Leave the power ON during all power calibration procedures. The +12 VDC Power Supply (180387-1) provides +12 VDC output to the VC Box and Servo Drive Ethernet Switches, and the VC Box.
The quickest way to diagnose a problem in a TruFeel system is usually to start by checking the TruFeel Fault Codes.
This procedure is used to find the ETC+ Module, EECL Master Module, or TruFeel2 Module Firmware Bootloader and Application Version Numbers.
There are three locations to get Trufeel2 fault codes from.
The ECL3 system generates one unified fault log for all axes present on the system called Faults.html.
The ECL2 system generates one unified fault log for all axes present on the system called Faults.html.
I was recently asked to look at a problem of jittering HSI compass cards on 14X simulators. The HSI card was reasonably stable when a very old Servo Board was used, but it jittered with new Servo boards (131158-1)
The first thing to check is the Navigation data cards. They have to be identical, or the cross fill function won’t work. They used to write this on the card, but lately you have to read the expiration on the Garmin 430 screen on start up.
The Converter Testing Program allows the user to drive each channel to a specific voltage, to monitor switch and control functionality, and to monitor the effect of repositioning FTD controls for testing and calibration.
Each time FTD power is switched on, the POST runs automatically.