Sony TA-AX310 User manual
INTEGRATED
STEREO
AMPLIFIER
TA-AX310
OPERATING
INSTRUCTIONS
Before
operating
the
unit,
please
read
this
manual
thoro¬
ughly.
This
manual
should
be
retained
for
future
reference.
©
1984
by
Sony
Corporation
OWNER’S
RECORD
The
model
and
serial
numbers
are
located
at
the
rear.
Record
the
serial
number
in
the
space
provided
below.
Refer
to
these
numbers
whenever
you
call
upon
your
Sony
dealer
regarding
this
product.
Model
No.
TA-AX310
Serial
No.
_
WARNING
To
prevent
fire
or
shock
hazard,
do
not
expose
the
unit
to
rain
or
mois¬
ture.
A
A
/
•
\
RISK
OF
ELECTRIC
SHOCK
DO
NOT
OPEN
CAUTION
TO
REDUCE
THE
RISK
OF
ELECTRIC
SHOCK,
DO
NOT
REMOVE
COVE
(OR
BACK).
NO
USER-SERVICEABLE
PARTS
INSIDE.
REFER
SERVICING
TO
QUALIFIED
SERVICE
PERSONNEL.
A
This
symbol
Is
intended
to
alert
the
user
to
the
presence
of
uninsulated
“dangerous
voltage”
within
the
product’s
enclosure
that
may
be
of
sufficient
magnitude
to
constitute
a
risk
of
electric
shock
to
persons.
TABLE
OF
CONTENTS
Features.
2
Precautions.
3
Function
of
controls.
4
System
connections.
6
Connection
notes.
6
Speaker
connection.
7
AC
outlets.
7
To
listen
to
a
record,
a
CD,
a
tuner
program
or
an
auxiliary
source.
To
listen
to
a
taped
program.
Tape
recording
To
record.9
Trouble
checks.9
Specifications.10
FEATURES
The
TA-AX310
integrated
stereo
amplifier
provides
dynamic
sound.
The
block
diagram
of
the
amplifier
is
shown
on
its
attractive
front
display
and
enables
the
signal
flow
to
be
read
at
a
single
glance.
•
Power
output
of
32
+
32
watts
(40
Hz
-20
kHz,
0.08%
THD).
•
Independent
CD
inputs
for
connecting
a
CD
player
to
your
stereo
system.
•
Ability
to
drive
two
pairs
of
speaker
systems
either
in¬
dividually
or
simultaneously.
A
This
symbol
is
intended
to
alert
the
user
to
the
presence
of
important
operating
/
I
\
and
mainteance
(servicing)
instructions
in
/
I
\
the
literature
accompanying
the
appl-
L
_
*
_A
iance.
2
CD
CO
00
PRECAUTIONS
On
safety
•
Operate
the
unit
only
on
120
V
ac,
60
Hz
•
Should
any
liquid
or
solid
object
fall
into
the
cabinet,
unplug
the
unit
and
have
it
checked
by
qualified
person¬
nel
before
operating
it
any
further.
•
Unplug
the
unit
from
the
wall
outlet
if
it
is
not
to
be
us¬
ed
for
an
extended
period
of
time.
To
disconnect
the
cord,
pull
it
out
by
grasping
the
plug.
Never
pull
the
cord
itself.
On
installation
•
Do
not
install
the
unit
in
a
location
near
heat
sources
such
as
radiators
or
air
ducts,
or
in
a
place
subject
to
direct
sunlight,
excessive
dust,
mechanical
vibration
or
shock.
•
Good
air
circulation
is
essential
to
prevent
internal
heat
build-up
in
the
unit.
Place
the
unit
in
a
location
with
adequate
air
circulation.
Do
not
place
the
unit
on
a
soft
surface,
such
as
a
rug
that
would
block
the
ventilation
holes
on
the
bottom.
•
Do
not
place
anything
on
top
of
the
cabinet.
The
top
ventilation
holes
must
be
unobstructed
for
the
proper
operation
of
the
unit
and
to
prolong
the
life
of
its
components.
On
operation
•
Before
making
program
source
connections,
be
sure
to
turn
the
power
switch
off
and
unplug
the
unit.
•
When
the
unit
is
not
used,
turn
the
power
off,
to
con¬
serve
energy
and
to
extend
the
useful
life
of
your
unit.
On
cleaning
the
cabinet
Clean
the
cabinet,
panel
and
.controls
with
a
soft
cloth
lightly
moistened
with
mild
detergent
solution.
Do
not
use
any
type
of
abrasive
pad,
scouring
powder
or
sol¬
vent
such
as
alcohol
or
benzine.
On
repacking
Do
not
throw-away
the
carton
and
the
packing
material.
It
makes
an
ideal
container
to
transport
the
unit
in.
When
shipping
the
unit
for
repair
work
or
to
another
location,
repack
it
as
illustrated
on
the
carton
box.
For
the
customers
in
the
USA
For
detailed
safety
precautions,
see
the
leaflet
“IMPOR¬
TANT
SAFEGUARDS”
FUNCTION
OF
CONTROLS
Each
number
in
the
text
is
keyed
to
that
of
the
photo.
Front
panel
O
POWER
switch
Turns
the
operating
power
on
or
off.
0
Front
display
The
appropriate
indicator
lights
up
according
to
the
set¬
ting
of
each
control.
O
VOLUME
control'
Regulates
the
overall
sound
level.
Slide
towards
the
right
to
increase
the
sound
level.
O
LOUDNESS
switch
Normally
keep
the
switch
released
(n
OFF).
When
listening
to
program
sources
at
a
low
volume
setting,
depress
the
switch
(a
ON).
This
loudness
control
compensates
for
the
human
ear’s
decreased
response
to
very
low
frequency
sound
at
low
voume
levels,
and
provides
an
apparently
uniform
response.
0
MONITOR
TAPE
button
Press
this
button
to
listen
to
a
taped
program
con¬
nected
to
the
TAPE
RECORDER
REC
OUT
jacks.
The
TAPE
indicator
of
the
front
display
will
light
up.
Press
this
button
again
to
disengage
it.
0
FUNCTION
select
buttons
Press
one
of
these
buttons
to
select
a
desired
program
source
other
than
a
taped
program.
The
associated
in¬
dicator
of
the
pressed
buttons
will
light
up
on
the
display.
AUX
:
For
auxiliary
programs
(connected
to
AUX
inputs).
CD:
For
compact
disc
programs
(connected
to
CD
inputs).
TUNER
:
For
off-the-air
programs
(connected
to
TUNER
inputs)
PHONO:
For
record
programs
(connected
to
PHONO
inputs)
O
BASS
and
TREBLE
TONE
controls
These
controls
adjust
the
bass
and
treble
response.
Slide
towards
the
right
(+)
to
increase
the
response
and
to
the
left
(-)
to
decrease
the
response.
O
BALANCE
control
Governs
the
amount
of
sound
coming
from
each
paired
speaker
to
get
optimum
stereo
effect.
Normally,
keep
this
at
the
center
position.
O
HEADPHONES
jack
Accepts
any
low
impedance
stereo
headphones.
For
headphone
monitoring
only,
keep
both
SPEAKERS
select
buttons
A
and
B
released.
©
SPEAKERS
select
buttons
Select
speaker
system
A
or
B,
or
both.
4
Rear
panel
0
Ground
terminal
For
a
turntable
system
with
a
ground
wire,
be
sure
to
connect
it
to
this
terminal
to
prevent
hum.
If
hum
still
exists,
it
may
be
helpful
to
connect
the
ground
terminal
directly
to
earth
via
a
ground
rod.
©
PHONO
inputs
(phono
jack)
Accept
the
output
of
a
turntable
system
with
an
MM
(moving
magnet)-type
cartridge.
©
TUNER
inputs
(phono
jack)
Accept
the
output
of
a
tuner.
©
CD
(compact
disc)
inputs
(phono
jack)
Accept
the
output
of
a
compact
disc
player.
©
AUX
(auxiliary)
inputs
(phono
jack)
Accept
various
input
sources
such
as
a
tape
deck
(for
playback
only),
an
additional
tuner,
etc.
©
TAPE
RECORDER
inputs/outputs
(phono
jack)
The
TAPE
inputs
accept
the
outputs
of
a
tape
deck
for
playing
back
tapes.
The
REC
OUT
(outputs)
accept
the
inputs
of
a
tape
deck
for
tape
recording.
Note:
The
AUX,
CD,
TUNER
and
TAPE
RECORDER
TAPE
inputs
are
identical
in
sensitivity
and
input
impedance.
©
SPEAKER
terminals
For
connecting
a
pair
of
speaker
system
or
two
pairs
of
speaker
systems.
System
A
and
system
B
can
be
selected
by
means
of
the
front
panel
SPEAKERS
select
buttons.
©
AC
OUTLETS
These
are
used
to
power
other
audio
components
whose
power
consumption
is
less
than
the
wattage
in¬
dicated
on
the
ac
outlet.
SYSTEM
CONNECTIONS
CONNECTION
NOTES
•
The
power
cord
should
be
connected
last
of
all,
first
making
sure
that
the
POWER
switch
is
turned
off.
•
When
connecting
program
sources
or
tape
recorders,
note
that
the
red
jacks
of
the
amplifier
are
for
right-
channel
connections
and
the
white
jacks
for
left-
channel
connections.
•
The
cable
connectors
should
be
fully
inserted
into
the
jacks.
A
loose
connection
may
cause
hum
and
noise.
SPEAKER
CONNECTION
The
unit
has
provision
for
two
pairs
of
speaker
systems—
system
A
and
system
B—which
can
be
selected
individually
or
simultaneously
by
means
of
the
front
panel
SPEAKERS
select
buttons.
Note
that
the
speaker
systems
A
and
B
are
series-
connected.
Connect
the
second
speaker
system
to
the
SPEAKER
B
inputs.
No
sound
will
be
heard
if
only
one
of
the
speaker
systems
is
connected
and
the
SPEAKERS
select
but¬
tons
A
and
B
are
depressed.
Speaker
impedance
and
power
capacity
This
amplifier
is
designed
to
work
best
with
speakers
having
nominal
impedance
from
8
to
16
ohms,
and
rated
at
32
watts
minimum
RMS
per
channel
with
an
8-ohm
load
from
40
-
20,000
Hz.
Be
sure
not
to
use
speakers
with
impedance
less
than
8
ohms
and
to
use
adequate
power
handling
capabilities.
Speaker
cord
connection
"|
Strip
the
outer
covering
and
twist
the
wires.
Speaker
placement
Here
are
a
few
suggestions
on
basic
speaker
placement.
—
Place
each
speaker
with
its
back
3—5
cm
(1V«-2”)
from
a
hard
wall
in
a
similar
acoustic
environment.
—
Set
your
speaker
system
up
on
a
hard,
flat
floor
or
pedestals.
Carpets,
draperies
and
upholstered
fur¬
niture
will
miminize
the
multiple
reflections
of
high-
frequency
sound
which
reduce
the
stereo
effect.
—
Generally
we
recommend
that
the
speaker/listener
relationship
be
an
equilateral
triangle.
If
the
speaker
separation
is
too
wide,
face
the
speakers
a
little
towards
each
other.
V©
-Wall
1
-
“1
Approx.
15
mm
Twist
tightly
O
Keep
the
terminal
button
depressed
and
fully
insert
^
the
wires
into
the
slot,
and
then
release
the
button.
Pull
on
the
speaker
cord
lightly
to
see
if
the
connec¬
tion
is
secure.
—
Place
the
speakers
no
higher
than
your
ears
when
you
are
seated,
if
the
speakers
are
to
be
positioned
above
the
floor.
AC
OUTLETS
These
are
used
to
power
other
audio
components
whose
total
power
consumption
is
less
than
the
in¬
dicated
wattage.
The
SWITCHED
outlets
are
controlled
by
the
front
panel
POWER
switch.
The
UNSWITCHED
outlet
is
not
controlled
by
the
POWER
switch.
Do
not
connect
any
electrical
home
appliance
such
as
an
electric
iron,
fan,
TV
or
other
high-wattage
equip¬
ment
to
these
ac
outlets.
Generally
speaker
cords
are
coded
with
color,
or
mark,
indicating
the
©
©
polarities.
Remember
the
coding
and
prevent
faulty
connections.
Right
speaker:
to
R
SPEAKER
terminals
Left
speaker:
to
L
SPEAKER
terminals
©
code:
for
©
connection
©
code:
for
©
connection
7
TO
LISTEN
TO
A
RECORD,
A
CD,
A
TUNER
PROGRAM
OR
AN
AUXILIARY
SOURCE
1
2
6
3
4
1
Depress
the
POWER
switches
of
the
amplifier
and
connected
source
equipment
to
ON.
2
Select
the
speaker
system
used
with
the
SPEAKERS
select
buttons.
To
drive
speaker
system
A:
depress
A
button.
To
drive
speaker
system
B:
depress
B
button.
To
drive
both
speaker
systems:
depress
A
and
B
buttons.
For
headphone
listening
only:
keep
both
buttons
released.
3
If
the
TAPE
indicator
lights
up,
press
the
TAPE
but¬
ton
to
disengage
it.
4
Press
the
appropriate
function
select
button.
For
an
auxiliary
source
connected
to
the
AUX
jacks,
press
AUX.
For
a
CD
program,
press
CD.
For
a
tuner
program,
press
TUNER.
For
a
record
program,
press
PFIONO.
5
Start
the
program.
6
Adjust
the
volume
with
the
VOLUME
control.
TO
LISTEN
TO
A
TAPED
PROGRAM
12
5
3
l|]
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tlrrnrmr—ir-|rnl|
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i
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:
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©
—[_
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i-
__
7
,
fll
lS
4
Tape
deck
(for
playback)
1
Depress
the
POWER
switches
of
the
amplifier
and
the
tape
deck
to
ON.
2
Select
the
speaker
system
with
the
SPEAKERS
select
button.
3
Press
the
TAPE
button.
4
Start
playback.
5
Adjust
the
volume
with
the
VOLUME
control.
Use
the
BASS
and
TREBLE
tone
controls
according
to
the
room
acoustics.
Depress
the
LOUDNESS
switch
when
listening
to
the
program
source
at
a
low
volume.
Example
of
the
signal
flow:
When
listening
to
a
taped
program.
Use
the
BASS
and
TREBLE
TONE
controls
according
to
the
room
acoustics.
Depress
the
LOUDNESS
switch
when
listening
to
the
program
source
at
a
low
volume.
The
TAPE
button
has
priority
over
the
function
buttons
(PFIONO,
TUNER,
CD
and
AUX)
if
they
are
engaged
at
the
same
time.
Example
of
the
signal
flow:
When
listening
to
a
CD
program.
8
TAPE
RECORDING
TROUBLE
CHECKS
TO
RECORD
You
can
record
any
program
source
using
a
tape
recorder
connected
to
the
TAPE
RECORDER
REC
OUT
jacks.
1
3
2
I
\
t
1
Depress
the
POWER
switch
to
ON.
2
Select
the
program
to
be
recorded
with
the
function
select
button.
3
If
the
TAPE
indicator
lights
up,
'press
the
TAPE
button.
4
Start
the
program
and
set
the
tape
deck
in
recording
mode.
The
VOLUME
and
TONE
controls
and
the.LOUDNESS
switch
have
no
effect
on
recording.
Monitgring
of
a
3-head
tape
recorder
If
your
tape
deck
has
a
separate
record
and
playback
head,
you
can
monitor
the
recording
results
by
pressing
the
TAPE
button.
To
listen
to
the
program
source,
release
the
TAPE
button
and
press
the
appropriate
func¬
tion
select
button.
In
this
case,
the
recorder
should
be
connected
to
the
TAPE
inputs
and
REC
OUT
jacks
and
its
tape
monitor
switch
should
be
at
the
TAPE
position.
Should
any
problem
persist
after
you
have
made
these
checks,
consult
your
nearest
Sony
service
facility.
Before
going
through
the
check
list
below,
first
refer
back
to
the
connection
and
operating
procedures.
No
audio
•
Check
speaker
and
program
source
connections.
•
Check
the
settings
of
the
TAPE
and
FUNCTION
select
buttons.
Release
the
TAPE
button
when
not
listening
to
a
taped
program.
•
Check
the
setting
of
the
SPEAKERS
select
buttons.
•
Turn
up
the
volume.
No
audio
from
one
channel
or
unbalanced
left
and
right
volume
•
Adjust
the
BALANCE
control.
•
Check
the
speaker
and
input
connections
of
the
in¬
operative
channel.
Abrupt
loss
of
sound
from
one
or
both
of
the
speakers
*
•
Turn
off
the
amplifier
and
check
the
speaker
terminals
or
speaker
cord
for
a
short.
•
Reduce
the
volume
and
wait
a
few
minutes
to
see
if
the
power
is
turned
on
again.
Lack
of
bass
sound
or
obscure
instrument
position
•
Check
the
speaker
connection
for
proper
phasing.
Severe
hum
or
noise
•
Keep
the
connecting
cords
away
from
transformers
or
motors
and
at
least
3
meters
(10
feet)
from
TV
sets
and
fluorescent
lights.
•
If
the
TV
set
and
audio
components
are
too
close
together
do
not
use
both
TV
set
and
audio
components
at
the
same
time.
If
both
are
used
at
the
same
time,
separate
the
TV
set
from
the
audio
components.
•
Ground
the
turntable
system.
•
Make
secure
connections.
•
Wipe
the
plugs
and
jacks
with
a
cloth
lightly
dampen¬
ed
with
methanol.
•
This
symptom
may
be
caused
when
the
protection
circuits
activate.
9
SPECIFICATIONS
AUDIO
POWER
SPECIFICATIONS
POWER
OUTPUT
AND
TOTAL
HARMONIC
DISTORTION:
With
8
ohm
loads,
both
channels
driven,
from
40-20,000
Hz;
rated
32
watts
per
channel
minimum
RMS
power,
with
no
more
than
0.08%
total
harmonic
distor¬
tion
from
250
milliwatts
to
rated
output.
OTHER
SPECIFICATIONS
Amplifier
section
Power
bandwidth
(IHF)
20
Hz
30
kHz
Dynamic
headroom
1.2
dB
(78
IHF)
Harmonic
distortion
Less
than
0.08%
at
rated
output
Intermodulation
(IM)
distortion
i60
Hr
7
kHz
=
Less
than
0.08%
at
rated
output
Frequency
response
PHONO
:
RIAA
equalization
curve
±0.5
dB
TUNER
1
CD
!
AUX
>
15
Hz
70
kHz
±3.0
dB
TAPE
I
Residual
noise
Less
than
100
jW
(8
ohms,
network
A)
Damping
factor
36
(8
ohms,
1
kHz)
Inputs
Sensitivity
Impedance
Maximum
input
capability
(1
kHz)
S/N
(weighting
network,
input
level)
PHONO
2.0
mV
50
kilohms
120
mV
70
dB
74
dB
*
(A.
2.0
mV)
TUNER
CD
AUX
TAPE
150
mV
50
kilohms
—
98
dB
85
dB*
(A.
150
mV)
*
78
IHF
Outputs
REC
OUT
Voltage
150
mV
Impedance
4.7
k
ohms
SPEAKER
Accepts
speakers
of
8
16
ohms.
HEADPHONES
Accepts
low
impedance
head¬
phones.
Tone
controls
BASS
±8
dB
at
100
Hz
(turnover
freq.
300
Hz)
TREBLE
±7
dB
at
10
kHz
(turnover
freq.
3
kHz)
Loudness
(Att.
30
dB)
6
dB
at
100
Hz
10
General
System
Preamplifier
section
:
low-noise
1C
NF
type
equalizer
amplifier
Power
amplifier
section
:
quasi¬
complementary
SEPP
OTL
OCL
power
amplifier
with
all
stages
direct
coupled
Power
requirements
120
V
ac.
60
Hz
Power
consumption
75
W
AC
outlets
2
switched
total
100
watts
max.
1
unswitched
100
watts
max.
Dimensions
430
x
106
x
285
(w/h/d)
(17'/e
x
4‘/<
x
iii/
4
inches)
including
projecting
parts
and
controls
Weight
Approx.
4.8
kg
(10
lbs
9
oz)
net
Approx.
6.3
kg
(13
lbs
14
oz)
in
shipping
carton
Design
and
specifications
subject
to
change
without
notice.
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