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Cessna SKYMASTER 337 Series User Manual

Cessna SKYMASTER 337 Series
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Cessna
illustrated
parts
catalog
SIDE
ADJUSTMENT
EXTENDER CABLE
AUDIO
SIDETONE
ADJUSTMENT
PROCEDURES
1.
Speaker
and
Headphone
Sidetone
can
only
be
adjusted
by
the
Sidetone
Potentiometers
(Speaker
Item
2
&
Headphone
Item
3)
mounted
inside
the
Audio
Control
Panel
Assy
(Item
1).
2. A
test
extender
Test Harness
Assy (Item
4)
is
available
through
the
Cessna
Service
Parts
Center
to
facilitate
the
service
technician
in
making
in-flight
or
on-the-ground sidetone
adjustments.
3.
The
Sidetone
Potentiometer
for
the
Speaker
(Item
2)
and
Headphone
(Item
3)
should
have
been
adjusted
during
assembly at
the
factory
to
the
maximum
clockwise
position
(Minimum
Resist-
ance
Value)
as
viewed
from
the
left
side
of
the
rear
of
the
Audio
Control
Panel
(Item
1).
4.
During
adjustment,
be
aware that
if
the
speaker
sidetone
level
is
set
too high,
it
can
cause
audio
feedback
(squeal)
when
transmitting.
5.
If
reduced
speaker
or
headphone
sidetone
is
desirable, rotate
the
appropriate
Potentiometer
(Speaker
Item
2
or
Headphone
Item
3)
counterclockwise
to
obtain
the
desired
listening
level.
6.
Speaker
or
Headphone
Sidetone
is
only
available
when
the
"AUTO"
switch
is
set
in
either
the
SPEAKER
or
PHONE
position.
Adjusting
the
appropriate
pot
as
previously
outlined
will
assure
the
desired
audio
setting
for
the
speaker
or
headphone
sidetone.
INSERTS
INTO
AUDIO
CONTROL
PANEL
DUST COVER
1
4
1.
0570442-200,0570442-201,0570442-3
or
0570442-4
AUDIO
CONTROL PANELS
2.
S2454-6 POTENTIOMETER
-
SIDETONE
SPEAKER
3.
S2454-5
POTENTIOMETER
-
SIDETONE
PHONE
4.
9870003-1
TEST
HARNESS
ASSEMBLY
-
EXTENDER
CABLE
337
SERIAL
33701922
&
ON
T337
SERIAL
33701922
&
ON
P337
SERIAL
P3370342
&
ON
Figure
4-5A.
1980
&
On
Potentiometer
Adjustment
Procedures
For
Audio
Control
Panels
Incorporating
Three
Transmitters
or
Dual ADF'
s
4-26

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Cessna SKYMASTER 337 Series Specifications

General IconGeneral
ManufacturerCessna
Crew1
Capacity5 passengers
Length9.07 m (29 ft 9 in)
Wingspan11.63 m (38 ft 2 in)
Height2.84 m (9 ft 4 in)
Power Output210 hp (157 kW) each
Maximum Speed322 km/h (200 mph, 174 kn)
Powerplant2 × Continental IO-360-C
Service Ceiling5, 791 m (19, 000 ft)

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