Ding-ding-ding! old_coot88 was on the mark, as usual. Broken lead between C6 and junction of M3/M4 in the Sams schematic, so no juice coming down that line.
Simple to diagnose (once you know where to look), and a big fat pain to fix. It will take 1/2 hour of horsing around to get all the heavy chassis out of the cabinet and back into the workbench, and about 1/2 minute to repair the break!
While it's on the bench, I'll be able to view the CRT face and judge the focus there.
Later,
Phil Nelson
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