Methinks the classic II is slightly dead.

Pulled the thing apart again, the motherboard was fairly free of dust. Examined the RAM and connectors, no tarnishing or discolouration.

Could be leaky capacitors, or just flux on the solder pads, I couldn't quite tell. I've seen enough leaky caps to know the difference.

Put everything back together, powered the machine.

Same thing, vertical bars with a little garbage, but this time I did notice a low volume, varying high pitch squeal from the speaker. It was probably there before, but last time I powered the machine, there was other background noise.

Powered down, waited a minute powered back up, ceckerboard pattern as last time.

Could it be the Power/Sweep board has had it? (as per diagnosis from the Classic II ASM)

RAM and connectors were good, as noted above. PRAM battery was as flat as a tack.

So, is machine dead? salvageable for parts?

Nick