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)
k.
If meter indicates 68 +7 vac, turn off power switch S3.
Disconnect Pi/J1 and connect meter leads to P1-1 and P1-2.
Turn on switch S3.
1.
If voltage is not within tolerance (68 +7 vdc), replace power
transformer.
(1) To remove transformer, note length and connection
points of transformer wires. Disconnect wires. Remove
mounting screws and washers. Remove transformer.
(2) To install new transformer, cut transformer wires to
proper length and install crimp lugs. Position transformer
on inner enclosure and install mounting screws and
washers. Connect transformer wires.
m. If voltage is within tolerance, replace electronics assembly.
CAUTION
Inner enclosure is heavy. Use caution when removing
outer enclosure.
(1) To remove electronics assembly, loosen collar on
connector P2. Turn metal tab 90 degrees and
disconnect P2 from J2. Tag and disconnect wires that
run from terminal boards to conduit. Slide the inner
enclosure out of the outer enclosure. Place inner
enclosure on bench. Remove screws, lock washers, and
washers and disconnect connector J1 from P1. Remove
mounting screws from rear of inner enclosure and
remove electronics assembly.
(2) To install new electronics assembly, position assembly
on inner enclosure. Install mounting screws through rear
of inner enclosure. Connect J1 to P1 and install screws,
lock washer, and washers. Slide inner enclosure into
outer enclosure.
5-10
