TM 11-5820-890-10-3
VEHICULAR RADIO ASSEMBLY
Vehicular radios are installed and removed by maintenance personnel. However, if you have a dismount radio, you need
to know how to remove and install the RT. Refer to the illustrations on pages 2-21 and 2-22.
WARNING
HIGH VOLTAGE
EXISTS AT CONNECTOR J1 ON MOUNTING ADAPTER. AVOID INJURY: BE SURE J1 IS COVERED
OR CAPPED WHEN NOT IN USE.
CAUTION
BE SURE POWER SWITCH CB1 IS OFF WHEN REMOVING OR INSTALLING RT. IF IT IS NOT,
EQUIPMENT DAMAGE MAY OCCUR.
DISMOUNTING RT.
When dismounting an RT to assemble a MP from a system that has two RT’s, always dismount the RT in position B
(upper RT). You must use the RT in position B so that the radio system retains long range capability. This procedure will
allow you to receive communication until step f has been performed.
a.
Remove retaining bar (if used).
b.
Loosen hold-down clamps; turn sideways.
c.
Set CM (if used) to OFF.
d.
Set loudspeaker (if used) power switch to OFF.
e.
Disconnect cables from RT connectors (refer to cabling illustrations; then disconnect cables that are connected to
RT AUD/FILL, AUD/DATA, and RXMT connectors).
f.
Disconnect antenna cable connected to RT ANT connector (refer to the appropriate cabling illustration as
needed).
g.
Set RT FCTN to OFF.
h.
Set adapter CB1 to OFF.
i.
Remove RT. Pull RT straight out.
j.
Cap system connector.
2-20
