Page 2-22
G1000 Nav III Line Maintenance Manual
Rev. L
190-00352-00
2.2.1.3
GDU TEST Page
Figure 2-7. GDU TEST Page
The Test Page depicts a graphical layout of all buttons on the display in red. Each red graphical button turns
green when the corresponding button is pressed, indicating that the button operates correctly. The Test Page also
provides the following information regarding the display and associated systems.
DISPLAY
DUTY PWM 1:
Shows the display brightness duty pulse width modulation. Value range is between 0 and 9999
and corresponds to the display brightness value shown.
Not useful for troubleshooting.
CRNT PWM:
Shows percentage of current pulse-width-modulation to backlight bulbs. Value is between 0 and
10,000, showing the percentage of the maximum allowable current to the backlight.
Not useful for
troubleshooting.
TOGGLE PWM TO MANL?:
Allows the technician to manually adjust the display brightness.
TOGGLE CCFT OFF?
: Allows the technician to turn off the backlight current controller.
KEY
KEY PWM:
Shows the keypad pulse width modulation brightness value. Range is between 0 and 9999 and
corresponds to the keypad brightness value shown.
Not useful for troubleshooting.
TOGGLE KEY BKLT OFF?
: Allows the technician to toggle the keyboard backlight off.
REINIT PAGE INFO?:
Allows technician to re-initialize all information on the test page.
Содержание G1000 NAV III
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