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airplane symbol and a symbol legend will
appear in the lower left corner of the PFD
where the bearing pointer source annun-
c i a t o r s w o u l d o t h e r w i s e a p p e a r.
VOR/VORTAC tuned by NAV1 will by
cyan and VOR/VORTAC tuned by NAV2
will be dim white.
TEST – This momentary action "push to test"
switch, the inner dimming knob, provides
the IC-600 with a pilot-initiated command
to test the system functions. Depressing the
test button will command both a system test
of the display units and a radio altimeter
test (Figure 16-29). See also PFD TEST
MODE page 16-74.
DU DIM – The test knob has two concentric
rings, each of which controls the bright-
ness of an on-side display unit. Turning the
inner dimming knob counter-clockwise
dims the inboard display unit, and turning
the outer knob controls the brightness of
the outboard display unit.
DISPLAY UNIT REVERSION
A display unit reversion panel is located above
the PFDs on each side of the cockpit (Figure
16-30). The panel on the pilot’s side is for con-
trolling the display on DU2 and the panel on
the copilot’s side is for controlling the display
on DU3. The reversion selector knob on these
panels plus the push function of the knobs
allow the operators to switch the inboard DUs
(DU2 and DU3) to display either PFD, MFD,
or EICAS formats. The EICAS format will
normally be displayed on DU2 and a MFD for-
mat on DU3, but they can be changed if desired
or if necessary due to display unit failure.
With both reversion selector switches in
NORM, an EICAS format is displayed on DU2
and a MFD format is on DU3. Depressing the
selector knob on either reversion panel flip-
flops the DU2 and DU3 displays, reversing the
MFD and EICAS display locations.
L E A R J E T 4 5
P I L O T T R A I N I N G M A N U A L
16-42
FOR TRAINING PURPOSES ONLY
FlightSafety
international
Figure 16-30. Display Unit Reversion Panels
WARN
CAUT
WARN
CAUT
DU 2
NORM
DU 3
NORM
PFD
PFD
OFF
EICAS REV PUSH
EICAS REV PUSH