projection tv

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bob ryan
projection tv

the white raster on my tv screen is yellow haw doi repair this

thanks bob

zapdbf
Need a model, brand and a

Need a model, brand and a better discription of your problem.

bob ryan
panasonic pl43 the white is

panasonic pl43 the white is yellow looks like the screen yellow started on the bottom of screen and is working its way up the screen most of the screen is yellow.

zapdbf
If this is a television in

If this is a television in the usa pl43 is not a good model, if you have white turning yellow, you either have some kind of white balance issue, or somthing is wrong with the red, your picture may tint yellow, greenish color. I don't know what kind of tv we are talking about (plasma, lcd, lcd projection, tube, older projection tv) a good model will help.

Larry Dillon
BOB, look on the back of the

BOB, look on the back of the TV set and post the complete model number and or chassis number please.

bob ryan
larry here is the make and

larry here is the make and serial # hope you can help

panasonic pt43lc14 ser#j4aa15703 90%yellow top is white

zapdbf
Ok, it is a lcd projection,

Ok, it is a lcd projection, does anybody smoke in the house ?

bob ryan
I discovered this yellow tint

I discovered this yellow tint  after i replaced the lamp

zapdbf
am trying to understand what

am trying to understand what you are telling me, but i am still not absolutely sure, 

Probing Questions; 

did this only happen after you changed the bulb?please clarify about the yellow tint creeping up the screen?

is the whole screen yellow now ?

Can you see the color blue, red , on scenes that have them as deep colors ? - in other words is a red item on the screen or a blue item on the screen coming up black?

bob ryan
no the colors look ok the

no the colors look ok the raster is yellow  creeping up the screen the very top of screen still has

a white raster the bottom of screen is all wellow

zapdbf
Ok, I would have to look at

Ok, I would have to look at the tv, i am not getting enough information to make a good judgment.  but without looking at it with the information i have at this point i would suspect the light engine, or the lcd drive circuits. but i cannot say for sure what is happening. It could be a gamma correction circuit/white balance circuit as well. Maybe some other tech here has seen this before and will have a better opinion than i can render.  

usafbrown
anyone ever figure this out ?

anyone ever figure this out ? my inllaw's tv is doing the same.

h20man
I have a LG DLP Projection TV

I have a LG DLP Projection TV, model 52SX4D-ub. I just replaced the lamp & ballast but TV still does not turn on. The front indicator lights scroll with white lights for few moments, then top 2 turn red, with the lamp indicator light blinking. After minute, the process repeats by scrolling white again.

 

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