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PRECAUTIONS
On safety
@ Check that the operating voltage of your unit is identical to the
voltage of your local power supply.
For car battery operation, use the car battery cord recommended
for this set.
® Should any liquid or solid object fall into the cabinet, unplug the
unit and have it checked by qualified personnel before operating
it any further.
e Unplug the unit from the wall outlet if it is not to be used 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, ex-
cessive dust, mechanical vibration or shock.
On operation
When
the unit is not used, turn the power off to conserve 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 mois-
tened with mild detergent solution. Do not use any type of abrasive
pad, scouring powder or solvent such as alcohol or benzine.
On repacking
Do not throw away the carton and the packing material. They make
an ideal container to transport the unit in. When shipping the unit
for repair work or to another location, repack it as it was originally
packed at the factory.
If you have any questions about this unit, contact your Sony dealer.
OPERATING VOLTAGE
Before connecting the unit to an ac power source, refer to the serial
plate and check that the operating voltage of your unit is the same
as the local power line voltage.
The USA and Canadian models operate on 120V ac.
The
models
for other countries
operate
on either
110-120V
or
220-240 V ac. The voltage adaptation
must be performed
by au-
thorized Sony personnel.
NOTICE FORTHE CUSTOMERS IN THE UNITED KINGDOM
IMPORTANT
The wires in the mains lead are coloured
in accordance
with the
following code:
Blue:
Neutral
Brown:
Live
As the colours of the wires in the mains lead of this apparatus may
not correspond
with the coloured
markings
identifying
the ter-
minals in your plug proceed as follows:
The wire which is coloured blue must be connected to the terminal
which is marked with the letter N or coloured black.
The wire which is coloured
brown
must be connected to the ter-
minal which is marked with the letter L or coloured red.
MX-P21
MX-P21 |
FUNCTION OF PARTS AND CONTROLS
POWER AND INPUT SECTIONS
@ MIC INPUT 1-8 (microphone input) connectors
(CANNON XLR-3-31 type)
;
For microphones.
Pin arrangement
1: GND
2: hot
3: cold
© +48V (microphone power supply) switches
Set to ON
to supply 48V dc, 7mA
(max) to phantom
powered
condenser
microphones
connected
to the corresponding
MIC
INPUT connectors.
© LINE/PHONO
INPUT 1-6 jacks (phono jacks)
Accept
line-out
signals
from
tape
decks
and
amplifiers,
or
phonoout
signals from
record
players
equipped
with moving-
magnet type cartridges.
@ LINE INPUT 7/8 jacks (phono jacks)
Accept line-out signals from a tape deck or an amplifier.
© Ground terminal
When
connected audio equippment
such as a record player re-
quires earth
connection
to reduce
hum
or other
undesirable
noise, connect its ground wire to this terminal.
© SUB INPUT jacks (phono jacks)
Accept
auxiliary
input
signais
such
as those
from
an
echo
machine. |
@ FADER
REMOTE
3/4 jacks (phono jacks)
By sliding up the channel
faders of channel
3 and 4 from the
minimum
(0) position,
these
jacks
will
be short-circuited
to
switch on audio equipment connected via an appropriate inter-
face unit.
The permitted current to be supplied to these jacks is max.2mA.
© DC IN +12V (DC power supply) jack
To power this unit from a 12V car battery. For connection, use
the optional DCC-16A, DCC-16AE or DCC-16AW car battery cord.
to a cigarette
lighter socket
of a car
ex. DCC-16A
Note: Use only the recommended
car battery cord manufactured
by Sony. Polarity of the plugs of other manufacturers may be dif-
ferent.
A
Polarity of the plug of the
Sony car battery cord
socket.
use the ac plug adaptor.
@ SUB IN 1/2 PAN knobs
Position the sound image of SUB INPUT 1 or 2 in the desired
place between the output L and R channels.
@® POWER switch and pilot lamps
Depress the switch to turn on the unit.
When ac power is supplied, the AC pilot lamp will light.
When dc power is supplied, the DC lamp will light.
@ If both ac and dc power supplies are connected, the both the
AC and DC tamps will light.
OUTPUT SECTION
@ LINE OUT LIR (line output) connectors
(CANNON XLR-3-32 type)
® PEAK indicators
Feed out the mixed line output signals (balanced).
Light up if the corresponding input signals level is within 5dB of
1: GND
2: hot
3: cold
@ INPUT SELECT switches
To remove
Select the input sources. The switches of channels
1 to 6 have
press here.
three positions; LINE, MIC, PHONO
and the switches of chan-
WV
oO
nets 7 and 8 have two; LINE, MIC.
iS
® MIC (microphone gain) controls
Reduce excessive microphone input level and prevent distortion.
Adjust these controls so that the proper level can be obtained
when each corresponding
fader is set at 7".
@ LINE LIR (line output) jacks (phono jacks)
Turn
the controls
counterclockwise
when
the corresponding
Feed
out
the
same
signals
(unbalanced,
however)
as
the
PEAK indicators light up.
CANNON
type connectors @.
@ LCF (low-cut filter) switches
@ AUX 1/2 (auxiliary output) jacks (phono jacks)
When the switches are depressed, input signals below 120Hz
— Each supplies monaural output signals independently of the line
are attenuated at a 12dB/octave rate.
outputs @@. Connect to an echo machine or a power amplifier
to drive a foid-back speaker.
® EQ (equalization) switches and controls
When
the EQ switches
are depressed,
the input signals pass
@ TB ( talk-back output) jack (phono jack)
through
the equalizer
circuits. Adjust the controls to equalize
While the TB OUT button of the TALK
BACK
buttons @ is de-
the sound sources. The Hi controls are for the high-frequency
— pressed, the signal from the built-in microphone is fed to this
range
around
10kHz,
the
MID
controls
are for the middle-
jack.
'frequency range around 2.8kHz and the LOW controls are for the
low-frequency range around
100 Hz.
@ CASCADE
IN/OUT connectors (8-pin DIN connectors)
For connecting two or more MX-P21
units in parallel to increase
® AUX 1/2 (auxiliary output level) controls
the number of inputs.
Ajust the signals level of each channel going to the auxiliary out-
puts 1 or 2 respectively.
Pin arrangement
1: AUX-1
5: PFL control
S72
2: GND
6: LINEL
® PRE (pre-fader) switches
(Soe)
3: AUX-2
7: LINER
When the switches
are depressed, the pre-fader signals of the
y969
4: PFL audio
8: GND
corresponding
channels
can
be fed to the auxiliary output
1.
.
These are especially useful when the auxiliary output 1 is used
Connection
8 inputs
8 inputs
for a fold-back speaker.
@® PAN POT knobs
These permit panning of the incoming signals between the out-
put Land R channels. The center click positions place the sound
images in the center.
CASCADE
CASCADE
OUT
IN
8-pin shielded cable
(max. 1m long)
Cc
ist mixer
2nd mixer
The image
v(; »y The image
moves to
moves to
the left.
e
©
ight.
C
R
the right
LINE OUT
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