PICTURE TURNS RED AFTER A SHORT WHILE

Check that the air vents are clear of all blockages, dust etc. filter is clean and cover on firmly.

make sure the signal matches. you could reset the settings to factory default.

try to clean the air filter of your projector... in case the problem occur check the lamp ballast board and replace it.

jahting

when it goes green, your green picture tube is shorting out, replaceing the green tube costs alot of money. these sony's had alot of bad tubes, the red and blue are probably going out too, it will cost alot to fix this, at least $500 even if you find good used picture tubes to put in it.

if it's under 1 year old, it's still under warranty, so send it in and get it fixed for free.

The are controls on the inside of the tv above the circuit boards for focus and to turn up intensity of the projector lamps (red, green, and blu). If you turn it up too far all three projector lamps kick off. If this happens, power off the set and turn down the lamp that you turned up. Power it back on and slowly turn the projector lamp up until the picture looks OK. You have to take off the panel on back of set to get to the controls.

Sound but no picture, tv will not turn off. Light goes red but a dim overall blue screen remains and fan is still running.

Always try your extended warranty!.....Probable cause = bad
red tube. One adjustment may help---turn down red screen
control, located behind technician access panel in front of set.

does it have blue video image?

service manual here
http://www.eserviceinfo.com/
I would not replace one stk but all....
more info here:
http://www.digitalhome.ca/forum/search.php
http://www.digitalhome.ca/forum/showpost.php?p=564268&postcount=220
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html