Pfd - Magnetometer Calibration Alternate Procedure - Piper Malibu Meridian PA-46-500TP Airplane Maintenance Manual

(n) Verify the calibration by aligning the aircraft with consecutive 90° headings, starting with
360°. Use the same alignment procedure as before and view the digital heading display
on the pilot and copilot PFDs at each of these headings (360°, 90°, 180°, and 270°).
(o) The magnetometer calibration is now complete.

(3) PFD - Magnetometer Calibration Alternate Procedure:

This procedure is done using the Compass Rose and Engine Run. With the "Calibration" Tab
selected perform the Magnetometer (MAG) Calibration by pressing LSK L2, labeled "Perform
Mag Cal" and continue as follows:
(a) Perfor m nor mal engine star t and tur n on Avionics Master if needed for taxi
communications.
(b) Remain stationary and allow the pilot and copilot PFDs to align (approximately 3 minutes)
until the ADAHRS countdown timer expires and the Gyro Warm-up box is removed from
the PFD screen.
NOTE: The PFD countdown timer might automatically restart its count before the
(c) Allow the system 10 additional minutes in the aligned state to ensure complete stability.
(d) Taxi to the compass rose with a technician to act as a spotter to aid in the alignment.
(e) Enter the System Setup mode on the PFDs as follows:
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2
3
(f) Press the "Perform Mag Cal" LSK (L1).
(g) Align the aircraft with magnetic north on the compass rose with the assistant to achieve
+/- 1° accuracy.
(h) Follow the directions on the magnetometer calibration page and press "Calibrate Heading"
LSK (R4) and wait until "Done" is displayed.
(i) Align the aircraft to each of the remaining 11 consecutive 30° headings using the same
steps to achieve the 360° heading alignment and press "Calibrate Heading" LSK (R4) at
each of these points when satisfactory alignment is achieved.
(j) At the final alignment point (330°), remain stationary until "Done" is displayed. This could
take up to one minute as data from the 12 calibration points is loaded into the PFDs.
(k) When completed, this message appears:
"MAG CAL COMPLETE – YOU MUST CYCLE POWER ON THE PFD IN ORDER FOR
THE MAGNETOMETER CALIBRATION TO TAKE EFFECT"
CYCLE POWER BY PULLING THE FOLLOWING CIRCUIT BREAKERS:
NOTE: Wait 20 seconds before applying power.
5E1
PIPER AIRCRAFT, INC.
PA-46-500TP, MALIBU MERIDIAN
MAINTENANCE MANUAL
countdown expires. This is normal and does not indicate a problem with the PFD.
Apply power to all the sensors that interface with the PFD, including the Garmin
GNS-430 radios and S-TEC 1500 Autopilot. (Battery Master Switch "On" or External
Power applied and Radio Master Switch "On".)
The system will begin its normal start-up sequence. Simultaneously press and hold
the top left (L1) and third down from top left (L3) Line Select Keys (LSK) until the
countdown timer in the lower left corner of the display (adjacent to the (LSK) L4 Line
Select Key) indicates zero (0).
At the end of the displayed countdown clock, the System Set-up Page will appear.
MAIN BUS-"PILOT PFD" & "CO-PILOT PFD"
NON ESSENTIAL BUS-"PFD/MFD POWER CONVERTER"
AVIONICS 1 BUS - "PILOT PFD"
AVIONICS 2 BUS – "CO-PILOT PFD"
(PIR-PPS60217-1, Rev. A.)
34-20-00
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Apr 15/07