(8)
MAN (manual data entry) annunciator (amber) - Comes on when tas, mag hdg, or crosstrack offset entries are manually made. Remains on until all manual entries have been manually zeroed.
(9)
WRN (warn) annunciator (red) - Comes on when ONS failure is detected by integrity monitoring function. Flashes when present position, GMT, or date have not been entered; when tas and/or mag hdg inputs are invalid; when synchronization with received signals has not occurred within 3 minutes of ONS turn-on; when power is restored after a power interrupt that exceeded 7 seconds but was less than 7 minutes; and when ONS fails subassembly self test.
NOTE: When annunciators (4) thru (9) are extinguished, the system is functioning in the normal Omega navigation mode.
(10)
CLR (clear) pushbutton - Clears displayed data if not yet entered, and clears erroneous data entries.
(11)
HLD (hold) pushbutton - Permits position check and update, action/malfunction codes display, and editing of waypoint sequence.
(12)
ENT (enter) pushbutton - When pressed while on, enters displayed data into RPU computer.
577
34-59-01 Page 8 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Jan 20/82
EFFECTIVITY
L37924
5C8 Omega Navigation System Interface SchematicFeb 20/86 Figure 6 (Sheet 1) 34-59-01Page 8A/8B BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
EFFECTIVITY
GJ ALL EXCEPT B-2509
AND B-2510
K83229
5C8 Omega Navigation System Interface SchematicJun 20/88 Figure 6 (Sheet 2) 34-59-01Page 9/10 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
K83219
5C8 Omega Navigation System SchematicJun 20/88 Figure 7 34-59-01Page 11/12 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
K73895
593 OMEGA Navigation Relationships
Sep 20/81 Figure 8 34-59-01
Page 13
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
(13) Display selector switch Selects data for displays as follows:
SET TO LEFT DISPLAY RIGHT DISPLAY
GMT DAT Greenwich Date (day-month-year or month-
Mean Time year or month-day-year sequence,
depending upon program capability
and discrete selected)
TK GS Acft track angle Acft ground speed
HDG DA Acft heading Acft drift angle
XTK TKE Acft cross trk Acft trk angle error relative
distance from track to desired trk
angle
POS Lat of acft Long. of acft present position
present position
WPT Lat of waypoint Long. of waypoint selected by
selected by WPT sw WPT sw
DIS Great circle Time to go to next waypoint at
TIME distance between actual and speed or assumed gnd
acft present posn speed of 480 knots when true air
and next waypoint speed is less than 110 knots
WIND Wind direction Wind velocity
DTK STS Acft desired trk System status and
action/malfunction codes
MH TAS Magnetic heading True air speed
STA Transmitting station status
AUX When WPT switch is set as follows, corresponding displays and data entry functions are available.
WPT FUNCTION 0 Relaning in progress 1 GS/DA entry 2 Scratch memory 3 Frequencies being used:
11.3 kHz = 1
13.6 kHz = 2
10.2 kHz = 4
NOTE: The numeral display is additive, e.g., 1 indicates that only the 11.3 kHz frequencies are being used, 3 indicates that the 11.3 and 13.6 kHz frequencies are being used, and 7 indicates that all frequencies are being used.
4 Quality index 5 VLF station status 6 Grid navigation parameters 7 Reporting waypoint entry and display 8 Distance traveled 9 Display test, aircraft interface test
34-59-01 Sep 20/81 Page 14
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
(14) Mode switch - Selects ONS operating mode as follows:
SET TO MODE OFF Nonoperating; all power removed from ONS. A Automatic operation; with ONS tied to autopilot, acft automatically switches to
next trk leg at waypoints; permits manual override. M Manual operation; operator switches acft to next trk leg at waypoint. R Enables remote ranging operation; ONS otherwise funtions as it would with sw
set to M.
(15)
TK CHG (track change) pushbutton - Provides for entry of initial track leg and allows manual track leg switching.
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：737 AMM 飞机维护手册 导航 NAVIGATION 2(102)
