Piper Malibu Meridian PA-46-500TP Airplane Maintenance Manual page 1010

Trouble
NAV Interface Data Page shows
valid data is not being Received
GPS Interface Data Pages show
valid data is not being Received
Cross Side Input Interface Data
Page shows valid data is not
being Received
Cross Side Output Interface
Data Page shows valid data is
not being Transmitted
NAV/GPS Output Interface
Data Page shows valid data is
not being transmitted
Analog Interface Data Page
shows valid data is not being
Received or Transmitted
Discrete Interface Data Page
shows valid data is not being
Received or Transmitted
34-20-00
PAGE 12
Apr 15/07
PIPER AIRCRAFT, INC.
PA-46-500TP, MALIBU MERIDIAN
MAINTENANCE MANUAL
CHART 3 (Sheet 3 of 3)
TROUBLESHOOTING EHSI (i.e. - ND)
Cause
ARINC In A and B Bus 2 lines
are not connected or are wired
incorrectly
Failed ND
Failed Nav radio
ARINC In A and B Bus 4A and/or
4B lines are not connected or are
wired incorrectly
Failed ND
Failed GPS Receiver
ARINC In A and B Bus 3 lines
are not connected or are wired
incorrectly
Failed ND
Failed cross-side ND
ARINC Out A and B Bus 2 lines
are not connected or are
wired incorrectly
Failed ND
ARINC Out A and B Bus 1 lines
are not connected or are
wired incorrectly
Failed ND
Failed ND
Failed Autopilot Input
Failed DME Input
Failed Audio Panel Input
Failed Rad Alt Input
Failed ADF Input
Failed Autopilot outputs
Failed ND
Failed Autopilot Input
Failed DME Input
Failed Rad Alt Input
Failed DAU output
Failed Autopilot output
Remedy
Check wiring
Replace ND
Replace Nav radio
Check wiring
Replace ND
Replace GPS Receiver
Check wiring
Replace ND
Test cross-side ND
Check wiring
Replace ND
Check wiring
Replace ND
Replace ND
Perform Autopilot Test
Perform DME Test
Perform Audio Panel Test
Perform Rad Alt Test
Perform ADF Test
Check ND inputs
Replace ND
Perform Autopilot Test
Perform DME Test
Perform Rad Alt Test
Check GPS inputs
Check Nav inputs
5D6