JJ wrote:
I have a 3 year old Sony projection TV that I am having problems with.
With the TV on and a black screen displayed I can see numerous light
horizontal lines that curve up in the center. These lines can also be
seen while looking into the blue CRT tube (also when the TV is on, and
there are no lines on the other tubes). Any idea what may be causing
this? Thanks



The blue tube is being overdriven and clipping so you're getting retrace
lines. Did the problem occur suddenly or gradually? Either way you're in
need of an experienced tech to repair the problem. Quit using the TV
until it's fixed to prevent further damage.