Re: Sound Pins

[vmbb!pro-newton!pro-dan!danb (Dan Brown)]

In <38423f$obc@hptemp1.cc.umr.edu>
mikul@rocket.cc.umr.edu (Keith Mikulich) writes:

>Does anybody know the pin layout of the (8 pins, I think) external sound
>plug? If not, is there a Technote somewhere?

        Apple IIgs Hardware Reference Manual, Second Edition, page 119:

Signal                  Pin     Maximum         Units

A/D Converter input     1       2.5             V Peak-peak
Input Impedance         1       3,000           Ohms
Analog GND              2       -               -
Analog Output           3       -5 to +5        V peak-peak
Output load             3       10,000          Ohms, minimum
Channel address 0       4       1               LS TTL Load
Channel address 1       5       1               LS TTL Load
Channel Strobe          6       1               LS TTL Load
Channel address 2       7       1               LS TTL Load

 --
Dan Brown, KE6MKS
pro-dan!danb@pro-newton.cts.com
Don't Tread on Me.