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
4. (Cont)
e. Defective
a. Set multimeter to ac volts. Connect leads to TB3-6
audio out-
and TB3-7. If meter indicates less than 16 vac,
put trans-
replace audio output transformer.
former T2.
(1) To remove transformer, note length and loca-
tion of transformer wires. Disconnect wires.
Remove mounting screws and lock washers
and remove transformer.
(2) To install new transformer, cut transformer
wires to proper length and install crimp ter-
minals. Position transformer on inner enclo-
sure and install mounting screws and lock
washers. Connect wires to terminal board.
f.
Defective
a. Set multimeter to ac volts. Connect leads to TB3-6
speaker.
and TB3-7. If meter indicates 18 +2 vac, replace
speaker.
(1) To remove speaker, loosen collar on connector
P2. Turn metal tab 90 degrees and discon-
nect 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.
Note length and location of speaker wires.
Disconnect wires from terminal board. Re-
move mounting screws from rear of enclo-
sure and remove speaker.
(2) To install new speaker, cut speaker wires to
proper length and install crimp lugs. Posi-
tion speaker on inner enclosure. Install
mounting screws through rear of inner en-
closure. Connect wires to terminal board.
5-27