Saab R5 SUPREME AIS, Руководство по эксплуатации и установке

Страница: 115 / 156

R5
SUPREME - Navigation System
TROUBLESHOOTING
7000 118-301, A Page 115
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-working.
Historically, many of the parts sent to Saab 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 troubleshooter. 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.
8.4 Troubleshooting with the CDU Front P
anel LED’s
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.
8.4.1 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
9.2 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 9.2 for interpretation of the alarms.
If neither colour 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 .
8.4.2 RAIM LED (multi-coloured)
This LED shows the current RAIM status of the R5 Navigation System.