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Page Title:
Table 3-2. Troubleshooting Procedures |
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|  TM 11-5825-270-10
Table 3-2. Troubleshooting Procedures
Item
Symptom
Probable Cause
I Corrective Action
a. Check external ac circuit
a No ac power
When receiver is on, all front panel
1
breakers.
b. Power cord from receiver not
lights remain off, indicating fuse is not
b. Plug power cord to ac outlet.
lighted
plugged to ac outlet
Replace fuse (fig. 3-1).
Indicating fuse is lighted; all other front
2
Front panel indicating fuse is
panel lights are off.
blown.
Replace lamp (fig. 3-1).
NORMAL light stays off
3
Defective lamp in NORMAL light
Defective lamp in POWER light
Replace lamp (fig. 3-1).
NORMAL light is on, POWER light is
4
Defective lamp in ALARM light
off.
Replace lamp (fig. 3-1).
During alarm test, audible alarm
5
sounds but ALARM light does not
Receiver defective
come on.
Report equipment failure to
Aural alarm does not sound during
6
Receiver defective
higher category maintenance.
alarm test.
Report equipment failure to
Alarm test function cannot be initiated
7
higher category maintenance.
or completed successfully.
Figure 3-1. Replacement of Lamps and Fuses
3-2
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