luma is gone

[lnx64]

Yea, the CRT is in fact on borrowed time, it's getting old. But the previous night it was nice and bright. I turned it on today, and it's looking like this.

I gently tapped the CRT, nothing.. Checked around the mainboard, and checked it's service switch. Sure enough, just touching the switch got luma flicking back to life again.

I'll need to either replace that switch or clean it somehow.