Kg 71Exp Troubleshooting; Table 8-4 Kg 71Exp Installation Troubleshooting - BENDIXKing XVUE TOUCH Installation Manual

8.3 KG 71EXP Troubleshooting

System Behavior
After power up, the KG 71EXP system
does not provide any valid data – all
attitude as well as air data remains
invalid at the PFD.
When CMT is connected and power is
applied, the connection between the
KG 71EXP and the CMT is not
established.
*Note that because the CMT Application SW cannot communicate with the KG 71EXP, there is no event
logged.
After power up, the KG 71EXP system
does not provide any valid data – all
attitude as well as air data remains
invalid at the PFD.
When CMT is connected and power is
applied, the connection between the
KG 71EXP and the CMT is correctly
established.
After power up, the KG 71EXP provides
all attitude and heading data but no air
data except the Indicated Airspeed.
After power up, the KG 71EXP provides
Altitude only, no airspeed.
89000109-002
Rev 2
© Honeywell International Inc. Do not copy without express permission of Honeywell.
For Use in Non-Certified Aircraft

Table 8-4 KG 71EXP Installation Troubleshooting

Possible Root Cause
The KG 71EXP does not power up when electrical power is
applied.
• Check the KG 71EXP circuit breaker.
• Check the KG 71EXP power wiring including the KG 71EXP
connector.
• If power installation is correct, restart the KG 71EXP. If prob-
lem persists, replace the KG 71EXP unit.
RAM Integrity Check fails
Application SW Integrity
check fails
HW Watch Dog PBIT Check
(Part 1 or Part 2) fails.
Software Part Number Check
fails.
NVM Application Data
Integrity Check fails.
Static IPT Sensor Check fails.
Event Log Code 5.
Differential IPT sensor Check
fails. Event Log Code 5.
Troubleshooting Action
• Restart the KG 71EXP. If
problem persists, replace
the KG 71EXP unit.
• Restart the KG 71EXP. If
problem persists, replace
the KG 71EXP unit.
• Restart the KG 71EXP. If
problem persists, replace
the KG 71 unit.
• Replace the KG 71EXP unit.
Note: If in-field SW updates
will be allowed, then the KG
71EXP SW should be re-
loaded first.
• Connect CMT and re-config-
ure the KG 71EXP system. If
problem persists, replace
the KG 71EXP unit.
• Restart the KG 71EXP. If
problem persists, replace
the KG 71EXP unit.
• Restart the KG 71EXP. If
problem persists, replace
the KG 71EXP unit.
xVue Touch Installation Manual
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