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TM 11-5820-890-20-2
2-1
CHAPTER 2
VEHICULAR INTERCOM AN/VIC 1(V) (VIC)
Subject
Para
Page
Operational Check
2.1
2-1
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Troubleshooting Flowcharts
2.2
2-9
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Cable Schematics
2.3
2-164
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2.1.
OPERATIONAL CHECK.
General guidelines for checking problems in the Vehicular Intercom AN/VIC 1(V), commonly referred to as the
VIC, are as follows. In that the VIC is used in conjunction with the SINCGARS radio, an important first step is to
isolate the problem between the VIC and the radio as early as possible. If a vehicular radio is used with the VIC
being checked, it may be necessary to troubleshoot the vehicular radio VAA or PSA, as covered in other
chapters of this manual or TM 20-1. Once the problem is isolated, make use of the appropriate radio
operational check or the VIC operational check which follows. As in troubleshooting a radio, the VIC
Operational Check is the start point. It will identify the faulty component or specify a Troubleshooting Chart to
use. Once replacement or repair has been completed, perform the Operational Check to ensure full operability.
OPERATIONAL CHECK FOR VIC
STEP 1. PREPARATION:
STEPS TO PERFORM
CHECKS TO MAKE
ACTIONS TO TAKE
1.1
Set RT:
FCTN to OFF
CHAN to 1
MODE to SC
RF PWR to HI
VOL to Mid Range
DIM to Full CW
COMSEC to Z
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
1.2
Set Vehicular Amplifier Adapters (VAA):
CB1 to OFF
DS1 to Full CCW
Ensure VAA set to REMOTE
N/A
N/A
Set VAA to REMOTE
N/A
N/A
1.3
Set PA Mount MT 6353:
CB1 to OFF
DS1 to Full CCW
N/A
N/A
N/A
N/A
1.4
Set AM 1780:
CB501 to OFF
MAIN PWR to OFF
INSTALLATION to OTHER
RADIO TRANS to LISTENING SILENCE
INT ACCENT to OFF
DS501 to Full CCW
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
1.5
Set all loudspeakers (LS 671):
CB1 to OFF
DS1 to Full CCW
VOL to OUT & Midrange
N/A
N/A
N/A
N/A
N/A
N/A
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