Question about Philips 50P8341 50" Rear Projection Television

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50p842 tv i was told the blue gun needs to be replaced color is messed up any idea?

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The blue gun (CRT) is expensive around 400 if one is available. I know a site that sells used CRTs for phillip/magnavox for 135.00 heres the link if you would like to check them out. I am one of their repair/ support techs.
http://servicemanuals.vstore.ca/

Posted on Mar 20, 2008

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My grandfather has a Hitachi 50ux58b and is having double vision or shadowing -- whatever it's called and redness color fading-like. Was told it was a convergence IC that needs replaced -- uncle looked...


try not to do repair yourself. the tv holds high voltage even when unplugged. you could KILL yourself. If red is fading the convergence ic will not help. you need to replace all the guns. red, blue, and green. usually each tube or gun is around 300 dollars each.

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I replaced the crt coolant in my 62 inch phillips rear projection tv and the green and red are perfect but the blue is still out of focus when I go to the convergence the cross is perfect but the blue is...


hi,
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crt base

ok

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Yes it could very well do it. Could you rotate the TV or the safe? Or better still, place the TV on a wooden table.

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No Red color at all. The convergence feature does not work either. Lots of green and blue RCA Model D52W59


Red color gun has failed, which will make the picture over saturated with the other two colors(blue,green) the bad news is the three color guns need to be replace in a set(all at the same time) because if you only replace the red it will over saturate the older blue, green guns then your picture will be mostly red.Unfortunently in most cases it's not worth the investment, better off to purchase a new tv. Good luck !

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1 Answer

Yellowish monitor display


You have no blue gun transmission. Check your work around the tube and make sure you have good connections. Ohterwise it's in the blue gun circuitry.

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1 Answer

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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

Why does my TV have a red shadow on all the people and words. i've only had it 4 1/2 yrs


It sounds like the red gun is off. Your tv uses three guns(red,green and blue) to make the picture. sometimes one of these guns shifts a little and the colors get messed up and there are shadows because the gun is still trying to make the image, it just doesnt line up. This is a pretty inexpensive problem that can be fixed by most any tv technician for a small fee. If your pretty confident in your electronics know how, google adjusting guns and your tv and that should yield something.

Oct 20, 2008 | Televison & Video

1 Answer

Blue color tube/gun


TRITRONICS SELLS TO THE PUBLIC--LOOK 'EM UP ON THE WEB .TUNICA

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1 Answer

Dominant blue


Can you post to the party who has too much green how to adjust the video adjustments? They need to know so they can see if
its just a simple adjustment.
In your case, first turn the color level clear down to where you
have a black and white picture. As in the case of too much green,
question is if the picture is black and white or if there is a color
on the screen so its blue and white? I suspect it will be which
is typical when the guns start to fail. Likely the green and red
guns are weak in output. There are screen adjustments in the set that a tech can set up that may help some, but the only real fix is to replace the guns which is expensive and requires a complete allignment. All 3 guns need changing to get it back to spec and it is a good idea to replace the flyback for reliability. Get an estimate and likely you can replace the set for the same money.

Jul 26, 2008 | Mitsubishi CS-27205 TV

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