NV5/NV3.5 Troubleshooting Manual Responding to alarms
Issue 3.2 2014-12-10 Page 1-47
1. Switch off (disable) the transmitter’s ac power source.
2. Open the front door and locate the single-board computer (SBC) on the back of the door.
3. Disconnect all connectors from the current SBC. See Figure 1.8 on page 1-46 for details.
Remove the SBC from the front door by removing its four M3 securing screws.
4. Locate or obtain the replacement SBC (Nautel Part # 206-8973). If the replacment SBC
does not contain a card (U5) (see Figure 1.8 on page 1-46), obtain the card from the SBC
removed in Step 3 and insert it into the replacement SBC.
5. Install the replacement SBC using its four M3 securing screws. Use Figure 1.8 on page 1-46
to reconnect all mating connectors. Pay particular attention to ribbon cable connectors
U6W1P1 and U6W2P1, which have specific connection requirements.
6. Switch on (enable) the transmitter’s ac power source. Ensure RF is off.
7. From the AUI’s Software Configuration page, select Upgrade Software and view the files
in the Select A Boot Image list. These are the files on the card. Select the latest version of
software from the list (e.g., V2_7) and press the About button. Information about the
transmitter device’s current software versions and the selected upgrade file should appear
(see Figure 1.9 on page 1-48).
8. For each device shown in Figure 1.9 on page 1-48, compare the Current Version column
with the Upgrade Version column. If the Upgrade Version value is a higher number, an
upgrade is available for that device from the selected software upgrade file. If desired, close
the Upgrade Information screen and upgrade the software by pressing Begin.
NOTE:
Pressing
Begin initiates the software upgrade process. Contact Nautel if you are unsure if you
should perform a software upgrade.
For more details on performing a software upgrade, refer to the “Upgrading software” procedure
in Section 4, “Non-standard maintenance” on page 4-1 of the Operations and Maintenance
Manual.
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