Nautel NV5LT Troubleshooting Manual

Contents

Nautel NV5LT Troubleshooting Manual Manual pdf 38 page image

NV5LT/NV3.5LT TROUBLESHOOTING MANUAL RESPONDING TO ALARMSPAGE 4.1.30 VERSION 3.3 2016-03-10Troubleshooting Tips RF Power Module Faults Power Supply Module and LVPS Faults - see page 4.1.34RF Power Module FaultsThere are many alarms on the front panel UI or remote AUI, prefixed by the text RF Module, thatindicate faults related to one or more of the RF power modules. The number that appears afterRF Module (1-2) identifies the position of the affected module. Numbers correspond to modules in aleft 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 RFpower 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 clickthe remote AUI’s Status button on the remote AUI to check for other alarms that may havetriggered the RF power module alarm.3. From the remote AUI’s Meter List View page (see Figure 4.1.6), click the i (information) buttonnext to the RF Modules # folder in the Transmitter Layout section to view the status screen for allmodules or click the right-hand arrow to expand the RF Modules folder to allow clicking on the ibutton for an individual RF Module (e.g., RF Module 1, see Figure 4.1.7 on page 4.1.31). This screendisplays critical parameters for both RF power modules. As an aid in troubleshooting, compareparameters to isolate possible module faults.Figure 4.1.6: AUI - Meter List View page1. Click here to open theMeter List View page2. Click here to open theRF Module status screen3. Click here to expandfolder to allow viewing ofeach RF Module’sstatus screen