Power Amplifier Leds; Fan Module Led; Figure 117: Power Amplifier Leds, Viewable Through A Drop-Down Door; Table 65: Power Amplifier Leds - Motorola ASTRO 25 GTR 8000 Manual

MN003286A01-E
Chapter 10: GTR 8000 Base Radio Reference
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
Power Off
Lamp Test
Not Transmitting
Transmitting at Full Requested
Output Power
Transmitting at Less Than Re-
quested Power
PA Failure
Receive Only
Transmitter Inhibited
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.
268
Transmit (XMIT)
Off
Amber
Off
Green
Amber
Red
Off
Off
Status Alarm
Off
Green Red
Green
Green
Green Red
Off Red
Off
Green Red (blinking)
Off
Off
Off
Off