TM 11-6625-2950-13
Table 2-1. Operating Controls, Indicators, Connectors, and Test Points-Continued
Control, indicator,
Function
connector, or test point
Provides dc voltage into the AGC circuit of the main receiver of the uhf
J8 EXT AGC connector
receiver-transmitter.
Provides audio signal into the X-mode transmit audio line in the uhf
J 9 X-MODE XMT AUDIO connector
receiver-transmitter.
Provides audio signal into the retransmit audio line in the uhf receiver-
J 1 0 REXMT AUDIO connector
transmitter.
Provides audio signal into the transmit audio line in the uhf receiver-
J11 XMT AUDIO connector
transmitter.
Monitors the speech security guard line out of the uhf receiver-trans-
J 1 2 SPEECH SECURITY GD AUDIO
mitter.
connector
Monitors the receive audio line out of the uhf receiver-transmitter.
J13 RCV AUDIO connector
Monitors the volume control audio line out of the uhf radio control.
J14 VOL CONT AUDIO connector
Monitors the X-mode receive audio line out of the uhf receiver-tran-
J15 X-MODE RCV AUDIO connector
mitter.
Monitors the fM data out line of the uhf receiver-transmitter.
J16 FM DATA connector
Provides a dc voltage indication of the operation of the uhf receiver-
TP1 BITE test point
transmitter.
Provides a point at which to measure the main AGC dc voltage at the
TP2 MN AGC test point
uhf receiver-transmitter.
Provides a point at which to measure the guard AGC dc voltage of the
TP3 GD AGC test point
uhf receiver-transmitter.
Provides a point at which to measure the +12 vdc produced by the uhf
TP4 +12V IND PWR test point
radio control.
Provides a point at which to measure the +6 vdc produced by the uhf
TP5 +6V IND PWR test point
radio control.
Provides a return path for the dc voltage indications that are measured
TP 6 GROUND test point
at TP1, TP2, TP3, TP4, and TP5.
S e c t i o n III. OPERATING UNDER USUAL CONDITIONS
( 2 ) Remove the interconnecting box, attenuator,
air cooler, indicator, and headset adapter from the case.
a. G e n e r a l .
(3) Unlock the connecting cable storage case by
sliding the two locks to the outside.
CAUTION
(4) Remove the five cable assemblies from the case.
The transmit case is an airtight unit. Changes in
temperature or altitude can cause pressure to
( 1 ) Attach the air cooler to the power supply
b u i l d up inside the case. The pressure relief
section of the uhf receiver-transmitter by means of four
buttom must be pressed prior to unlocking the
slotted-shaft screws.
case.
(2) Connect cable assembly W3 to interconnecting
box connector J2, and uhf receiver-transmitter connect or
(1) Press the pressure relief valve located on the
J1.
transit case to the right of the carrying handle.
