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Perform all fault isolation procedures provided in this section. Record and document all 
test results including: LEDs function and maintenance port data outputs (report items 21 
and 23). 

Enable report items 18, 19, and 20 (Port) or items 6, 7, and 8 (Starboard) to record antenna, 
ACU, and DLNA related faults. Enable other report items as required. 

Conduct the fault isolation procedures provided in this section and record the resulting 
system information. Then send the system information collected to EMS SATCOM HSD 
product support for analysis.

Before proceeding with fault isolation procedures, refer to the advisories 

paragraphs in the introduction section of this manual.

(1) Activating and Saving a Diagnostic ‘Reports’ File

Use the following procedure to save or “capture” a troubleshooting report for the HSD 
transceiver. Remember to date and save the file. Annotate the file with any system 
anomalies or unique operating environments that may in anyway affect system 
functionality (e.g., physical location of aircraft or transceiver, Land Earth Station being 
used, list of connected devices).

In Multi-Channel systems, activate console mode and select the applicable HSD-X 
unit you want to monitor before proceeding with this procedure. (To activate console 
mode, in Menu 18, press X.)

Open a log file on the maintenance port, terminal program. (If you are using 
HyperTerminal, use the “Transfer, capture text” function.)

Power the system on or if applicable reset the system.

Enter maintenance mode on the maintenance port using maint as the password. 
(Access level can be changed using menu 1, L command if the system is running 
and the password level is menu.)

Press the equals sign (=) key to activate reports 21 and 23 (toggle off all other 
report items).

Press S to “SAVE” these reports as default. This enables the user to view these 
reports on subsequent HSD power-ups or “Reset” entries. 

Reset the system by: cycling the power to the unit; pressing the reset button on 
the HSD front panel; or in menu 2, press Z to reset the system. 

Log on to the maintenance port using the password: maint

The system should restart and ocean registration will take place (approximately 

 

two minutes).

After the Beam Registration process completes, press Ctrl+N to display menu 2.

Press V to display the software versions of the system.

Make a call from the system or execute the procedure or sequence that causes 
the call failure. Make a note of the call progress. For example: Did you get dial 
tone? Was the call successful?

If applicable, attempt a call from the second channel.

Press = to display the current “reports” profile of the system (as noted in step 4).