My 8924C Radio Test Set must have sensed the presence of the 8920B downstairs. It's gone in a huff and won't turn on :-(
4 Philips and 32 Torx fasteners later and I've got the PSU out. Nothing on the +15V standby output so a definite PSU fault.
It was working fine last time I used it. I'm guessing a start-up resistor has gone high resistance. Another 17 screws and I'll have the lid off the PSU.
Updates as it happens.
