Roland Dimension D SDD-320 User manual

DIMENSION D
The SDD-320 Dimension Dis aspecial-
ly designed chorus effect unit for add-
ing spatial effects to stereo and
monaural sound sources. Monaural in-
puts are converted from asingle point
sound source into asound which fills
the entire stereo field. The Dimension
Dgives anew dimension without the
apparent movement of sound produced
by most other chorus devices.
FEATURES
•Both balanced and unbalanced in-
puts and outpuSs for ease of use in the
studio or on the stage,
•Click-free noisless switching between
four different dimension modes.
•Remote controlled dimension EF-
FECT/NORMAL function.
•Fast acting LED level indicators,
•Low noise (S/N greater than 95dB,
"A" weighted)
.
•Standard 19" rack mounL
CONNECTION
BEFORE STARTING
•Make sure that the line voltage in
your area meets the requirements given
in the specifications.
•Check with your local Roland dealer
if you want to use theS0D-3?Q in a
foreign country,
•Plug the SDD-320 in before turning
on the power switch.
PRECAUTIONS
•Do not open this unit,
•Unplug this unit when i! is not to be
used for long periods of lime. Unplug
by grasping the plug rather than pulling
on the cord,
•Be careful not to place heavy objects
on The power cord,
•Avoid using this unit in very high or
low temperature locations. Also keep
away from heaters and coolers since
this type of equipment will affect circuit
stability,
•Avoid using this unit in very dusty or
humid places.
»If it is necessary to use this unit in an
area with neon or fluorescent lights,
keep it as far away from these lights as
possible since they will induce high
levels of noise. Sometimes changing
the angle of this unit in relation to the
lights will help reduce noise,
•When connecting this unit, plug the
cord into the external amplifier first,
then plug the other end of the cord into
theSDD-320 output. To disconnect, re-
move the cord from the SDD-320 first,
then from the amplifier,
•To clean this unit, wipe with acloth
dampened with aneutral cleanser. Do
not use solvents such as paint thinner.
MONO INPUT
PEDAL SWITCH
DP-2

OPERATION 1. Afler making the connections, set
the INPUT MODE switch ®(rear panel)
as needed. Set both the BYPASS
switch Oand the DIMENSION MODE
@at OFF.
2. Turn on the POWER switch ©and
check that the pilot light above goes
on.
3. Adjust the level of the external
sound source so that the OUTPUT
LEVEL INDICATOR ©reads close to
•Using levels which drive the LEVEL
INDICATOR ©above "0" can cause
distortion. Using levels which cause the
LEVEL INDICATOR ©to read below
"0" will increase the noise level mthe
output signal.
4. Select
MODE© the desired DIMENSION
NAMES AND FUNCTION OF CONTROLS
FRONT PANEL
BYPASS Switch®
The BYPASS switch® makes direct
connections between the inputs and
outputs. This means that the POWER
switch ©may be left OFF when the
SDD-320isin the BYPASS mode.
©©
DIMENSION MODE Selectors @
Selects the dimension mode, MODE 1
produces the softest effect; MODE 4
produces the strongest effect. At OFF,
the sound passes through the SDD-320
without change.
REMOTE Jack®
For remote switching between the OFF
mode and the DIMENSION MODE
using afoot switch (Roland FS-1 or DP-
2; sold separately). To use, select a
DIMENSION MODE ©and use the
foot switch to switch between the
selected mode and normal sound.
•As an example of use: With an organ
as the input sound, play apoigression
of block chords and use ihe foot switch
so that some of the chords are
"straight" and others are "Dimension
D" chords. If the Roland DP-2 Pedal
Switch is used, instant changes can be
made even in very rapid passages. The
DIMENSION MODE IS in effect vv-ith [he
DP-2 depressed and OFF (normal
sound) when released.
EFFECT INDICATOR©
Lights when the DIMENSION MODE is
in effect,
•Works with both the REMOTE jack
©and the DIMENSION MODE se-
lectors ®,
OUTPUT LEVEL INDICATOR ©
Shows combined output level. (OdB
indication== +4dBm output),
•This indicator does not work when
the BYPASS switch ®is ON (BYPASS
MODE).
POWER Switch ©with pilot lamp
INPUT MODE Switch !A)
Selects the input mode. At MONO, left
input is disconnected and right input
serves both dimension channels.
INPUT Connectors g
Balanced inputs (13kfl; max.
+14dBm).
Pin assignments:
input:
Pin 1
Pin 2
Pin 3
shield (ground)
cold
hot
INPUT Jacks C
Unbalanced inputs (26kn: max,
+14dBm).
•Do not use the balanced and un-
balanced outputs simultaneously.
OUTPUT Connectors (0
Balanced output {Q(X)U; nom. level:
-t-4dBm). Pin assignments same as
INPUT connectors ©
OUTPUT Jacks £
Unbalanced output (6000; nom, level:
+4dBml.
•Do not use balanced and unbalanced
outputs simultaneously.
Note: If balanced inputs are used,
use balanced outputs and vice
versa. Do no! use balanced out-
puts when using unbalanced in-
puts, or unbalanced outputs when
using balanced inputs.
input:

BLOCK DIAGRAM SDD-320 OWNER'S MANUAL Printed in Japan July. '81 A-3
LEFr
JHPUT iBVPASE LEPT
OUTPUT
INPUT MODE
jH .';->-t— COMP. j1DELAY [^j EXP \
1
for noise reduction
1[ i
COMP, DELAY EXP
-r-:>
--c>
rj"^i
NOR EFFECT
f
POWER
SUPPL-
3i
OFF
I-liV
RIGHT
OUTPUT
.-TT-
OUTPUT
LEVEL
HETEfl
REMOTE JACI^
Rack Mounting the SDD-320
The SDD-320 can be mounied in astandard 19" rack
using 5mni screws as shown in !he drawing.
•SPECIFICATIONS
SDD-320 DIMENSION D
Input Level
NOMINAL
MAXIMUM
Input Impedance
BALANCED
UNBALANCED
Output Level
NOMINAL
Load Impedance
BALANCED
UMBALANCED
Gain
(MODE =OFF)
S/N
1"A" WEIGHTEDIgreater Ihan 95dB
[0dBni=0,775VRMS]
+4dBm
f14dBm
26 kn
+4dBm
greater than 600n
greater lhan 600n
OdB
RSwitches
DIMENSION MODE (OFF, 1, 2, 3,
0:1
BYPASS (ON, OFF) O;1
INPUT MODE (STEREO, MONO)
:1
POWER Switch @;1
Bindicators
OUTPUT LEVEL @:1
EFFECT :1
POWER Pilot Lamp ;1
Jacks
Input STANDARD Phone (L, R)
:2
XLR (L, R)(B!:2
Output STANDARD Phone (L, R)
:2
XLR (L, R) ©:2
41 Remote (EFFECT-NORMAL
POWER CONSUMPTION
^8W
POWER REQUIREMENTS
100V 50/50H^
n7V 50/60Hz
220V 50/60HZ
240 V50/ 60 Hz
DIMENSIONS
^482(W)x 92(H) x252(Dl mm
^Type EIA-2U rack mount
Weight
a4kg
OPTION
FOOT SWITCH
FS-1
FOOT SWITCH
FS-2 FOOT SWITCH
FS-3
PEDAL SWITCH
DP-2
Roland Corporation