TM 5-6350-264-14&P-10
NAVELEX EE 181-AA-OMI-110/E121 C-9412
T.O. 31S9-2FSS9-1-10
Table 5-2. Troubleshooting Procedures - Continued
Trouble
Probable cause
Corrective action
8.
(Cont)
Bad alarm
(3) Connect negative meter lead to
identification
chassis and positive meter lead
circuitry.
to J11 terminal associated with
(Cont)
PC board which had voltage on
TP1. If voltage is not present
on J11, turn off switch S1 on
top of power supply and re-
move PC board which had vol-
tage on TP1.
(a) To remove PC boards A1
through A6, as applicable,
place thumb or finger un-
der board ejector and lift
up until board pops out of
receptacle at back of status
processor. Then grasp PC
board and pull straight out.
(b) Set multimeter to ohms and
connect leads to applicable
terminal 6 of PC board re-
ceptacle and J11 terminal.
Meter should indicate 0
ohms.
h.
If meter indicates 0 ohms, install new
PC board A1 through A6 as appli-
cable.
To install new PC boards A1
through A6 as applicable, note
that these boards are identical
and may be installed in any
slot, 1 through 6. Turn PC
board so that plastic board
ejector is toward top. Align
board with guides at top and
bottom of status processor.
Slide board straight in until it
contacts receptacle at back of
processor. Then press firmly
on board until it seats com-
pletely in receptacle. Turn on
switch S1 on top of power sup-
ply. Depress TRANSMITTER
RESYNC switch S2. Wait
5-105
