Re: Lowercase characters for Apple][ +

[ah499@cleveland.Freenet.Edu (John Daniels)]

I modified a ][+ recently to give it lower case so this is fairly fresh in
my mind.  I used the blanket approach too.  I did both the "shift-key mod"
that involves running a wire from one of the keyboard connnectors to one
of the gameport pins (I ran it to the leg of an adjacent chip per the
instructions provided in a Videx 80-column card manual)   *AND*  added
a tiny DPDT slide switch to the Keyboard Encoder Board after cutting the
"butterflies" so you can either set the keyboard output (whether you can display
it or not) to either uppercase-only or uppercase/lowercase shiftable.  Running
a little cable to a case mounted pushbutton switch would give you an actual
Caps Lock key!

gray@feline.uucp (Kelly Gray) writes:
 
>Second, the ROMS in a II+ are not quite the same as a standard 2716
>EPROM. It is possible to make a replacement, but the simple way makes
>it impossible to use a language card, and the complicated way involves
>building an inverter into the chip socket.

Only on the ][ and earliest ][+ machines do you need a special chip for the
character ROM.  On a Rav.7 or later with the encoder board slung under
the keyboard a standard 2716 with the appropriate characterset does fine.

						John Daniels
						ah499@cleveland.freenet.edu