L3 comminications Trilogy ESI-1000 Pilot's Manual page 42

Troubleshooting
Corrective Actions
conDition
SW Release 1.0 and
2.0 only. Heading digi-
tal readout is removed
and heading tape
elements replaced with
red X.
Red X in place of
Altitude
OR
Red X in place of
Airspeed
Screen is green
4-4
(continued)
caUse/correctiVe action
Heading data is invalid.
• If the heading tape and readout do
not become active, cycle power to
the ESI-1000.
• If the invalidity continues to be
observed after power cycle check
the system status for a Mag Fail
message. If the message is there the
Mag may be defective. Have the Mag
checked by certified service center.
Indicates loss of data.
• Cycle power to the ESI-1000.
• If the invalidity continues to be
observed after power cycle, check
the system status screen for a failure
message. If message is observed
have ESI-1000 checked by certified
service center.
If the screen input data locks-up, the
screen elements are removed and re-
placed with the green screen.
• Cycle power to the ESI-1000.
• If the green screen continues to be
observed after power cycle the ESI
may be defective, remove and return
to manufacturer.
ESI-1000
Pilot's Guide