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ColourClassic
January 7th, 2006, 03:27 PM
I recently won an Apple Lisa 2 on eBay. This is the description:

The Lisa is in very good physical condition overall. There are no apparent cracks and the plastics have minimal yellowing [for it's age]. However ... it does not power-on. The PSU [power supply] makes a rapid "flicking" sound. Even with a known working PSU - the power button light and the video screen remain dark.

Can anyone give me any ideas on what the problem is and how to fix it.

Philcogrump
January 7th, 2006, 05:58 PM
With a known working PSU? Are you sure about that, did you change out the original PSU with a whole other PSU of the same type?

I'm not very knowledgeable of Apple or Macintosh computers, but I believe the Lisa 2 was one of these Apples with a HD? If so, that may be what was making the flicking sound (some old HDs would make a clicking noise when it is reading or perhaps "trying" to read). I have a friend with a Lisa who said his HD was failing and the brake in it usually broke so it either did not spin up or so, but I think he still got a screen.

Did you check if the CRT filament in the Lisa glows, if so then it must be the computer not generating any video.