Quantcast Table 5-1. Troubleshooting Procedures - continued - TM-5-6350-264-14-P-120041

 

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Table 5-1. Troubleshooting Procedures - continued - TM-5-6350-264-14-P-120040
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TM-5-6350-264-14-P-12 Receiver Data R-1861/FSS-9(V) NSN
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Table 5-1. Troubleshooting Procedures - continued - TM-5-6350-264-14-P-120042
TM 5-6350-264-14&P-12
NAVELEX EE 181-AA-OMI-120/E121 C-7359-60-1
TO 31S9-2FSS9-1-12
Table 5-1. Troubleshooting Procedures - Continued
Probable cause
Trouble
Corrective action
b. (cont)
2. (cont)
d. If these indications are correct, con-
nect positive meter lead to Data
Transmitter PC board A2-E14 and
negative meter lead to CU TB7-S6.
Meter should indicate 6.2 0.4 vdc.
Maintain this check for a period of
time to ensure that voltage is stable.
e. If voltage changes during any of
these checks, replace Data Trans-
mitter.
(1) To remove Data Transmitter, dis-
connect Transmitter wires
from TB6 and TB7 and remove
screws that secure Data Trans-
mitter to stand-offs in CU.
Be careful not to drop Trans-
mitter inside CU. Remove
code plug from its socket on
PC board A2.
(2) To replace Data Transmitter, re-
move screws that secure cover
and remove cover from new
Transmitter. Position code plug
from old Transmitter over soc-
ket X1 on PC board A2. Turn
code plug so that dot or notched
comer on plug lines up with
dot on PC board. Carefully
push plug into socket. Re-
place cover and secure with
screws. Position Transmitter
over standoffs in CU and insert
screws. Tighten screws to
secure Transmitter. Connect
wires to TB6 and TB7 in CU.
NOTE
c. Changes in power
supply voltage
to Data Receiver.
To gain access to Data Receiver for
troubleshooting, open Monitor
Cabinet, and turn off switch S1 on
power supply. Release swingout
rack. Remove screws that secure
status monitor module to rack
and remove module through front
of rack. Loosen captive screws
5-24

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