Pioneer A-757 User Manual

TROUBLESHOOTING
Incorrect operations are often mistake
n
for
trouble
and
malfunctions.
If
you
think
that
there
is
something
wrong
with
this
component
check
the
points
below.
Sometimes
the
trouble
may
lie
in
another
component.
Investigate
the
other
components
and
electrical
appliances
being
used.
If
the
trouble
cannot
be
rectified
even
after
exercising
the
checks
listed
below,
ask
your
nearest
PIONEER
authorized
service
center
or
your
dealer to carry out repair work.
Symptom
4
Probable Cause
Remedy
No power supplied to unit
Power plug is disconnected from outlet.
The
component
power
plug
has
been
plugged
into
another
component
power
outlet
(e.g.
timer,
etc,),
but
power
to
that
unit
is
disconnected.
i
Insert plug securely in outlet.
Turn on power to the other component.
No sound
Connecting cords are disconnected from
terminals, or connected incorrectly.
Terminals, or connecting cords pin plugs are
dirty.
The INPUT SELECTOR or ADPT 1/TAPE 3
switch selected does not match the
component being played back.
Operation of other components is incorrect.
The SPEAKERS selector switch is set to
“OFF”. :
The PHONO EQ switch is OFF position
(When listening PHONO in A-757.)
Shorting bars are not inserted into the ADPT 2
terminals.
Connect securely.
Clean terminals and plugs.
Set switches correctly (PHONO, TUNER, CD,
LINE, DAT/TAPE 1, TAPE 2). Set the ADPT
1/TAPE 3 to OFF.
Consult
the
opeating
instructions
for
the
other
components.
Set the switch to A, B or A+B.
Set PHONO EQ switch to ON position.
Insert the shorting bars properly.
|
No sound from one speaker
Connecting cords or speaker cords are
disconnected on that side.
BALANCE contro! has been adjusted to one
side.
Connect securely.
Adjust BALANCE control to center position.
fe
an't record tapes
The position of the REC SELECTOR switch is
incorrect.
Connections are incorrect.
Operation of tape deck is incorrect.
Set switch correctly.
(See section RECORDING TAPES).
Reconnect cords properly.
Consult the operating instructions for the tape
deck,
Can't perform tape copying
The position of the REC SELECTOR switch is
incorrect.
Operation of tape decks is incorrect.
Set switch correctly
(See section COPYING TAPES).
Consult the operating instructions for the tape
decks.
POWER-CORD CAUTION
Handle the power cord by the piug. Do not pull out the plug by tugging
the cord and never touch the power cord when your hands are wet as
this could cause a short circuit or electric shock. Do not place the unit,
apiece of furniture, etc., on the power cord, or pinch the cord. Never
make a knot in the cord or tie it with other cords. The power cords
should be routed such that they are not likely to be stepped on. A
damaged power cord can cause fire or give you an electrical shock.
Check the power cord once in a while. When you find it damaged, ask
your nearest PIONEER authorized service center or your dealer for a
replacement.
10
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E

Pioneer A-757 Specifications

General

Input Sensitivity	150 mV (Line)
Speaker Load Impedance	4-16 Ohms
Frequency Response	5Hz - 100kHz (+0, -3dB)
Signal to Noise Ratio	110 dB (Line)
Dimensions	420 x 162 x 453 mm
Damping Factor	100 (8 ohms, 1kHz)
Output	Headphone