Garmin Software Version 0321.23 Manual Pagina 174

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Page 5-42 G1000 System Maintenance Manual – Diamond DA40/40F
Revision G 190-00545-01
5.7 GDU 104X Troubleshooting
5.7.1 GDU 104X Common Problems
Table 5-24. GDU 104X Common Problems
Symptom Recommended Action
Display is blank
Cycle power
9 If GDU recovers, observe display for yellow text containing error
information at the top of the screen. If message indicates
software need to be re-loaded, then re-load software. Otherwise,
replace the GDU.
Ensure GDU is receiving power. If a circuit breaker is tripped, determine
source of short before resetting breaker.
Ensure circuit breakers have not failed and power wire connections are
secure.
Use a bright light to verify LCD is active.
9 Manually turn up backlight and load configuration files to the PFD
and MFD.
Ensure slide lock is fully engaged with the locking tabs on the back of the
unit.
9 If slide lock is not fully engaged, remove connector and verify the
locking tabs on the GDU are perpendicular to the connector. If
necessary, straighten them before reseating connector.
Reinstall GDU
Switch MFD and PFD
9 If problem follows unit, replace defective display. Please note the
position it failed in (PFD or MFD).
9 If problem does not follow unit, troubleshoot aircraft wiring for
fault.
Display resets
Display flickers
SD card is stuck in GDU
DO NOT insert a screwdriver of any length into the card slot.
DO NOT pry against the overlay.
DO NOT force the SD Card out.
Insert a small screwdriver in the groove on the side of the exposed end of
the card to pull out the card.
Push the card in further to release the card locking mechanism.
Check SD Card for having more than one label. Two or more labels on the
card will cause sticking.
9 Remove all but one label.
Ensure the SD card is from SanDisk. Use of other SD Cards is not
recommended.
If card was inserted with the label facing to the right, do not attempt to
remove. Return the unit to Garmin for repair
Engine instruments are missing on
the MFD
Clear user settings on each GDU by pressing and holding the CLR key
while powering up both the MFD and PFD.
9 If problem persist, replace GDU.
Cannot navigate through pages on
the MFD using the FMS knob
A button/knob/joystick does not
appear to function
Go to the GDU TEST page in configuration mode and verify button, knob, or
joystick is stuck.
9 If problem is verified, replace GDU.
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