Question about Hitachi 50UX57B 50" Rear Projection Television

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Pikish Hue and curved colored lines

After the TV warms up for 10-15 minutes, the screen goes pinkish with red and green curved lines throughout. You can still make out the picture, but it is clouded. The problem appears to be getting worse - meaning it takes less time to cloud up.

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Re: Pikish Hue and curved colored lines

Sounds like the convergence amp are heating up and going out. you can look for the amps and see if there is a loose connection on the trace and if you can solder you may be able to save them or just replace amps with orginal. This is sometimes caused by moving set around, Set being so heavy it can not take a joult like the direct view sets

Posted on Aug 12, 2007

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Tv screen is high in green color what settings do I need to be on

If your TV has a color temperature setting; it is probably on medium. Try it on warm. This will decrease the amount of green and increase the red.

Otherwise you will need access to the tint/hue controls; adjusting it more toward red will help.

Dec 21, 2014 | Projection Televisions

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Letters and numbers are 3d and curved picture


red, green, and blue lines curve across the top of tv is cause by defective convergence STK IC or you have open resistor at convergence section. if you have defective RGB Color vertical ramp probably you have defective STK IC..


Aug 02, 2009 | RCA D52W23 52" HDTV CRT TV

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Sony, tv comes on color fine, then turns red

I had the same problem with my TV, but the hue was blue. I was told that not only did I have to replace the picture tube that wasn't staying on, but I would have to replace them all because they would not mix properly. After much investigation, I found that there is an adjustment for a variable power supply to each tube that can brighten and lighten each tube. I adjusted the RED pot and my picture color issue was resolved! To access this adjustment you must remove the front panel on the TV. At the bottom corners there are two small screw covers that you must remove. Then un-screw the screws under the covers. Then pull the front panel off of the TV, (it hooks under the top near the screen so it will swing out from the bottom). Now remove the wooden panel in the center, (four screws). The pot adjustments are at the bottom of the TV. They are marked for Red, Blue, and Green. They are extremely sensitive, don't turn them much! If you over adjust you will get red, green, or blue lines on your screen. Adjust back down to remove these, (this is also the remedy for removing these lines that can appear over time). Good Luck and God Bless!

Mar 17, 2009 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Blue Horizontal arching lines, Blue hue at power on

if you take the front cover off the tv, you will see 6 little nobe, the top 3 are focus, bottom 3 are brightness, should be RED-BLUE-GREEN in order from left to right, find the one that is blue, turn it down a quarter turn, should fix the problem

Dec 31, 2008 | Sony KP-46WT500 46" Rear Projection...

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I have a KP-65WV700 and the screen looks a lil to green

OK, I'm the guy that was having the same problem, but had a blue tint to the screen. I also had blue lines running across the screen, and when I followed the steps below that were posted by another user not only did the lines disappear, but the blue haze vanished as well. My tv looks like it's new again, so you may want to try this:

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I have fixed this several times on my KP 65WV700

As Slinteriors posted if it is a thin curved line you need to adjust the screen control, it's sorta like a brightness for each color, and if one color is too high it will produce a thin curved line.

The best way I have found to get to the controls is by removing the lower grey speaker cover front the front of the TV. There are 6 screws if i remember, 3 on each side. Then it snaps off, seems like its going to break but you have to pop it off pretty good.

Once its loose you have to remove a cardboard like cover plate in the center that will give you access to the small controller board.

Now be very careful while experimenting on which knob controls which colors. Turn them very slow, if you turn to fast you will cause your TV to shut down. If this happens, turn the adjustment back to original spot and turn TV back on and take it slow.

Adjust the correct color until the line just goes away. Its easiest to do this with a black screen.

Nov 18, 2008 | Sony KP-65WV700 65" Rear Projection HDTV

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Faint red lines in a curved arch like pattern

Is there a cheaper solution? $600 sounds like you just throw it away to me...

Aug 02, 2008 | Sony Grand WEGA KDF-42WE655 42" Rear...

1 Answer

3 curved lines top & bottom/blurred picture

This indicates a convergence problem..convergence power supply probally.. however ive seen 2 other cuicits cause this ..

Sep 24, 2007 | RCA HD52W59 HDTV Projection Television

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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Problem with color

Yes you have a problem in the red crt driver board. Most likely the driver transistor is failing. This is a component level repair, so if you have no experience with TV repair, play it safe and call in a trained tech to assist you in this matter. Good Luck

Jun 05, 2007 | Mitsubishi VS-50609 50" Rear Projection...

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