Roland CPM-120 User manual

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COMPACT POWERED MIXER
CreM-i20
OPERATION MANUAL
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@ FEATURES
e The Roland CPM-120 is a compact yet
high quality Powered Mixer.
e The aluminum diecasting body can bear
the rough use.
@ IMPORTANT NOTES
@ Make sure that the line voltage system in
your country meets the appropriate
power Supply for this unit.
e This unit might get hot while operating,
but this is quite a normal situation caused
by AC powered operation, so there is
nothing to worry about.
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@ Having the Pre-Out and Main-In Jacks,
the CPM-120 can be set up with various
types of devices such as a graphic
equalizer. Also, the Effect Send and the
Return Jacks allows connection with a
digital delay machine, echo machine and
a reverberation unit.
® Set the volume of this unit to zero before
turning it on or off, or hooking It up.
e Avoid using this unit in excessive heat or
humidity or where it may be affected by
dust or direct sunlight.
* Please read the instructions carefully for
proper operation
@ Both standard phone jacks and terminals
are provided for speaker outputs.
e The CPM-120 perfectly functions as a
BTL mixing amplifier.
@ Operating this unit near a neon or fluorescent
lamp may cause noise interference. If so,
change the angle or position of the unit.
e Use a soft cloth and clean only with a mild
detergent.
* Do not use solvents such as thinner.

m@ PANEL DESCRIPTIONS
«Control Paneb
a A a a A a a a a
CHANNEL 1 CHANNEL 2 CHANNEL 3 CHANNEL 4 CHANNEL 5 CHANNEL 6 CHANNEL 7 CHANNEL 8 —_
1 —
@ OVERLOAD INDICATOR oO ss)
OVERLOAD OVERLOAD
@ GAIN
© TREBLE
@ BASS
© EFFECT SEND VOLUME
@ PANPOT
@ CHANNEL VOLUME
@ OVERLOAD INDICATOR
The Overload Indicator will light when
the signal fed into the CPM reaches the
point which is 6dB lower than the clip
level.
@ GAIN
The Gain control is a continuously variable
rotary control that is to be used for
“trimming” the input signal level.
© TREBLE
@ BASS
These are used to boost or cut the portion
of the corresponding spectrum. At “<>”
position, a flat characteristic can be
obtained.
© EFFECT SEND VOLUME
The position of this continuously variable
rotary control determines the amount of
the signal sent from the Effect Send Jack
to the connected unit.
«Rear Panel
@ EFFECT SEND JACK
@ EFFECT RETURN JACK —
@ POWER SWITCH
@ LINE OUT JACK
@MODE SWITCH
@® SPEAKER TERMINAL (STEREO)
@SPEAKER JACK (STEREO)
@ INPUT JACK
This jack is to connect a musical instru-
ment, microphone, etc.
@ EFFECT SEND JACK
Through this jack, signal is sent to the
effect unit.
@ EFFECT RETURN JACK
Through this jack, the signal processed
by the effect unit (effect sound) can be
returned to the CPM.
@ LINE OUT JACK
To this jack, connect other powered
amplifier, tape recorder etc, and the
mixed sound will be sent out.
@ POWER SWITCH
Be sure to turn the Power Switch on or
off with the Master Volume set to low.
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© LEVEL INDICATOR
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* The pickup point of the Effect Send
signal is post channel volume.
@ PANPOT
The Panpot Control routs the signal sent
from the Input Jack to the left and/or
right mixing buses. By means of the
Panpot Control, input signal can be sent
exclusively to one mixing bus, or the
other, to both mixing buses equally, or
since the Panpot Control is continuously
variable to both mixing buses in any
relative proportion desired.
@ CHANNEL VOLUME
This knob controls the volume of each
channel independently.
© LEVEL INDICATOR
The Level Indicator detects the level of
the output signal. When “OdB” lights,
the signal of +4dBm is being sent
through the Output Jack, making the
@ PRE OUT JACK
@ MAIN IN JACK
These jacks can be used to connect a
graphic equalizer to eliminate feedback
and/or to achieve acoustical compatibility
with different performance locations.
* The Pre Out Jack can also be used to
set up another power amplifier, and the
Main In Jack can be used when the CPM-
120 is used as a power amplifier for
other unit.
* When the CPM-120 is used as BTL
amplifier, R does not work, but the Pre
Out Jack L sends out “L+R" signal.
© POWER INDICATOR
@ EFFECT RETURN VOLUME
@ HEADPHONES VOLUME
@ HEADPHONES JACK
@ MASTER VOLUME
RIGHT ———MAS TER VOLUME
rated output of the power amplifier
“60W/40"
© POWER INDICATOR
@ EFFECT RETURN VOLUME
This knob controls the volume of the
effect sound. Rotating the knob
clockwise will increase the volume.
@ HEADPHONES VOLUME
As you rotate this knob clockwise, the
headphones volume will increase. This
knob allows separate level setting free
from the Master Volume.
@ HEADPHONES JACK ‘
This is to connect headphones.
@ MASTER VOLUME
These are two independent controls
which control the volume of the left and
right channels, thus acting as an overall
volume controls for the CPM.
@ INPUT JACK
@ PREOUT JACK
@ MAIN IN JACK
@ SPEAKER JACK (MONO)
@ MODE SWITCH
Using this Mode Switch, the power
amplifier section of the CPM-120 can be
changed from Stereo to Mono (BTL), or
Mono to Stereo.
@ SPEAKER JACK
@ SPEAKER TERMINAL
Use either of these to connect a speaker.
* To use the CPM-120 as BTL(Monaural),
connect the speaker to the MONO (BTL)
of the Speaker Jack.
* When both the Speaker Jack and the
Terminal are simultaneously used, the
Speaker Jack has priority, so there is not
output from the Speaker Terminal.

@
CONNECTIONS
|
MICROPHONE
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TAPE RECORDER
SDE-3000 etc.
DIGITAL DELAY
TAPE
RECORDER
EFFECT
RIGHT LEFT RETURN SEND
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ATTENTION west Oo GO wm: O o = NOTES
eee cece ono 11 uo
ere arene Stl =H If the speaker of less than the specified im-
6.3A/125V .
FAUTION ro coviexorcctn a pedance is connected to th
Cnn REPLACE ONLY WITH oO O [R] [R} ; : t e Speaker Jack or
ATTENTION wn usm ne stl eames te Speaker Terminal of this unit, or the Termi-
ri eariosoe ic aes
nals are short-circuited, the protection
FUSIBLE OF MEME TYPE | |
circuit
will
effectively
work,
therefore,
no
sound
is
heard
from
the
speaker.
If
this
happends,
turn
the
unit
off,
correct
the
connection,
then
turn
it
on
again.
When the Pre Out or the Main In Jacks are
used with the Mode Switch set to MONO,
) ALAAAAAARAARIAAABAIAAAAAAQAD eal the R channel does not function. The L channel
of Pre Out Jacks, however, sends the mixed
signal of L and R.
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STEREO
=
GRAPHIC
Even
though
both
types
of
speaker
outputs;
SRS-80L
SRS-80R
SRS-120
QUALIZER
Jacks
and
Terminal
are
provided,
the
terminal
SPEAKER
SYSTEM
SPEAKER
SYSTEM
SPEAKER
SYSTEM
does
not
function
when
_the
jack
is
being
used. Also, when both[L] and [R] jacks are
used, the Mono Out sends out no signal
(The one has the priority to the following one
like: Stereo L, R Jacks — Mono Jack >
@
OPERATION
Stereo
L,
R
Terminals.)
Set the Treble and If the Overload Indicator or
" the Level Indicator +3dB or
+6dB lights, the sound is dis-
torted, so you need to reduce
the channel volumes, the
Gains or the Master Volume
Controls.
For
usual
mixing
‘Bass
to
appropriate
levels.
]. After setting up the
" CPM-120, set each Gain
Control to LINE. Then
set each Channel Volume
to zero.
Set the relevant Effect
"Send Volume Controls to
appropriate positions.
Alf you wish to Alf you wish to Alf you wish to
; hear sound only hear sound from hear sound only
_Push the Power Switch, from the Left the both Chan- _from the Right
and make sure that the Channel, set the nels, set the Pan- Channel, set the
Power Indicator lights up. Panpot control pot to the centre Panpot Control : Set each Effect Return
pi to the L position. position. to the R position. er a ‘Volume Controls to an
: appropriate position.
/ Set each Channel Volumes
* to an appropriate position.
(Set the volume of the
channel not in use to zero.
3
Rae
_
oO
3 Turn the external devices (Such as an amplifier)
on.
3
-
1
?
Repeat
procedure
9.
4 Set the Gain Control to an appropriate level.
When using headphones
| 8 1 3 Connect stereo headphones to the
: - Headphones Jack, then set the
Set the L and R Master P Headphones Volume
Volumes
to
appropriate
ee
to
an
appropriate
positions.
4
2
}
position.
ALINE=+4dBm AINST= Electric AMIC= Microphone
Output equipment, Guitar, Electronic
etc. Keyboard, etc.

m@ BLOCK DIAGRAM
a | LEVEL METER-L
LEVEL METER-L
OVERLOAD en PRE OUT-L MAIN IN-L
STEREO (MONO L + R)
MASTER VOLUME-L MONO © a i 2
VOLUME PANPOT
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PHONES
V VOLUME
6
SPEAKER
PHONES
o
MONO/BTL
CH-2
( aii LINE OUT-R- | pre OUT-R. MAIN IN- Re 3 4
CH-8
S
STEREO
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MASTER VOLUME-R
EFFECT
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m@ SPECIFICATION
MIXER SECTION
Input Jacks:
Output Jacks:
Channel Controls:
Master Controls:
Indicators:
input Equivalent Noise
Frequency Response
LR EFFECT
LEVEL METER-R
O
came SEND
9]
SPEAKER R
sd
Mic, Line
Input Level (Rated): —50dBm to +4dBm
Input Impedance: 1.5kQ to 160k 0
Effect Return
Input Level (Rated): —20dBm
Input Impedance: 47kO
Line Out L& R
Output Level (Rated): +4dBm
Output Level (Max.): +21dbm
Output Load Impedance: Over 10k
Effect Send
Output Level (Rated): —20dBm
Output Load Impedance: Over 10k
Headphones (50mW/30Q)
Ca. |) Aan lene ae ent ee Re es 2 8
Treble (+10dB/10kHz) ..........0.... 8
Bass (t- OdB/OUKZ! 1 weak cee vee kG 8
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PANDO coro geata. 205 wa atea Guar ok dite a led 8
Channel Volume ................... 8
Master Volume L&R .... 2... 1 each
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Headphone Volume ................ 1
(VET IOGE: jee iso She Bah Soe, SUS he oe 8
Level Indicator L&R ............ 1 each
Power Indicator
—110dBm (IHF-A)
At least Gain: 20Hz to 40kHz (+3dB)
POWER AMPLIFIER SECTION
Input Jacks:
Output Jacks:
Output Terminals:
Selector Switches:
OTHER ITEMS
Power Requirement
Power Consumption
Dimensions
Weight
Mate Ti LOR ees oe tow Cate das te ex 1 each
Input Level (Rated): OdBm
Input Impedance: 47k,
Pre sQOUt ai. oie, daaet Se Bak cet 1 each
Output Level (Rated): OdBm
Output Load Impedance: Over 20kQ
Speaker Out L&R... 2... 1 each
Output (Rated): GOW+ 60W/40:
50W+ 50W/8Q
Speaker Out (Mono) ................ 1
Output (Rated): 120W/80
Speaker Out L&R... le. 1 each
Output (Rated): 6OW+60W/40
5OW+50W/80
Mode Switch (Stereo Mono)
117V AC 60Hz, 220/240V AC 50/60Hz
350VA
364(W) x 179(H) x 256(D)mm/
145/16" X 78" X 108"
8.2kg/18 Ib
* Specifications are subject to change without notice.
I=Roland

— f@Roland’
10625
10625
Roland