Cessna SkyHawk SP 172S NAV III 2005 Pilot Operating Handbook page 252

SECTION 7
AIRPLANE AND SYSTEMS DESCRIPTION
CESSNA
MODEL 172S NAV III
To primary flight display
0770T1519
To transponder
To autopilot system (if installed)
To audio panel
To multi-function
display and MFD fan
To navigation #2 and
aft avionics cooling fan
To primary flight display
To deckskin
and
PFD
cooling fans
To air data computer
and attitude heading
reference system
To flight information
system (if installed)
To navigation #1 and
engine/airframe unit
To automatic direction finder
Installed)
To distance measure equipment
(If installed)
To air data computer
To attitude heading reference system
To and from standby
battery system
To navigation
#1,
engine/airframe
unit. and essential bus voltimeter
B
U Avionics
S Switch
2
B
U Avionics
S Switch
2
To alt master
switch
To stall warning,
autopilot waming,
ELT warning, main
bus voltmeter,
hourmeter.
starter relay,
stdby battery.
and main bus
sense.
. . Figure 7-7 (Sheet 2)
12VCAB PWR
(if installoc:l)
BC:--
To flashing beacon
LT
FUEL To aux fuel pump
PUMP
LANb
To landing light
LT
, . - - - - - - - - - 1
AVN1
ALT
FIELD
To feeder
III
B
1l
circuit
breakers
u.
III
sheet 1
A
e
0
ELECTRICAL SYSTEM
(Continued)
83973
I
7-46 U.S. 172SPHAUS-03