Table of contents
4 99-145912-A
Chapter 8 Service & maintenance
8.1 To get support ....................................................................................................................8-2
8.1.1 Help desk and diagnostic report ..................................................................................8-2
8.2 Software update ................................................................................................................8-5
8.2.1 Prerequisites ..........................................................................................................................8-5
8.2.2 Software update (ADU, ACU) ........................................................................................8-5
8.2.3 Software update (GMU) ...................................................................................................8-7
8.3 Satellite profiles and VSAT modem profiles ...............................................8-8
8.3.1 Satellite profiles ...................................................................................................................8-8
8.3.2 VSAT modem profiles .......................................................................................................8-9
8.4 Status signalling with LEDs and status messages ................................8-11
8.4.1 Overview ...............................................................................................................................8-11
8.4.2 LEDs of the ADU modules ............................................................................................8-12
8.4.3 LEDs in the ACU ................................................................................................................8-12
8.4.4 LEDs of the GMU ..............................................................................................................8-13
8.5 Removal and replacement of the ACU .........................................................8-14
8.6 Removal and replacement of ADU modules ............................................8-15
8.6.1 Overview ...............................................................................................................................8-15
8.6.2 To replace the GPS module ......................................................................................... 8-24
8.6.3 To replace the VSAT Interface Module (VIM2) ................................................8-26
8.6.4 To replace the DC-Motor Driver Module (DDM) ..............................................8-28
8.6.5 To replace the BUC Control Module (BCM) ........................................................8-32
8.6.6 To replace the Pedestal Control Module (PCM) ................................................8-34
8.6.7 To replace motor and encoder .................................................................................. 8-35
8.6.8 To replace the Drive Belts ............................................................................................ 8-48
8.6.9 To replace the Zero Reference Module (ZRM) ..................................................8-54
8.6.10 To replace the Inertial Sensor Module (ISM) .....................................................8-60
8.6.11 To replace the RF Pack ..................................................................................................8-60
8.6.12 To replace the BUC .........................................................................................................8-62
8.6.13 To replace the LNB ..........................................................................................................8-64
8.6.14 To replace the rotary joint ...........................................................................................8-65
8.6.15 To replace a wire-rope isolator .................................................................................. 8-65
8.7 To update VIM2/PCM calibration data ........................................................8-67
8.8 Inspection of mechanical components .......................................................8-69
8.8.1 Inspection for critical wear .........................................................................................8-69
8.8.2 Inspection of wire-rope isolators .............................................................................8-69
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