Sony TA-F70 User Manual

FRONT PANEL FACILITIES
This section describes the operation and function of each facility
on the front panel of the unit.
SIGNAL PATH switches @
PEAK POWER LEVEL indicators @4
For clarity, these are grouped into four functionally related sec-
tions.
Each number in the photo is keyed to the descriptive text.
7. ATTENUATOR Volume Control
Qvwontor Switches
OQ runcrion Switches
HEADPHONES Jack
SPEAKERS Selector
TONE Controls ©
BALANCE Control
TAPE COPY Selector
GENERAL CONTROL SECTION
@ POWER Switch
Turns the operating power on or off. The PEAK POWER LEVEL in-
dicators will light when the amplifier is turned on.
@ PEAK POWER LEVEL indicators
These two rows of LED indicators, calibrated in rms watts with 0 dB
equal to 10 watts, indicate the power output of each channel of the
amplifier over the range of 0.01 to 130 watts into an 8-ohm load with
accurate reading of the program peaks. When connecting
speakers with other than 8-ohm-impedance loads, indicator
readings do not show the actual power output. For a 16-ohm
speaker, multiply the indicator reading by */z.
@ When the POWER switch is turned on, the far left LED indicator
of each channel serves as a pilot light, even without a signal pre-
sent.
© SIGNAL PATH Switches
When the DIRECT switch is depressed, the bass and treble tone
control circuits are completely disconnected from the signal path
and an absolutely flat frequency response®* is obtained, regardless
of the BASS and TREBLE contro! settings.
When the TONE switch is depressed, the BASS and TREBLE con-
trols work normally.
The light corresponding to the depressed switch will then come on.
* The response is still subject to the action of the LOW FILTER switch, and this must of
course be in its OFF position for a flat response.
10
HEAD AMP Selector
PHONO Input Selector
LOW FILTER Switch
viove Selector
@ ATTENUATOR Volume Control
This
continuously
variable
attenuator
controls
the
overall
sound
level.
Note
that
“0”
indication
(the
fully
clockwise
position)
means
that
the
volume
control
provides
zero
attenuation
(full
gain
amplifica-
tion),
and
that
‘“‘co”
indication
(the
fully
counterclockwise
position)
means
that
the
volume
control
provides
maximum
attenuation
(no
output).
Adjust
the
volume
to
the
preferred
level
(the
PEAK
POWER
LEVEL
indicators
are
useful
here).
To
prevent
inadvertent
speaker
damage,
lower
the
volume
each
time
you
turn
on or
shut
down
the
system.
© SPEAKERS Selector
Selects speaker system A or B.
A: To drive speaker system A.
OFF:
To
cut
off
the
speaker
sound
or
to
monitor
through
the
headphones.
B: To drive speaker system B.
@ BALANCE Control
Governs
the
amount
of
sound
coming
from
each
paired
speaker
to
get
optimum
stereo
effect.
When
you
turn
the
BALANCE
control
to
the
right,
the
left
channel
-
volume
is
decreased,
and
vice
versa.
For
normal
operation,
set
the
BALANCE
control
to
the
center
posi-
tion.

Sony TA-F70 Specifications

General

Brand	Sony
Model	TA-F70
Category	Amplifier
Language	English