over the images on screen


The TV is a plasma screen. There are several circuit boards that will go bad over time that affects the picture quality. TV Parts Universal TV Stands DLP Chips ShopJimmy You can get the parts here and replace those boards yourself.

Apr 10, 2017 | Panasonic TH-42PZ700U 42 in. Plasma...

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Both the picture and sound work when the TV is turned on, yet the picture is distorted like a double picture and has a yellow hue to it.


Sounds like you have a convergence problem. If you go into the setup menu of your TV, there should be some settings to adjust the red, green and blue hues and re-position them so each color matches up. If this does not work or if you don't have a menu, your TV *might* have a circuit board with several plastic screws on it. These adjust the picture and it's a very tedious task to re-align each hue correctly.

My projection TV is an older model from 1995, which is probably why it has this circuit board in place of a convergence menu built into the TV.

If adjusting the convergence still doesn't work, you might need to purchase a new convergence chip.

May 20, 2011 | Sony KP-51WS520 51" Rear Projection...

1 Answer

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

BOW PICTURE AND HUE GREENS REDS AND BLUES LIKE SHADOWS


the tv had intermittant solder connections already but h\they appeared when the tv was moved to hook up the digi-box. The solution could be as simple as resoldering the power convergence amps.

Aug 06, 2009 | Televison & Video

1 Answer

Convergence and lamp problems?


Well I hate to be the bearer of bad news but besides the convergence issues you have a bad red picture tube. Us techs refer to your problem as a 'floating grid' in the red picture tube. More bad news is that the tube is no longer availible. The only solution is to have a professional remove the red tube assembly and ship it off for rebuild. A company called Video Display does this work reasonably and I've sent several to them with great results. It takes about three weeks and the whole repair is very spendy, around $400 to $500. Sorry for the bad news.

Jun 03, 2009 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Some times the picture gets a green and red hue and the menu turns from green to red ,


HI. this is being caused by a faulty convergence chip that is located on the convergence board. simply replacing this chip or replacing the entire board will fix this issue.


May 21, 2009 | Sony BRAVIA KDL-40S2010 40 in. LCD...

3 Answers

Convergance


you need to have both convergence ics replaced STK392-040 (2).resistors 3.9 ohms they will be open.

Jul 27, 2008 | Samsung HCN4727W 47" Rear Projection...

3 Answers

Bad color


Your TV most likely has one of two possible problems.

Problem #1: 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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Here is a quick test....

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

Try to adjust the red and then the blue convergence.



You should be able to move them up, down, left, and right.

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

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.


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 fluid changed.

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TV set after fluid change

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2c07611.pngSolution #2


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.

Oct 26, 2007 | Philips Magnavox 51MP392H Rear Projection...

2 Answers

I have 47 inch with double color in picture, reds and green


http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

convergence amp ic bad

Oct 14, 2007 | Samsung HCL552W 55" Rear Projection...

2 Answers

Very fine red lines across srceen


It is an adjustment, but it's an adjustment you may not want to do. It's the red screen control. It's located behind the front panel so the entire front panel has to be removed in order to access it-which will expose you to hazardous voltages. if you like, I can post detailed instructions on how to get that front panel off, it's kinda tricky.

Jun 13, 2007 | Sony KP-51WS500 51" Rear Projection...

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