Quantcast Table 5-1. Troubleshooting Procedures - continued - TM-5-6350-264-14-P-120026

 

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Table 5-1. Troubleshooting Procedures - continued - TM-5-6350-264-14-P-120025
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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-120027
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
Corrective action
Trouble
Probable cause
transmission lines will be connected
1. (cont)
c. (cont)
to a pair of terminals: A and A, or
B and B, or C and C, or D and D, or
E and E on TBDD, or TBEE, or TBFF,
or TBGG, or TBHH. If a 5-zone or
25-zone Monitor Cabinet is used,
check interconnection wiring dia-
grams to determine to which termi-
nals the data transmission lines are
connected,
b. Set multimeter to ohms and check be-
tween the two transmission wires, and
between each wire and ground. Meter
should indicate over 100,000 ohms.
c. Short the two wires together at one end
of the transmission line. At other end
of transmission line, use meter to
check between the two wires. Meter
should indicate less than 100,000 ohms.
d. If any of these indications are incorrect,
repair or replace transmission lines
per steps in TM 5-6350-264-14/1,
System Manual.
a. Ensure that Data Transmitter wires are
d. Bad Data
connected to CU TB6 and TB7. Set
multimeter to dc volts and connect
positive meter lead to CU TB7-S5
and negative meter lead to TB7-S6.
Meter should indicate 20 1 vdc.
(1) If voltage is below tolerance dis-
connect red and black wires
from these terminals and connect
positive meter lead to TB7-S5
and negative meter lead to TB7-
S6. Meter should indicate 20 1 vdc.
(2) If voltage is below tolerance, check
fuse F2 on CU power supply.
(3) If fuse F2 is good, check CU power
supply per steps in TM 5-6350-
264-14/10&P.
5-9

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