On 2009-05-07 02:09:00 -0600, "Michael J. Mahon" <mjmahon@aol.com> said: <snip>
The PB2 diode is reversed because the Shift key grounds the PB2 input, while the Apple keys connect PB0 and PB1 to +5v. PB0 and PB1 are pulled down by 470 ohm resistors in the keyboard, while the shift key mod pulls PB2 up. -michael
<snip>Good point! I had forgotten about the shift mod on the iie. After reviewing the schematic the the game connector and it became clearer. Thanks for the heads up.
Dutch