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 TM 32-5895-227-14&P
c.
Combined System Operation.
(2)
Plug microphone headset assembly
into HEADSET receptacle on panel.
(1) When the system is used for combined
(3)
Tap microphone and listen for sound
system operation, the following types of operation can
in left earpiece of headset. This checks out operation of
be performed at the central station.
intercom power supply PS 1 and also amilifiers AMP 1
(a) All independent group operations
and AMP 2.
(4)
Push any one of the 18 INTERCOM
(b) Operation of intercommunication
buttons that has an outstation connected to it. Button
and monitoring facilities at the central station in
pushed should blink. This checks out relay power
supply PS2. Push button again to turn it off.
(2) When the equipment is used for
combined system operation, the following types of
h.
Intercommunication
Switchboard
SG-
operation can be performed at the central station:
2601/G.
(a) All independent control group
operations in paragraph 3-2b.
NOTE
(b) Monitoring any line circuit in the
This unit gets its power to operate
system.
the transfer button lights and the
(c) Remote line recording.
selector relays from the Radio
Intercept Control Switchboard (RICS)
(d) Radio and land-line teletypewriter
operation.
SB-2602/G Therefore, check out the
RICS first. See paragraph 3-3i.
3-3. INITIAL ADJUSTMENTS. Perform the procedures
Push any one of the TRANSFER buttons. Button
below to prepare for operational use.
pushed (and corresponding channel signal light on RICS
a.
Power. If the AN/MSQ-71 has just been set
panel) should light. Push button again to turn it off.
up, or if it has been out of service for over a month,
i.
Radio Intercept Control Switchboard (RICS)
ensure that the main power is off, that all equipment
SB2602/G.
power switches are off, and that equipment is
(1)
Plug power cord in.
unplugged, as appropriate. This will help isolate any
(2)
Plug microphone headset assembly
defective equipment and prevent further damage.
into HEADSET receptacle on panel.
b.
Main Power. Turn main power on.
(3)
Tap microphone and listen for a
c.
Radio Receiver R-390A/URR. See TM 11-
sound in left earpiece. This checks out operation of
5820. 358-35.
intercom power supply PS 1.
d.
Coupler CU-872A/U.
See
(4)
Push MON OFF button.
Button
NAVSHIPS 94490.
should light. This checks out relay power supply PS2.
e.
Teletypewriter Set AN/TGC-14. See TM 11-
Push button again to turn it off.
5815206-12.
(5)
Push first SPECIAL INTERCOM
f:
Telephone Set TA-676/G.
button. This will apply blinker signal to Direction Finder
(1)
Plug power cord in.
Report (DFR) Telephone Set TA-676/G (SPECIAL) to
(2)
Push any one of MONITOR buttons.
check operation of blinker power supply PS3. Push
Button should light. This checks out operation of relay
button again to turn it off.
power supply PS2. Push button again to turn it off.
j.
Monitor Control Panel SB-2600/G.
(3)
With handset connected (handset
(1)
Plug power cord in.
receptacle on bottom side of case), and while holding
(2)
Turn POWER ON switch on (up).
receiver end to ear, tap microphone. Sound response
RECORDER 1 OFF and RECORDER 2 OFF indicator
from receiver to tapping checks out operation of
lamps should light.
Recorders are also remotely
intercom power supply PS1 and amplifiers AMP 3 and
controlled, so one or both of the ON indicator lamps
AMP 4.
may light instead. Either situation indicates that relays
g.
Communications Control Console (CCC)
and indicator lamps have power.
OA-7735/G.
(1)
Plug power cord in.
3-11
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