User's Manual

AT71-250 Transmitter Owner’s Manual

Press the ESC key as many times as necessary to return to the main menu.

5. The alarm system

An alarm is indicated by one of the 3 red LEDs located on the front panel of the digital exciter. The first

LED alarm is for transport stream (TS) absence (SYNC. LOSS). The next LED alarm is for a current

malfunction present on the equipment, and requires investigation, (see CURRENT ALARM). The third

LED indicates a past alarm (see PAST ALARM). This situation that past alarm, is no longer present. On

normal operation, just a green LED is ON, which confirms that the AC input power is present. Once a

CURRENT ALARM LED is ON, the origin of the alarm should be investigated.

At the Main Menu screen, access the System Alarm/Log.

Access System Alarms/Log

Select Current Alarms and press ENTER

 The “Alarm List Empty!” means the alarm is no longer present.

Main Menu : [0000]

Setup Menu

-> System Alarms/Log

Measurements

Remote Access

-> Current Alarms

Alarm Log

Drawer Alarms

System Alarm/Log [3000]

Clear Alarm Log

Current Alarms: [3100]

Alarm List Empty!