6
The input/output interface is a set of PC holes on the back of the tuner board. The holes look like
this:
The TUNE button connects between the single hole at the top of this picture (ground) and the
left-most hole in the row of four. The tune indication appears between the right-most hole and
ground.
Tune Switch
(SPST, Normally Open)
This point goes
to ground during
a tuning cycle
Tune Switch
(SPST, Normally Open)
This point goes
to ground during
a tuning cycle
