Internal PCB
Built-in
Submitted by Dan Dooré on Friday, May 25, 2018 - 13:30.
Description
PCB Picture from http://sam.speccy.cz/
Production PCB is V1.1, this was the only version mass produced.
Factory Reworks
FDD Drive connector 1 (CON12) has A0 and A1 the wrong way around, this is addressed by cutting the traces and patch wires from the VIA's north of the ASIC.
Keyboard CON1 has a 10K pull-up to 5V added to the keyboard matrix lines.
Quirks
There is differences in the field with values of capacitors C4 (47uF) and C36-38 (22uF) which have been seen as either 22uF or 47uF value as well as being 50V or 25V parts.
New Bug Fixed Schematics
Packaging
