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  1. S

    Issue with Macintosh Classic II: vibrating vertical lines / unable to boot

    Made it, thanks to you guys! PP1 was cleaned & adjusted... (Sound was also restored after the replacement of all capacitors) So grateful
  2. S

    Issue with Macintosh Classic II: vibrating vertical lines / unable to boot

    I see! Makes sense... Many thanks
  3. S

    Issue with Macintosh Classic II: vibrating vertical lines / unable to boot

    Much appreciated
  4. S

    Issue with Macintosh Classic II: vibrating vertical lines / unable to boot

    Many thanks! Will try to revive all voltage readings & see what happens.
  5. S

    Issue with Macintosh Classic II: vibrating vertical lines / unable to boot

  6. S

    Issue with Macintosh Classic II: vibrating vertical lines / unable to boot

    Many thanks for your kind advice; will do so & revert!
  7. S

    Issue with Macintosh Classic II: vibrating vertical lines / unable to boot

    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...
  8. S

    Issue with Macintosh Classic II: vibrating vertical lines / unable to boot

    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...
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