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The little plastic button you are referring to is the IR receiver for the Remote. When the TV turns itself off, are there any flashing lights on the front or rear of the unit. Look through the vents in the rear for any flashing lights or try tuning the tv on in a dark room and see if any lights flash and reflect off of walls. If there are flashing lights tell me how many flashes and what color and I will try to look them up in the manual.
These procedures are from the owners manual, go into menu and then picture quality and then:
The Convergence feature lets you adjust the TV’s three tubes. When the TV tubes’
images are precisely aligned, they create the color images you see on the screen.
Over time, the picture can drift out of alignment (this is normal). If your picture
seems fuzzy or has a yellow tint, using Convergence could correct this
misalignment. Only one convergence is needed for all inputs, regardless of the
Note: Make sure the TV has been on for at least 30 minutes (TV needs to
warm up for best results) before starting Auto Converge or Red/Blue
When you select the Convergence feature, a submenu appears with three options:
Auto Converge Automatically aligns the projection lenses to self-correct
color images. You’ll see flashing squares of color dance across the screen
(this is normal).
Note: After performing auto convergence, use the Blue Centering and
Red Centering menus to fine tune convergence in the center of the
screen, if necessary.
Blue Centering Aligns the blue and green images to fine-tune the picture.
Red Centering Aligns the red and green images to fine-tune the picture.
Note: The ability to change channels is disabled when adjusting the
convergence options. The TV must be tuned to a usable signal to
converge the picture.
You can try adjusting the Red color output. (Very touchy adjustment)
you take off the front cover/speaker cover, there should be a access panel. Behind
that, there should be a small square black box with 6 screws on it.
This is the focus block. (At least this is where most of them are
It sounds more like you may need less red in the mix. There is a screw for each color. R, G, and B. Do not
mess with the focus screws, just the ones labeled 'SCREEN.'
Go to an unused input where the screen should be dark. Barely turn the red down in a dark room so that the red spot is at the same level as the Blue and Green.
Use an insulated screwdriver and DO NOT TOUCH the focus block and ESPECIALLY NOT the back of it. Very HIGH VOLTAGE. I found that out the hard way.
Do not turn any of these up too high or damage may occur and the TV may detect a short and shut off.
have found that if the three colors are adjusted in a dark room to
where the 3 color spots (R/G/B) are just barely visible on the screen
at equal levels, there is a pretty good color balance.
It could be that the picture tubes have gone down on emission, there is a prcedure that can be tried to bring up the overall brightness but it is just possible that you will loose some picture quality. If it's a 1994 projo tv i am thinking of the three crt system, a gray scale alignment would probably correct the dark condition in your picture, again depending on how far gone is the emission in your picture tubes, if your projo tv is the dlp system, the bad news is that you could be needing some light engine repair. The color adjustment is possible with the availability of a service manual or in the case of the dlp system, light engine repairs or replacement are available from some on line stores.
Normal color picture is composed with 3 colors R-G-B (Red-Green-Blue). Picture turns Red means: Missing Green and Blue colors (many reasons: bad contacts, projector tubes dead, and other...). Try to give some "tabs" to diagnose ... I don't know what is the type of your Projection TV, how long you owned it, to have more idea.
1) You will need the original remote for alignment...
Note: Do not open set to adjust red line.....
2) Remove lower front speaker grill cover and possibly the
access panel....find RGB focus / screen block...adjust red
P.S.remote control part 23306269 $26.90 ...........
use the advanced options page and reset the factor blue and red convergence defaults then do re apply the auto color defaults color at first it seemed very red (which is good because red was the missing factor in the green picture) but after reseting all the color and tints to the normal ranges I then reset the color auto correct again and all seems fine.
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.