Question about Akai PTH5498 54" Rear Projection HDTV-Ready Television

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Color yellow background no blue

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Re: color

Probably contaminated fluid in blue crt. Have experinced Samsung/Akai shop change and re-align. Probably cost $250-300

Posted on Dec 20, 2007

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My hitachi 53udx10b was supposedly just serviced but the picture is extremely blue. Have tried adjusting picture to no avail. Help.

I am going to tell you a simple thing to do to know what your problem may be.

With the set on turn the color all the way to zero. Go to a channel if you can that is in black and white. What color is the screen?

If the answer is that it is blue in the background whoever serviced the set did not and could have removed front speaker grill and inspection plate behind it; there is a black plastic block with three screen controls (red,green,blue) and 3 focus controls (do not touch the focus ones.)

I suspect if the blue screen is there a slight adjustment of the blue screen down will correct this.

The picture with the color at zero should be black and white or gray. If blue is background color it will also be with color.

This is called gray scale; picture with color off has to be gray or black and white.

Before you rate this solution if you have questions make a comment right here and I will advise you.


Jun 29, 2011 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Blothes of color in center and right side of screen. Very noticable when it's a light background.

May have burned CRT(s), (if you are not talking about convergence.) Burned CRT shows when that CRT (R,G,orB), does not show in an area of the screen where it should. Check bright white color = full R, G, and B CRT brightness. Gray = mid RGB brightness. Yellow = R+G(no B), Blue-green = B+G, no R, etc.

Apr 12, 2010 | Sony KP-53V75 53" Rear Projection...

1 Answer

Having a big yellow spot background in the middle of the picture.

Hi , it seems you are experimenting a light engine problem.Here's how your tv works: Basically there's 3 LCD chips that create the colors and image by blending together.When these chips start to melt you will get those blue spots, pixilation even vertical lines.You will need to replace the light engine. Have a blessed one!

Apr 09, 2010 | Hitachi 50VS69 50" Projection HDTV

1 Answer

Samsung DLP Facial Colors off after changing color wheel

Do you mean that red and blue are reversed? If so, you may need to remove a jumper, see end of linked article. Pinkish-yellow or orange sounds like a good description of skin tone, but perhaps too intense. If the color is too intense, can you just lower the color level with the color control? Or can you just change the tint with the tint control? Otherwise, see including the comments at the end.

Oct 11, 2009 | Samsung HLN4365W 43" Rear Projection...

1 Answer

Blue color bleeding

the color issue is most likely the crt coolant needs to be replaced you can get the phillips CRT coolant replacement kit at the following link which contains the coolant and the instructions on how to do the replacement.
The crack you hear could just be the speakers or a intermitant ground problem in the audio circuit more likely the spealers if its only on strong Bass

Apr 03, 2009 | Philips 55PW9363 55" Rear Projection...

1 Answer

Blue out of focus; casting blue "glow"

Try changing the coolant in the blue tube. Contaminated coolant will give a halo look to the affected tube and you will experience difficulty focusing that color.Phillips/magnavox's blue is the tube most often affected with the contaminated coolant issues.

Mar 01, 2008 | Projection Televisions

1 Answer


Some people have a scale on their T.V. somewhere, or for most cable users it shows on the menu an area where you can change contrast, color, tint, brightness, ect...

Dec 08, 2007 | Sony KP-46WT500 46" Rear Projection...

1 Answer

Blue and yellow color

Blue should converge on top of "yellow".Bad connection(s)

on blue convergence IC.Replace both IC's for durable repair.

Check pico fuses.Reset convergence alignment.

Oct 17, 2007 | Samsung HCL552W 55" Rear Projection...

1 Answer

Blue out of focus; casting blue "glow"

Be very carefull replacing the fluid as leaks will short stuff out and are messy.

Jun 12, 2007 | Philips Magnavox 51MP392H Rear Projection...

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