
Apple II Computer Info
You can use an Ohm meter to, for
example, verify that the wire you
think is Button 0 really goes to
pin 7 on the Apple 9-pin connector
(or pin 2 on the old 16-pin IC style
connector). Pinouts for both kinds
of A2 sticks are shown below:
Apple II Joystick
(9-pin male)
[2]---- +5V
[7]---- Button 0
[5]---- X-axis
[8]---- Y-axis
[1]---- Button 1
[3]---- Ground
Apple II Joystick
(16-pin IC-style plug)
[1]---- +5V
[2]---- Button 0
[6]---- X-axis
[10]--- Y-axis
[3]---- Button 1
[8]---- Ground
The +5V wire is easy to find. It will
go to each pot and to one side of
each Button switch.
The Apple2 Ground wire goes to the
'bottom' end of each fixed resistor.
You do not need to label it; because
it will be removed.
2. Once the wires are labeled, cut
each about 1 inch from the point it
goes into the cable. Remove the cable.
(Keep the cable; it may come in handy
for some later Apple2 project.)
Now, is the time to rewire the
Buttons.
3. Remove (snip or unsolder) the two
fixed resistors. If the Button 0 or
Button 1 lead becomes disconnected
from its switch during removal of a
resistor, reconnect the lead.
Check to see that, now, the Button 0
wire is the only one going to one
side of the Button 0 switch. The same
goes for the Button 1 wire.
Snip off or unsolder the +5 leads
Apple II Computer Technical Information : Apple II Family Hardware Info
ftp://ground.ecn.uiowa.edu/2/apple2/miscinfo/hardware : May 2001 : 33 of 572
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