"half_pint" wrote in message
...
I have a TV which has the above problem.
The picture and sound are fine, prefect however
I get the above noise from the back of the tube (sometimes).

The noise originates from where the big high tension cable
attaches to the tube, on the back near the top (not the
thin neck but the big dome 'bit'.

There is like a big round 'sucker' (plunger shaped thing)
where it atttaches to the tube, this has a lot of (well a fair bit of)
black 'dust' on. I can see some blue 'arcing' on the 'sucker type'
thing which the cable is attached too. this is where the niose comes from.


That's fairly common, you need to remove the anode cap (the suction cup
thing) clean the tube well, then smear the rubber with some dielectric
grease you can get at any autoparts store. You need to discharge the tube
first, just connect a wire to a screwdriver, and connect the other end to
the metal ground strap around the back of the tube then poke the screwdriver
under the cap, you might hear a small static electricity zap, then pull up
the lip of the suction cup and you'll see how to disconnect it. Discharge
the little button where it plugs in any time before you touch it as it'll
sometimes build up a bit of residiual charge.