http://youtu.be/nWab41tP-2c?t=21s
Check out the video, can anyone help TheMacGuy diagnose this odd video flashing?
I think he is having a PSU - A/B Anomaly going on here with the screen.
I'v already suggested a re-cap of the A/B - PSU board.
Its almost like the the power circuit almost wants to trip out and doesn't.
The first thing I would do is get a meter on the +5 +12 and watch for fluctuating voltages.
next i would disconnect the floppy and hd, i know you said that you disconnected, the HD, but power too.
also i might try turning the brightness down just to see if that has any effect.
Check out the video, can anyone help TheMacGuy diagnose this odd video flashing?
I think he is having a PSU - A/B Anomaly going on here with the screen.
I'v already suggested a re-cap of the A/B - PSU board.
Its almost like the the power circuit almost wants to trip out and doesn't.
The first thing I would do is get a meter on the +5 +12 and watch for fluctuating voltages.
next i would disconnect the floppy and hd, i know you said that you disconnected, the HD, but power too.
also i might try turning the brightness down just to see if that has any effect.