TV problem - Green Screen

[Grant Cooper]

I'm having problems with my TV set which is fairly old. The screen is
now showing a significant greenish tint on all channels which cannot
be prevented by adjusting contrast/colour/etc.

Does anyone know what is causing this problem and is it common?
Moreover, is it easy to fix and does anyone have an idea of how much
it would cost.

Thanks in advance for any help.

Grant

 

[Just Me]

Grant:

The problem you describe could be a few things. It could be a bad pix tube
(Red Gun most likely) or the driver circuit for the red gun. Since the
picture is made up of RED-GREEN-BLUE and you are seeing green, it is most
likely that you are actually seeing GREEN-BLUE (No RED). More than that, it
would tke some troubleshooting to see if it is the gun itself or the driving
circuit that drives the gun. Could be as simple as a $0.25 resistor or as
expensive as a pix tube. I'm sure if you provided the make and model#
someone might have some more detailed information.