Re: Lisa not powering up

Hi Tom,

I also own a Lisa with a SunRem Drive, which is identical or similar to that you described. What's your question?

Your mouse:
Try to test it with a Mac Plus. If the problem still exists, it's the mouse. If not it's your Lisa motherboard. You also can use a Mac Plus mouse for your Lisa.
I don't believe the internal sensor is weak. I never had seen such a non-working sensor, but I know this problem "no horizontal moves" Try this: open mouse, turn the small axis with the wheel manually. Sometimes it's got stuck. Sometimes the sensor is full of dust. The most common error is a bended cable. Use a ohm-meter and test all connections from the mouse board to the mouse plug.

Please do that at first. It's not so much work to do, as if it would be a motherboard with 200 pins :-)

greetings TOM from Bavaria, the center of Europe, the country of the Alps, the marvellous castles of Koenig Ludwig and last but not least: The original Octoberfest

Am 17.01.2014 um 01:04 schrieb Tom Frikker:

> I examined my drive again today. It's clearly a Sun Remarketing
> drive, and it looks nothing like the widget photos I've seen
> online. Does anyone have information about this model, or some
> online resources that pertain to it?
>
> Also, I tried out my Lisa mouse today: it only moves vertically. I
> took it apart and cleaned the rotating plastic pieces that make
> contact with the trackball, but the problem persisted. I checked
> all of the traces on the bottom of the board and across the wire:
> all are fine. These mice are light-based, correct? Maybe the little
> light sensor is burned out or something. Is there a way I can
> replace it, and if so, where can I get a replacement? Would the
> analogous part from, say, a Mac Plus mouse work?
>

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