Honeywell Bendix/King Silver Crown Plus Pilot's Manual page 58

Silver Crown Plus Pilot's Guide
lighted displays that may be in the
cockpit. The display is adjusted in the
test (TST) mode.
To manually adjust the display
brightness, perform the following
operations:
1. Turn the Function Selector Knob
to "TST".
2. Turn the BRT knob clockwise to
increase the display brightness,
or counterclockwise to decrease
the display brightness.
The eight carets below the
alphanumeric display characters
indicate the brightness setting
(relative to the photocell reading).
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Maximum brightness is indicated by
all eight carets being illuminated.
Minimum brightness is indicated by no
carets being illuminated. The factory
default setting is represented by four
carets being illuminated. Pressing the
IDT button will return the brightness to
the default factory value.
3. Turn the Function Selector Knob
from TST to store the display
brightness settings.
NOTE: If power is removed from the
KT 73 while still in the test mode, the
brightness setting will be lost and the
unit will revert to the last known
setting.