NV5LT/NV3.5LT TROUBLESHOOTING MANUAL
RESPONDING TO ALARMS
PAGE 4.1.4
VERSION 3.3 2016-03-10
Identifying an Alarm
You can identify an alarm locally by viewing the front panel (see
) or
remotely by viewing the AUI’s
Transmitter Status
page (see
“Controller/Exciter Front Panel Alarm
).
Front Panel Alarm Checks
There two ways to check for alarms on the front panel:
View Alarms Screen - see page 4.1.5
Alarm/Status LEDs
There are four LEDs on the left-hand side of the LCD display that provide information about the
operational status of various sections of the transmitter -
Exciter
,
Power Amplifier
,
Output Network
and
Power Supply
(see
). The LEDs can glow green, amber or red. Typically, green indicates
normal operation, amber indicates a warning, and red indicates a fault or error.
Figure 4.1.1: Alarm/Status LEDs
When an LED is:
Green - transmitter is on, with no known faults.
Amber - a fault is present that may cause a reduction in RF power, but the transmitter is still
producing RF power.
Red - a fault is present and the transmitter is not producing RF power.
When a fault is present, the transmitter may still produce an RF output. In this case, or if the transmitter
has shut down, you should schedule and commence more in-depth fault diagnosis. See
.
Exciter
Power Amplifier
Output Network
Power Supply
Summary of Contents for NV3.5LT
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Page 307: ...VERSION 3 3 2016 03 10 MD 8 Figure MD 8 NAPA31C Power Amplifier PWB Q1 ...
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