Hammond Sk PRO Reference manual

INTRODUCTION

Introduction2
INTRODUCTION
uBasic Hook-Up
All connections are found on the Accessory Panel on the back of the SK PRO.
tAC Power
Your Hammond SK PRO is shipped from the factory set for 120V.AC power. To connect the SK PRO
keyboard to A.C. power:
1. Locate the AC Power Cord that came with your SK PRO.
2. Plug the female end of the AC Power Cord into the receptacle on the SK PRO marked, “AC
IN.”
3. Plug the 3-pronged Power Cord into a grounded A.C. power outlet.
tAudio Connections
You can either:
1. Connect the SK PRO to an external sound source (amplifier, studio mixer, or sound
reinforcement direct box),or
2. Connect the SK PRO to a Leslie Speaker cabinet.
Connecting to an external sound source
1. Use two audio cables with 1/4" plugs on both ends of each cable.
2. Connect one end of each of the audio cables to the audio output connectors (marked LINE
OUT) on the Accessory Panel.
3. Connect the other ends of each cable to the female 1/4" audio input connectors of your sound
source.
If your amplifier has only a single (1) female 1/4" phono plug audio input, you can connect
one end of one cable to the L/MONO audio output connector on the SK PRO, and the other
end to the female 1/4" audio input connector of your amplifier.
Connecting a Leslie Speaker
The 11-pin Leslie socket on your SK PRO allows you to plug directly into any Leslie speaker having an 11-
pin interface. If you wish to use a Leslie Speaker with your SK PRO, the Leslie Speaker should be
connected before turning the power "ON." To do this:
1. Locate an 11-pin Leslie Connector Cable.
2. Plug one end of the Connector Cable into the receptacle on the Leslie Speaker.
3. Plug the other end of the Connector Cable into the 11-pin Leslie socket found on the
Accessory Panel of the SK PRO.
Both the Leslie connections are "keyed,” that is, each connection contains a notch which insures
that the pins properly match up.

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NOTE: The 11-pin Leslie socket on your SK PRO allows you to plug directly into any Leslie speaker having an
11-pin interface. Current models include the 2101, 3300, 122XB and 981. However, when plugging the SK
PRO into a single-channel Leslie cabinet such as a 3300, only the Drawbars will sound through the Leslie.
NOTE: To connect the SK PRO to a Leslie Speaker having a different pin configuration such as an older 6-pin
122 or 147, or a 9-pin cabinet such as the 760, 770 or 900 series cabinets, you will need an adapter kit and/or
Connector Cable. Contact your Hammond Dealer for more information regarding which adapter kit and/or cable
you may need.
tConnecting a Foot Switch
You can connect an optional foot switch such as the Hammond model FS-9H foot switch to
your SK PRO. Connect the foot switch plug to one of the jacks marked "FOOT SW" on the
back of the SK PRO.
NOTE: In order to insure proper operation of the Foot Switch, be sure to connect it when the power to the SK
PRO is “OFF.”
NOTE: The FOOT SW jack on your SK PRO is “TRS-compatible,” meaning that by using a Stereo “Y”
connector or “splitter,” more than one Foot Switch can be plugged into the same jack. You can also use a TRS
cable to connect a dual-momentary switch to one of the FOOT SW jacks. For a complete explanation of this,
consult the SPECIAL PERFORMANCE FEATURES chapter of this Guide.
tConnecting a Damper Pedal
To connect a Damper (piano sustain) Pedal, connect the plug from the pedal into the jack marked
"DAMPER" on the back of the SK PRO.
tConnecting an Expression Pedal
If you wish to use an Expression Pedal, connect the plug from the Expression Pedal into the EXP.PEDAL
jack. The Hammond EXP-50 / EXP-50J Expression Pedals are recommended.
tConnecting a MIDI Pedalboard
If you wish to use a Hammond MIDI Pedalboard, use a MIDI cable to connect the MIDI OUT port from the
Pedalboard to the MIDI IN port of the SK PRO.
NOTE: If you are using a Hammond Pedalboard, the MIDI Channel should be set to 3. The SK PRO is
automatically configured to transmit Pedal MIDI data on MIDI Channel 3. If you need further information, please
consult the Owner’s Manual for your Hammond Pedalboard.
tOther MIDI Connections
Your SK PRO can interface with a great number of MIDI-compatible devices. See the MIDI chapter of this
Guide for more information about MIDI connections and your Hammond SK PRO.
tConnecting a Set of Headphones
A stereo headphone jack is provided on the Accessory Panel next to the LINE OUT jacks so that you may
play or practice in privacy. Connect the plug from a set of stereo Headphones into the Headphone jack.
NOTE: Be sure that your headphone set has either a ¼” plug or an adapter for a ¼” plug.

Introduction4
uBasic Controls
The panel controls on the SK PRO include Drawbars, Rotary Controls and buttons. These controls allow
you to make adjustments and changes on the instrument.
tON / OFF Power Switch
The ON / OFF Power Switch is located at the rear of the instrument on the right side of the
Accessory Panel facing the keyboard When this switch is in the "ON" (pushed in at the top)
position, the Information Center Display as well as some LED's (Light Emitting Diodes)
will light up showing that the instrument is "ON."
NOTE: The SK PRO has an “AUTO POWER OFF” feature which automatically turns the power to the
instrument “OFF” if no keys or controls are used within a 30-minute period. See page 8 for more information
about this feature.
tMASTER VOLUME Rotary Control
The MASTER VOLUME Rotary Control is located on the extreme left of the Control Panel.
With this Rotary Control, you can control the total or maximum volume of the entire
instrument. Turn this control to the right to increase the total volume, and to the left to
decrease the total volume.
NOTE: If you have an Expression Pedal connected, it will express up to the amount determined by the setting
of the MASTER VOLUME Rotary Control as well as the Volume settings for each of the Voice Sections within
the Combinations. For more information about Combinations, consult the COMBINATIONS / PATCHES /
BUNDLES / FAVORITES chapter of this Guide.
tInformation Center Display
The Information Center Display is located in the center of the Control Panel.
The Information Center Display has three modes: (1) PLAY Mode, (2) MENU Mode and (3) FUNCTION
Mode.. The PLAY Mode allows you to graphically see Drawbar settings, Extra Voice settings, Patch
Numbers and Patch Names. The MENU Mode allows you to access the various change and edit the SK
PRO's software parameters such as Drawbar Voicing, MIDI parameters and other advanced functions.
NOTE: The PLAY and MENU Modes are covered in the INFORMATION CENTER DISPLAY chapter of this
Guide.

Introduction 5
tDrawbars
Drawbars are the heart and soul of the Hammond Sound.
The SK PRO has nine Drawbars, sometimes referred to as Tonebars. When the Keyboard SPLIT feature is
active, these same nine Drawbars are used to control the sound registrations for both UPPER Keyboard,
(left of the SPLIT Point) and LOWER KEYBOARD (right of the Split Point) as well as Pedal tones.
Pulling a Drawbar out (toward you) will increase the
volume in incremental steps from 0 (no sound) to 8
(maximum volume). Pushing the Drawbar back in (away
from you) decreases the volume of that Drawbar.
Please refer to the DRAWBARS & PERCUSSION section of
this Reference Guide for a complete explanation of
Hammond Drawbars.
tButtons
The button controls on the SK PRO have LEDS or lights
that will light up indicating "ON."
“OFF” “ON“ ” OFF“ ”ON”
NOTE: The buttons in the PIANO and ENSEMBLE Voice Sections do not all turn off, at least one LED in each
of these five Sections will always remain lighted.
NOTE: More detail about each of these sections is covered in later chapters of this Reference Guide.

Introduction6
uAdditional Controls
tOCTAVE / TRANSPOSE buttons
These buttons allow you to change the Octave of the selected Part as well as shift the musical key of the
entire instrument. This is explained in more detail in the SPECIAL PERFORMANCE FEATURES chapter of
this Guide starting on page 456.
tPitch Bend & Modulation Wheels
The Pitch Bend Wheel is located to the extreme left of the Keyboard. With it,
you can adjust the pitch range plus 12 half steps or minus 24 half-steps.
The Modulation Wheel is located just to the right of the Pitch Bend Wheel. It
has several functions that can be selected:
1. Send MIDI modulation data to a connected MIDI device.
2. Control the Overdrive Level.
3. Control Leslie rotor speeds.
NOTE: For more information about the Pitch Bend and Modulation Wheel
features, see the SPECIAL PERFORMANCE FEATURES chapter of this Guide as well as the chapters
describing the Voice Sections.
Moving either control forward (away from you) will increase the intensity of the corresponding control.
Moving either control downward (toward you) will decrease the corresponding control's level.
uUSB Ports
The USB Ports are located in the middle of the Accessory Panel.
tTO FLASH DRIVE
This Port is designed to accept a USB Flash Drive, which allows you to:
1. Save and Load Patches
2. Save and Load Custom Sets
3. Save and Load Setups,
4. Install software upgrades into the operating system,
For more information about the USB port, see USING THE USB PORTS.
tTO HOST
This Port will do the following:
1. Send and Receive Setup and System files.
1. Send and Receive MIDI data (UPPER, LOWER, PEDAL Internal Zones and System Exclusive
messages).
NOTE: The SK PRO is compliant with USB AUDIO Class 1.0, the generic device driver which comes
pre-installed on both PC and Mac computers. This means you can use the USB TO HOST Port to connect the
SK PRO to a computer and transmit and receive a MIDI data stream without an exclusive device driver.

Introduction 7
tPlaying the instrument
Although the SK PRO is a single-keyboard instrument, it can be made to function in a manner similar to an
instrument with two keyboards and a pedal keyboard, such as an organ. This is the reason for the
references to UPPER, LOWER and PEDAL on the instrument.
On an organ, the UPPER Keyboard is usually used for the melody, and is played with the right hand. The
LOWER Keyboard is usually used to provide accompaniment, or harmonic support for the melody and is
played by the left hand. The PEDAL Keyboard, or clavier, is used to play the bass notes and is most
commonly played by the left foot.
On the SK PRO, this playing style is replicated by partitioning or “splitting” the single 61-note keyboard
into two parts. The part played by the right hand is referred to as the UPPER Keyboard or Part, while the
part played by the left hand is referred to as the LOWER Keyboard or Part.
The SPLIT button, located on the left of the Control Panel, is used to divide the keyboard into
UPPER and LOWER Parts. Normally, the third “C” key counting from the left on the keyboard
marks the dividing point between the UPPER and LOWER Parts.
In addition, the 3PART ORGAN feature allows you instantly to convert the SK PRO into a
vintage Hammond Organ with UPPER, LOWER and PEDAL Parts automatically assigned. For
more information about the 3PART ORGAN feature, see the 3PART ORGAN chapter of this
Guide.
IMPORTANT NOTE: "C3" is the default Split point; however, you can relocate the Split point elsewhere
on the Keyboard. This is explained in a later chapter of this Guide.

Introduction8
IMPORTANT - PLEASE READ
uPOWER - AUTO OFF
The SK PRO has a special feature called AUTO POWER OFF which automatically turns the power to the
instrument “OFF” if no keys or buttons are pressed for 30 minutes. This is done for safety reasons and
under most normal conditions we do not recommend disabling this feature; however, you can select
whether or not the instrument will automatically turn “OFF” by doing the following procedure:
1. From any of the PLAY Mode screens, press the MENU/EXIT button once. The Information
Center Display should now look like this:
The “COMBINATION” box should be highlighted.
2. Press the PAGE “u” button two times. The “SOUND” box should be highlighted.
You are now in the SYSTEM Menu.
3. Press the DIRECTION “u” button once. The Information Center Display should now look
like this:

Introduction 9
4. Press the DIRECTION “q” button once. The Information Center Display should now look
like this:
5. Press the ENTER button. The Information Center Display should now look like this:
The data chart below shows the options you may select.
POWER - AUTO OFF
Description Function
30min The AC power to the instrument will turn “OFF” after 30 minutes have elapsed with
no keys or buttons being pressed.
Disable The instrument will turn “ON” or “OFF” with the AC Power Switch, but not turn
“OFF” automatically.
Turn the VALUE knob to make your selection.

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