Roland JC-60 User manual

Roland
JAZZ CHORUS
JC-60
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INSTRUCTIONS
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FEATURES
©60
watt
(rms)
output
combination
amplifier
equipped
with
chorus
effect
for
deep
and
extensive
sound,
and
characteristic
soft
vibrato
effect
(frequency modulation).
@With
two
input
jacks
(high-gain
and
low-gain),
you
Can
use
guitar
of
any
output.
@Provided
with
Bright
switch
for
wider
variety
of
: tone setting.
@Provided
with
sweet,
creamy
soft
distortion
effect
and
reverb
effect
for
fidelity
and
fullness
of
reverb
by
the
‘‘folded
delay
line”
or
the
latest
““Z
fold”
reverb
unit.
@Cabinet
is
perfectly
guarded:
edges
by
hard
fiber
and
corners
by
PP
protector.
@Chorus/Vibrato,
Reverb
and
Distortion
can
be
remote-controlled
by
footswitches.
You
can
switch
on/off
instantly
without
having
to
take
your
hands
from
the
guitar.
Please
read
these
instructions
carefully
for
proper
connecting
and
operating
procedures.

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CONTROLS AND FUNCTIONS
CONTROL PANEL
INPUT JACK
BRIGHT SWITCH
VOLUME
TREBLE
MIDDLE
TREBLE
VIBRATO SPEED
VIBRATO DEPTH
CHORUS/VIBRATO
BASS
DISTORTION
REVERB
ORS TORTI
PILOT LAMP
POWER SWITCH
se 0 a OT
INPUT JACK
Two input jacks (high and low) are
equipped. For ordinary output guitar,
connect to “HIGH.” For very big output
guitars, connect to ‘‘LOW.”
BRIGHT SWITCH
When this switch is set to ON, clearer
sound can be obtained. Thus, the tone
can be changed to hard or soft.
VOLUME
This knob controls volume. Turn clock-
wise (( }) to increase, and counterclock-
wise ({ )), to decrease.
TREBLE
This knob controls high range response.
Turn clockwise ((}) to lift and counter-
clockwise ({ )), to cut.
MIDDLE
This knob controls middle range response.
Turn clockwise ((}) to lift and counter-
clockwise ({ )), to cut.
REAR PANEL
FUSE HOLDER
|
NAME PLATE
FOOTSWITCH JACK
Connect footswitch to respective jacks
and you can remote-control Chorus/
Vibrato, Reverb, and Distortion to ON
or OFF while in performance.
MAIN-IN JACK
By connecting line-out of another guitar
amplifier, to GA-60, sound reinforce-
ment is attained.
BASS
This knob controls low range response.
Turn clockwise ((}) to lift and counter-
clockwise (()), to cut.
DISTORTION
This knob controls distortion. Turn
clockwise ((}) for greater distortion, and
counterclockwise ({)) for slight distor-
tion. At OFF position, no distortion is
produced.
REVERB
This knob controls reverberation sound.
Turn clockwise ((}) to increase, and
counterclockwise ({)) to decrease.
VIBRATO SPEED
This knob controls speed of vibrato.
Turn clockwise (C)) for faster speed and
counterclockwise (()) for slower vibrato.
EXTERNAL SPEAKER JACK
LINE-OUT JACK
EXTERNAL SPEAKER JACK
External speaker systern with 8Q or over
can be connected and sound can be
produced together with the built-in
speaker. This wields power when wide-
dispersion, stereophonic sound is re-
quired.
VIBRATO DEPTH
This knob controls depth of vibrato.
Turn clockwisé ((}) for deeper effect.
CHORUS/OFF/VIBRATO CHANGE-
OVER SWITCH
Changeover of chorus-normal-vibrato can
be accomplished simply by touching this
switch.
POWER/POLARITY SWITCH — PILOT
LAMP
Set to on to run the amplifier. Pilot lamp
lights. If noise or power-line hum is
heard, change the polarity of power
switch.
FOOTSWITCH JACK
REVERB
CHORUS/VIBRATO DISTORTION
LINE-OUT JACK
JC-6OA can be connected through this
jack to line-in of another guitar amplifier,
slave amplifier or PA mixer. Recording is
also possible by connecting to a tape
deck.

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CONNECTING JC-60
FOOTSWITCH FS-1 FOOTSWITCH FS-2
or: PANE ct or
EXTERNAL SPEAKER TAPE RECORDER
oe,
GUITAR
OPERATING JC-60
TO OBTAIN NORMAL SOUND: Set knobs and controls as illustrated below and adjust volume and tone controls (Treble-
Middle-Bass) to proper positions while playing your guitar.
‘e VOLUME yates pore
°s6GGGOO OO #& of
TO ADJUST CHORUS: After perfecting the setting for normal sound, set Chorus/Vibrato changeover switch to Chorus, to
obtain chorus effect.
SPEED DEPTH
5°OOOOOO O64.
TO ADJUST VIBRATO: After perfecting the setting for normal sound, set Chorus/Vibrato changeover switch to Vibrato, to
obtain vibrato effect. Set Speed and Depth controls at proper positions while playing your guitar.
SPEED DEPTH VIB.
“IOOOOOO OOF o-
TO OBTAIN DISTORTION SOUND: Starting from the setting for normal sound, set Distortion control at proper position in
ON region to obtain soft distortion.
DISTORTION
>°OOOOOO OO
5
TO
ADJUST
REVERB
CONTROL:
Turn
Reverb
Control
to
proper
position
to
obtain
the
reverberation
effect
as
you
like.
CHORUS
EFFECT
With
the
chorus
effect
of
JC
series,
sound-delay
circuit
is
to
produce
a
unison.
By
this
unique
chorus
effect,
sweet
and
used
to
make
a
signal
having
a
slightly
different
pitch
from
soft
color
is
added
to
the
electric
guitar
tone.
the
direct
sound,
which
is
then
mixed
with
the
direct
sound

JC-60
INSTRUCTIONS
Printed
in
Japan
Jan.
‘79
C2
CAUTION
SPECIFICATIONS
'
elf
neon
or
fluorescent
lamp
is
located
close
to
amplifier
Output.
.....
..
+.
GOW
(rms)
|
or
instrument,
that
may
cause
noise.
Separate
them
each
Speaker
.........
30cm
x
1
|
other.
Also,
selecting
direction
of
guitar
can
reduce
the
Channel
.........
1
Input
jack
High/Low
=
NaS
Controls
.........
Volume,
Treble,
Middle,
Bass,
@1f
you
put
in
or
out
the
power
plug
with
amplifier
volume
Distortion,
Reverb,
Vibrato
speed,
set
at
high
level,
speaker
is
heavily
loaded,
causing
the
fear
;
Vibrato.depth:
=.
of
breaking
it.
Do
it
after
turning
volume
to
0”
without
Switches.
........
Bright,
Chorus/Vibrato,
Power
|
fail.
Co
a
a
ee
GEE
F
cotswitch
(Chorus/Vibrato, Reverb,
@When
connecting
instrument
and
amplifier,
connect
cord
Distortion),
External
speaker,
plug
to
instrument
first
and
then
the
other
end
to
amplifier.
Line-out
For
disconnection,
reverse
the
order:
from
amplifier
first
Power
consumption
..
70W
and
then
from
instrument.
Dimensions
.......
600(W)
x
480(H)
x
255(D)mm
eDo
not
exert
big
shock
upon
amplifier.
Avoid
moving
23,.6(W)
x
18.9(H)
x
10(D)in
amplifier
while
it
is
in
operation.
Weight
..........
20kg,
44
lbs
Accessory
........
Vinyl
cover
@ Avoid using JC-60 where there is much dust or under
high
humidity
conditions,
which
may
cause
trouble.
*Specifications
are
subject
to
change
without
notice.
@ lf amplifier is soiled, clean with neutral cleanser.
* Avoid using thinner or the like.
@When replacing fuse, be sure to use that with the specified
rating.
| OPTION
/ FOOTSWITCH FS-1 FOOTSWITCH FS-2
i
Footswitch
for
remote-controlled
ON/
Footswitch
for
remote-controlled
ON/
i OFF operation of effects. OFF operation of effects.
|
®@
FS-5
with
5m
cord
is
also
available.
TROUBLESHOOTING GUIDE
If
your
unit
does
not
operate
properly,
take
proper
action
be
remedied
even
after
the
actions
instructed,
or
if
there
is
consulting
the
table
below.
The
symptom
listed
would
be
any
symptom
other
than
those
listed,
make
contact
with
the
caused
by
mistake
in
using
the
unit.
If
the
trouble
cannot
shop
you
bought
your
JC-60.
SYMPTOM
POSSIBLE
CAUSE
ACTION
TO
BE
TAKEN
E hen itch j t ‘
MS Ve ROWE T ie teeny eae Imperfect connection of power
ON,
pilot
lamp
does
not
light
and
Piug
in
power
cord
perfectly.
:
cord.
no
sound
is
produced.
let fame ahs, BULnG sound Volume is set to minimum. Turn to proper level.
is produced,
Distortion
not
effected.
Footswitch
is
set
to
OFF.
Tread
footswitch
to
ON,
Ravisib
ettectindwerative
Footswitch
is
set
to
OFF.
:
Tread
footswitch
to
ON.
2
‘
Reverb
control
is
set
to
minimum.
Turn
to
proper
level.
Chorus/Vibrato
Changeover
Switch
Set
Chorus/Vibrato
Changeover
Switch
set
to
center
position.
to
Vibrato.
Footswitch is set to OFF. Tread footswitch to ON.
Speed or depth control is set to Turn speed or depth control to
minimum. proper position.
Chorus/Vibrato
Changeover
Switch
Set
Chorus/Vibrato
Changeover
Switch
set
to
center
position.
to
Chorus.
Footswitch
is
set
to
OFF.
Tread
footswitch
to
ON,
Vibrato effect inoperative.
Chorus effect inoperative.
Roland Corporation

GUITAR AMP
SYSTEMS
4 SBE JC-60

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Features
Chorus
Effect
1. The JC-60 is a 60W (R.M.S.) guitar amp, provided
with chorus effect for voluminous rich sound and
vibrato effect for soft, unique effect obtained
through frequency modulation.
2. This amp is provided with three controls (Treble,
Middle and Bass) to enable wide-range tone set-
ting, a distortion control producing soft distortion
sound and an OCE three-spring type Reverb
control which produces clear reverberation effects.
With these controls, you can enjoy full tone varia-
tion.
3. The JC-60 makes impressive, refined appearance,
well integrated with functional design. Solidly
built, all corners and edges are fiberglass reinforced
and riveted.
Chorus effect of the JC series is produced through
the use of special IC, which delays original signals;
signals delayed have different pitches than the ori-
ginal ones. By mixing these signals, sound is produced
in unison—that’s chorus effect.
Thus sounds from an electric guitar are softened to
give heavy sound never possible with conventional
amps, and “wide-spreading”’ effects.
Terminals at Rear Panel
Foot
Switch
Jacks
External
Output
Jack
@
For
Chorus/Vibrato
Control
eer
@
Jacks
for
External
Speakers
On-Off
control
of
Chorus
effect
or
a
By
using
8-ohm
external
speaker
system
Vibrato
effect
can
be
done
via
foot
in
combination
with
the
built-in
speakers,
.
switch
when
the
switch
is
connected
to
powerful
volume
output
is
obtained.
this
jack.
(Controls
one
effect
which
is
indicated
by
the
Chorus/Vibrato
Change-
over Switch at front Panel.)
Py
ae,
oe
-@ Line Out
Use this Line Out when connecting the
JC-60 directly to PA mixer or when
recording.
4
.
a
aaah ® For Reverb Control
On-Off control of Reverb effect can be
done through foot switch.
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Function of Controls
_.--7 © Input (High/Low)
eer Two input sockets are provided for suita-
ble selection according to electric guitar
output to be connected. In general, use
“high” socket, but use “low” with ele-
Ctric guitars having large output.
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_--® Volume Control
Controls volume.
a?
--
~~
-
ae
Tone Controls
Tone controls for treble, middle and bass
enable various tone settings.
_---- © Distortion Control
With this control, sweet distortion sound
is obtained; sounds produced by control
setting are distorted without excessive
tonal change. Turning the control clock-
wise deepens the distortion depth.
--@ Reverb Control
Turning
it
clockwise
deepens
reverbera-
tion
effect.
On-Off
control
of
reverb
effect
is
done
by
foot,
using
foot
switch.
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_--- © Vibrato Speed Control
Controls
vibrato
effect
speed;
turning
the
control
clockwise
increases
the
speed.
-
.--- © Vibrato Depth Control
Controls
depth
of
vibrato
effect;
turning
the
control
clockwise
deepens
the
effect.
--®
Chorus/Vibrato
Changeover
Switch
This
switch
provides
finger-touch
change-
over
of
chorus
and
vibrato
effects
as
well
ON/OFF. It can also be controlled by
pedal
when
foot
switch
is
connected.
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Cautions
Keep away from florescent lamps, neon lamps,
and others which may cause noises. When noises
are generated, change the direction of guitar to
reduce noises.
Set the amp volume to OFF when connecting and
disconnecting the power cord and connection
cord, or the speaker may be damaged. When
connecting instrument to the amp, first plug the
cord in the instrument, and then plug into the
amp. When disconnecting, first un-plug the cord
from the amp, and then the one from the instru-
ment.
Do not give shocks to the amp, since it comprises
precision components. And be sure not to transp-
ort the amp while the power switch is ON.
Avoid use in hot and humid places. Periodically
clean away dirt and dust.
Clean the leather on the amp with natural liquid
detergent or rubber eraser. Avoid thinner or other
organic solvents.
When replacing fuse, use the one specified by
Roland.
JC-60 SPECIFICATIONS
Inputs
Controls
Foot Switch Jacks
Output Jacks
Semiconductors
Output Power:
Power
Consumption:
Speaker:
Dimensions:
Weight:
Accessory
Vibrato Speed
Vibrato Depth
Chorus/Vibrato
Changeover Switch
Power Switch
For Chorus/Vibrato
For Reverb
For EXT. Speaker
(8 ohms)
Line Out
Transistors
Zener Diodes
Dual FET
60W (R.M.S.)
200VA
30cm x 1
600(W) x 255(D) x 480(H)mm
23.6" x 10” x 19”
20 Kgs (44 lbs.)
Vinyl Cover
* Specifications are subject to change without notice.
=
Roland
Printed in Japan ‘75, SEP. F-2

i=Roland*
10164
UPC 10164
Roland