Well at the time of that post, I hadn't cleaned anything. I just fired it up and adjusted the monitor. It turns out that the pot I adjusted was the B+. So obviously I sent too much voltage through something and that something is toast. (Who designs a monitor with B+ pot right next to the other normal screen adjustment pots? -- Matsushita! That's who!
So anyways, last night I did clean it. I just use damp (not soaking wet) rags, sponge, hot water and a tiny bit of general purpose cleaner in the water. I remove the boards, power block, but leave the wiring in. Vacuum out the bottom. Scrub dust and dirt away from all wood. Toothbrush for nooks and crannies. Dry paint brush on the power block and boards.
Lastly I sprayed a bit of Fabreeze in there and left the cabinet open to air out over night. Old dust and wood gets a stink in it, so the Fabreeze helps neutralize it (or at least cover it up
).