TM 5-6350-264-14&P-9
NAVELEX EE 181-AA-OMI-100/E121 DZ-204
T.O. 31S9-2FSS9-1-9
Table 5-1. Troubleshooting Procedures - Continued
Trouble
Probable cause
Corrective action
1. (Cont)
b. (Cont)
Route wires through hole in rear of inner enclosure. Connect
wires that run from terminal boards to conduits. Align notch
on P2 with J2 and connect P2 to J2. Lock metal tabs
together and tighten collar on connector P2.
c.
Defective
a.
Ensure that power switch S1 in Control Unit is turned off.
power
Slide inner enclosure part way out. Remove screws that
switch, S3.
secure switch bracket. Lower switch bracket to gain access
to switch terminals. Ensure that power switch S3 is on. Set
multi-meter to ohms. Connect meter leads to S3-1 and 2
(red wires). Note meter indication. Connect meter leads to
S3-3 and 4 (black wires). Note meter indication.
b.
If meter indicates over 100,000 ohms, replace switch S3.
(1) To remove switch S3, unscrew and remove knurled nut
from front of switch bracket. Push switch through hole in
bracket. Tag wires and use a soldering iron of 50 watts
maximum to remove wires from switch terminals.
(2) To install new switch S3, use a soldering iron of 50 watts
maximum to connect wires to switch terminals. Insert
switch through hole in switch bracket. Place knurled nut
over switch and tighten to secure switch. Place switch
bracket in position inside upper left corner or inner
enclosure. Insert screws through enclosure and tighten
to secure switch bracket. Slide inner enclosure all the
way into outer enclosure.
d.
Defective
a.
Ensure that power switch S1 in Control Unit is turned off.
power trans-
Disconnect negative lead from battery. Slide inner
former T1
enclosure part way out. Remove screws that secure switch
bracket. Lower switch bracket to gain access to terminals on
5-11
