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Page 5-90 G1000 System Maintenance Manual
Rev. A 190-00903-00
'DISCRETE' Window:
The ‘Discrete' Window displays the current configuration of discrete inputs into the display.
These settings are loaded with the G1000 Loader Card and must not be changed. The input box
is green if it is receiving the input, black if no input is expected, or red for a missing input. If the
active column does not match the set column, load PFD/MFD configuration files. These settings
are loaded with the G1000 Loader Card and must not be changed.
5.1.8.9 GDU Test Page
The GDU Test Page (Figure 5-14) shows a graphical layout of all display buttons in red. Each
red button turns green when the button is pressed indicating correct operation of the button.
Figure 5-14. GDU Test Page
GDU Test Page Window Descriptions
'DISPLAY-NEC®' Window:
a. DUTY PWM 1―Displays 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.
b. CRNT PWM―Displays 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.
c. TOGGLE PWM TO MANL?― Allows the technician to manually adjust the display
brightness.
d. TOGGLE CCFT OFF?― Allows the technician to turn off the backlight current controller.
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