First be sure its not coming from the speakers. Just turn them
off ( if you can ) or turn the volume all the way down & try it.
If its a HV ark it almost has to be at the anode connector,
You need a clip lead & thin screwdriver thats well insulated.
Hook one end of the lead to the driver & one to the CRT ground.
Usually there is a long bare wire across the CRT bell. Thats
the best way to grab the CRT ground. Slide the driver under the center
of the cap & move it around. That discharges it. It may make a
snap but most solid state sets bleed off in seconds anyhows.
The cap is held in by 2 claws. Fold up the rubber & push one to the side
& it will pop off. Look for carbon tracks on the cap & CRT glass. Clean
all with 91% isopropyl alkahol. There is a black coating on most
of the CRT. Do NOT clean that ! Just within abt 4" of the cap.
Reassemble, let dry & try.
73 Zeno
LFOD !