Nautel NV3.5LT, Troubleshooting Manual

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NV5LT/NV3.5LT TROUBLESHOOTING MANUAL RESPONDING TO ALARMS
PAGE 4.1.30 VERSION 3.3 2016-03-10
Troubleshooting Tips
 RF Power Module Faults
 Power Supply Module and LVPS Faults - see page 4.1.34
RF Power Module Faults
There are many alarms on the front panel UI or remote AUI, prefixed by the text RF Module , that
indicate faults related to one or more of the RF power modules. The number that appears after
RF Module (1-2) identifies the position of the affected module. Numbers correspond to modules in a
left to right, top to bottom sequence, as viewed from the front of the transmitter.
1. Check the forward power reading on the UI or AUI. If it is less than the preset level, one or more RF
power modules are defective. Proceed to
“RF Power Module Fault Validation” on page 4.1.31 .
2. If the forward power reading in Step 1 is normal, go to the front panel UI’s Alarms screen or click
the remote AUI’s Status button on the remote AUI to check for other alarms that may have
triggered the RF power module alarm.
3. From the remote AUI’s Meter List View page (see Figure 4.1.6 ), click the i (information) button
next to the RF Modules # folder in the Transmitter Layout section to view the status screen for all
modules or click the right-hand arrow to expand the RF Modules folder to allow clicking on the
i
button for an individual RF Module (e.g., RF Module 1, see Figure 4.1.7 on page 4.1.31 ). This screen
displays critical parameters for both RF power modules. As an aid in troubleshooting, compare
parameters to isolate possible module faults.
Figure 4.1.6: AUI - Meter List View page
1. Click here to open the
Meter List View page
2. Click here to open the
RF Module status screen
3. Click here to expand
folder to allow viewing of
each RF Module’s
status screen