L3 comminications Trilogy ESI-2000 - Page 54

ESI-2000
Pilot’s Guide4-4
Troubleshooting
CONDITION CAUSE/CORRECTIVE ACTION
After successful
alignment the Head-
ing digital readout is
removed and a red X
has replaced the digits
and tick marks on the
heading tape.
ESI-2000 congured for
magnetic heading only.
One or more of the following conditions
are detected.
1. Heading data is invalid.
• If heading tape and readout do not
become active, cycle power to the
ESI-2000.
• If the invalidity continues to be
observed after power cycle, the
ESI-2000 may be defective. Have
ESI-2000 checked by certied ser-
vice center.
2. If a “Mag Failed” message is shown
above the heading tape, then the Mag
is sending a failure message.
• If Mag begins working the message
is removed and the heading tape
and digital readout return.
• If heading tape and readout do not
become active, cycle power to the
Mag and the ESI-2000.
• If the invalidity continues to be
observed after power cycle the
Mag may be defective. Have Mag
checked by certied service center.
3. If a “No Mag Input” message is shown
above the heading tape, then no Mag
input signal is being detected.
• If the input data begins to be
received, the message is removed
and the heading tape and digital
readout return.
• If heading tape and readout do not
become active, cycle power to the
Mag and the ESI-2000.
< Continues on next page >
Corrective Actions (continued)