Thommen AD20 - 4 SECTION IV; 4.1 Installation; 4.1.1 General; 4.1.2 Unpacking and Inspecting

REVUE THOMMEN AG
CH-4437 Waldenburg
AD20 Standby Altimeter
Page 6 of 72
07-Sep-2009 Document No: AD-INSOP-800 Revision: 1.6
5 SECTION V ................................................................................................................................... 58
5.1 Trouble shooting..................................................................................................................... 58
5.2 Maintenance.............................................................................................................................59
5.3 Manual Maintenance Mode..................................................................................................... 60
5.3.1 Entering Manual Maintenance Mode ................................................................................ 60
5.3.2 Display 1: Battery Capacity Test (provision)..................................................................... 60
5.3.3 Display 2: High Resolution Altitude................................................................................... 61
5.3.4 Display 3: Lighting Curve Selection .................................................................................. 62
5.3.5 Display 4: Lighting Curve Adjustment............................................................................... 64
6 APPENDICES...............................................................................................................................67
6.1 APPENDIX I: Function Overview ........................................................................................... 67
6.2 APPENDIX II: Failure Codes................................................................................................... 70
6.3 APPENDIX III: Altimeter Calibration Table ...........................................................................72
LIST OF FIGURES
F
IG. 1-1 TYPE IDENTIFICATION DRAWING................................................................................................ 13
FIG. 1-2 EQUIPMENT SIDE VIEW ............................................................................................................. 16
FIG. 1-3 EQUIPMENT BACK VIEW AND EQUIPMENT CUT-OUT ................................................................... 17
FIG. 1-4 INTERFACE BLOCK DIAGRAM .................................................................................................... 18
FIG. 2-1 FRONT VIEW ............................................................................................................................. 20
FIG. 2-2 DIAL AND DISPLAY LIGHTING ..................................................................................................... 25
FIG. 2-3 DISPLAY OF ALL LCD SEGMENTS / WHITE LIGHTING ................................................................... 30
FIG. 2-4 DISPLAY OF BATTERY CHARGE / AMBER LIGHTING (OPTIONAL) ................................................... 30
FIG. 2-5 DISPLAY CONFIG ID AND A/C TYPE ........................................................................................... 31
FIG. 2-6 DISPLAY CURRENT ALTITUDE AND BARO SETTING ...................................................................... 31
FIG. 2-7 INDICATION OF NON-CRITICAL OR TOLERABLE FAILURES............................................................ 34
FIG. 2-8 INDICATION OF CRITICAL FAILURES ........................................................................................... 35
FIG. 4-1 HARNESS SHIELDING RF CAT. [YY] .......................................................................................... 43
FIG. 4-2 WIRING DIAGRAM (SHIELDED POWER WIRES) ............................................................................ 46
FIG. 4-3 WIRING DIAGRAM (UNSHIELDED POWER WIRES) ........................................................................ 47
FIG. 5-1 BATTERY TEST DISPLAY............................................................................................................ 61
FIG. 5-2 HIGH RESOLUTION ALTITUDE .................................................................................................... 61