89000109-002 xVue Touch Installation Manual
Rev 2 Page 8-1
© Honeywell International Inc. Do not copy without express permission of Honeywell.
For Use in Non-Certified Aircraft
8 TROUBLESHOOTING
If thexVue Touch fails to work, as it should, verify its operation using the xVue Touch Pilot’s Guide and
identify the functionality that has been lost. Match the symptom to the discrepancy to get an idea for a
corrective action.
Table 8-1 xVue Touch System Troubleshooting Chart
Symptom Causes Corrective Action
Display Does Not Power Up
Improper Power/Ground
• Check KSD 100EXP current draw,
reference Table 4-4
• Check wiring to KSD 100EXP
Circuit Breaker Not Set or
Defective
• Check and/or replace circuit
breaker
KSD 100EXP Defective • Replace KSD 100EXP
Smart Touch Not Working
Touch Sensor Failure
• Reset KSD 100EXP
• Remove frost or dust from IR bar
(see Section 9.2.4.2)
• If fault persists, replace KSD
100EXP
Inconsistent/Degraded Touch
Response
• Perform Manual Touch Calibration
(see Section 8.2)
KSD 100EXP Defective • Replace KSD 100EXP
Altimeter, Airspeed Failures
(Red X)
Improper Pitot/Static
Connection
• Verify pitot static connections
• Check for blockage in pitot static,
water, or debris
Communication failure between
KG 71EXP and KSD 100EXP
• Cycle power on KG 71EXP and KSD
100EXP
KG 71EXP Defective
• Check KG 71EXP current draw, ref-
erence Table 4-4
• Check wiring from KG 71EXP to
KSD 100EXP
• Replace KG 71EXP
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