Piper Malibu Meridian PA-46-500TP Airplane Maintenance Manual page 1005

Trouble
Configuration discrete parity
status on Configuration Data
page is indicated as FAIL.
Installation location on
Configuration Data page incorrect.
ADAHRS initialization screen is
not removed from the display
after 3 minutes have elapsed
since ADAHRS power on.
Rad Alt indication and/or
decision height annunciation
are not displayed correctly.
Localizer/Glideslope and/or
Backcourse/Localizer sensing
indications not displayed correctly.
Marker beacon indications
not displayed correctly.
Flight director bars not
displayed correctly.
Full Field Red, Green, Blue,
Black, and White pages are
not displayed correctly.
ND Interface Data page shows
valid data is not being transmitted.
ND Interface Data page shows
valid data is not being received.
5D1
PIPER AIRCRAFT, INC.
PA-46-500TP, MALIBU MERIDIAN
MAINTENANCE MANUAL
CHART 2 (Sheet 2 of 3)
TROUBLESHOOTING EADI (i.e. - PFD)
Cause
Parity input (Configuration
Discrete 7) not wired correctly.
Failed PFD.
Configuration discretes 0 and 1
not wired correctly.
Failed PFD.
ADAHRS not completing
initialization.
Failed Radar Altimeter.
Failed PFD.
Failed VOR radio.
Failed PFD.
Failed marker beacon system.
Failed PFD.
Failed Autopilot system.
FD/AP switch
not functional/wired correctly.
Failed PFD.
Failed PFD.
Failed PFD.
RS422 Receive A and B lines
are not connected or are wired
incorrectly.
Failed ND.
Remedy
Check configuration
discrete setting.
Check wiring.
Replace PFD.
Check configuration
discrete setting.
Check wiring.
Replace PFD.
Perform ADAHRS test.
Perform Rad Alt test.
Replace PFD.
Perform VOR radio test.
Replace PFD.
Perform marker beacon
system test.
Replace PFD.
Perform Autopilot system
test.
Check FD/AP switch and
wiring.
Replace PFD.
Replace PFD.
Replace PFD.
Check wiring.
Replace ND.
34-20-00
Apr 15/07
PAGE 7