TM 10-4610-232-12
b.
Turn the power switch (2) momentarily to "OFF", then "ON". Verify the following:
(1)
The main display (3) momentarily lights and displays "8.8.8".
(2)
The ALARM 1 (4), ALARM 2 (5), and the SYSTEM OK (6) momentarily light.
(3)
If following the above test the green SYSTEM OK light (6) goes out, and the main display (3) reads "P-1" or "P-2", refer to
the adjusting procedure below.
(4)
If the audible alarm is on, press the alarm reset button (7) located on the bottom of the case.
c.
Press the ALARM 1 button (8). The main display (3) should read "25". If display does not read "25", go to the adjusting
procedures described below.
d.
Press the ALARM 2 button (16). The main display (3) should read "50". If not, go to the adjusting procedures described
below.
e.
If the monitor is not operational:
(1)
Press the circuit breaker (19) IN.
(2)
Remove and check DC fuse (11) for continuity. (See repair section below.)
ADJUST.
a.
Press and hold the ALARM 1 button (8) and read the main display (3). The display should read "25". ALARM 1 can be
adjusted by:
(1)
Hold the ALARM 1 button (8) down and press the "up/down” pushbuttons (16) to set the correct value. When the correct
value is obtained, release the ALARM 1 button (8).
b.
Press and hold the ALARM 2 button (16) and read the main display (3). The display should read “50". ALARM 2 can be
adjusted by:
(1)
Hold the ALARM 2 button (16) down and press the "up/down" pushbuttons (9) to set the correct value. When the correct
value is obtained, release the ALARM 2 button (16).
c.
Refer to para. 3-39 for retest procedures.
REPAIR.
a.
Turn main circuit breaker at control panel to “OFF".
b.
Disconnect DC power by disconnecting P2-J2, twist and pull electrical connector at the DC power supply.
c.
Turn the cover slot (1) 1/4 turn clockwise and open door.
d.
Turn the fuse cap (12) counterclockwise and remove the fuse cap (12) and fuse (11) from the fuse holder (13).
(1)
Test the fuse using a multimeter set to the OHMS x 1 scale. Replace the fuse if it has no continuity.
(2)
Replace fuse (11), insert into the cap (12).
(3)
Insert into the fuse holder (13) and turn counterclockwise.
e.
Replace door window (21) by removing nuts (20) and washes (10). Place new window (21) into position, install washers (10)
and secure with nuts (20).
f.
Repair latch by replacing damaged components (14, 15, 17 and 18).
4-254 Change 12
