The incredible shrinking monchrome image.

[Scott_Busse@mindlink.bc.ca (Scott Busse)]

I have a monochrome console (a phillips) that has a
progressively shrinking image (the black border is
getting bigger). It has been suggested that it's
probably the power supply, but I would like to get
a second opinion (and a third and fourth :) and any
suggestions about fixing it. It also has wavey left
and right borders, and fuzzy top border. I have tried
adjusting the settings inside, but nothing brings it
back.  Thanks in advance, for any help.  Scott