The coax cable input activity shows the status of the four coax cable inputs to the DU. A Y for yes and a N for no shows. A white highlight box shows around the specific coax cable input that currently transmits to the DU. From left to right the letters refer to these coaxial couplers:
-First letter for coax coupler 1 from DEU 1, GG A
-Second letter for coax coupler 2 from DEU 1, GG B
-Third letter for coax coupler 4 from DEU 2, GG A
-Fourth letter for coax coupler 3 from DEU 2, GG B.
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737-700 MAINTENANCE TRAINING MANUAL
CDS BITE PAGES - DU LOOP TEST
The bezel light sensor brightness value shows as a percentage of maximum value. The range is 0 to 100. BAD shows if the input is bad.
The unit brightness value shows as a percentage of maximum value. The range is 0 to 100. BAD shows if the input is bad. This value changes if you change the unit brightness with the brightness controls.
The WXR brightness value shows as a percentage of maximum value. For the left inboard, and right inboard, the range is 0 to 100. BAD shows if the input is bad. This value changes if you change the unit brightness with the brightness controls. For the left outboard, right outboard, and upper center display units, the value 0 shows.
For the lower center display, the WXR value will change as you rotate the the brightness control, even though we do not display WXR information on the this DU.
DEU 1 and 2 Loop test
On the following pages are examples of the DEU LOOP TEST for DEU 1 and 2.
-COAX 1 TO LT DISPLAYS & COAX 2 TO RT DISPLAYS
-COAX 2 TO LT DISPLAYS & COAX 1 TO RT DISPLAYS
Also included is a DEU, coax coupler and Display Unit interface drawing.
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SOUTHWEST AIRLINES PROPRIETARY(c) All rights reserved
SOUTHWEST AIRLINES.
737-700 MAINTENANCE TRAINING MANUAL
January 1, 2004
31-62
SOUTHWEST AIRLINES PROPRIETARY(c) All rights reserved
SOUTHWEST AIRLINES.
737-700 MAINTENANCE TRAINING MANUAL
A31-62-00-808.fm
January 1, 2004
31-62
SOUTHWEST AIRLINES PROPRIETARY(c) All rights reserved
SOUTHWEST AIRLINES.
737-700 MAINTENANCE TRAINING MANUAL
A31-62-00-808.fm
January 1, 2004
31-62
SOUTHWEST AIRLINES PROPRIETARY(c) All rights reserved
SOUTHWEST AIRLINES.
737-700 MAINTENANCE TRAINING MANUAL
A31-62-00-808.fm
CDS DEU 2 MAINT/BITE DU LOOP TEST MENU 1/ 1
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