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Page Title: Table 5-1. Troubleshooting Procedures - Continued
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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
3. (cont)
h. (cont)
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 from
TB1 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 en-
trance holes. Secure the PC
board to the chassis. Connect
wires to TB1 and TB2. Adjust
sensitivity control per instruc-
tions 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 indi-
cate 0 ohms.
e. If the meter indicates any resistance,
check terminal strip and PC board
for damaged contacts. Ensure that
all terminal connections, screws, and
conduit lock nuts are tight.
f. If there is any damage to terminal
strip or PC board, replace PC board.
(1) To remove Detector PC board,
tag and disconnect wires from
TB1. Disconnect red and black
ick-up assembly wires from PC
board. Remove screws that
secure board to chassis. Remove
PC board.
(2) 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-
ect wires to TB1, and connect
ed and black pick-up assembly
5-16

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