Quantcast Table 5-1. Troubleshooting Procedures - Continued - TM-5-6350-264-14-P-40021

 

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Table 5-1. Troubleshooting Procedures - Continued - TM-5-6350-264-14-P-40020
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TM-5-6350-264-14-P-4 Detector Vibration Signal DT-546/FSS-9(V) NSN
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Table 5-1. Troubleshooting Procedures - Continued - TM-5-6350-264-14-P-40022
TM 5-6350-264-14&P-4
NAVELEX EE 181-AA-OMI-050/E121 DT546 M9442
TO 31S9-2FSS9-1-4
Table 5-1. Troubleshooting Procedures - Continued
Trouble
Probable cause
Corrective action
1. (cont)
d. (cont)
gain control per instructions in TM 5-
2. Nuisance alarms
6350-264-14/1.
e. Loose interconnecting
Ensure  that  all
conduit
and
wire
wiring.
connections are tight.
a. Stray vibration in the
Check  all  mounting  hardware  at
secure area.
Detector chassis and conduit clamps to
ensure that all units are mounted rigidly.
Ensure that all mounting surfaces are
rigid and not subject to vibration by
wind, wildlife, or loose doors and
windows.
b. Loose ground
a.
Set multimeter to ohms, and check
connections.
between TB1-9, TB2-9, chassis, and
conduit in the Processor. The meter
should indicate 0 ohms.
b.
If the meter indicates any resistance,
check terminal strips and PC board
for damaged contacts. Ensure that all
terminal connections, screws, and
conduit lock nuts are tight.
c.
If there is any damage to terminal
strips or PC board, replace PC board.
(1)
To remove Processor PC board, tag
and disconnect wires fromTB1 and
TB2. Remove screws that secure PC
board to the chassis. Lift PC board
out of chassis.
(2)
To install new PC board, orient the
board so the terminal strips are
adjacent to the conduit entrance
holes.  Secure the PC board to the
chassis with screws. Connect wires to
TB1 and TB2.
Adjust sensitivity
control per instructions in TM 5-6350-
264-14/1.
d.
Set  meter  to  ohms,  and  check
between TB1-9, chassis, and conduit
in the Detector.  The meter should
indicate 0 ohms.
5-6

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