Pin(s) - Signal Name (Continued)
37 - GROUND
This ground performs the same function as CONTROL GROUND pin 20. Either or
both of these two pins can be used for providing a signal ground between the C-
5000 and RT-5000.
23, 24, 6, 28, 9 - CHAN MEM DIS 1 thru 5
Grounding these pins shall turn the selected channel memory discrete on.