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Extracted text from pioneer sx 9000 service manual (Ocr-read)
Page 1
FEATURES
A MULTI-PURPOSE, EASY-TO.USE DESIGN
The SX-9000 was designed to give you a high degree of versatility
in operation. You can, for example, use two microphones, two tape
decks, two headsets with the SX 9000. All controls are rationallv
placed for easy use. The circuitry is qrlite advanced, on a par with
professional designs.
CLEAN-LINED, CONTEMPORARY APPEARANCE
The SX-9000 looks good, too. The front incorporates a folding panel
that adds to its distinctive design. When in operation, the smoked
glass dial window lights up with subdued illumination. and the source
also lights up for quick identification.
HIGH PERFORMANCE TUNER
The SX-9000 employs the latest circuitry, including FET and lC's.
The resu lt is a professional receiver of exceptional sensitivity and
stab i I ity.
PRE-SET TONE COLORS
In addition to the normal bass and treble controls, there is a
4-position tone color selector knob. This provides quick switching
from "flat" to "soft", "bass" or "vivid". These cttaracteristics are
svmbolized in an illuminated window in the dial face.
TAPE-TO-TAPE MON ITOR I NG
Two buttons on the front panel allow easy, one-touch monitoring of
tapes "A" or "8" when you use the SX 9000 to copy directly from
one tape to another.
FOOLPROOF MICROPHONE USE
When either microphone knob is set to OFF, the unit operates in
parallel to provide monophonic signals for both speakers without
having to set the mode switch.
REVERBERATION EFFECT
Also included is a reverberation effect knob. The degree of "echo" is
easily read in the "Reverberation" window in the dial face"
SPECIAL "OVERLOAD PROTECTION''
You can play up to three different pairs of speaker systems through
the SX-9000 in combinations A, B, C, A+8, A+C, B+C. lf all three
are accidentally turned on, however, the "Overload Protection" goes
into action and the speakers are automatically shut off.
EARPHONE VERSATILITY
Because the SX-9000 has two "earphones" output jacks, two people
may I isten simu ltaneously with earphones without having to go
through an accessory junction box.
Page 2
I TJTONEER
LINE VOLTAGE SELECTION AND FUSE
SWITCHING LINE VOLTAGE SETTING AND FUSE
To remove the fuse, turn the fuse cap located on the line
voltage selector switch in the direction indicated by the
arrow. Then remove the fuse plug from the unit. Put the
fuse plug back so that the proper line voltage marking can
be seen through the cut on the edge of the plug. Whenever
the position of the selector switch is changed, check the
rating of the fuse. A 1.5-ampere fuse is to be used foreither
22OY or 240V operation and a S-ampere fuse for 110V,
120V or 130V operation. If the rating of the fuse is correct,
replace cap.
FUSE REPLACEMENT
If the fuse blows, remove the fuse cap and replace the fuse
with a new one.
STEREO SYSTEM
The SX-9000 is general-purpose stereo amplifier. Connect it
to the speaker systems (two to six), turntable, tape
recorder, etc., which are separately available.
INSTALLATION
When installing your stereo
points.
system, check the following
o The place should be well-ventilated, and free from
dampness and dust.
o The units should not be exposed to direct sunlight.
o The units should not be placed near radiators or other
heating units.
o The place should be substantial and roomy enough for the
installation, when installing the unit on a shelf.
A WORD ABOUT ROOM ACOUSTICS
The quality of reproduced sound varies according to the
size and shape of the room, the materials of walls, floor
and ceiling and the amount and arrangement of fumiture.
Too harsh or "bright" a sound usually results from too
many hard reflecting surfaces, and/or too low a ceiling.
This condition is improved by having ample carpet area or
covering the wall (especially that facing the speakers) with
a thick curtain.
On the other hand, too many absorbing surfaces will tend
to "soak up" the sound, resulting in a certain "deadness".
Furniture may be rearranged to provide irregular reflection
of the sound. In any event, the true stereo effect is lost if
the two speaker systems are placed too far apart. This may
be corrected by angling them slightly toward each other or
reducing the distance between them.
FUSE CAP
Fig. 1
Take off the fuse cap by turning it with a coin, etc. an the direction indicated by the arrow mark.
A SPEAKER SYSTEM B SPEAKER SYSTEM C SPEAKER SYSTEM
Fig. 2