A2000 Keyboard Fix
Here is the fix per the bulletin by CBM Amiga. Hitek type keyboard used with
A2000 pcb REV 4.0 or 4.1 can exhibit a loss of the first character typed after
power-up or reset. There are two types of keyboards for the A2000, the Hitek
which can be distinguished by the black shield visible between the key spaces
and the Cherry which is a ligheter weight and has a tan color visible between
the key spaces.
Refer to page 14 of A2000 system schematics Locate keyboard connector CN300.
Follow *KBCLK signal to C910 1000pF cap, remove C910. Follow *KBDATA Signal to
C911 1000pF cap, remove C911.
Both capacitors C910, C911 are located on the PCB directly off the keyboard
connector CN300. It will be necessary to remove the drive chassis in order to
access these locations.
This mod is only for the Hitek keyboard, and should only be performed by an
authorized service center. I am only posting this info for the benifit of
other dealers that may not receive this info in a timely manner. Ralph Landry
Michigan Software