IIGS monitor repair

[Slick@noSPAMplease.net (Slick)]

My IIGS monitor is fritzing out. It works for about half an hour, then the
screen goes blank, and the power light goes out. Pressing the power button
has no effect. IF I leave it turned off for an hour (or sometimes more) It
will turn on for a short time, then go out agin.

Anyways, I remember hearing a long time ago that TV repair shops can
repair computer monitors. That may not be true anymore, but was it true
for the IIGS's AppleColor RGB monitor? Although even if it is true, I'll
bet that they'd laugh at me if I brought it in. 

The other thing I'd like to know is, what's the going price for those
monitors nowadays? I haven't been in the market for one since 1988, and
that was a Christmas present from my parents (4th grade, no less).  One
good thing I can say, that monitor's lasted longer than my Apple MultiScan
1705, it fritzed out after only 3 years, rather than 13.