Quantcast Table 5-1. Troubleshooting Procedures-Continued - TM-5-6350-264-14-P-80028

 

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Table 5-1. Troubleshooting Procedures-Continued - TM-5-6350-264-14-P-80027
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TM-5-6350-264-14-P-8 Switch Alarm Latching SA-1954( )/FSS-9(V) NSN
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Table 5-1. Troubleshooting Procedures-Continued - TM-5-6350-264-14-P-80029
TM 5-6350-264-14&P-8
NAVELEX EE181-AA-OMI-090/E 121 SA-1954
T.O. 31S9-2FSS9-1-8
Table 5-1. Troubleshooting Procedures - Continued
Trouble
Probable cause
Corrective action
4. (cont)
b. (cont)
b. If these indications are not correct,
replace the PC board.
(1) To remove PC board, remove screws
that secure the PC board to the
relay bracket. Tag the wires, and
use a soldering iron of 50 watts
maximum to remove them from
the PC board terminals.
(2) To replace PC board, use a solder-
ing iron of 50 watts maximum
to solder wires to PC board
terminals. Secure PC board
to relay bracket with screws.
c. Bad tamper alarm
a. Set multimeter to ohms and connect
switch (TAS).
leads to TB1-5 and TB1-6. Meter
should indicate infinity. Depress
TAS. The meter indication should
change to 0 ohms.
b. If these indications are not correct, re-
place the TAS.
(1) To remove TAS, disconnect switch
wires from TB1-5 and TB1-6.
Remove screws that secure switch
mounting bracket to component
mounting plate, and remove mount-
ing bracket. Remove nut and lock
washer from switch. Remove
switch from mounting bracket.
Use a soldering iron of 50 watts
maximum to remove wires from
switch.
(2) To replace TAS, set meter to ohms
and check switch terminals. Meter
should indicate 0 ohms with switch
depressed and infinity with switch
released. Use a soldering iron of
50 watts maximum to solder wires
to switch terminals. Insert switch
through hole in mounting bracket.
5-14

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