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TM 11-5820-890-20-2
1-24
1.8.
DESCRIPTION OF COMPONENTS. Continued
CONTROL BOX C 10456/VRC
BOTTOM VIEW
J804
J803
J802
J805
VOL
J801
The C 10456/VRC is a modified C 2298/VRC. It is used in the M1, M2, and M3 tracked vehicles to provide
remote keying of the AM 1780/VRC main junction box. The C 10456/VRC has an additional connector, J805
located behind the volume control. Special cables are connected between tracked vehicle control sticks and
connector J805. A dummy plug is provided for normal operation. The plug is connected to J805 to allow keying
from J805.
VIC CONTROL BOX FUNCTIONS BY SWITCH POSITION:
FUNCTION
POSITIONS*
CDRS
CREW
RADIO •A" (TALK & LISTEN)
ALL, A
YES
YES
RADIO •B" (LISTEN)
ALL, C
YES
YES
INTERCOM (TALK & LISTEN)
ALL
YES
YES
INT ONLY
YES
YES
A
YES
YES
C
YES
NO
* Position B is not used with SINCGARS.
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