Master Switch; Power Switch - Cessna 172P Pilot's Operating Handbook And Flight Manual

SECTION
7
AIRPLANE &
SYSTEMS DESCR,IPTIONS
CESgNA
MODEL
T7¿P
ELECTRICAL SYSTEM
the
airplane
is
equippea
wittr a
p8-volt, direct-current electrical
CAUTION
Prior to turning
the mabter switch
on
or off,
starting
the
engine or
applying
an
external power source, the
avionios
power switch, labeled AVIONICS
POWER,
should
be
turned off
to prevent any harmful transient
voltage from
damaging the avionics equipment.
MASTER SWITCH
The master
switch is
a
split-rocker type switch
rabered
MASTER,
and
is
oN
in
the
up
position
and off in
the
doïn
position. The
right
harf of
the
7-24
30
May
1980