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Operator's Manual
MX421 Reset
Engineering Mode
190
Special tools are available in the MX420 CDU that can be used to reset
the GPS and Beacon engines in the MX421. Use them only in extreme
cases when the GPS or beacon receiver fails or takes too long to lock-
on. These reset tools when used will clear the satellite almanac memory
of the GPSengine and reset all settings to factory default conditions.
MX421 Reset Procedure:
This procedure will work only under Engineering level 3.
1. Press the AUX key several times to bring up the AUX7 screen.
2. Press the left-most softkey 3 times (to bring-up Eng'g level 3).
3. Press the Ekey.
4. Press the MX421 Resetsoftkey to reset the GPS engine (or the
CSI Reset softkey to reset the beacon engine).
5. Press the Ekey to exit.
6. Press the GPS key to display the GPS or DGPS Status screen.
Version 1.5
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