CIRRUS AIRPLANE MAINTENANCE MANUAL MODELS SR22 AND SR22T
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CENTRAL COMPUTERS
1. DESCRIPTION
This section describes those components used for computing data from a number of different sources
without a preponderance of functions in any one system. This includes the GIA 63W integrated avionics
unit.
The airplane is equipped with two GIA 63W integrated avionics units located behind the PFD and MFD,
respectively. The GIA 63W functions as the main communications hub for the Perspective Avionics system,
linking all system components with the PFD and MFD. The main processor interfaces with all of the Per-
spective Avionics components and performs calculations for the GFC 700 autopilot. The integrated avion-
ics units are not paired together and do not communicate with each other directly.
Each GIA 63W integrated avionics unit contains the following:
• A 15 channel WAAS certified GPS receiver.
• A VHF COM transceiver that provides tuning from 118.00 to 136.975 MHz in 25 kHz or 8.33 kHz spac-
ing for 760 or 3040 channel configuration respectively.
• A VOR/ILS localizer receiver that provides tuning from 108.00 to 117.95 MHz in 50 kHz increments.
• An ILS glideslope receiver that provides tuning from 328.6 to 335.4 MHz as paired with the frequency
tuned on the VOR/ILS localizer receiver.
• A flight director system if optional automatic flight control system is installed.
• System Integration microprocessors.
28 VDC for GIA 63W integrated avionics unit 1 operation is supplied through the 7.5-amp COM 1 and 5-
amp GPS NAV GIA 1 circuit breakers on Essential Bus 1. 28 VDC for GIA 63W integrated avionics unit 2
operation is supplied through the 7.5-amp COM 2 and 5-amp GPS NAV GIA 2 circuit breakers on Main Bus
2.
The GIA 63W integrated avionics unit is integral to the Perspective Integrated Avionics system. For an
overview of the Perspective Avionics system, refer to Chapter 42, Integrated Modular Avionics. (Refer to
42-00)
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CIRRUS AIRPLANE MAINTENANCE MANUAL MODELS SR22 AND SR22T
15 Jun 2010
2. TROUBLESHOOTING
Trouble Probable Cause Remedy
NAV1 or COM 1 not receiving
valid data.
Software or configuration error. Check PFD Alert Window for GIA1
configuration, software, or failed
data path error messages. Correct
any errors before proceeding.
GIA 63 integrated avionics unit is
offline.
Swap GIA1 and GIA2 and recon-
figure for new positions to verify
location of problem. If problem fol-
lows GIA1, replace GIA1.
Check Ethernet interconnect from
GIA1 to PFD and unit connector
pins for faults.
If problem persists, replace PFD.
NAV2 or COM 2 not receiving
valid data.
Software or configuration error. Check PFD Alert Window for GIA2
configuration, software, or failed
data path error messages. Correct
any errors before proceeding.
GIA 63 integrated avionics unit is
offline.
Swap GIA1 and GIA2 and recon-
figure for new positions to verify
location of problem. If problem fol-
lows GIA2, replace GIA2.
Check Ethernet interconnect from
GIA2 to MFD and unit connector
pins for faults.
If problem persists, replace MFD.
CIRRUS AIRPLANE MAINTENANCE MANUAL MODELS SR22 AND SR22T
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GPS INTEG or Time not receiving
valid data.
Software configuration problem. Check PFD Alert Window for
GIA1/2 configuration, software or
failed data path error messages.
Correct any errors before pro-
ceeding.
External interference from nearby
objects.
Check for possible external inter-
ference to the GPS receivers.
1. Verify the aircraft is located
where the GPS antennas have a
clear view of the sky.
2. Ensure that a cell phone or a
device using cell phone technol-
ogy is not turned on (even in a
monitoring state) in the cabin.
3. Turn to the MFD AUX – GPS
STATUS page and check the GPS
strength bars on both GPS receiv-
ers. If the signal strength levels
are erratic, disappear and reap-
pear rapidly, or switch between a
solid and hollow bar frequently
there is an external device interfer-
ing with the GPS receivers. Turn
off any devices that radiate a sig-
nal in the local area or move the
aircraft to another location to
remove the interference.
4. Verify the aircraft is not parked
in close proximity to a hanger with
the doors open and equipped with
a GPS repeater.
GIA 63 integrated avionics unit is
offline.
Verify the GIA’s are online by
checking for a green checkmark
next to the GIA on the MFD Aux –
System Status page.
If a GIA is not online (a Red-X will
be present instead of a green
check mark), check for power
input faults.
Refer to the GIA GPS Trouble-
shooting Section for additional
actions.
Trouble Probable Cause Remedy
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Serials w/ Perspective Avionics
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CIRRUS AIRPLANE MAINTENANCE MANUAL MODELS SR22 AND SR22T
19 Sep 2017
3. MAINTENANCE PRACTICES
A. GIA 63W Integrated Avionics Unit - Serials w/ Perspective Avionics (See Figure 31-401)
(1) Removal - GIA 63W Integrated Avionics Unit 1
(a) Set BAT 1, BAT 2, and AVIONICS switches to OFF positions.
(b) Pull COM 1 and GPS 1 / NAV 1 circuit breakers.
(c) Remove PFD. (Refer to 31-60)
(d) Loosen screw securing handle-lock mechanism to integrated avionics unit.
(e) Lift handle-lock mechanism to disengage integrated avionics unit from connectors.
(f) Remove integrated avionics unit from mounting rack.
(2) Installation - GIA 63W Integrated Avionics Unit 1
(a) Position integrated avionics unit to mounting rack, ensuring handle-lock mechanism
engages slot on side of rack.
(b) Using handle-lock mechanism, gently push integrated avionics unit into mounting rack to
engage connectors.
(c) Position handle-lock mechanism to integrated avionics unit and secure with screw.
(d) Install PFD. (Refer to 31-60)
(e) Reset COM 1 and GPS 1 / NAV 1 circuit breakers.
(f) If GIA 63W units have been installed in opposite locations, perform Functional Test - GIA
63W Location Reconfiguration. (Refer to 31-40)
(g) If GIA 63W has been replaced with a new or different unit, or original unit has been
repaired, perform Adjustment/Test - Component Software and Configuration Loading.
(Refer to 42-00)
(3) Removal - GIA 63W Integrated Avionics Unit 2
(a) Pull COM 2 and GPS 2 / NAV 2 circuit breakers.
(b) Remove MFD. (Refer to 31-60)
(c) Loosen screw securing handle-lock mechanism to integrated avionics unit.
(d) Lift handle-lock mechanism to disengage integrated avionics unit from connectors.
(e) Remove integrated avionics unit from mounting rack.
(4) Installation - GIA 63W Integrated Avionics Unit 2
(a) Position integrated avionics unit to mounting rack, ensuring handle-lock mechanism
engages slot on side of rack.
(b) Using handle-lock mechanism, gently push integrated avionics unit into mounting rack to
engage connectors.
(c) Position handle-lock mechanism to integrated avionics unit and secure with screw.
(d) Install MFD. (Refer to 31-60)
(e) Reset COM 2 and GPS 2 / NAV 2 circuit breakers.
(f) If GIA 63W units have been installed in opposite locations, perform Functional Test - GIA
63W Location Reconfiguration. (Refer to 31-40)
(g) If GIA 63W has been replaced with a new or different unit, or original unit has been
repaired, perform Adjustment/Test - Component Software and Configuration Loading.
(Refer to 42-00)
(5) Adjustment/Test - GIA 63W Location Reconfiguration
(a) Connect 28 ±1 VDC external power to external power receptacle.
(b) Pull STARTER and FUEL PUMP circuit breakers.
CAUTION: Failure to remove database cards may result in cards becoming corrupted.
(c) Remove SD cards from top and bottom slots of MFD and PFD.
(d) Insert Cirrus Perspective software loader card into top slot of PFD.
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(e) Perform GIA 63W Reconfiguration according to Cirrus Perspective Line Maintenance
Manual.
(f) Remove Cirrus Perspective software loader card from PFD.
(g) Insert SD cards into top and bottom slots of MFD and PFD.
(h) Reset STARTER RELAY and FUEL PUMP RELAY circuit breakers.
(i) Disconnect 28 ±1 VDC external power from external power receptacle.
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CIRRUS AIRPLANE MAINTENANCE MANUAL MODELS SR22 AND SR22T
19 Sep 2017
Figure 31-401
GIA 63W Integrated Avionics Unit - Serials w/ Perspective Avionics
Serials 22-3026 thru 22-3729,
22T-0001 thru 22T-0075.
CONSOLE
(REF)
3
3
1
1
2
2
4
3
SR22_MM31_2729
LEGEND
1. GIA 63 Integrated
Avionics unit
2. Rack
3. Screw
4. Washer
/
