Embraer EMB145 Operation Manual page 2600

NAVIGATION AND
COMMUNICATION
3
4
5
MODE
H
STBY
6
G
RWY
S
7
G/S
FAULT
8
COMBINER
1 - BRIGHTNESS CONTROL KNOB
− Press the knob in to select MANUAL brightness mode.
− Rotating the knob clockwise increases display intensity.
Rotating counterclockwise decreases display intensity. In this
mode the intensity remains constant at the level selected by
the pilot.
− Pull the knob out to select AUTOMATIC brightness mode.
− The pilot adjusts display to desired brightness level as
described above and OHU automatically changes it to
maintain a constant contrast ratio.
2 - RELEASE LEVER
− Press the Release Lever to unstow Combiner.
3 - AMBIENT LIGHT SENSOR
− Monitors the external lighting conditions to the Automatic
Brightness Control.
Page
2-18-75 16
AIRPLANE
OPERATIONS
MANUAL
PRI
IMC A
III
L 10000'
−3.00
CLR BRT DIM
9 10
HGS CONTROL PANEL (HCP)
Code
01
2
1 2 3
4 5 6
7 8 9
ENTER
0
TEST
11
EM145AOM182052A.DGN
REVISION 39
1
12