(2)
ADR portion (Ref. Fig. 009) This portion uses a 68000 microprocessor. Five resolvers can be used for the analog baro-correction and the AOA inputs. The ADR provides eight ARINC 429 Low-Speed output buses (buses 5 to 8 are reserved for engine control). A bus isolation is provided using in-line fuses in all ADR buses 5-8 reserved to the engine control. Each bus can drive twenty ARINC bus loads.
(3)
IR portion (Ref. Fig. 009) This portion uses a 80960 microprocessor. It provides a high-voltage power supply used by the gyros. The gyros/accel sensors block contains three accels and three gyros mounted along each axis. The IR provides four ARINC 429 High-Speed output buses. Each bus can drive twenty loads.
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ADIRS - General View
Figure 008
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ADIRU - Block Diagram
Figure 009
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CONTROL AND DISPLAY UNIT (CDU) - ADIRS (2FP) - REMOVAL/INSTALLATION
___________________________________________________________________ TASK 34-12-12-000-001 Removal of the ADIRS CDU (2FP)
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking caps
No specific circuit breaker(s) safety clip(s)
No specific access platform 1.6 m (5 ft. 3 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
34-12-12-991-001 Fig. 401
3. Job Set-up
__________ Subtask 34-12-12-010-050
A. Get Access
(1)
Put the access platform in position at the access door 822.
(2)
Open the access door 822.
(3)
On the battery power center 105 VU:
-loosen the two screws and remove the protective cover.
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B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
49VU NAV PROBES/ADIRU1/115VAC 4FP1 F06 105VU ADIRS/ADIRU1/28VDC 6FP1 C02
**ON A/C 001-049, 051-061, 101-105, 201-203,
121VU ADIRS/ADIRU/2/115VAC 4FP2 N07 121VU ADIRS/ADIRU/3/115VAC 4FP3 N06 121VU ADIRS/ADIRU/2/28VDC 6FP2 N05 121VU ADIRS/ADIRU/3/28VDC 6FP3 N04
R **ON A/C 062-099, 106-149, 151-199, 204-299, 301-399, 401-499,
121VU ADIRS/ADIRU/2/115VAC 4FP2 N06 121VU ADIRS/ADIRU/3/115VAC 4FP3 N05 121VU ADIRS/ADIRU/2/28VDC 6FP2 N04 121VU ADIRS/ADIRU/3/28VDC 6FP3 N03
**ON A/C ALL
122VU LIGHTING/TST/BOARD/SPLY 30LP X06 122VU LIGHTING/ANN LT SPLY/XFMR/BUS 2 27LP X05 122VU LIGHTING/ANN LT SPLY/XFMR/BUS 1 26LP X04 122VU LIGHTING/INSTL LT/OVHD/PNL 3LF Y03
4. Procedure
_________
(Ref. Fig. 401/TASK 34-12-12-991-001)
Subtask 34-12-12-020-050
A. Removal of the ADIRS CDU (2FP)
(1)
Hold the CDU (4) and loosen the four quarter turn fasteners (5).
(2)
Disengage the CDU (4) from its housing (1).
(3)
Disconnect the three electrical connectors (2).
(4)
Remove the CDU (4).
(5)
Put blanking caps on the disconnected electrical connectors (2) and (3).
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ADIRS - Control and Display Unit (CDU)
Figure 401/TASK 34-12-12-991-001
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1 1 Feb 01/98
1 1
1CES 1
TASK 34-12-12-400-001 Installation of the ADIRS CDU (2FP)
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
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