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For CRT projection TV's, this indicates that the Green picture tube is burned (warn out). The less green that strikes the screen, the more redish the image will look. You will need to find an old school TV repair shop that knows how to replace picture tubes.
In the case of a DLP style TV, the color wheel needs replacing.
It was probably my post--SD TECH--you may want to tweek the red screen a little up or down--if it still acts up it is the picture tube--
The adjustment procedure is only meant to help and not cure the problem--try to get it as good as you can and live with it.
I have been involved with replacing those tubes and it is no picnic--you remove one--send it out for rebuild and put it back and do major adjustments--usual cost for rebuild is near 300 JUST FOR THE TUBE--real problem is that sooner or later the two other tubes will start to act up.
I composed those instructions to try to give people an option--to buy them some time--the picture tube is what some call a bulb--one in the same thing.
Lots of these sets had all three tubes changed when under warranty--what really happened is Sony put the wrong tubes in the sets to begin with.
My best advice is adjust it as best you can and when it goes replace the set.
Hard to give advice or diagram when you dont give a model number or type of tv. There are thousands of models and types and no one fix for all problems. If its a tube type or DLP projection you could have a bad picture tube or light engine.
Finding information on the is particular brand was not an easy task. I had previously thought it may have been in need of a lamp replacement.
However doing some research on this particular model I found out it is an older CRT (Cathode Ray Tube). What the problem with your television is that a repair person would have to run a diagnostic with your TV. Which often can be quite expensive.
Your TV has 3 different imaging sources a Red, Blue, and Green. Anyone of these could be causes your TV to do this. It maybe just one, maybe 2 or even all 3. Replacement parts for this TV is not an easy find. I ended up finding similar parts on eBay.
Your best bet would to be call an TV repair person to diagnose the problem. Or buy a new LCD or DLP TV. I am sure it is not news you want to hear. But this is the only help I am able to give.
There is a mechanical adjustment on the tubes themselves when it was dropped it could have knocked it out of alignment, or the Convergence ICs are bad with is a common problem with CRT projection tvs. Mechanically adjusting the tubes can be tricky I wouldn't suggest working on it unless you have some kind of experence with tvs. But if you do adjust the red and blue to the green.
one of the problems is that tubes for projectors are getting hard to get. parts hard to find plus there is a chance the red tube will go soon.I have 25 years in the busniess i feel you should start looking for another tv. The hard thing is figuring what kind to get.
there is plasma which has burned in imiage problems and bad panel they are heavy but thin. There lcd tv lighter last alonger time but have power supply problems and the picture is not as good as plasma. and you have dlp they look like projectors but they take abulb that gos bad every 2 years and cost 300.00 but are in expensive. make sure you get the warr tvs today only last around three years i hope this helps thanks doctor video. Bottom line is get the warr then you never have to worry what ever you decide its worth it. thanks DOCTOR VIDEO
It sound like a bad tube there are three tubes red green and blue.
i suspect the blue tube is bad. tubes cost 160.00 plus labor 450.total . sometimes the tubes
can be fixed or the tv tech can adjust the screen voltage on the tube.
You will need to purchase a new bulb then install it in its case then put it back in the set. If its a DLP if its a crt set you will need a new tube or a used one. What is the model number of your set?