GRC must be manually tuned by turning frequency
MX-9146/GRC when the it unit is on. Burnt pins or
selector switch S1 to the operating frequency band of the
connectors will be the result.
(2) Do not disconnect the cable connectors
b. Observe the following precautions:
unless maintenance is needed. Unnecessary removal
(1) Never connect the control cable to the
and replacement increases the chance
Figure 2-5. Antenna AS-2731/GRC, control and connectors.