Roland PK-25A User Manual

Owner’s Manual

Before using this unit,
carefully read the sections
entitled: “USING THE UNIT
SAFELY” (p. 2, 3) and
“Important Notes” (p. 4).
These sections provide
important information
concerning the proper
operation of the unit.
Additionally, in order to feel
assured that you have gained
a good grasp of every feature
provided by your new unit,
this Owner’s Manual should
be read in its entirety. The
manual should be saved and
kept on hand as a convenient
reference.

Thank you, and congratulations on your choice of the Roland PK-25A Pedal Keyboard.
In addition to the pedal keyboard, which greatly enhances enjoyment in playing the
organ, the PK-25A MIDI pedal keyboard unit also features an expression pedal that
lends precise and dynamic volume expression to performances, a foot switch that en­ables pedal control over a variety of Roland VK-88/VK-8 combo organ functions, and
a hold pedal for sustaining notes.

Features

●

Twenty five-note pedal keyboard and removable expression pedal

The PK-25A features a twenty five-note pedal keyboard for maximum enjoyment of
organ playing. The built-in expression pedal can be removed from the pedal keyboard
unit to make the unit more compact for transportation.

●

Foot switches for controlling the VK-88/VK-8

Two foot switches are built into the expression pedal. When the PK-25A is connected
to a Roland VK-88 or VK-8 combo organ, you can then switch settings of the Roland
VK-88 or VK-8 as you perform without removing your foot from the expression pedal
or your hands from the keyboard.

●

Hold pedal

A Hold pedal is provided. You can easily operate for additional expressive
possibilities when playing sustain-type sounds.

04122301 ’05-11-1N

*04122301-01 *

●

Single-cable connection to the VK-88

When connecting the PK-25A to the VK-88, the PK cable is the only connection
required–no need for MIDI cables, analog cables, or an AC adaptor. This makes setup
quick and easy.

●

Switching MIDI Channels and Octave Shift

The PK-25A also features a MIDI channel switching knob that allows you to match the
MIDI channel settings with other equipment when the PK-25A is connected to an
external MIDI device other than a Roland combo organ (VK Series). Furthermore, you
can use Octave Shift to change the pitch in octave increments.

Conventions used in this manual

Pages in this manual where you can find additional information are indicated like this: (p. **).

Copyright © 2005 ROLAND CORPORATION

All rights reserved. No part of this publication may be reproduced in any form without the writ­ten permission of ROLAND CORPORATION.

For the U.K.

IMPORTANT: THE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE.

As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying
the terminals in your plug, proceed as follows:
The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK.
The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED.
Under no circumstances must either of the above wires be connected to the earth terminal of a three pin plug.

USING THE UNIT SAFELY

BLUE:
BROWN:

NEUTRAL
LIVE

Used for instructions intended to alert
the user to the risk of death or severe
injury should the unit be used
improperly.

Used for instructions intended to alert
the user to the risk of injury or material
damage should the unit be used
improperly.

* Material damage refers to damage or

other adverse effects caused with
respect to the home and all its
furnishings, as well to domestic
animals or pets.

The symbol alerts the user to important instructions
or warnings.The specific meaning of the symbol is
determined by the design contained within the
triangle. In the case of the symbol at left, it is used for
general cautions, warnings, or alerts to danger.

The symbol alerts the user to items that must never
be carried out (are forbidden). The specific thing that
must not be done is indicated by the design contained
within the circle. In the case of the symbol at left, it
means that the unit must never be disassembled.

The ● symbol alerts the user to things that must be
carried out. The specific thing that must be done is
indicated by the design contained within the circle. In
the case of the symbol at left, it means that the power­cord plug must be unplugged from the outlet.

001

• Before using this unit, make sure to read the
instructions below, and the Owner’s Manual.

..........................................................................................................

002c

• Do not open (or modify in any way) the unit or its
AC adaptor.

..........................................................................................................

003

• Do not attempt to repair the unit, or replace parts
within it (except when this manual provides
specific instructions directing you to do so). Refer
all servicing to your retailer, the nearest Roland
Service Center, or an authorized Roland
distributor, as listed on the “Information” page.

..........................................................................................................

004

• Never use or store the unit in places that are:

• Subject to temperature extremes (e.g., direct

sunlight in an enclosed vehicle, near a heating
duct, on top of heat-generating equipment); or
are

• Damp (e.g., baths, washrooms, on wet floors);

or are

• Humid; or are

• Exposed to rain; or are

• Dusty; or are

• Subject to high levels of vibration.

..........................................................................................................

007

• Make sure you always have the unit placed so it is
level and sure to remain stable. Never place it on
stands that could wobble, or on inclined surfaces.

..........................................................................................................

008c

• Be sure to use only the AC adaptor supplied with
the unit. Also, make sure the line voltage at the
installation matches the input voltage specified on
the AC adaptor’s body. Other AC adaptors may
use a different polarity, or be designed for a
different voltage, so their use could result in
damage, malfunction, or electric shock.

..........................................................................................................

009

• Do not excessively twist or bend the power cord,
nor place heavy objects on it. Doing so can
damage the cord, producing severed elements
and short circuits. Damaged cords are fire and
shock hazards!

..........................................................................................................

011

• Do not allow any objects (e.g., flammable
material, coins, pins); or liquids of any kind
(water, soft drinks, etc.) to penetrate the unit.

..........................................................................................................

2

012c

• Immediately turn the power off, remove the AC
adaptor from the outlet, and request servicing by
your retailer, the nearest Roland Service Center,
or an authorized Roland distributor, as listed on
the “Information” page when:

• The AC adaptor or the power-supply cord has

been damaged; or

• If smoke or unusual odor occurs

• Objects have fallen into, or liquid has been

spilled onto the unit; or

• The unit has been exposed to rain (or otherwise

has become wet); or

• The unit does not appear to operate normally

or exhibits a marked change in performance.

..........................................................................................................

013

• In households with small children, an adult
should provide supervision until the child is
capable of following all the rules essential for the
safe operation of the unit.

..........................................................................................................

014

• Protect the unit from strong impact.
(Do not drop it!)

..........................................................................................................

015

• Do not force the unit’s power-supply cord to
share an outlet with an unreasonable number of
other devices. Be especially careful when using
extension cords—the total power used by all
devices you have connected to the extension
cord’s outlet must never exceed the power rating
(watts/amperes) for the extension cord. Excessive
loads can cause the insulation on the cord to heat
up and eventually melt through.

..........................................................................................................

016

• Before using the unit in a foreign country, consult
with your retailer, the nearest Roland Service
Center, or an authorized Roland distributor, as
listed on the “Information” page.

103b

• At regular intervals, you should unplug the AC
adaptor and clean it by using a dry cloth to wipe
all dust and other accumulations away from its
prongs. Also, disconnect the power plug from the
power outlet whenever the unit is to remain
unused for an extended period of time. Any
accumulation of dust between the power plug
and the power outlet can result in poor insulation
and lead to fire.

..........................................................................................................

104

• Try to prevent cords and cables from becoming
entangled. Also, all cords and cables should be
placed so they are out of the reach of children.

..........................................................................................................

106

• Never climb on top of, nor place heavy objects on
the unit.

..........................................................................................................

107d

• Never handle the AC adaptor body, or its output
plugs, with wet hands when plugging into, or
unplugging from, an outlet or this unit.

..........................................................................................................

108b

• Before moving the unit, disconnect the AC
adaptor and all cords coming from external
devices.

..........................................................................................................

109b

• Before cleaning the unit, turn off the power and
unplug the AC adaptor from the outlet (p. 7).

..........................................................................................................

110b

• Whenever you suspect the possibility of lightning
in your area, disconnect the AC adaptor from the
outlet.

..........................................................................................................

118b

• Keep the included knob bolts in a safe place out of
children’s reach, so there is no chance of them
being swallowed accidentally.

..........................................................................................................

101b

• The unit and the AC adaptor should be located so
their location or position does not interfere with
their proper ventilation.

..........................................................................................................

102d

• Always grasp only the output plug or the body of
the AC adaptor when plugging into, or
unplugging from, this unit or an outlet.

..........................................................................................................

3

Important Notes

In addition to the items listed under “USING THE UNIT SAFELY” on page 2 and 3, please read and observe the following:

Power Supply

301

• Do not connect this unit to same electrical outlet that is

being used by an electrical appliance that is controlled by
an inverter (such as a refrigerator, washing machine,
microwave oven, or air conditioner), or that contains a
motor. Depending on the way in which the electrical
appliance is used, power supply noise may cause this unit
to malfunction. If it is not practical to use a separate
electrical outlet, connect a power supply noise filter
between this unit and the electrical outlet.

302

• The AC adaptor will begin to generate heat after long

hours of consecutive use. This is normal, and is not a
cause for concern.

307

• Before connecting this unit to other devices, turn off the

power to all units. This will help prevent malfunctions
and/or damage to speakers or other devices.

Placement

352a

• This device may interfere with radio and television

reception. Do not use this device in the vicinity of such
receivers.

352b

• Noise may be produced if wireless communications

devices, such as cell phones, are operated in the vicinity of
this unit. Such noise could occur when receiving or initi­ating a call, or while conversing. Should you experience
such problems, you should relocate such wireless devices
so they are at a greater distance from this unit, or switch
them off.

354b

• Do not expose the unit to direct sunlight, place it near

devices that radiate heat, leave it inside an enclosed
vehicle, or otherwise subject it to temperature extremes.
Also, do not allow lighting devices that normally are used
while their light source is very close to the unit (such as a
piano light), or powerful spotlights to shine upon the
same area of the unit for extended periods of time.
Excessive heat can deform or discolor the unit.

355b

• When moved from one location to another where the

temperature and/or humidity is very different, water
droplets (condensation) may form inside the unit. Damage
or malfunction may result if you attempt to use the unit in
this condition. Therefore, before using the unit, you must
allow it to stand for several hours, until the condensation
has completely evaporated.

356

• Do not allow rubber, vinyl, or similar materials to remain

on the unit for long periods of time. Such objects can
discolor or otherwise harmfully affect the finish.

358

• Do not allow objects to remain on top of the keyboard or

pedal board. This can be the cause of malfunction, such as
keys ceasing to produce sound.

359

• Do not paste stickers, decals, or the like to this instrument.

Peeling such matter off the instrument may damage the
exterior finish.

360

• Depending on the material and temperature of the surface
on which you place the unit, its rubber feet may discolor
or mar the surface.
You can place a piece of felt or cloth under the rubber feet
to prevent this from happening. If you do so, please make
sure that the unit will not slip or move accidentally.

Maintenance

401b

• To clean the unit, use a dry, soft cloth; or one that is
slightly dampened. Try to wipe the entire surface using an
equal amount of strength, moving the cloth along with the
grain of the wood. Rubbing too hard in the same area can
damage the finish.

402

• Never use benzine, thinners, alcohol or solvents of any
kind, to avoid the possibility of discoloration and/or
deformation.

Additional Precautions

553

• Use a reasonable amount of care when using the unit’s
buttons, sliders, or other controls; and when using its jacks
and connectors. Rough handling can lead to malfunctions.

556

• When connecting / disconnecting all cables, grasp the
connector itself—never pull on the cable. This way you
will avoid causing shorts, or damage to the cable’s
internal elements.

558b

• To avoid disturbing your neighbors, try to keep the unit’s
volume at reasonable levels (especially when it is late at
night).

559a

• When you need to transport the unit, package it in the box
(including padding) that it came in, if possible. Otherwise,
you will need to use equivalent packaging materials.

4

Index

USING THE UNIT SAFELY..............................................................................2

Important Notes..................................................................................................4

Names and Functions ........................................................................................6

Connections .........................................................................................................8

Attaching the Expression Pedal...................................................................8

Connecting to the VK-88...............................................................................9

Connecting to the VK-8...............................................................................10

Connecting to External MIDI Devices Other than the VK-88/VK-8....11

Setting the MIDI Channel....................................................................12

Changing the Pitch (Octave Shift)......................................................12

Troubleshooting................................................................................................13

Error Messages.............................................................................................13

Specifications.....................................................................................................14

MIDI Implementation ......................................................................................15

MIDI Implementation Chart ...........................................................................16

5

Names and Functions

Rear Panel

11 12 13

5 6

7

Cord Hook

8

9 10

3

4

2

1

1.

2.

3.

MEMO

4.

MEMO

5.

Pedal Keyboard

The PK-25A features a 25-note pedal keyboard that is ideal for organ performance.

Expression Pedal

Advancing the pedal will increase the volume, and returning the pedal toward yourself
will decrease the volume. For instructions on connecting it, refer to page 8.

Foot Switches

Two foot switches are built on the sides of the expression pedal.
You can control the connected devices by pressing the foot switch.

For more information on the foot switch functions when the PK-25A is connected to a VK-88 or
VK-8, refer to “Connecting to the VK-88” (p. 9) or “Connecting to the VK-8” (p. 10).

Hold Pedal

Pressing down on the Hold pedal holds (sustains) the sound from the connected device.

For more information on the foot switch functions when the PK-25A is connected to a VK-88 or
VK-8, refer to “Connecting to the VK-88” (p. 9) or “Connecting to the VK-8” (p. 10).

POWER Switch

This turns the power of the PK-25A on/off.

6

MEMO

If the PK cable is used to connect the PK-25A to the VK-88, the PK-25A will turn on/off in
tandem with the VK-88. The power switch of the PK-25A need not be switched on/off.

6.

Cord Hook

The cord of the supplied
AC Adaptor

To the Power Outlet

DC IN Jack

Connect the supplied AC adaptor to this jack.

To prevent the inadvertent disruption of power to
your unit (should the plug be pulled out acciden­tally), and to avoid applying undue stress to the
AC adaptor jack, anchor the power cord using the
cord hook, as shown in the illustration.

7.

8.

9.

NOTE

10.

11.

OCT SHIFT (Octave Shift) Switch

When the PK-25A is connected to an external MIDI device other than a VK-88 or VK-8,
this switch allows you to transpose the pitch in octave units to match that of the connect­ed device (p. 12).

MIDI CH (MIDI Channel Switching) Knob

This knob allows you to match the MIDI channel settings with other equipment when
the PK-25A is connected to an external MIDI device other than a VK-88 or VK-8 (p. 12).

PK OUT Connector

Use the PK cable that is supplied with the VK-88 to connect this connector to the VK-88.
After connecting to the VK-88, make sure to set the PEDAL KEYBOARD [SELECT]
switch on the VK-88’s rear panel to PK IN (VK-88 Owner’s Manual, p. 22).

Do not attempt to use any cable other than the PK cable, since this will cause malfunctions. This connector
cannot be used with the VK-8.

MIDI Connectors

Connect a VK-8 or external MIDI device here.
Use a MIDI cable (sold separately) to make the connections.

HOLD OUT (Hold Pedal output) Jack

This jack outputs the on/off data from the hold pedal.
Use a monaural cable (phone-phone) (sold separately) to make the connections.

NOTE

12.

NOTE

NOTE

13.

NOTE

If a cable is connected to this jack, Hold data will not be sent from the PK OUT connector or the MIDI
OUT connector.

EXPRESSION OUT (Expression pedal output) Jack

This jack outputs the data from the expression pedal.
Use a stereo cable (phone-phone) (sold separately) to make the connections.

The expression pedal is designed only for Roland/Boss products. Connecting it to products made by
manufacturers other than Roland or Boss may cause malfunctions.

If a cable is connected to this jack, Expression data will not be output from the PK OUT connector or
MIDI OUT connector.

FOOT SW-L OUT/FOOT SW-R OUT (Foot switch L output /Foot switch
R output) Jacks

These jacks output on/off data from the foot switches.
Use a monaural cable (phone-phone) (sold separately) to make the connections.

If a cable is connected to these jacks, on/off data from the foot switches will not be output from the PK OUT
connector or the MIDI OUT connector.

7

Connections

2

Attaching the Expression Pedal

The PK-25A is shipped with the expression pedal detached. Before connecting the PK­25A to another device, please attach the expression pedal.

NOTE

When attaching or detaching the expression pedal, be careful not to step on a knob bolt. When removing
the knob bolts, place them out of the reach of children. If a knob bolt is accidentally swallowed, consult a
doctor immediately.

To prevent malfunction and/or damage to speakers or other devices, always turn down the volume, and
turn off the power on all devices before making any connections.

1. Connect the expression pedal cable

to the connector in the upper part of
the PK-25A.

. While being careful not to pinch the

cable, place the expression pedal on
the PK-25A.

3. Use the three supplied knob bolts to

fasten the expression pedal, making
sure that the bolt holes are aligned.

Supplied Knob Bolts
(three point)

Knob bolt

View from Rear

NOTE

The connector in the upper part of the PK-25A is only for connecting the supplied expression pedal.
Connecting this to any device other than the PK-25A’s own expression pedal could result in malfunction.

8

Connecting to the VK-88

Use the PK cable that is supplied with the VK-88 to connect the VK-88 and PK-25A.

MEMO

The supplied AC adaptor is not used. The PK-25A will be turned on/off by the power switch of
the VK-88, regardless of the position of the PK-25A’s own power switch.

PK IN Jack

PK cable that is supplied
with the VK-88

PK OUT Jack

The VK-88 includes a PK cable that is longer than

*

the PK cable supplied with the PK-25A. If you are
connecting the PK-25A to a VK-88, we recommend
using the PK cable that is supplied with the VK-88.

1.

2.

3.

NOTE

4.

5.

6.

NOTE

MEMO

Make sure that the VK-88’s power is turned off.

Set the PEDAL KEYBOARD [SELECT] switch (located on the rear panel
of the VK-88) to the PK IN position.

Use the PK cable that is supplied with the VK-88 to connect the VK­88’s PK IN connector to the PK-25A’s PK OUT connector.

Once the connections have been completed, turn on power to your various devices in the order specified. By
turning on devices in the wrong order, you risk causing malfunction and/or damage to speakers and other
devices.

As explained on the VK-88 Owner’s Manual, turn on the power of the
VK-88.

Make sure that the indicator on the rear panel of the PK-25A is lit.

Play the pedal keyboard. If you hear the pedal part of the VK-88,
connections are complete.

This unit is equipped with a protection circuit. A brief interval (a few seconds) after power up is required
before the unit will operate normally.

If connecting the PK-25A to a VK-88, set the OCT SHIFT (Octave Shift) switch to the “0” position.

9

MEMO

You can select the part that will be sustained when you press the Hold pedal.

→

HOLD PEDAL ASSIGN (VK-88 Owner’s Manual, p. 80)

MEMO

A variety of functions can be assigned to each foot switch (L/R).

→

PK FOOT L ASSIGN (VK-88 Owner’s Manual, p. 68)

→

PK FOOT R ASSIGN (VK-88 Owner’s Manual, p. 68)

Connecting to the VK-8

Use a MIDI cable to connect the VK-8 and PK-25A.

MIDI Cable

MIDI OUT Connector

MIDI PEDAL IN Connector

10

1.

2.

3.

NOTE

4.

5.

6.

Make sure that the power of the VK-8 and PK-25A is turned off.

Use a MIDI cable to connect the VK-8’s MIDI PEDAL IN connector to the
PK-25A’s MIDI OUT connector.

Connect the appropriate end of the AC adaptor to the DC IN jack. Then
connect the other end to a standard AC outlet.

Once the connections have been completed, turn on power to your various devices in the order specified. By
turning on devices in the wrong order, you risk causing malfunction and/or damage to speakers and other
devices.

Turn on the power of the PK-25A, and make sure that the indicator on
the PK-25A’s rear panel is lit.

As described in the VK-8 Owner’s Manual, turn on the power of the VK-

8.

Make sure that the Sub-Keyboard Function is on (VK-8 Owner’s
Manual p. 58).

7.

Play the pedal keyboard. If the pedal part is heard from the VK-8,
connections are complete.

NOTE

MEMO

MEMO

MEMO

MEMO

This unit is equipped with a protection circuit. A brief interval (a few seconds) after power up is required
before the unit will operate normally.

Once you have made connections as described above, you can use the switches and pedals to
control the following functions.

•

Expression pedal: Control the volume of all parts of the Organ, and the Other Tones.

•

Foot switch L: Switch the rotary effect between slow/fast.

•

Foot switch R: Turn the rotary effect brake on/off.

•

Hold pedal: Hold (sustain) the sound of the Organ voice and Other Tones.

If connecting the PK-25A to a VK-8, set the OCT SHIFT (Octave Shift) switch to the “0” position.

When the PK-25A’s FOOT SW-L OUT/FOOT SW-R OUT/HOLD OUT jack is connected to the
VK-8’s CONTROL PEDAL jack, you can assign a variety of functions to the foot switch. Use a
mono cable (phone-phone) to make connections.

→

Assigning a Function to the Control Pedal (VK-8 Owner’s Manual, p. 40)

When the PK-25A’s EXPRESSION OUT jack is connected to the VK-8’s EXPRESSION PEDAL
jack, you can use the expression pedal to simultaneously control the volume of all parts of the
Organ and the Other Tones. Use a stereo cable (phone-phone) to make connections.

→

Using the Expression Pedal (VK-8 Owner’s Manual, p. 39)

When the PK-25A’s HOLD OUT jack is connected to the VK-8’s HOLD PEDAL jack, you can
play can sustain the sound by pressing the pedal. Use a monaural cable (phone-phone) to make
connections.

→

Using the Hold Pedal to Sustain the Sound (VK-8 Owner’s Manual, p. 42)

MEMO

NOTE

The PK-25A provides a “MIDI Merge” feature, which allows you to have the MIDI messages
received at MIDI IN be combined with the MIDI messages produced by playing the PK-25A
itself. The resulting merged data stream is then transmitted from the MIDI OUT connector.

Turn off the power of the PK-25A after turning off the power of VK-8.

Connecting to External MIDI Devices Other than the VK-88/VK-8

Use a MIDI cable to connect external MIDI devices to the PK-25A.

MEMO

1.

2.

MEMO

The PK-25A provides a “MIDI Merge” feature, which allows you to have the MIDI messages
received at MIDI IN be combined with the MIDI messages produced by playing the PK-25A
itself. The resulting merged data stream is then transmitted from the MIDI OUT connector.

Make sure that the power of the external device and PK-25A is turned
off.

Use a MIDI cable to connect the external device’s MIDI IN connector to
the PK-25A’s MIDI OUT connector.

If necessary, connect the FOOT SW-L OUT, FOOT SW-R OUT, and/or HOLD OUT jacks to the
corresponding connectors on the external MIDI device.

11

NOTE

Once the connections have been completed, turn on power to your various devices in the order specified. By
turning on devices in the wrong order, you risk causing malfunction and/or damage to speakers and other
devices.

3.

4.

5.

6.

7.

NOTE

Turn on the power of the PK-25A, and make sure that the indicator on
the PK-25A’s rear panel is lit.

Turn on the power to the external MIDI device according to the
instructions in the owner’s manual for the device.

Set the PK-25A’s MIDI channel.

→

“Setting the MIDI Channel” (Next section)

Set the MIDI channel on the external MIDI device to match the channel
set for the PK-25A.

Play the pedal keyboard. If the pedal part is heard from the VK-8,
connections are complete.

Turn off the power of the PK-25A after turning off the power of the external MIDI device.

Setting the MIDI Channel

When connecting the PK-25A to external MIDI devices other than the VK-88 or VK-8, set
the PK-25A’s MIDI channel and the MIDI channel on the external MIDI device to the
same channel.

1.

MEMO

Turn the MIDI CH (MIDI Channel Switching) knob on the PK-25A’s rear
panel to switch the MIDI channel.

Setting the MIDI channel is unnecessary when the PK-25A is connected to a VK-88 or VK-8.

Changing the Pitch (Octave Shift)

You can change the pitch in octave increments, allowing you to match the pitch to that
of the connected device.

1.

MEMO

Switch the Octave Shift setting with the OCT SHIFT (Octave Shift)
switch on the PK-25A’s rear panel.

Set the switch to the “+1” position to raise the pitch one octave or to the “-1” position to
lower the pitch one octave.

If connecting the PK-25A to a VK-88 or VK-8, set the OCT SHIFT (Octave Shift) switch to the “0”
position.

12

Appendix

Troubleshooting

If the PK-25A does not function as you expect, please check the following points first. If this does not resolve the
problem, contact your dealer or a nearby Roland service center.

◆

●

The power (indicator) does not come on when I turn on the
power switch.

◆

If the PK-25A is connected to a device that cannot use the
PK cable (such as the VK-8), the supplied AC adaptor
must be used. After connecting the AC adaptor correctly,
turn the power switch on.

●

The power (indicator) does not turn on/off when I turn the
PK-25A’s power switch on/off.

◆

The PK-25A’s power is switched on/off in ta
ndem with the VK-88 when it is connected to the VK-88
using the PK cable that is supplied with the VK-88. Make
sure that the VK-88’s power is turned on and the PK
cable is connected correctly.

●

The foot switch, hold pedal, and/or expression pedal do
not operate correctly.

◆

Make sure that the expression pedal cable is correctly
connected to the connector on the upper part of the PK­25A (p. 7).

◆

If the PK cable is used to connect the PK-25A to the VK-88

•

Make sure that the cable is connected correctly (p. 7).

•

Check the settings of the switches or pedals.
Foot switch: VK-88 Owner’s Manual, p. 68 (PK FOOT
L ASSIGN/PK FOOT R ASSIGN)
Hold pedal: VK-88 Owner’s Manual, p. 80 (HOLD
PEDAL ASSIGN)
Expression pedal: VK-88 Owner’s Manual,
p. 82 (ORCHESTRAL TONES EXPRESSION)

◆

If a MIDI cable is used to connect the PK-25A to the VK-8

•

Check that the MIDI cable is connected correctly (p. 8).

•

If you wish to use the expression pedal to control the
volume of the Other Tones, use a stereo cable (phone­phone) to connect the PK-25A’s EXPRESSION OUT
jack to the VK-8’s EXPRESSION PEDAL jack, or the
PK-25A’s EXPRESSION OUT jack to the VK-8’s
CONTROL PEDAL jack. (VK-8 Owner’s Manual, p.
40–41)

If MIDI and analog cables are used to connect the PK­25A to the VK-8

•

Make sure that the polarity of the VK-8’s CONTROL
PEDAL jack is set to “Standard.” (VK-8 Owner’s
Manual, p. 56)

•

Make sure that a function is assigned to the VK-8’s
CONTROL PEDAL jack. (VK-8 Owner’s Manual, p.
40–41)

•

Use a stereo cable (phone-phone) when connecting the
PK-25A’s EXPRESSION OUT jack to the VK-8’s
EXPRESSION PEDAL jack, or the PK-25A’s
EXPRESSION OUT jack to the VK-8’s CONTROL
PEDAL jack.

●

Cannot assign a function to the foot switch.

◆

When the PK-25A is connected to the VK-8 without using
analog cables, functions other than Rotary Slow/Fast
(foot pedal L) and Rotary Brake (foot pedal R) cannot be
assigned.

●

No sound plays.

◆

When connecting to any external MIDI device other than
the VK-88 or VK-8, you must match the PK-25A’s MIDI
channel to the MIDI channel set for the connected device.

◆

If connecting the PK-25A to a VK-8, switch the Sub­Keyboard Function to ON. (VK-8 Owner’s Manual, p. 56)

●

Sounds are not playing correctly.

◆

Confirm whether or not the Octave Shift switch is set
correctly. If the PK-25A is connected to a VK-88 or VK-8,
set the Octave Shift switch to the “0” position.

Error Messages

In the following situations, the indicator of the rear panel of PK-25A will blink for several seconds.

Situation 1: It is possible that the MIDI cable has been

disconnected or is damaged.

Action 1: Check the MIDI cable connections.

Situation 1: MIDI data could not be received correctly.
Action 1: If the indicator continues blinking for an

extended period of time, there is a problem
with the content of the MIDI data.

13

Specifications

Pedalboard: 25 keys

• Control: Expression Pedal

• Connectors: PK OUT Jack

• Power: DC 9 V: AC adaptor, or supplied from VK-88 via PK cable

Foot Switch (L, R)
Damper (Hold) Switch
MIDI CH (MIDI Channel Switching) Knob
OCT SHIFT (Octave Shift) Switch
Power Switch

MIDI Connectors (IN, OUT)
HOLD OUT Jack
EXPRESSION OUT Jack
FOOT SW-R OUT Jack
FOOT SW-L OUT Jack
DC IN Jack

• Current Draw: 120 mA (DC 9 V)

• Dimensions: 1068 (W) x 885 (D) x 283 (H) mm
42-1/16 (W) x 34-7/8 (D) x 11-3/16 (H) inches

• Weight: 29.0 kg / 63 lbs 15 oz

• Accessories: Owner’s Manual
AC Adaptor
PK cable

• Options: MIDI Cable, Analog Cable (Stereo, Monaural)

* In the interest of product improvement, the specifications and/or appearance of this unit are

subject to change without prior notice.

14

MIDI Implementation

Model: PK-25A (MIDI Pedal Keyboard)

Date: Oct. 20, 2005

Version: 1.00

1. Recognized Receive Data

■

System Realtime Messages

Status

FEH

* By receiving an Active Sensing message, this unit enters the mode timing the interval

between incoming MIDI messages. If the interval exceeds 500 ms, this unit transmits

Note Off messages corresponding to the transmitted notes being On, and returns from

this mode.

2. Transmitted Data

■

Channel Voice Messages

●

Note off

Status

8nH kkH 40H

n = MIDI channel: 0H - FH (ch.1 - 16)

kk = note number: 18H - 48H (24 - 72)

●

Note on

Status

9nH kkH 78H

n = MIDI channel: 0H - FH (ch.1 - 16)

kk = note number: 18H - 48H (24 - 72)

●

Control Change

❍

Expression (Controller number 11)

Status

BnH 0BH vvH

n = MIDI channel: 0H - FH (ch.1 - 16)

vv = expression: 00H - 7FH (0 - 127)

* If the EXPRESSION OUT jack on the rear panel is in use, this unit doesn’t send

Expression message via MIDI.

2nd byte 3rd byte

2nd byte 3rd byte

2nd byte 3rd byte

■

System Realtime Message

●

Active sensing

Status

FEH

* This will be transmitted constantly at intervals of approximately 250 ms.

■

System Exclusive Messages

“Data Set 1 (DT1)” to control VK-8/7 is the only System Exclusive messages transmitted by

PK-25A.

●

Data Set1 DT1

Status

F0H 41H, 10H, 00H, 08H, 12H, aaH, F7H

Byte Remarks

F0H Exclusive status

41H ID number (Roland)

10H device ID

00H model ID

08H model ID (VK-7)

12H command ID (DT1)

aaH address MSB: The most significant byte of the address

bbH address

ccH address

ddH address LSB: The least significant byte of the address

eeH data: The actual data to be transmitted.

sum checksum

F7H EOX (End Of Exclusive)

* This unit sends the following messages to control ROTARY SOUND of the VK-8/7.

F0 41 10 00 08 12 02 00 10 3D ... F7

(Rotary Speed: Transmit by FOOT SW-L)

F0 41 10 00 08 12 02 00 10 3E ... F7

(Rotary Rotation: Transmit by FOOT SW-R)

Data byte Status

bbH, ccH, ddH, eeH, sum

❍

General Purpose Controller 3 (Controller number 18)

Status

BnH 12H vvH

n = MIDI channel: 0H - FH (ch.1 - 16)

vv = control value: 00H, 7FH (0, 127)

* This message will be sent by operating a foot switch locating left side of the expression

pedal.

* If a FOOT SW-L OUT jack on the rear panel is in use, the unit doesn’t send this message

via MIDI.

❍

General Purpose Controller 4 (Controller number 19)

Status

BnH 13H vvH

n = MIDI channel: 0H - FH (ch.1 - 16)

vv = control value: 00H, 7FH (0, 127)

* This message will be sent by operating a foot switch locating right side of the expression

pedal.

* If a FOOT SW-R OUT jack on the rear panel is in use, the unit doesn’t send this message

via MIDI.

❍

Hold 1 (Controller number 64)

Status

BnH 40H vvH

n = MIDI channel: 0H - FH (ch.1 - 16)

vv = control value: 00H, 7FH (0, 127)

* If a HOLD OUT jack on the rear panel is in use, the unit doesn’t send Hold 1 message via

MIDI.

2nd byte 3rd byte

2nd byte 3rd byte

2nd byte 3rd byte

15

MIDI Implementation Chart

MIDI FOOTPEDAL

Date : Oct. 20, 2005

Model PK-25A

Function…

Basic
Channel

Mode

Note
Number :

Velocity

After
Touch

Pitch Bend x

Default
Changed

Default
Messages
Altered

True Voice

Note ON
Note OFF

Key’s
Ch’s

MIDI Implementation Chart

1 – 16
1 – 16

Mode 3
x
****************

24 – 72
****************

O (9n, v=120)
O (8n, v=64)

x
x

11

O

18

O

19

O

64

O

x
x

x
x

x
x

x
x

x
x

x

x
x

x
x

Version : 1.00

RemarksRecognizedTransmitted

Expression
General Purpose 3
General Purpose 4
Hold 1

Control
Change

Prog
Change

System Exclusive

System
Common

System
Real Time

Aux
Message

: True #

SongPos
SongSel
Tune

Clock
Commands

All Sound OFF
Reset All Controllers

Local ON/OFF
All Notes OFF
Active Sensing
Reset

x

****************

O *1

x
x
x

x
x

x
x
x
x

O

x

x
x

x

x
x
x

x
x

x
x
x
x

O

x

Notes

Mode 1 : OMNI ON, POLY

Mode 3 : OMNI OFF, POLY

16

*1 For controlling Rotary Sound of the VK-8/7

Mode 2 : OMNI ON, MONO

Mode 4 : OMNI OFF, MONO

O : Yes

x : No

Information When you need repair service, call your nearest Roland Service Center or authorized Roland

distributor in your country as shown below.

AFRICA

EGYPT

Al Fanny Trading Office

9, EBN Hagar A1 Askalany
Street,
ARD E1 Golf, Heliopolis,
Cairo 11341, EGYPT
TEL: [phone]

REUNION

Maison FO - YAM Marcel

25 Rue Jules Hermann,
Chaudron - BP79 97 491
Ste Clotilde Cedex,
REUNION ISLAND
TEL: [phone]

SOUTH AFRICA

That Other Music Shop(PTY)Ltd.

11 Melle St., Braamfontein,
Johannesbourg,
SOUTH AFRICA
TEL: [phone]
FAX: [phone]

Paul Bothner(PTY)Ltd.

Royal Cape Park, Unit 24
Londonderry Road, Ottery 7800
Cape Town, SOUTH AFRICA

TEL: [phone]

ASIA

CHINA

Roland Shanghai Electronics
Co.,Ltd.

5F. No.1500 Pingliang Road
Shanghai 200090, CHINA
TEL: [phone]

Roland Shanghai Electronics
Co.,Ltd.
(BEIJING OFFICE)

10F. No.18 3 Section Anhuaxili
Chaoyang District Beijing
100011 CHINA
TEL: [phone]

Roland Shanghai Electronics
Co.,Ltd.
(GUANGZHOU OFFICE)

2/F., No.30 Si You Nan Er Jie
Yi Xiang, Wu Yang Xin Cheng,
Guangzhou 510600, CHINA
TEL: [phone]

HONG KONG

Tom Lee Music Co., Ltd.
Service Division

22-32 Pun Shan Street, Tsuen
Wan, New Territories,
HONG KONG
TEL: [phone]

Parsons Music Ltd.

8th Floor, Railway Plaza, 39
Chatham Road South, T.S.T,
Kowloon, HONG KONG
TEL: [phone]

INDIA

Rivera Digitec (India) Pvt. Ltd.

409, Nirman Kendra
Mahalaxmi Flats Compound
Off. Dr. Edwin Moses Road,
Mumbai-400011, INDIA
TEL: [phone]

INDONESIA

PT Citra IntiRama

J1. Cideng Timur No. 15J-150
Jakarta Pusat
INDONESIA
TEL: [phone]

KOREA

Cosmos Corporation

1461-9, Seocho-Dong,
Seocho Ku, Seoul, KOREA
TEL: [phone]

MALAYSIA

Roland Asia Pacific Sdn. Bhd.

45-1, Block C2, Jalan PJU 1/39,
Dataran Prima, 47301 Petaling
Jaya, Selangor, MALAYSIA
TEL: [phone]

PHILIPPINES

G.A. Yupangco & Co. Inc.

339 Gil J. Puyat Avenue
Makati, Metro Manila 1200,
PHILIPPINES
TEL: [phone]

SINGAPORE

SWEE LEE MUSIC
COMPANY PTE. LTD.

150 Sims Drive,
SINGAPORE 387381
TEL: [phone]

TAIWAN

ROLAND TAIWAN
ENTERPRISE CO., LTD.

Room 5, 9fl. No. 112 Chung
Shan N.Road Sec.2, Taipei,
TAIWAN, R.O.C.
TEL: [phone]

THAILAND

Theera Music Co. , Ltd.

330 Soi Verng NakornKasem,
New Road, Sumpantawongse,
Bangkok 10100, THAILAND
TEL: [phone]

VIETNAM

SAIGON MUSIC
DISTRIBUTOR
(TAN DINH MUSIC)

138 Tran Quang Khai Street
Dist. 1, Ho Chi Minh City
VIETNAM
TEL: [phone]

AUSTRALIA/
NEW ZEALAND

AUSTRALIA/
NEW ZEALAND

Roland Corporation
Australia Pty.,Ltd.

38 Campbell Avenue
Dee Why West. NSW 2099
AUSTRALIA

For Australia
Tel: [phone]
For New Zealand
Tel: [phone]

CENTRAL/LATIN
AMERICA

ARGENTINA

Instrumentos Musicales S.A.

Av.Santa Fe 2055
(1123) Buenos Aires
ARGENTINA
TEL: [phone]

BARBADOS

A&B Music Supplies LTD

12 Webster Industrial Park
Wildey, St.Michael, Barbados
TEL: [phone]

BRAZIL

Roland Brasil Ltda.

Rua San Jose, 780 Sala B
Parque Industrial San Jose
Cotia - Sao Paulo - SP, BRAZIL
TEL: [phone]

CHILE

Comercial Fancy II S.A.

Rut.: 96.919.420-1
Nataniel Cox #739, 4th Floor
Santiago - Centro, CHILE
TEL: [phone]

COLOMBIA

Centro Musical Ltda.

Cra 43 B No 25 A 41 Bododega 9
Medellin, Colombia
TEL: [phone]

COSTA RICA

JUAN Bansbach Instrumentos
Musicales

Ave.1. Calle 11, Apartado 10237,
San Jose, COSTA RICA
TEL: [phone]

CURACAO

Zeelandia Music Center Inc.

Orionweg 30
Curacao, Netherland Antilles
TEL:[phone]

DOMINICAN REPUBLIC

Instrumentos Fernando Giraldez

Calle Proyecto Central No.3
Ens.La Esperilla
Santo Domingo,
Dominican Republic
TEL:[phone]

ECUADOR

Mas Musika

Rumichaca 822 y Zaruma
Guayaquil - Ecuador
TEL:[phone]

EL SALVADOR

OMNI MUSIC

75 Avenida Norte y Final
Alameda Juan Pablo II,
Edificio No.4010 San Salvador,
EL SALVADOR
TEL: [phone]

GUATEMALA

Casa Instrumental

Calzada Roosevelt 34-01,zona 11
Ciudad de Guatemala
Guatemala
TEL:[phone]

HONDURAS

Almacen Pajaro Azul S.A. de C.V.

BO.Paz Barahona
3 Ave.11 Calle S.O
San Pedro Sula, Honduras
TEL: [phone]

MARTINIQUE

Musique & Son

Z.I.Les Mangle
97232 Le Lamantin
Martinique F.W.I.
TEL: [phone]

Gigamusic SARL

10 Rte De La Folie
97200 Fort De France
Martinique F.W.I.
TEL: [phone]

MEXICO

Casa Veerkamp, s.a. de c.v.

Av. Toluca No. 323, Col. Olivar
de los Padres 01780 Mexico
D.F. MEXICO
TEL: [phone]

NICARAGUA

Bansbach Instrumentos
Musicales Nicaragua

Altamira D'Este Calle Principal
de la Farmacia 5ta.Avenida
1 Cuadra al Lago.#503
Managua, Nicaragua
TEL: [phone]

PANAMA

SUPRO MUNDIAL, S.A.

Boulevard Andrews, Albrook,
Panama City, REP. DE
PANAMA
TEL: [phone]

PARAGUAY

Distribuidora De
Instrumentos Musicales

J.E. Olear y ESQ. Manduvira
Asuncion PARAGUAY
TEL: [phone]

PERU

Audionet

Distribuciones Musicales SAC
Juan Fanning 530
Miraflores
Lima - Peru
TEL: [phone]

TRINIDAD

AMR Ltd

Ground Floor
Maritime Plaza
Barataria Trinidad W.I.
TEL: [phone]

URUGUAY

Todo Musica S.A.

Francisco Acuna de Figueroa
1771
C.P.: 11.800
Montevideo, URUGUAY
TEL: [phone]

VENEZUELA

Instrumentos Musicales
Allegro,C.A.

Av.las industrias edf.Guitar
import
#7 zona Industrial de Turumo
Caracas, Venezuela
TEL: [phone]

EUROPE

AUSTRIA

Roland Elektronische
Musikinstrumente HmbH.
Austrian Office

Eduard-Bodem-Gasse 8,
A-6020 Innsbruck, AUSTRIA
TEL: [phone]

BELGIUM/FRANCE/
HOLLAND/
LUXEMBOURG

Roland Central Europe N.V.

Houtstraat 3, B-2260, Oevel
(Westerlo) BELGIUM
TEL: [phone]

CZECH REP.

K-AUDIO

Kardasovska 626.
CZ-198 00 Praha 9,
CZECH REP.
TEL: [phone]

DENMARK

Roland Scandinavia A/S

Nordhavnsvej 7, Postbox 880,
DK-2100 Copenhagen
DENMARK
TEL: [phone]

FINLAND

Roland Scandinavia As, Filial
Finland

Elannontie 5
FIN-01510 Vantaa, FINLAND
TEL: [phone]

GERMANY

Roland Elektronische
Musikinstrumente HmbH.

Oststrasse 96, 22844
Norderstedt, GERMANY
TEL: [phone]

GREECE

STOLLAS S.A.
Music Sound Light

155, New National Road
Patras 26442, GREECE
TEL: [phone]

HUNGARY

Roland East Europe Ltd.

Warehouse Area ‘DEPO’ Pf.83
H-2046 Torokbalint,
HUNGARY
TEL: [phone]

IRELAND

Roland Ireland

G2 Calmount Park, Calmount
Avenue, Dublin 12
Republic of IRELAND
TEL: [phone]

ITALY

Roland Italy S. p. A.

Viale delle Industrie 8,
20020 Arese, Milano, ITALY
TEL: [phone]

NORWAY

Roland Scandinavia Avd.
Kontor Norge

Lilleakerveien 2 Postboks 95
Lilleaker N-0216 Oslo
NORWAY
TEL: [phone]

POLAND

MX MUSIC SP.Z.O.O.

UL. Gibraltarska 4.
PL-03664 Warszawa POLAND
TEL: [phone]

PORTUGAL

Roland Iberia, S.L.
Portugal Office

Cais das Pedras, 8/9-1 Dto
4050-465, Porto, PORTUGAL
TEL: [phone]

ROMANIA

FBS LINES

Piata Libertatii 1,
535500 Gheorgheni,
ROMANIA
TEL: [phone]

RUSSIA

MuTek

Dorozhnaya ul.3,korp.6
117 545 Moscow, RUSSIA
TEL: [phone]

SPAIN

Roland Iberia, S.L.

Paseo García Faria, 33-35
08005 Barcelona SPAIN
TEL: [phone]

SWEDEN

Roland Scandinavia A/S
SWEDISH SALES OFFICE

Danvik Center 28, 2 tr.
S-131 30 Nacka SWEDEN
TEL: [phone]

SWITZERLAND

Roland (Switzerland) AG

Landstrasse 5, Postfach,
CH-4452 Itingen,
SWITZERLAND
TEL: [phone]

UKRAINE

TIC-TAC

Mira Str. 19/108
P.O. Box 180
295400 Munkachevo,
UKRAINE
TEL: [phone]

UNITED KINGDOM

Roland (U.K.) Ltd.

Atlantic Close, Swansea
Enterprise Park, SWANSEA
SA7 9FJ,
UNITED KINGDOM
TEL: [phone]

MIDDLE EAST

BAHRAIN

Moon Stores

No.16, Bab Al Bahrain Avenue,
P.O.Box 247, Manama 304,
State of BAHRAIN
TEL: [phone]

CYPRUS

Radex Sound Equipment Ltd.

17, Diagorou Street, Nicosia,
CYPRUS
TEL: [phone]

IRAN

MOCO INC.

No.41 Nike St., Dr.Shariyati Ave.,
Roberoye Cerahe Mirdamad
Tehran, IRAN
TEL: [phone]

ISRAEL

Halilit P. Greenspoon & Sons
Ltd.

8 Retzif Ha'aliya Hashnya St.
Tel-Aviv-Yafo ISRAEL
TEL: [phone]

JORDAN

MUSIC HOUSE CO. LTD.
FREDDY FOR MUSIC

P. O. Box 922846
Amman 11192 JORDAN
TEL: [phone]

KUWAIT

EASA HUSAIN AL-YOUSIFI
& SONS CO.

Abdullah Salem Street,
Safat, KUWAIT
TEL: [phone]

LEBANON

Chahine S.A.L.

Gerge Zeidan St., Chahine
Bldg., Achrafieh, P.O.Box: 16­5857
Beirut, LEBANON
TEL: [phone]

OMAN

TALENTZ CENTRE L.L.C.

Malatan House No.1
Al Noor Street, Ruwi
SULTANATE OF OMAN
TEL: [phone]

QATAR

Al Emadi Co. (Badie Studio &
Stores)

P.O. Box 62, Doha, QATAR
TEL: [phone]

SAUDI ARABIA

aDawliah Universal
Electronics APL

Corniche Road, Aldossary
Bldg., 1st Floor, Alkhobar,
SAUDI ARABIA

P.O.Box 2154, Alkhobar 31952
SAUDI ARABIA
TEL: [phone]

SYRIA

Technical Light & Sound
Center

Rawda, Abdul Qader Jazairi St.
Bldg. No. 21, P.O.BOX 13520,
Damascus, SYRIA
TEL: [phone]

TURKEY

ZUHAL DIS TICARET A.S.

Galip Dede Cad. No.37
Beyoglu - Istanbul / TURKEY
TEL: [phone]

U.A.E.

Zak Electronics & Musical
Instruments Co. L.L.C.

Zabeel Road, Al Sherooq Bldg.,
No. 14, Grand Floor, Dubai,
U.A.E.
TEL: [phone]

NORTH AMERICA

CANADA

Roland Canada Music Ltd.
(Head Office)

5480 Parkwood Way
Richmond B. C., V6V 2M4
CANADA
TEL: [phone]

Roland Canada Music Ltd.
(Toronto Office)

170 Admiral Boulevard
Mississauga On L5T 2N6
CANADA
TEL: [phone]

U. S. A.

Roland Corporation U.S.

5100 S. Eastern Avenue
Los Angeles, CA 90040-2938,
U. S. A.
TEL: [phone]

As of December 10, 2005 (ROLAND)

17

For EU Countries

This product complies with the requirements of European Directive 89/336/EEC.

For the USA

FEDERAL COMMUNICATIONS COMMISSION

RADIO FREQUENCY INTERFERENCE STATEMENT

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of 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 instructions, may cause harmful interference to radio communications. However, there is no guarantee
that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user is encouraged 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.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may cause undesired operation.

Unauthorized changes or modification to this system can void the users authority to operate this equipment.
This equipment requires shielded interface cables in order to meet FCC class B Limit.

For Canada

NOTICE

This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.

18

AVIS

Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.