Same happened to mine
(portuguese, but google translator is your friend :) )
2017-12-01 17:18 GMT-02:00 Adrian Graham via cctalk <cctalk at classiccmp.org>:
After sorting out the Model 4P (thanks to all who provided hints!) and
scrubbing it up so it almost looks new again I turned attention to my Model
1 Level II which had been dead for at least the same amount of time as the
Model 4. There?s some excellent troubleshooting tips for these machines out
there and I quickly discovered a bad RAM chip, swap that for a NOS one and
we?d be back in business if the video RAM wasn?t failing.
One of the 4 2102A chips is failing (MEM SIZE becomes OEO SIZE) and I?d
like to double check this before I stump up the ukp4 required for a pair of
NOS ones, can anyone think of a machine from back then that also used 2102A
or 2102LPFC or NTE2102 video RAM?
Binary Dinosaurs - Celebrating Computing History from 1972 onwards