Quote:
Originally Posted by zeno
If you get 20KV on the CRT pin while unplugged HV
is leaking back. The arc is the spark gap in the CRT
socket. We had a few new CC2 19" do this. Cure was to
unplug CRT, ground the focus pin & turn it on & off
a few times. That was right from Zenith TA. It fixed
them
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So basically, you were burning out a conductive path or a field emitter particle that had somehow stuck to the focus element, using an old CRT mfg technique known as "spot knocking" .
jr