10.1.3
Power Amplifier LEDs
Figure 117: Power Amplifier LEDs, viewable through a drop-down door
The power amplifier LED color must be observed to interpret the power amplifiers condition. For
example:
• If the Alarm LED is red and the Transmit and Status LEDs are not lit, the condition is “PA Failure”
and the power amplifier module should be replaced.
Table 65: Power Amplifier LEDs
Condition Transmit (XMIT) Status Alarm
Power Off Off Off Off
Lamp Test Amber Green Red
Not Transmitting Off Green Off
Transmitting at Full Requested
Output Power
Green Green Off
Transmitting at Less Than Re-
quested Power
Amber Green Red
PA Failure Red Off Red
Receive Only Off Off Off
Transmitter Inhibited Off Green Red (blinking)
10.1.4
Fan Module LED
The fan module has one Fan Alarm LED visible on the lower right corner of its front panel. The Alarm is
red during Lamp Test (for 1 second or less), and remains red if the fan failures. A fan failure alarm
occurs if the built-in speed sensor detects if either fan drops 30% below rated speed. A red Fan Alarm
indicates that the fan module must be replaced.
MN003286A01-E
Chapter
10: GTR 8000 Base Radio Reference
268
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