R5
SUPREME - Navigation System
TROUBLESHOOTING
7000 118-383, P11A1
Page 126
13
TROUBLESHOOTING
One of the basic ideas with troubleshooting is to solve a supposed problem on site instead of
immediately sending the suspected part for a costly repair. Solving a supposed problem would
in this aspect mean both to rectify the real problem, but it could also mean that the suspected
part is confirmed to be working or not.
Historically, many of the parts sent to TransponderTech for repair have in fact been confirmed
working instead. Another common scenario is that the equipment has faulty I/O settings or
other erroneous configurations, easy to fix on site. A proper troubleshooting would ideally
prevent those unnecessary returns of fully functional equipment.
There are numerous ways to troubleshoot a navigation system installation, much dependant
on the skill and experience level of the trouble-shooter. The preferred approach may probably
also differ between different individuals, and there is no such thing as right or wrong.
This chapter is not intended to be a step-by-step troubleshooting instruction, but instead offer
a toolbox with some different techniques on how to troubleshoot the R5 SUPREME Navigation
System.
13.1 Troubleshooting with the CDU Front Panel LEDs
It is very fast and effective to use the LED’s to verify the status of the R5 SUPREME CDU.
This should always be the first step in the troubleshooting.
STATUS LED (multi-coloured)
-
The STATUS LED is constantly lit green when the R5 SUPREME Navigation System
is operating and no alarms are active.
-
The STATUS LED is constantly lit red if there is one or more acknowledged active
alarms in the system, but no unacknowledged alarms. Refer to section 14.2 for
interpretation of the alarms.
-
The STATUS LED is flashing red if there are one or more unacknowledged alarms in
the transponder. Refer to section 14.2 for interpretation of the alarms.
If neither of the colours are lit, nor flashing, then check the power supply and make sure that:
The voltage is correct and stable
The polarity is correct and not switched
The available current is sufficient for start up
The external fuse is functional
The power cable is undamaged
The power connector is properly connected and secured
Also check so that the LED backlight is not completely turned off in the
Visual Settings
view
accessed from
Main Menu
Maintenance
Configuration
Display
Visual
Settings
.
