TM 11-5895-846-14
Table 8-13. Alarm Monitor, Troubleshooting Chart
Item of Check
Test Conditions
Normal Indications
Remarks
d. Place UUT fault switches 1
+ 5 V approx.
through 12 (S2 through S13) to
cation check switch
the NORMAL position. Connect
operation, wiring from
S3-1 to unit connector
to unit connector XA1 pin 34 (+)
P2, and wiring from
and ground. Momentarily place
S3-5 to XA1-34.
switch S3 to OVERRIDE and
then return to NORMAL. Ob-
serve the multimeter for a
momentary indication.
e. Repeat step d above for
If no indication check as
switches 3 through 12 (S4 through
above for the associated
S13) and connect the (+) lead of
switch, wiring, and
the multimeter to XA1 as listed
XA1 pin number (see
below:
S4:XA1-33
+5 V
S5:XA1-36
Gnd
S6:XA1-31
+5V
S7:XA1-37
Gnd
S8:XA1-35
Gnd
S9:XA1-30
+5V
S10:XA1-29
+5 V
S11:XA1-14
+5 V
S12:XA1-41
Gnd
S13:XA1-45
+5V
f. Place UUT fault switches 1
+5V
through 12 (S2 through S13) to
the NORMAL position. Connect
to XA1 34 (+) and ground.
+5 V
J2-E, S3-3
On the test fixture momentarily
place switch S20 to the 1 position
and then return to the OFF posi-
tion. Observe the multimeter
for a momentary indication.
g. Connect the (+) lead of the multi-
If no indication, check figure
meter to XA1 as listed below.
On the test fixture momentarily
the associated switch,
place the appropriate switch (S
wiring and unit connec-
no.) to the 1 position and then
tor J2 pin as listed
return to the OFF position.
below:
XA1-33 (S19)
+5 V
J2-F, S4-3
XA1-37 (S23)
+5 V
J2-G, S7-3
XA1-31 (S17)
+5 V
J2-H, S6-3
XA1-36 (S22)
+5 V
J2, J, S5-3
XA1-35 (S21)
+5 V
J2-K, S8-3
XA1-30 (S16)
+5V
J2-F, S9-3
XA1-29 (S15)
+5 V
J2-G, S10-3
XA1-14 (S4)
+5 V
J2-Z, Sll-3
XA1-41 (S24)
+5 V
J2-B, S12-3
XA1-45 (S28)
+5 V
J2-R, S13-3
a. On the UUT connect one end of a
6.
Safety wiring.
DS9:ON
If no indication, check wiring
test lead to unit ground. Connect
from XA1-10 to J3-P.
the other end of this test lead
to XA1-10. Observe indicator
DS9 on the test fixture.
b. On the UUT, connect one end
DS8:OFF
If there is an indi-
of a test lead to XA1-25. Con-
cation, check wiring
nect the other end of this test
from XA1-25 to J3-D.
lead to ground. Observe in-
dicator DS8 on the test fixture.
8-39