Greetings All,

I really do not frequent this group... but I now have a problem and
would welcome ANY advice.
My now malfunctioning TV is an old Sony 27" (model KV-27S35),
manufacture date: January, 1997. It has been typically run an average
of 15 hours per day.

Problem:

When I have my brightness control actually set all the way down, the
color is (Briefly!) good and perfectly even throughout all the hues.
However, it tends to rapidly increase so that what should be black, and
in fact the entire screen, becomes blurred under a green tint. This
includes overly bright (and of course green) bands above and below the
images during letterboxed presentations.
Problem occurs regardless of what is input (VCR, DVD, cable, etc).
If I switch to an unused function, which therefore just shows a black
screen, the brightness slowly fades back down to black in 5-10
seconds,... but, when changed back to the active image presentation, it
once again begins to brighten and color everything in a bright green
tint.

So,... Questions:

Is this something which can be repaired ... uh,... cheaply?

Or, is there perhaps an accessible "re-set" switch inside the cabinet
which can simply be tweaked to re-calibrate the brightness setting.

Is the picture tube just reaching the end of its life?... and perhaps
going Green "Super-Nova" on me is my warning to save room in the
dumpster?

Appreciate any suggestions, info, and advice before I give up and buy
[groan] yet another TV.

Thanks!
Bob H.
Albuquerque, NM, USA