True Airspeed .............................................................................................................................................. 3-21

Airspeed Switch Test ............................................................................................................................... 3-22

Engine Pressure Ratio (EPR) ................................................................................................................. 3-23

3.15

Testing Aircraft Systems or UUT ....................................................................................................... 3-24

3.15.1 Go to Ground and Shut-Down ............................................................................................ 3-24

3.16

Options ........................................................................................................................................................... 3-25

SCPI IEEE 488 Option ............................................................................................................................... 3-25

Altimeter Encoder Option ..................................................................................................................... 3-25

ARINC 429 Option ..................................................................................................................................... 3-25

3.17

SETUP and CONFIGuration ................................................................................................................... 3-26

3.18

Quick Reference ......................................................................................................................................... 3-26

4 MAINTENANCE

4.1

Introduction ................................................................................................................................................. 4-1

4.2

Materials ........................................................................................................................................................ 4-2

4.3

Maintenance Tasks .................................................................................................................................. 4-3

4.4

Routine Maintenance .............................................................................................................................. 4-4

5 TESTING AND FAULT FINDING

5.1

Introduction ................................................................................................................................................. 5-1

5.2

Standard Serviceability Test ............................................................................................................... 5-2

5.3

Self-test Errors ............................................................................................................................................ 5-4

5.4

Venting after Over-pressure ............................................................................................................... 5-4

5.5

Fault Diagnosis .......................................................................................................................................... 5-5

5.6

Further Testing ........................................................................................................................................... 5-8

5.7

Testing an Option Facility ..................................................................................................................... 5-11

Testing the IEEE 488 Facility ................................................................................................................ 5-11

Configuring and Enabling the IEEE 488 Facility ......................................................................... 5-11

Programming a Test of the IEEE 488 Facility .............................................................................. 5-12

Connection of the IEEE 488 Facility ................................................................................................. 5-13

Testing the Altimeter Encoder Option ............................................................................................. 5-14

Configuring and Enabling the Altimeter Encoder Option ...................................................... 5-14

Optional cable (AAU-32) ......................................................................................................................... 5-15

Testing the ARINC 429 Option ............................................................................................................ 5-16

Configuring and Enabling the ARINC 429 Option ..................................................................... 5-16

5.8

Fault Finding ................................................................................................................................................ 5-17

5.8.1

5.8.2

6 REFERENCE and SPECIFICATION

6.1

Introduction ................................................................................................................................................. 6-1

6.2

Main Pressure Display ............................................................................................................................ 6-1

K114 Issue No. 9

Table of Contents (contd)

Test Environment and Preliminary Operations .......................................................... 5-8

Pressure Leak Check ............................................................................................................... 5-8

Vacuum Leak Check ................................................................................................................ 5-9

Controller Stability .................................................................................................................... 5-10

Error Messages ........................................................................................................................... 5-17

Warning Messages ................................................................................................................... 5-18

F1 - F4 ............................................................................................................................................. 6-1

ALT Ps .............................................................................................................................................. 6-2

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Table of Contents