xamman wrote:

Hi! my philips 28" tv which was giving erratic picture and making a
buzzing sparking sound.
from usenet posts & faq, found the noise was coming from the crt
socket.
i carefully opened the crt socket & cleaned contact which clamp on the
input wire.this socket had a spark gap built in with 2 metal
hemispheres. on 1 side of the spark gap i noticed a tiny glob of metal
which fell off on cleaning.
TV is now working. No more sparking noise! but the picture is slightly
less focused - it is hard to read tiny text (like satellite channel
info) on the screen. & there is a very faint narrow almost horizontal
line every inch over the entire screen.

what cause the socket failure?

probably just dirt on the thing caused it to arc.

what is causing this line?

retrace. Just turn the brightness knob down very slightly and it'll go
away in many cases.

did i need to re set the focus after cleaning the socket?

sounds like it. Use an insulated tool!


NT