Oberheim OB3 SQUARED User manual

Ver. 2.0
MANUALE OPERATIVO
Per le versioni Keyboard ed Expander
OPERATING MANUAL
For Keyboard and Expander
2
OB3SQUARED
ORGAN SOUND GENERATOR

WARNING: READ THIS FIRST!
∗∗∗
AVIS IMPORTANT!
WARNING
AVIS
RISK OF ELECTRIC SHOCK
DO NOT OPEN
RISQUE DE CHOC ÉLECTRIQUE
NE PAS OUVRIR
This symbol is intended to alert the user to the
presence of uninsulated “dangerous voltage”
within the product’s enclosure that may be of
sufficient magnitude to constitute a risk of electric
shock to persons.
This symbol is intended to alert the user to the
presence of important operating and maintenance
(servicing) instructions in the literature
accompanying the appliance.
CAUTION
TO REDUCE THE DANGER OF ELECTRIC SHOCK
DO NOT REMOVE COVER (OR BACK)
NO USER-SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL
ATTENTION
AFIN D’EVITER LES RISQUES DE CHOC ÉLECTRIQUE:
NE PAS OUVRIR LE COUVERCLE (OU PANNEAU ARRIERE)
L’UTILISATEUR NE PEUT EFFECTUER AUCUNE REPARATION
PUOR TOUTE REPARATION EVENTUELLE, FAIRE APPEL A
UN PERSONNEL QUALIFIE
Ce simbole sert pour avertir l’utilisateur
qu’à l’interieur de ce produit sont
présents éléments non isolés soumis à
“tensions dangereuses” suffisants à créer
un risque d’électrocution.
Ce simbole sert pour avertir l’utilisateur
qu’à l’interieur de la documentation de
l’appareil sont présentes importantes
instructions pour l’utilisation correcte et la
manutention de l’appareil.
“INSTRUCTIONS PERTAINING TO A RISK OF FIRE,
ELECTRIC SHOCK, OR INJURY TO PERSONS”
IMPORTANT SAFETY INSTRUCTIONS
WARNING:
1) Read these instructions.
2) Keep these instructions.
3) Heed all warnings.
4) Follow all instructions.
5) Do not use this apparatus near water.
6) Clean only with dry cloth.
7) Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8) Do not install near any heat sources such as radiators, heat registers, stoves,
or other apparatus (including amplifiers) that produce heat.
9) Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one
wider than the other. A grounding type plug has two blades and a third grounding prong. The wider blade or the third
prong are provided for your safety. If the provided plug does not fit in to your outlet, consult an electrician for replacement
of the obsolete outlet.
10) Protect the power cord from being walked on on pinhead, particularly at plugs, convenience receptacles,
and the point where they exit form the apparatus.
11) Only use attachments/accessories specified by the manufacturer.
12) Use only with the cart, stand, tripod, bracket, or table specified by
the manufacturer, or sold, with the apparatus.
When a cart is used, use caution when moving the cart/apparatus
combination to avoid injury from tip-over.
13) Unplug this apparatus during lightning storms or when unused for long periods of time.
14) Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged
in any way, such ad power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into
the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
SAVE THESE INSTRUCTIONS INSTRUCTIONS A CONSERVER
∗∗∗

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CONTENTS
Introductory tables..........................................................................................15
BEFORE STARTING...
1.1 A few simple precautions.........................................................................17
1.2 Preliminary operations.............................................................................17
CONTROLS AND ADJUSTMENTS
2.1 Structure of the OB-3 squared.................................................................18
2.2 Percussion section...................................................................................18
2.3 General controls.......................................................................................19
2.4 Rotary effect.............................................................................................19
2.5 Saving a combination of drawstops in the memory.................................20
MIDI FUNCTIONS AND MODES OF OPERATION
3.1 Modes of operation..................................................................................21
3.2 Setting split points....................................................................................21
3.3 How to set up the Volume level for the Bass and Lower preset..............22
3.4 Selecting the MIDI channels for reception and transmission..................22
3.5 Parameter and functions controls through Standard Midi CC.................22
3.6 Parameter and functions controlled through Midi SYS-EX......................24
3.7 Exclusive Bulk Dump system...................................................................18

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FRONT PANEL
1- TONE section
: Trimmers allowing adjustment of the instrument's general equalization.
2 - MASTER section
: Two controls allowing the user to set the unit's general volume (VOLUME) and
the quantity of distortion (OVERDRIVE) as preferred. N.B.: OVERDRIVE adjustment is ONLY
enabled with the Rotary effect active.
3 - REVERB section
: The EFFECT trimmer (with a choice of fixed settings) can be used to select
one of the 5 reverb effects available (OFF = effect disabled). The VOLUME control of this section
adjusts the general amount of effect.
4 - VIBRATO AND CHORUS
section: The knob with a choice of fixed settings in this section can be
used to select 3 types of VIBRATO and 3 types of CHORUS effect. The UPPER and LOWER
buttons enable the effect selected on the respective sections.
5 - PERCUSSION section
: Allows activation of 2 types of percussion (2nd and 3rd buttons). The
user can also adjust the level of the percussion effect (NORM/SOFT button) and its fade time
(SLOW/FAST).
6 - UPPER MEMORY section
: This section provides 6 memory sites where the user can save 6
timbres created for the UPPER section (keys I to IV) for subsequent recall. The DRAWSTOPS key
enables operation of the drawbar sliders (section 10).
7- LOWER PRESET section
: Using the keys in the Lower Preset section, the user can select a
timbre (which cannot be subsequently modified) to be assigned to the LOWER section, with a choice
from ORG. 1 to ORG. 6. The BASS key includes or excludes the pedal section timbre.
8 - ROTARY section
: The SLOW and FAST keys allow the user to choose one of two rotation
speeds for the Rotary Speaker effect (which can also be recalled from the foot-switch). The SLOW
key also switches the effect on and off.
9 - MIDI
: This key is pressed (together with other dual function keys) to enable management of the
instrument's MIDI functions.

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REAR PANEL
1- POWER
: Machine on/off switch.
2 - ADAPTOR
: Connect the terminal of 10.5 VAC adaptor supplied with the instrument to this socket.
3 - SLOW/FAST (ROTARY
): If an optional foot-switch is connected to this connector, whenever it is
pressed the Rotary effect will switch from slow to fast rotation and vice-versa.
4 - MEMORY/DRAWSTOPS
: If an optional foot-switch is connected, whenever it is pressed the
system will switch from the DRAWSTOPS state (drawbars enabled) to recall of the programmable
memories.
5 - VOLUME
: Socket for connection of a pedal for adjustment of the general volume of the
instrument (optional).
6 - PITCH
: This trimmer can be used to adjust the fine tuning of the instrument.
7 - MIDI IN
: 5 pin DIN connector which acts as input for the MIDI data from remote devices (master
keyboards, keyboards, sequencer, etc.)
8 - MIDI OUT
: 5 pin DIN connector which acts as output for the MIDI data generated by the machine.
9 - MIDI THRU
: This connector allows the MIDI data reaching the MIDI IN connector to be picked up
(as such) for transmission to any other equipment connected.
10 - OUTPUT
: General instrument stereo outputs (L and R channels). This pair of sockets can be
used to connect the machine to an amplification system.
If a mono amplification system is available, use the L (MONO) socket only.
11 - HEADPHONES
: Output for headphones.

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BEFORE STARTING .....
1.1 A few simple precautions
The following is a list of a number of simple precautions to be adopted when using and
maintaining the instrument in order to avoid damage to its mechanical and electronic
structures:
• Never apply excessive force to the instrument's mechanical parts and knobs.
• Do not stress the instrument in transit or during use.
• Do not place the instrument close to heat sources, in excessively damp or dusty places
or close to strong magnetic fields.
• When possible, do not place the instrument close to units which generate strong
interference, such as radio and TV sets, monitors, etc.
• Never insert foreign bodies or liquids of any kind inside the instrument, for any reason.
• Never use solvents on the instrument's finishes. To clean, use only a soft cloth dipped in
water.
• Never attempt to repair or modify the instrument in any way; always call in skilled
personnel for any repairs.
• Use only foot-switches with normally open contact. The prolonged use of unsuitable
foot-switches causes serious damage to the instrument's electronic components.
• Disconnect the power supply lead from the mains socket if the instrument is to be out of
use for long periods.
• Use only original adaptors or models which comply in full with the specifications stated by
the manufacturer; check that the mains voltage is as indicated on the body of the
adaptor.
1.2 Preliminary Operations
Connect the equipment to the mains power supply by means of the adaptor (10.5 VAC)
supplied as standard with the instrument.
Using two jack connectors, connect the L and R outputs also on the rear (output) to the input
of the amplifier or the mixer; if you have a mono amplifier available, connect to the L/MONO
output only.
If you have the model in Expander format available, connect the MIDI OUT socket of the
pilot instrument (keyboard, master keyboard, etc.) to the OB-3 MIDI IN socket.
Now switch on the pilot instrument (if you have an OB-3 Squared Expander), the OB-3 and
then the amplification system, in that order.

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CONTROLS AND ADJUSTMENTS
2.1 Structure of the OB3-Squared
Whether the instrument is equipped with a single keyboard (OB-3 Squared keyboard) or is in
the module version (OB-3 Squared), all the instructions for use still apply unless otherwise
stated.
The OB-3 Squared has been specially developed to provide the player with an instrument
which reproduces both the sound and the playing mode of the mythical electromagnetic
organ of the '60s and '70s.
Like the electromagnetic organ, the OB-3 Squared is subdivided into 3 sections:
- Upper Memory section: Main section of the instrument corresponding to the upper
manual: it is equipped with six programmable memories plus the DRAWSTOPS key which
enables manual operation of the drawbars. When the instrument leaves the factory, the
memories in this section are already programmed with standard drawbar presettings. Try
playing your favourite pieces and listen to how each of them sounds, then press the
DRAWBARS key and try to create different sounds for yourself.
Bear in mind that if necessary you can save your new combinations inside the memories, for
recall whenever you wish.
- Lower Preset section: The Lower Preset section (which emulates the lower manual of the
electromagnetic organ) consists of 5 non modifiable, mutual exclusive presettings (keys from
ORG.1 to ORG.6).
- Bass section: This section (which emulates the pedal section of the electromagnetic
organ) consists of a single key incorporated in the Lower / Preset section. This key (BASS)
is pressed to activate (LED on) or disactivate (LED off) the pedal section sound. The range
of the BASS section cannot exceed that of the LOWER section (see point 2.2).
IMPORTANT NOTE: In the expander version, depending on the operating mode chosen
the three sections may be present simultaneously and split over the keyboard (single midi
reception channel), or each section may respond to its own midi channel. See points 3.1
and 3.2 for more information.
2.2 PERCUSSION section
As well as the sounds present in the memories and those created directly using the
drawbars, it is possible to apply an effect typical of the electromagnetic organ, percussion on
two different stops (4' and 2 2/3').
These percussions (known as the 2nd and 3rd) are mutually exclusive and can be set in
normal or soft version (percussion volume normal or reduced) and slow/fast (long and short
fade time) using special keys close to those controlling the percussions themselves.

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Although they affect the sounds of the upper section, the status of the percussion functions
cannot be saved in the memory.
2.3 General controls
The following is a list of the instrument's general controls, common to all sections.
- At the top is the TONE section which adjusts the general equalization of the instrument; the
BASS
trimmer adjusts the intensity of the bass tones while the
TREBLE
trimmer adjusts
the high tones.
- The MASTER section consists of the general
VOLUME
control plus a control known as the
OVERDRIVE
, which allows adjustment of the "saturation" effect: turn the trimmer to the
right to increase this effect.
N.B.: OVERDRIVE adjustment is only enabled if the ROTARY effect is active (see point
2.4).
- The REVERB section offers 4 types of reverb effects and 1 delay effects, as follows.
- OFF: No effect selected
- Delay: This effect is more commonly known as the echo.
- Spring: Simulates the reverberation produced by a spring system.
- Plate: Simulates the reverberation produced by a metal plate, of the type which remained
in vogue in recording studios for a long time.
- Room: Simulates the typical reverberation of a medium-sized room.
- Hall: Simulates the reverberation of a large hall.
The required effect is selected using the EFFECT knob, while the intensity of the selected
effect is adjusted using the VOLUME trimmer of this section.
- The VIBRATO AND CHORUS section also allows the user to select a number of effects
typical of the electromagnetic organ, such as the vibrato effect (available in 3 types, V1-V2-
V3) and the chorus effect, also available in 3 types (C1-C2-C3).
The Vibrato and Chorus knob (which has six preset positions) can thus be turned to select
one of the effects described above. Beside this knob there are two buttons, Lower and
Upper, used to send the selected Chorus or Vibrato effect to either of these sections.
N.B.: If the LEDS of both the Upper and Lower sections are off, the Chorus/Vibrato effect
will not be audible.
2.4 ROTARY effect
The success of the electromagnetic organ also brought popularity for a special amplification
system, the speakers of which turned on their own axes inside the speaker casing.
This amplifier (known as the Leslie ® amplifier), consisted of two sections, one for the
trebles and one for the basses, which were able to turn at different speeds. The OB-3
algorithm reproduces the effect of this amplification system in detail.
The Rotary effect is controlled using the SLOW and FAST keys as follows:

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- When the SLOW key is pressed, the LED in the key illuminates and the effect is activated
with LOW rotation speed.
- When the FAST key is pressed, the effect gradually changes to HIGH speed rotation.
Press this key again (the LED goes out) to return gradually to the previous condition.
- Press the SLOW key again to disactivate the effect (the LED will go out).
2.5 Saving a combination of drawstops in the memory
First press the DRAWSTOPS key (the key LED illuminates) and use the cursor sliders to
build up the sound you require.
Then keep the DRAWSTOPS key pressed and also select the memory location in which the
programming is to be saved (UPPER MEMORY section keys from I to VI).
Now release the two keys. Your new setup has been saved, ready for recall at any moment.
N.B. When a new setup is saved, a previous setup will be deleted with no possibility of
retrieval. However, the BULK DUMP procedures can be used to record the presettings
saved in the form of MIDI SYS-EX codes.

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MIDI FUNCTIONS and MODES OF OPERATION
3.1 Modes of operation
The OB-3 Squared series offers 3 different MIDI channel reception operating modes, as
follows:
- Mode 1:
The three sections will respond on a single midi channel, and so if selected they will play
simultaneously.
N.B. The bass tone will not cover the entire range of the keyboard, but the range between
the lowest note on the keyboard and the programmed split point (see point 2.2). Only
program changes relating to the UPPER part will be received and transmitted.
- Mode 2:
The BASS and LOWER sections receive on the same channel, which is different from that
of the UPPER section. Only program changes relating to the UPPER and LOWER sections
will be received and transmitted.
- Mode 3:
Each of the three sections will be enabled to receive on its own midi channel. Only program
changes relating to all three parts will be received and transmitted.
To select the required operating mode, press the MIDI key (the LED in the key illuminates).
The identifiers M1 (Mode 1), M2 (Mode 2) and M3 (Mode 3) are screen-printed in pink above
the UPPER MEMORY section keys IV, V and VI. Press the key relating to the chosen mode
and press the MIDI key again (its LED will go out).
3.2 Setting split points
The instrument allows the user to set up to two split points, one between the UPPER and
LOWER sections and the other, within the limits set for the LOWER section, for the
BASS section.
To do this, the instrument's MIDI control function has to be enabled, so press the MIDI key
(the LED in the key illuminates) and then press the RX/TX (Rotary SLOW) key and keep it
pressed until the flashing LED indicating the operating mode goes out altogether.
Keeping the RX/TX key pressed, press key M3 (Drawstops) and keeping it pressed, press
any key on the keyboard below C4. The chosen note will be the split point for the LOWER
section.
In the procedure described above, press M2 (VI) instead of M3 to set the BASS section split
point.
N.B. When a split is applied to the LOWER section, the bass voice will also automatically
follow this value. To maintain the two different values, set the split on the LOWER section
first, and then repeat the procedure for the bass.

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3.3 How to set up the Volume level for the Bass and Lower preset sections
To set up the Volume level for the Bass and Lower section, proceed as follow:
• Bass Section: Keeping pressed the “Bass” (preset) button, adjust the volume level
through the “Master Volume” knob
• Lower Section: Keeping pressed one of the “Lower presets” push buttons, adjust the
volume level trough the “Master Volume” Knob.
Once you have set up the volumes, you should set up the Master Volume to the original
position as it controls the general volume of the instrument.
3.4 Selecting the MIDI channel for reception and transmission
To select the MIDI channel for reception/transmission, press the MIDI key (the LED in the
key illuminates) and then the RX/TX key.
Referring to the pink identifiers screen-printed on the instrument keys, select the required
channel from 1 to 16 (the LED of the key pressed flashes). Press the MIDI key again to exit
and make the selection operational.
The channel selected will refer to the UPPER section only. In case of operating modes
2 and 3, bear in mind that the MIDI channels for the LOWER and BASS sections are
derived from that set for the UPPER section in accordance with the following rule:
LOWER midi channel = UPPER midi channel + 1
BASS midi channel = UPPER midi channel + 2
for example:
With UPPER CH. = 1 ---> LOWER = CH.2 and BASS = CH.3
With UPPER CH. = 7 ---> LOWER = CH.8 and BASS = CH.9
3.5 Parameters and functions controls through the Standard Midi Control Change
Some functions contained in the instrument can be controlled through the Standard
Control Change codes (CC) contained in the documentation about the Midi
communications. Through an instrument able to transmit this type of message (i.e
Sequencers, Master Keyboards, computers etc.) it will be possible to control the following
funtions:
• ROTARY Effect: Slow and fast speed
Through Control change #14 (Undefined) it is possible to change the two speeds for the
rotary effect by means of an external instrument able to run these Midi messages
(sequencers, master keyboards, computers etc).
When using this control please noter that Control Change 14 less than 64 (decimals)
will select the slow Rotary Effect, whilst values greater than 64 will select the fast Rotary
effect

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• ROTARY effect: transit time from slow to fast speed
The use of the control change #12 (Effect control 1) permits the adjustment of the time
taken by the rotary effect when moving from the slow to the fast speed.
The value of this control change (selectable between 0-127) will give a high or low
transit time.
• ROTARY effect: transit time from fast to low speed
Same as control change 12, also the control change #13 (effect control 2) will adjust the
transit time when moving from fast to slow speed.
The use of this Midi control will adjust the time taken by the rotary effect when moving
from the fast to the slow speed.
The value of this control change (selectable between 0-127) will give alow or high transit
time.
• DELAY effect (echo): Depth
The Delay effect depth can be adjusted through the Control Change #91 (effect depth).
Giving to this control a value between 0 and 127 it will change the depth on the repeating
functions.
Low values will have a lower depth effect
• DELAY effect: Feedback ( Repeat number of the echo effect)
The control change #102 (Undefined) adjusts the Feedback parameter of the delay
effect, i.e: it adjusts the repeating number. With a low value of control change there will be
a low repeating number.
• DAMPER
The Damper effect (known also as Sustain) can be removed using the control change
#64. As it is an On/Off control ,giving to it values higher than 64, the damper will be on;
whilst with values lower than 64, it will be off.
N.B: According to the selected mode (see paragraph 3.1) and to the Midi Channel where
the relevant control change is located (see paragraph 3.3) it will be possible to activate
the damper on all sections or on each section of the instrument (upper, lower and bass)
• PITCH BENDER
The instrument can receive the Pitch Bender control either on all sections or on
individual sections (according to the operation mode or to the channel where the control
is). The range is set with a limit +/1 semitone.
• ALL SOUNDS OFF
Sending control change #120 with a 0value on the relevant Midi Chanel., the Ob3square
will effect the All Sound Off procedure; this means that it will automatically release all
playing notes. If the damper was on previously, it will return to on.

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• ALL NOTES OFF
Also, the All notes Off procedure (activated through the control change #123 with value
0) will release all playing notes. The difference between the All sound Off is in that this
does not return the damper to the original position
3.6 Parameters and functions controlled through MIDI SYS-EX
Besides what already described , the ob 3 square is able to run on system exclusive
messages (Sys-Ex) which may be sent to the instruments with the following syntax:
F0 31 01 01 cc vv vv F7
where:
1st byte = F0 indicates the beginning of the transmission of a string containing exclusive
codes
2nd byte = 32 Is the number identifying the builder
3rd byte = 01 First identification of the OB3 squared model
4th byte = 01 Second identification of the OB3 squared model
5th byte = cc It identifies the tipology of the sent command
6th byte = vv It indicates the value to associate with the sent command
7th byte = vv Extension of the 5° byte when the range of the values is not definible with
a single byte
8th byte = F7 It indicates the end of the exclusive message (Eox)
the table below summarizes all the parameters controllable via exclusive system .
• Values xx and yy when present indicate the variable (composed by two bytes)
adjustment. The values will have to follow the hexadecimal numeration from 00 00 to 01
7F
• The number within the bracket excludes itself.
Parameter Sys-Ex String
Livello drawstop 16' F0 31 01 01 36 xx yy F7
Livello drawstop 5' 1/3 F0 31 01 01 37 xx yy F7
Livello drawstop 8' F0 31 01 01 38 xx yy F7
Livello drawstop 4' F0 31 01 01 39 xx yy F7
Livello drawstop 2' 2/3 F0 31 01 01 3A xx yy F7
Livello drawstop 2' F0 31 01 01 3B xx yy F7
Livello drawstop 1' 3/5 F0 31 01 01 3C xx yy F7
Livello drawstop 1' 1/3 F0 31 01 01 3D xx yy F7
Livello drawstop 1' F0 31 01 01 3E xx yy F7
Overdrive level F0 31 01 01 01 xx yy F7
Reverb level F0 31 01 01 02 xx yy F7
Bass preset on (0) F0 31 01 01 17 F7
Bass preset off (0) F0 31 01 01 35 F7
Org.1 lower preset on (1) F0 31 01 01 1F F7
Org.2 lower preset on (1) F0 31 01 01 20 F7
Org.3 lower preset on (1) F0 31 01 01 21 F7
Org.4 lower preset on (1) F0 31 01 01 22 F7
Org.5 lower preset on (1) F0 31 01 01 23 F7
Org.(n) lower preset off (1) F0 31 01 01 34 F7

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Parameter Sys-Ex String
Rotary on (2) F0 31 01 01 0E 01 F7
Rotary off (2) F0 31 01 01 0E 00 F7
Rotary fast (3) F0 31 01 01 0F 01 F7
Rotary slow (3) F0 31 01 01 0F 00 F7
Upper memory 1 on (4) F0 31 01 01 29 F7
Upper memory 2 on (4) F0 31 01 01 2A F7
Upper memory 3 on (4) F0 31 01 01 2B F7
Upper memory 4 on (4) F0 31 01 01 2C F7
Upper memory 5 on (4) F0 31 01 01 2D F7
Upper memory 6 on (4) F0 31 01 01 2E F7
Drawstops on (4) F0 31 01 01 33 F7
Percussion soft (5) F0 31 01 01 12 01 F7
Percussion norm. (5) F0 31 01 01 12 00 F7
Percussion fast (6) F0 31 01 01 13 01 F7
Percussion slow (6) F0 31 01 01 13 00 F7
Percussion 2th (7) F0 31 01 01 14 F7
Percussion 3rd (7) F0 31 01 01 15 F7
Percussions off (7) F0 31 01 01 16 F7
Vibrato / chorus to upper on (8) F0 31 01 01 06 01 F7
Vibrato / chorus to upper off (8) F0 31 01 01 06 00 F7
Vibrato / chorus to lower. on (8) F0 31 01 01 07 01 F7
Vibrato / chorus to lower. off (8) F0 31 01 01 07 00 F7
Delay effect on (9) F0 31 01 01 04 01 F7
Spring effect on (9) F0 31 01 01 04 02 F7
Plate effect on (9) F0 31 01 01 04 03 F7
Room effect on (9) F0 31 01 01 04 04 F7
Hall effect on (9) F0 31 01 01 04 05 F7
Effect off position (9) F0 31 01 01 04 00 F7
Vibrato V1 position (10) F0 31 01 01 05 01 F7
Vibrato V2 position (10) F0 31 01 01 05 02 F7
Vibrato V3 position (10) F0 31 01 01 05 03 F7
Chorus C1 position (10) F0 31 01 01 05 04 F7
Chorus C2 position (10) F0 31 01 01 05 05 F7
Chorus C3 position (10) F0 31 01 01 05 06 F7
3.7 Exclusive Bulk Dump System
This utility allows the user to send all the data resident in the OB-3 programmable memory
to the MIDI-OUT port in the form of exclusive system (MIDI Sys. Ex.) codes. These data
can be recorded in a computer, sequencer or data filer, thus allowing the user to create one
or more set-up archives for himself and reload them into the OB-3 as required.
Connect the instrument MIDI OUT port to the MIDI IN port of the computer or sequencer.
After pressing the MIDI key on the OB-3, start recording on the connected instrument and
then press the SYS.EX DUMP (Rotary Fast) key.
After a few moments, the saving procedure will have finished. Press the MIDI key to exit
and return to the normal operating mode.
To reload the data saved previously onto the OB-3, connect the MIDI OUT port of the
sequencer or computer to the instrument MIDI IN port; start playback and the data will be
reloaded.

MIDI IMPLEMENTATION CHART
Viscount -Oberheim OB-3 Squared Date: May 22th, 1997
Organ sound generator Version: 2.0
FUNCTION ... TRANSMITTED RECOGNIZED REMARKS
BASIC DEFAULT
CHANNEL CHANGED 1 - 16
1 - 16 1 - 16 1 - 16 Up to 2 different Ch (M 2) Up to 3 different Ch (M 3)
MODE Default
Messages
Altered
Mode 3
**********
Mode 3
NOTE
NUMBER True Voice 36 - 96 (*)
0 - 127 36 - 96
VELOCITY Note ON
Note OFF Fixed on 64 (*)
X X X
AFTER Key’s
TOUCH Ch’s X
X X X
PITCH BENDER X X
CONTROL 7
CHANGE 11
12
13
14
64
91
102
120
123
O
O
X
X
X
X
X
X
X
X
O
O
O
O
O
O
O
O
O
O
Volume
Expression
Transition Time slow/fast
Transition Time fast/slow
Rotary Slow / Fast
Damper Pedal
Delay Depth
Delay FeedBack
All sounds Off
All notes Off
PROGRAM
CHANGE True #
0 - 6 0 - 6 PG=0 on Upper = Drawstops PG=0 on Lwr/bas = Preset Off
SYSTEM EXCLUSIVE O O
SYSTEM Song Pos
COMMON Song Sel
Tune
X
X
X
X
X
X
SYSTEM Clock
REAL TIME Commands X
X X X
AUX Local On-Off
MESSAGES All note Off
Active Sense
Reset
X
X
O
X
X
O
O
X
NOTES: (*) Only Ob3-sqauared Keyboard version
Mode 1: Omni On, Poly Mode 2: Omni On, Mono O = YES
Mode 3: Omni Off, Poly Mode 4: Omni Off, Mono X = NO

CAUTION! This product contains a lithium battery. There is danger of explosion if battery is
incorretly replaced. Replace only with a Maxell CR2032.
Replace only with the correct polarity. Discard used battery according to manufacter’s
instruction’s.
ADVARSEL! Lithiumbatteri –Eksplosjonsfare. Vadeutksifting benytteskun batterisomanbefalt
av apparatfabrikanten. Brukt batteri returneres apparatleverandøren.
ADVARSEL! Lithiumbatteri - Eksplosjonsfarevedfejlagtig håndtering. Udskiftningmåkun ske
med batteri av samme fabrikat og type. Levér det brugte batteri tilbage til leverandøren.
VAROITUS! Paristo voi räfähtää, jos se on virheellisesti asennettu. Vaihda paristo ainoastaan
laitevalmistajansuosittelemaan tyyppin. Hävitäkäytetty paristovalmistajanohjeidenmukaisesti.
WARNING! Explosionsfar vid felaktigt batteribyte. Anväd samma batterityp eller en ekvivalent
typ som rekommendars av apparatillverkaren. Kassera använt batteri enlight fabrikantens
istructions.
The information contained in this manual is subject to change at any time without notification.
Some information contained in this manual may also be inaccurate due to undocumented
changes in the product or operating system since this version of the manual was completed.
Theinformation containedinthis versionof theowner’s manualsupercedesall previousversion.
NOTE: This equipment has been tested and found to comply with the limits for a Class B
digital Device, persuant to Part 15 if the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This equipment
generates, uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instruction, may cause harmful interference to radio comunications.
However, there is no guarantee that the interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can be
determinated by turning the equipment off and on, the user is encuraged to try to correct the
interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
- Consult the dealer or an experienced Radio/Tv technician for help.
The user is cautioned that any changes or modification not expressly approved by the party
responsable for compliance could void the user’s authority opearate the equipment.

Sales Division: Via Belvedere Fogliense 8, I-47836 Mondaino (RN) Italy
tel.[phone] - fax [phone] -
e-mail: [e-mail] - Internet: www.viscount-organs.com - www.viscount.it
Distribution for Italy: TITAN MUSIC S.A.
Strada Genghe di Atto, 80 - 47031 Acquaviva – Repubblica di San Marino
tel.[phone] - fax [phone]
e-mail: [e-mail] - Internet: www.viscount-organs.com - www.viscount.it