Re: Lisa I/O board troubleshooting, and schematic weirdness

FWIW here is the MB schematic that I have: http://i990.photobucket.com/albums/af26/highcountryrider/Lisa/lisa-motherboard-6-9-81.jpg

On Mar 27, 2012, at 2:53 AM, PSchaefer wrote:

On 26 Mrz., 05:28, Mr Ian Primus <ian_pri..._at_email.domain.hidden> wrote:

> (...) What's going on here? Are these schematics I have for another
> revision?

There are two sets of schematics floating around in the net. One that has been scanned from original Apple documents, which is difficult to read but correct, and a second one that has been redrawn using some paint program. This one is full of errors, so make sure to use the Apple version (e.g. from bitsavers.org).

Patrick

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