Front Panel Facilities - Pioneer SX-950 Operating Instructions Manual

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FRONT PANEL FACILITIES
SPEAKER BUTTONS
Three sets of speaker terminals, A, B, and C, are provided
on the rear panel, and the required speaker systems can
be selected by depressing the SPEAKERS buttons as
follaws:
Bictea Set aad wa Speaker systems A operate
Boe d e Se teas Speaker systems B operate
C ..... 2... .. Speaker systems C operate
NOTES
1. When any two buitons (A+B. B+C, C+A) are depressed
simultaneously, the corresponding pairs of speaker
systems will come into operation. However, ti is not
possible io operate all three speaker systems at the
same lime, even though all the buttons are depressed.
. For private listening through headphones, return all
the SPEAKERS buttons to the OFF (undepressed)
posraen
PHONES OUTPUT JACK —.—..
Accepts stereo headphones.
POWER SWITCH eee
After turning this switch ON there is a delay of some 3
to 6 seconds, during which time the protection circuit
operates to eliminate unpleasant noise.
BASS CONTROL
Clockwise rotation gives stronger emphasis to the bass
range below the turnover frequency (which is selected by
the BASS TURNOVER switch), while counterclockwise
rotation reduces bass response.
BASS TURNOVER SWITCH
This selects the frequency below which the bass tone con-
tro] will begin to act. This "turnover" frequency can be
set at 400Hz or 200Hz, to match the characteristics of
the room, the program material, or your personal listening
preferences.
TONE SWITCH
In the OFF (up) position, this switch causes the ampli-
fier section to operate with a flat frequency response
regardless of the tone control setting.
TREBLE TURNOVER SWITCH-
This switch selects the frequency above which the treble
tone control will begin to act, This "turnover" frequency
can be set at 2,5kHz or SkHz, to match the characteristics
of the room,
the program
material, or your
personal
listening preferences.
TREBLE CONTROL .W..
Clockwise ro.
to
Bis A
on gives stronger emphasis to the high
range
above the turnover
frequency
(selected
by the
TREBLE TURNOVER switch), while counterclockwise
rotation reduces high-range response,
eer renee)
FM TUNING METER tn
With the SIGNAL meter needle deflected to the right,
make fine adjustment by centering the FM TUNING
meter needie (indicating optimum reception).
For AM and FM station tuning.
AM tuning: Tune for maximum deflection
SIGNAL meter needle to the right.
Both the SIGNAL and FM TUNING meters
(see FM TUNING METER)
SPEAKER SYSTEM INDICATOR
_FM STEREO INDICATOR
of the
FM tuning:
work together
Mewes y
=
LOW CUT FILTER SWITCH.—_____--------
When low-pitched rumble (from turntable motor or other
source) is obstrusive, set this switch to the 30Hz position
to provide 6dB/octave attenuation at frequencies he
30Hz. If no interference is experienced,
position.
set in the ugg
HIGH CUT FILTER SWITCH
When high frequency scratch noise (from worn records
or other source) is unpleasant, set this switch to the 6KHz
position to provide 6dB/octave attenuation at frequencies
above 6kHz. If there is no interference, set, in the up
position.
MPX NOISE FILTER BUT JON
Comparatively high frequency noise, incurred when fF
ceiving weak FM siereo signals, can be eliminated by
depressing this button to ON. In this case however, thet
will be some loss of stereo separation.