Many thanks for your kind input!
Floppy voltages seems to be OK when all in place (4.7V & 11.3-4V in particular).
Will check again for any ripple in power rails (being also aligned with the vibrating tone); however, I don't recall these kind of readings. If there is a specific output (V) that is...
Dear all,
I have a Macintosh Classic II that -suddenly- died by being unable to boot; vertical (vibrating) stripes appear when powered-on.
I recapped:
- all surface capacitors of the logic board
- all capacitors of the analogue board
(+ cleaned both boards: logic & analogue)
Still no signs of...