"Sunitha Kode" wrote in message
oups.com...
With the set on and the back off,try poking the boards with a wooden

When I tried tapping the circuit board behind the CRT filament,
there were color stripes which went on & off here & there.

Also noticed that the CRT filament is not glowing.

-Sunitha


If you got anything at all on the screen then the filaments are glowing,
they just may be obstructed by other structures in the neck and difficult to
see. You'll have to repair broken circuit board before you'll know anything
else, the tube is clearly still working, no way to know if the purity will
be ok until you can at least get a picture.