AM 320-01-808
74
6. CB 40 (Potentiometer Board)
Basically, this board is a 40-channel multiplexer
which feeds through the voltages adjusted
with the volume control potentiometers to the
output IC 8. Selection is done by means of
the potentiometer address, which the co-
master writes in IC 1 (HC 174).
The multiplexed analog output of IC 8 goes to an
Analog-to-Digital Converter located on the
CO 1 board.
7. CB 48 (VCF, Touch, Glide)
On this board the signal of the two touch sensors is
processed (IC 1) and converted into a voltage
between 0 and 4 V. And with the two
potentiometers the voltages for VCF and
Glide are produced.
8. DR 409, DR 410 (Drawbar Board)
The drawbar potentiometers are located on these
boards. They are connected to CB 40.
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