Pearl River PRK-300 User manual

1
Precautions
Location
Using the unit in the following locations can result in a mal-
function.
• In direct sunlight
• Locations of extreme temperature or humidity
• Excessively dusty or dirty locations
• Locations of excessive vibration
• Closetomagneticelds
Power supply
Please connect the designated AC adapter to an AC outlet of
the correct voltage. Do not connect it to an AC outlet of volt-
age other than that for which your unit is intended.
Interference with other electrical
devices
Radios and televisions placed nearby may experience recep-
tion interference. Operate this unit at a suitable distance from
radios and televisions.
Handling
To avoid breakage, do not apply excessive force to the switch-
es or controls.
Care
If the exterior becomes dirty, wipe it with a clean, dry cloth.
Do not use liquid cleaners such as benzene or thinner, or
cleaningcompoundsorammablepolishes.
Keep this manual
After reading this manual, please keep it for later reference.
Keeping foreign matter out of your
equipment
Never set any container with liquid in it near this equipment.
If liquid gets into the equipment, it could cause a breakdown,
re,orelectricalshock.
Be careful not to let metal objects get into the equipment.
If something does slip into the equipment, unplug the AC
adapter from the wall outlet. Then contact your nearest dealer
or the store where the equipment was purchased.
*
All product names and company names are the trademarks
or registered trademarks of their respective owners.
Notice regarding disposal (EU only)
When this “crossed-out wheeled bin” symbol is
displayed on the product, owner’s manual, bat-
tery, or battery package, it signifies that when
you wish to dispose of this product, manual,
package or battery you must do so in an ap-
proved manner. Do not discard this product,
manual,packageorbaeryalongwithordinary
household waste. Disposing in the correct manner will
prevent harm to human health and potential damage
to the environment. Since the correct method of dis-
posal will depend on the applicable laws and regula-
tions in your locality, please contact your local admin-
istrativebodyfordetails.Ifthebaerycontainsheavy
metals in excess of the regulated amount, a chemical
symbol is displayed below the “crossed-out wheeled
bin”symbolonthebaeryorbaerypackage.
IMPORTANT NOTICE TO CONSUMERS
This product has been manufactured according to strict
specifications and voltage requirements that are ap-
plicable in the country in which it is intended that this
product should be used. If you have purchased this
product via the internet, through mail order, and/or via
a telephone sale, you must verify that this product is
intended to be used in the country in which you reside.
WARNING: Use of this product in any country other
than that for which it is intended could be dangerous
and could invalidate the manufacturer’s or distributor’s
warra nt y.
Please also retain your receipt as proof of purchase
otherwiseyourproductmaybedisqualiedfromthe
manufacturer’s or distributor’s warranty.

2
Table of Contents
Introduction------------------------------------------------------------ 2
Main features ---------------------------------------------------- 2
Parts and their functions ------------------------------------- 3
Preparation and demo performances------------------ 4
Before you begin playing ------------------------------------- 4
Listening to demo performances --------------------------- 5
Playing the PRK-300---------------------------------------------- 6
Playing a single sound (Single mode)--------------------- 6
Playing two sounds at the same time
(Layer mode) ---------------------------------------------------- 6
Performing with another person
(Partner mode) -------------------------------------------------- 7
Using pedals ----------------------------------------------------- 7
E󰀨ects ------------------------------------------------------------- 7
The metronome ------------------------------------------------- 8
Other functions------------------------------------------------------ 9
Touch settings --------------------------------------------------- 9
Transpose -------------------------------------------------------- 9
Function mode -------------------------------------------------- 9
MIDI----------------------------------------------------------------------- 12
What is MIDI? ------------------------------------------------- 12
What can you do with MIDI? ----------------------------- 12
Connections --------------------------------------------------- 12
MIDI function mode ------------------------------------------ 12
Appendix -------------------------------------------------------------- 14
Troubleshooting - --------------------------------------------- 14
Specications-------------------------------------------------- 14
Assembling instruction -------------------------------------- 15
Attention ------------------------------------------------------- 15
Other notice---------------------------------------------------- 15
Assembly instruction ---------------------------------------- 15
After checking the installation----------------------------- 16
MIDI implementation chart---------------------------------- 17
Introduction
Main features
Thirty high-quality sounds
The PRK-300 provides 30 built-in expressive high-quality
sounds, including a stereo concert grand piano. You can use
Layer mode to simultaneously play two sounds at once, or
you can use Partner mode, which allows two players to play
the same range, one on each half of the keyboard.
E󰀨ects
The PRK-300 provides 3 built-in digital effects. These effects
can adjust the brightness of the tone (Brilliance), simulate the
natural ambience of a concert hall (Reverb) and add richness
to the sound (Chorus).
Pedal e󰀨ects
As on an acoustic piano, the PRK-300 has three pedals that
control the damper, sostenuto and soft effects. The damper
pedal and soft pedal will respond to half-pedaling, allowing
you to vary the depth of the effect by how far you’re pressing
the pedal. When pressing the damper pedal, you can also
add the damper resonance to the classic piano and the grand
piano tone (bank 1 and 2 of Piano 1).
Metronome
The built-in metronome allows you to select the time
signature,tempo, and volume, and you can even choose a bell
sound as the accent.
Touch control
You can choose from three different settings to adjust how the
sound will respond to your keyboard playing dynamics.
Temperaments
For authentic performance of a wide range of music, the
PRK-300 allows you to select from nine temperaments,
including the equal temperament, pure temperaments
(major and minor), classical temperaments (Kirnberger and
Werckmeister) as well as temperaments used with Middle
Eastern and Indian folk music. When an acoustic piano
sound is selected, the stretched tuning used on pianos is
automatically selected.
Adjustable pitch
The Transpose function lets you change the pitch of the piano,
and the Pitch Control function allows you to make finely
tuned adjustments.
Two headphone jacks
Two headphone jacks are provided, allowing two people to
listen simultaneously.
LINE OUT jack
An amplified speaker or recording equipment can be
connected by using the LINE OUT jack.
MIDI capabilities
The PRK-300 supports the MIDI protocol, the standard
that allows music data to be transferred between musical
instruments and computers. MIDI allows two or more devices
to control or be controlled by each other, and also allows you
to use the PRK-300 as a 16-part multitimbral tone generator.

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6
order 1, 2, 3, 1, ..., and the corresponding LED to the right
of the BANK button will light up.
For example, to select the electric grand piano sound,press
the PIANO2 button,after which its button lights up.
Then,press the BANK button twice to select bank 3
(electric grand piano); the LED below and to the right of
the BANK button will light up.
In addition, the bank selected for a sound button re-
mains the same, even if a different sound button is
pressed.
Each time the PRK-300 is turned on, the sound in bank 1
is selected for all sound button.
Playing two sounds at the same time(Layer mode)
You can play two sounds at the same time on the key-board.
This is called the Layer mode.
Simultaneously press the two sound buttons for the sounds to
be played at the same time.
The two selected sound buttons will light up.
The leftmost or uppermost selected sound button is layer 1,
and the other (rightmost or lowermost) one is layer 2 (see
the diagram at the below).
For example, if E.PIANO1 and ORGAN1 are selected,
E.PIANO1 is layer 1 and ORGAN1 is layer 2. In order to
use sounds in different banks, first select the banks in the
Single mode for the sound buttons to be pressed.
For example, to play by layering the grand piano and
jazz organ 2 sounds, select bank 1 (grand piano) for the
PIANO1 button and bank 2 (jazz organ 2) for the ORGAN1
button, and then press both buttons simultaneously.
When selecting Layer mode, the total number of voices
that can play at the same time is reduced, depending on the
total number of oscillators used by the selected sounds. (refer
to “About maximum polyphony” on page 14.)
Sounds in different banks for the same sound button (
grand piano and jazz piano for the PIANO1 button) cannot be
selected.
Returning to the Single mode
To return to Single mode, just press a single sound selection
button.
Layer mode settings
In Layer mode, the volume balance between sounds can be
adjusted, the octave for each sound can be shifted, and the
damper pedal can be enabled or disabled for each sound. (refer
to “Function mode” on page 9)
2
1
1
2
2
1
Layer2
Layer1
Playing a single sound (Single mode)
You can select a sound from the thirty sounds supplied with
the instrument (10 sounds x 3 banks).
Sound button Bank Sound name #
PIANO 1 1Classic Piano 3
2Grand Piano 3
3Jazz Piano 2
PIANO 2 1Live Piano 2
2Honky-Tonk 2
3Elec.Grand 1
E .PI A N O 1 1St a g e E .pi a n o 1
2Bright E.Piano 2
3Tremolo EP 3
E .PI A N O 2 1D ig .E .P ia n o1 2
26 0 's E .P i a n o 1
3Dig.E.Piano2 2
HAR PSI/CLAV. 1Harpsichord 2
2Clav 1
3Synth Clav 2
VIBES/GUITAR 1Vibraphone 1
2Marimba 1
3 Acoustic Guitar 2
ORGAN 1 1Jazz Organ1 2
2Jazz Organ2 2
3Jazz Organ3 2
ORGAN 2 1Pipe Organ1 2
2Pipe Organ2 2
3Positive Organ 2
STRINGS 1Strings 2
2Cinema Strings 2
3 Analog Strings 2
CHOIR 1Aah Choir 2
2Ooh Voices 2
3Classical Choir 3
(#) These columns show the number of oscillators per voice
that are used by each sound. (refer to “About maximum
polyphony” on page 14.)
1. Press the sound button for the sound that you want to
play.
The selected button will light up.
2. Press the BANK button to select one of the three
sounds.sounds.
Each press of the BANK button switches the bank in the
Playing the PRK-300

7
E󰀨ects
Brilliance
This effect changes the brightness of the tone.
The setting can be changed by holding down the BRIL-
LIANCE button and pressing the UP or DOWN button
beside the display.
The setting appears in the display with 3 producing a brighter
sound and 1 producing a less bright sound.
The same setting is applied to all sounds and remains applied
until the PRK-300 is turned off. When the instrument is
turned on, the default setting 2 is selected.
Brilliance cannot be turned off.
Reverb
This effect adds ambience and depth to the sound, producing
the sense of performing in a concert hall. As a factory default,
the on/off setting for this effect as well as this effect’s setting
are saved with each sound.
Each press of the REVERB button turns th e reverb on (b
utton lights up) or o󰀨( button turns o󰀨)
To change this setting, hold down the REVERB button
and press the UP or DOWN button beside the display.
The setting appears in the display with 3 producing a deep
reverb effect and 1 producing a light reverb effect.
If a different sound is selected or if the PRK-300 is turned off, the
on/off setting for this effect as well as this effect’s setting return to
their factory defaults (default settings).
Chorus
Chorus adds modulation to the sound, producing an ex-
pansively rich sound. As a factory default, the on/off setting
for this effect as well as this effect’s setting are saved
with each sound.
Each press of th e CHORUS butt on turns th e Chorus
e󰀨ect o n ( button lights up) or o󰀨 ( button turns o󰀨).
To change this setting, hold down the CHORUS button
and press the UP or DOWN button beside the display.
The setting appears in the display with 3 producing a deep
chorus effect and 1 producing a light chorus effect.
If a different sound is selected or if the PRK-300 is turned off,
the on/off setting for this effect as well as this effect’s setting
return to their factory defaults (default settings).
Performing with another person (Partner mode)
Two people can play in the same range with the keyboard
divided in half between them. This is called the Partner mode.
1. Press the FUNCTION button.
The FUNCTION and PIANO1 buttons will light up.
2. Press the E .PIANO1 button.
The E.PIANO1 sound button lights up, and oFF appears in
the display.
3. Press the UP button beside the display to select on.
Partner mode is turned on, and the PIANO1 sound is used
for both the left and right sides of the keyboard.
While the Partner mode is ON, a dot in the lower right
of the display appears.
The right side of the keyboard, from E4 to C8, produces
sounds in a range two octaves lower (E2–C6).
The left side of the keyboard, from A0 to Eb4, produces
sounds in a range two octaves higher (A2–Eb6).
4. To exit Partner mode, press the DOWN button beside
the display to select oFF.
5. Press the FUNCTION button.
The FUNCTION button turns off.
In Partner mode, the sound for the left and right sides can be
changed, and the volume can be adjusted. For details, refer to
“Partner mode settings” on page 10.
Using pedals
The PRK-300 has three pedals; damper, sostenuto, and soft.
You can use the pedals to make your playing more expressive
and realistic.
Soft pedal(left)
Pressing this pedal will make the tone softer. You can control
the softness of the tone depending on how far down you press
the pedal (“half-pedaling”).
Select pedal(center)
Pressingthispedalwillapplythedampereectonlytothe
notes that are already being held down on the keyboard. Only
thesenoteswillbetsustained.Thedampereectwillnotbe
applied to any additional notes that you play while holding
down the Select pedal.
Sustain pedal(right)
Pressing this pedal will sustain the sound, producing a richly
resonant decay. In addition, you can change the applied
conditions of the damper according to the depth that the tone
pedal of piano 1 and 2 is pressed. (“half-pedaling”).
In Layer mode, you can select the sound(s) where you
want to apply the pedal. (refer to “Specifying layer
pedals” on page 11)
In Partner mode (see page 10), the damper effect can be
applied independently by both players.
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Partner mode
Pitches A2 to Eb6 for the
player on the left side Pitches E2 to C6 for the
player on the right side

8
Touch settings
The keyboard sensitivity, or touch, can be programmed.
To change the setting, hold down the TOUCH button and
press the UP or DOWN button beside the display.
Display Touch sensitivity
1 Light. Loud notes can be produced even by
playing lightly.
2Normal. Normal piano touch.
3 Heavy. Loud notes can be produced only by
playing very hard.
When the instrument is turned on, the touch setting is
reset to Normal.
The settings are applied to all sounds.
Transpose
In some cases, a song may be written in a difficult key (e.g.,
many black keys), or you may wish to shift the pitch to
match another instrument or vocalist. In such cases, you
can transpose (shift the pitch) so that you can use an easier
fingering, or use the same familiar fingering to play at a
different pitch. This is called the Transpose function.
For example if you transpose upward by one semitone,
playing the notes shown at the lower left will produce the
pitches shown at the right.
When the instrument is turned on, the transposing is
reset.
While holding down the TRANSPOSE button, press the
keyboard key (F#6–F7) for the desired transposition.
If a keyboard key other than C7 is pressed, the TRANS-POSE
button lights up to indicate that the keyboard is transposed.
The pitch of the entire keyboard is transposed according
to the pitch of the pressed keyboard key in relation to C7.
To return to the original pitches, hold down the TRANSPOSE
button and press the C7 key. The TRANSPOSE button turns
off, and transposition is canceled.
Selecting a bell for the accent
1. Hold down the METRONOME button until the Met-
ronome settings mode is entered.
2. Press the E.PIANO1 button,and the accent sound
setting will appear in the display.
3. Select the setting with the UP or DOWN button
beside the display.
The setting range consists of oFF (no accent sound), on1
(emphasized sound for the accent beat) and on2 (bell
sound for the accent beat); the default setting is oFF.
4. Press the METRONOME button to exit the Metronome
settings mode.
Specifying the tempo (Metronome settings
mode)
1. Hold down the METRONOME button until the Met-
ronome settings mode is entered.
2. Press the E.PIANO2 button, and the tempo will appear
in the display.
3. Specify the setting with the UP or DOWN button that’s
located beside the display.
The setting range is q = 40–240; the default setting is 120.
To return to the default settiing, simultaneously press the
UP and DOWN buttons.
4. Press the METRONOME button to exit the Metro-
nome settings mode.
Selecting the Metronome Sound
1. Hold down the METRONOME button until the Met-
ronome settings mode is entered.
2. Press the HARPSI/CLAV button,and the metronome
sound setting will appear in the display.
3. Specify the setting with the UP or DOWN button that’s
located beside the display.
The setting range consists of 1 (acoustic) and 2 (electronic
sound); the default setting is 1.
4. Press the METRONOME button to exit the Metro-
nome settings mode.
The metronome
The PRK-300 is equipped with a metronome, which can be
changed to a bell sound, which is convenient for practicing.
Turning on/o󰀨 the metronome
Press the METRONOME button. The
button lights up, and the metronome
starts.
To stop the metronome, press the METRONOME button
again. The button turns off.
Specifying the tempo
When the tempo appears in the display
(default setting of 120), regardless of
whether the metronome is turned
on or off, the tempo can be specified
with the UP and DOWN buttons beside the display.
The setting range is q = 40–240.
To return to the default setting, simultaneously press the
UP and DOWN buttons.
Selecting the time signature
1. Hold down the METRONOME button until the Met-
ronome settings mode is entered.
The METRONOME button blinks, the PIANO1 sound
button lights up, and the time signature (04) appears in
the display.
When the Metronome settings mode is entered, the
time signature setting normally appears.
2. To select the time signature after changing other
settings in the Metronome settings mode, press the
PIANO1 button.
3. Select the setting with the UP or DOWN button beside
the display.
The setting range consists of 02 (2/4), 03 (3/4), 04 (4/4)
and 06 (6/4); the default setting is 04.
To return to the default setting, simultaneously press
the UP and DOWN buttons.
4. Press the METRONOME button to exit the Metro-
nome settings mode.
Adjusting the metronome volume
1. Hold down the METRONOME button until the
Metronome settings mode is entered.
2. Press the PIANO2 button, and the volume will appear
in the display.
3. Specify the setting with the UP or DOWN button that’s
located beside the display.
The setting range is 1–13; the default setting is 10.
To return to the default setting, simultaneously press
the UP and DOWN buttons.
4. Press the METRONOME button to exit the Metro-
nome settings mode.
3
2
3
1,4
2
1,4
3
3
3
2
3
1,4
3
2
3
1,4
3
2
3
1,4
2
1,4
3
3
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2
3
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PRK-300
PRK-300
PRK-300
PRK-300
PRK-300
PRK-300
PRK-300

9
key Effect
F#6–B 6 6– 1 semitones below
C7 Standard pitch
C#7–F 7 1– 5 semitones higher
Function mode
The temperament as well as other pitch settings can be
specified from the Function mode.
Setting procedure for functions in the Function mode.
1. Press the FUNCTION button.
The FUNCTION and PIANO1 buttons light up.
2. Press the sound button corresponding to the
desired
The current setting appears in the display.
3. Specify the desired setting.
4. After specifying the desired settings, press the
FUNCTION button to return to the mode for playing.
The FUNCTION button turns off.
When the PRK-300 is turned off, all functions, except the
auto power off function, return to their default settings.
The settings are applied to all sounds.
Fine tuning
In order to adapt the PRK-300 pitch to that of another
instrument, you can adjust the pitch in steps of 0.5 Hz over a
range of A4 = 427.5–452.5 Hz .
27.5–52.5 appears in the display.
The standard pitch is A = 440 Hz, and the default setting is
40.0.
1. When you enter the Function mode, the PIANO1
sound button lights up.
When the Function mode is entered, the pitch setting
normally appears.
2. To specify the pitch after changing other settings in
the Function mode, press theP IANO1 button.
3. Specify the setting with the UP or DOWN button
beside the display.
Simultaneously press the UP and DOWN buttons to
return to 440 Hz.
Touch settings
The keyboard sensitivity, or touch, can be programmed.
To change the setting, hold down the TOUCH button and
press the UP or DOWN button beside the display.
Display Touch sensitivity
1 Light. Loud notes can be produced even by
playing lightly.
2Normal. Normal piano touch.
3 Heavy. Loud notes can be produced only by
playing very hard.
When the instrument is turned on, the touch setting is
reset to Normal.
The settings are applied to all sounds.
Transpose
In some cases, a song may be written in a difficult key (e.g.,
many black keys), or you may wish to shift the pitch to
match another instrument or vocalist. In such cases, you
can transpose (shift the pitch) so that you can use an easier
fingering, or use the same familiar fingering to play at a
different pitch. This is called the Transpose function.
For example if you transpose upward by one semitone,
playing the notes shown at the lower left will produce the
pitches shown at the right.
When the instrument is turned on, the transposing is
reset.
While holding down the TRANSPOSE button, press the
keyboard key (F#6–F7) for the desired transposition.
If a keyboard key other than C7 is pressed, the TRANS-POSE
button lights up to indicate that the keyboard is transposed.
The pitch of the entire keyboard is transposed according
to the pitch of the pressed keyboard key in relation to C7.
To return to the original pitches, hold down the TRANSPOSE
button and press the C7 key. The TRANSPOSE button turns
off, and transposition is canceled.
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Other functions
Light
Normal
Heavy
Loud
Quiet
Quiet Playing
strength Loud
Loudness