Yamaha CL1 Reference Manual page 142

3.
To remotely control the I/O device's
head amp from an input channel of
the CL series console, use the bank
select keys in the Centralogic section
to access the OVERVIEW screen that
includes the channel for which you
want to control the head amp.
4.
Press the GAIN/PATCH field of the channel for which you want to adjust the I/O
device's head amp. The GAIN/PATCH popup window will appear.
5.
When you have finished making settings, press the "x" symbol to close the popup
window.
GAIN/PATCH
field
6.
If you press a rack in which an output I/O device is mounted, the OUTPUT PATCH
popup window will appear.
If you need to make output port settings, make these settings as described in step 7 and following
of the I/O device patching procedure (see
142
I/O device and external head amp
page 140).
Reference Manual