Quantcast Table 5-1. Troubleshooting Procedures - Continued - TM-5-6350-264-14-P-40033

 

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Table 5-1. Troubleshooting Procedures - Continued - TM-5-6350-264-14-P-40032
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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-40034
TM 5-6350-264-14&P-4
NAVELEX EE 181-AA-OMI-050/E121 DT546-M9442
T.O. 31S9-2FSS9-1-4
Table 5-1. Troubleshooting Procedures - Continued
Trouble
Probable cause
Corrective action
4. (cont)
a. (cont)
wires to Tb1and TB2. Adjust
sensitivity control per instruc-
tions in TM 5-6350-264-14/1.
(3) To remove Detector PC board,
tag and disconnect wires from
TB1. Disconnect red and black
pick-up assembly wires from PC
board. Remove screws that se-
cure board to chassis. Remove
PC board.
(4) To install new Detector PC board,
orient board so the terminal
strip is adjacent to the conduit
entrance hole. Secure the board
to the chassis with screws. Con-
nect wires to TB1, and connect
red and black pick-up assembly
leads to the marked terminals
on the board.
b. Bad Detector pick-
a. If PC board is good, check pick-up
up assembly.
assembly in Detector. Disconnect
red and black leads from PC board.
Set multimeter to ohms (highest
scale), and connect meter leads to
red and black leads. Meter should
indicate over 10,000,000 ohms.
b. If this indication is not present, re-
place pick-up assembly.
(1) To remove pick-up assembly, dis-
connect red and black leads
from PC board. Remove screws
that secure assembly to mount-
ing surface, and remove assem-
bly.
(2) To install new pick-up assembly,
orient assembly so that red and
black leads are toward PC board.
Tilt assembly so that edge near-
est PC board can be slipped
under PC board. Insert assembly
into chassis, flat against mount-
ing surface, and secure it with
screws. Connect red and black
leads to PC board.
5-18

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