User`s manual
Eagle 2000 – 2kW FM Broadcasting Amplifier
User’s manual – Page 40 of 66
12 TROUBLESHOOTING AND ALARMS
If all instructions described in the current manual are followed, Eagle 2000 will guarantee several years of perfect service. However,
should problems arise, see this chapter before contacting the local authorized assistance point.
12.1 Types of alarms and relevant LEDs information
During the operation, two kinds of alarms could happen: non critical alarms (e.g. low output power) and critical alarms.
• Non critical alarms
- the ON and ALARM LEDs are glowing and the STAND-BY LED is off. In this condition the
equipment can go on working
• Critical alarms - the ON LED is off and the ALARM and STAND-BY LEDs are glowing. In this condition the equipment
automatically gets into stand-by mode and the LCD display shows the active alarm name
All alarms are auto-resettable. This means that if an active critical alarm ends (and there are no other active critical alarms) the
equipment status automatically reverts from the stand-by mode to the operation one.
Non critical alarms:
• Reflected power level equal to 200W - when reaching this value, the equipment reduces its output power in order to keep the
reflected power below 200W. The ALARM LED glows, but the unit is still working. If the reflected power exceeds the 200W
threshold, the alarm becomes a critical one and the equipment automatically gets into stand-by mode
• Heatsink temperature – if this temperature exceeds the 90°C threshold, the ALARM LED glows, but the unit is still working. If
the temperature reaches 100°C, the alarm becomes a critical one and the equipment gets into stand-by mode.
• Environmental temperature – on the internal side of the front panel there is a temperature sensor in TO220 case which
measures the environmental temperature. If this temperature exceeds 45°C, a non-critical alarm is issued and the amplifier
reduces its output power according to the internal temperature. If the temperature exceeds 55°C, the equipment automatically
gets into stand-by mode, generating a critical alarm.
Temperature sensor (TO220 case)
Power Supply Fan
Front panel