Sandel ST3400 - Gps;Fms 1

Select ST3400 to Maintenance Page 8: RAD ALT
SIGNAL
FUNCTION
RESULT
PASS
FAIL
#1 Radar Altimeter
Receiver/Transmitter.
Activate Rad Alt self
Test
RA1 #1 Radar Altimeter Value should
indicate within +-5 feet of Rad Alt
test output.
#1 Radar Altimeter
Fail, pull circuit
breaker to go invalid.
RA1 FAIL
INPUT J2-13
Verify value of #1 Radar Altimeter
Fail indicates, “J2-13 < +14VDC”.
#1 Radar Altimeter
Fail reset circuit
breaker.
RA1 FAIL
INPUT J2-13
Verify value of #1 Radar Altimeter
Fail indicates, “J2-13 > +14VDC”.
#1 Radar Altimeter
Valid, pull circuit
breaker to go invalid.
RA1 VALID Verify value of #1 Radar Altimeter
Valid indicates, “INVALID DATA”.
#1 Radar Altimeter
Valid reset circuit
breaker.
RA1 VALID Verify value of #1 Radar Altimeter
Valid indicates, “VALID”.
Rotate the DH Knob
through Decision
Height
Decision
Height
Aural callout “MINIMUMS”
7.2.18 GPS/FMS 1
Select ST3400 to Maintenance Page 9: GPS/FMS 1
SIGNAL
FUNCTION
RESULT
PASS
FAIL
#1 GPS receiver
locked on with valid
signal
#1 GPS
POSITION
#1 GPS Lat and Long value
displayed should match position on
#1 GPS
Turn off #1GPS
receiver.
#1 GPS
POSITION
#1 GPS position value Lat and Long
will not be displayed.
Check GPS Altitude if interfaced to ST3400
#1 GPS receiver
locked on with valid
signal
#1 GPS
ALTITUDE
#1 GPS Altitude should match
altitude displayed on GPS receiver.
NOTE: Press “VALUE” softkey and then UP/DOWN softkeys to access to
additional parameters and GPS Altitude.
82002-IM-L ST3400 INSTALLATION MANUAL 7-27