Boston DSP-488 User manual

Digital Piano
User’s Manual

Your digital piano is a high-quality digital piano with 88 standard
touch sensitivity keyboard and combines the most advanced PCM
tone generation technology. This digital piano lets you record your
performances. In order to obtain maximum performance and enjoyment,
please read this manual thoroughly while trying out the various
features described.
Thanks For Using Our Digital Piano

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Panel Control
Connection
Basic Operation
Using Line Out/In Jacks
Using Midi Out Jacks
Phones jack
Sustain Pedal(supplied)
Double Pedal(optional)
3-Foot Peadl(optional)
DC IN
Power Switch
Adjust the Volume
Demo Play
Voice
Selecting a Voice
SUSTAIN Mode
[K.Mode] Mode
TOUCH Button
TEMPO Button
Function
Dual
Dual Voice
OTS
Split and Chord Point
Local
Transpose
Tune
Pan
Octave
Volume
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Memory
Reverb
Chorus
Reverb and Chorus Depth
MIDI In
MIDI Main/Left/Dual
Auto Accompaniment
Selecting a Style
Start a Style
Chord Button
Synchro Button
Intro/Ending Button
Fill In Button
Adjusting the Accompaniment Volume
Metronome Button
Registration Memory
Recording
Record
Listen to your Recording
Clear
Factory Set
Appendix
Auto Accompaniment Fingering
Percussion Voice List
Voice List
Style List
MIDI Implementation Chart
Specifications
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Contents

ACC.VOL TEMPO TOUCH K.MODE METRONOME
CHORD SYNCHRO
INTRO/
ENDING
START/
STOP FILL IN 1 FILL IN 2
M1 M2
M3 M4
FUNCTION
ENTER
4 5 6 7 8
910 11 12 13 14
15
16
17
DATA CONTROL
-
+
VOICE/STYLE
SUSTAIN
PIANO ORGAN GUITAR BASS ENSEMBLE RECORD PLAY DEMO
MELODY 2MELODY 1ACCOMP.
8 BEAT BALLAD DANCE DISCO
BRASS LEAD SYNTH EFFECT PERC.
SWING&JAZZ COUNTRY LATIN
R&B WALTZ
18 19
20
21
22
23 24 25 26 27 28
16 BEAT
CAUTION:TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER OR BACK DO NOT EXPOSE THE APPLIANCE TO RAIN OR MOISTURE NO USER-SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
DIGITAL PIANO MODEL: DSP-488 POWER SUPPLY: DC 12 Volts, 2200mA
CENTER POSITIVE RINGWAY TECH (JIANGSU) CO., LTD.
101 HANJIANG WEST ROAD, CHANGZHOU, JIANGSU, CHINA
MADE IN CHINA
USB TO H OST PEDA L LIN E OUT L INE IN PHO NES
DC 12V
MID I OUT
3 PED AL
CON TRO LLE R
-
29 31 32 33
PHO N E SPED A L
USB TO HOST
MID I O U T LIN E O U T
DC1 2 V
34
30
2
LIN E I N
1
2
3
MASTER VOLUME
MIN MAX
POWE R
ACC.VOL TEMPO TOUCH K.MODE METRONOME
CHORD SYNCHRO
INTRO/
ENDING
START/
STOP FILL IN 1 FILL IN 2
FUNCTION
ENTER
SPLIT
HARMONY
FULL KEYB.
TWIN
DATA CONTROL
-
+
VOICE/STYLE
SUSTAIN
PIANO ORGAN GUITAR BASS ENSEMBLE RECORD PLAY DEMO
MELODY 2MELODY 1ACCOMP.
8 BEAT BALLAD DANCE DISCO
SWING&JAZZ
BRASS LEAD SYNTH EFFECT PERC.
R&B COUNTRY LATIN WALTZ
16 BEAT
Panel Contents

3
Top Panel
1. Power On/Off
2. MASTER VOLUME
3. LCD DISPLAY
4. [ACC.VOL] Button
5. [TEMPO] Button
6. [TOUCH] Button
7. [K.MODE] Button
8. [METRONOME] Button
9. [CHORD] Button
10. [SYNCHRO] Button
11. [INTRO/ENDING] Button
12. [START/STOP] Button
13. [FILL IN 1] Button
14. [FILL IN 2] Button
15. [MEMORY] Button
[M1-M4] Buttons
16. [FUNCTION] Button
17. [ENTER] Button
18. [DATA CONTROL] Knob
19. [+/-] Buttons
20. [VOICE/STYLE] Button
21. [SUSTAIN] Button
22.VOICE and STYLE SELECT
23. [RECORD] Button
24. [PLAY] Button
25. [DEMO] Button
26. [ACCOMP.] Button
27. [MELODY 1] Button
28. [MELODY 2] Button
Rear
29
Panel
. MIDI OUT Jacks
30. USB TO HOST Jacks
31. PEDAL Jack
32. LINE OUT /IN Jacks
33. PHONES Jack
34. DC 12V Jack
Panel Contents

4
Using Line Out/In Jacks
Using Midi Out Jacks
MIDI (Musical Instrument Digital Interface) is a world-standard communica-
tion interface which allows electronic musical instruments to communicate with
each other, by sending and receiving compatible note, program change and other
types of MIDI data.
NOTE
MIDI OUT Transmits MIDI data to another MIDI device.
MIDI OUT
MIDI IN
Plug a set of stereo headphone into the phones jack, and the
internal speaker system is automatically shut off when the
headphone is plugged.
PHONES
Never use headphones in high volume, as it may hurt your ears.
Phones jack
NOTE
Connect the external sound system to the Line In jack. The audio signal from
the external sound system can be mixed with the sound of your piano. This
function is convenient when you want to play along with a favourite song.
The Line Out jack can be used to of the piano to a
keyboard amplifier, stereo sound system, mixing console or tape recorder.
transmit the audio signal
Connection

5
Sustain Pedal(supplied)
The foot pedal included with your digital piano will cause piano key sounds to
decay slowly as if they were being held down. A piano-style pedal may optionally
be used. The jack will auto-detect the polarity of the sustain pedal.
PEDAL
Ensure the piano is turned off before connecting the pedal.Otherwise, it will affect
the piano sound.
As standard, the pedal will affect the note playing after pressed. To change polarity,
hold the foot pedal down during power up.
NOTE
Double Pedal(optional)
This digital piano can be used with a Double pedal.
Soft Pedal(left): The Soft Pedal controls the sound volume. Press the pedal to
decrease the output sound volume.
Sustain(right): It performs the same function as the damper pedal on an actual
acoustic piano, letting you sustain the sound of the voices even
after releasing your fingers from the keys.
The jack will auto-detect the polarity of the pedal.
Soft Sustain
As standard, the pedal will affect the note playing after pressed. To change polarity,
hold the foot pedal down during power up.
NOTE
3-Foot Pedal(optional)
This digital piano can be used with a 3-Foot pedal.
Connect the plug of the foot pedal unit to the pedal jack in the button panel.

6
DC IN
Connection for the included DC power adapter. Please use only the provided adapter.
SOSTENUTO
SOFT
SUSTAIN
Sostenuto Pedal (Center):
the sostenuto pedal while the notes are held, those notes will be sustained as long
as the pedal is held, but all subsequently played notes will not be sustained.
If you play a note or chord on the keyboard and press
Damper Pedal (Right):
an actual acoustic piano, letting you sustain the sound of the voices even after
releasing your fingers from the keys.
Your piano has Half-pedal function. You may release your foot from the pedal
to different position to change the sustain time. The less you release your foot from
the pedal, the longer the sustain effect lasts.
It performs the same function as the damper pedal on
Soft Pedal (Left):
decrease the output sound volume.
The Soft Pedal controls the sound volume. Press the pedal to
As standard, the pedal will affect the note playing after pressed. To change polarity,
hold the foot pedal down during power up.
NOTE

Power Switch
Adjust the Volume
Turn on the power by pressing the POWER switch before playing, the panel LCD
display will light.
Initially set the [MASTER VOLUME] at the middle between the"MIN" and
"MAX" . You can adjust the volume to accommodate your playing.
Demo Play
There are 10 demo songs that you can play individually. Here's how you can
select and play the demo songs.
Listen to the Demo Song
Press [DEMO] button to Play the demo songs in sequence. Use [+] and [-] buttons
or [DATA CONTROL] knob to select the number of the song you want to play.
7
MASTER VOLUME
MIN MAX
SPLIT
HARMONY
FULL KEYB.
TWIN
RHY1 RHY2 BASS CRD1 CRD2 PAD PHR1 PHR2
DEMO
Stop Playing
Press [DEMO] button again to stop playing.
SPLIT
HARMONY
FULL KEYB.
TWIN
RHY1 RHY2 BASS CRD1 CRD2 PAD PHR1 PHR2
Basic Operation

8
Selecting a Voice
Your instrument has 128(01-128) GM standard voices, 8(129-136) different drum
percussion kits and 1 set of sound effect that you can select and play.
Press [VOICE/STYLE] button, when the button is unlight, the voice mode is selected
and the current voice number and the name will display on the LCD Display section.
VOICE/STYLE
Use [+] and [-] button or [DATA CONTROL] knob to select the desired voice
according to the voice list.
-
+
When [VOICE/STYLE] button is unlight, you can use the Direct Select Button to
select a voice.
PIANO ORGAN GUITAR BASS ENSEMBLE
8 BEAT BALLAD DANCE DISCO
SWING&JAZZ
BRASS
LEAD SYNTH EFFECT PERC.
R&B COUNTRY LATIN WALTZ
The name above the Direct Select Button is the voice name.
NOTE
DATA CONTROL
SPLIT
HARMONY
FULL KEYB.
TWIN
RHY1 RHY2 BASS CRD1 CRD2 PAD PHR1 PHR2
SPLIT
HARMONY
FULL KEYB.
TWIN
RHY1 RHY2 BASS CRD1 CRD2 PAD PHR1 PHR2
SPLIT
HARMONY
FULL KEYB.
TWIN
RHY1 RHY2 BASS CRD1 CRD2 PAD PHR1 PHR2
16 BEAT
Voices

9
Sustain Mode
Press [SUSTAIN] button, the button will light. It can be used as a damper pedal.
Turning sustain on to sustain notes after the keys are released.
Press [SUSTAIN] button again to turn sustain off.
SUSTAIN SPLIT
HARMONY
FULL KEYB.
TWIN
RHY1 RHY2 BASS CRD1 CRD2 PAD PHR1 PHR2
[K.MODE] Mode
Press [K.MODE] button repeatedly to select split mode, the Split cursor is flashing.
Your keyboard will be split into two sections which means different voices can be
played with the left and right hands at the same time.
K.MODE METRONOME SPLIT
HARMONY
FULL KEYB.
TWIN
RHY1 RHY2 BASS CRD1 CRD2 PAD PHR1 PHR2
Select Harmony Mode
Press [K.MODE] button repeatedly again to select Harmony mode, the Harmony
cursor on the display.
The Harmony is derived from the chords you have played if you use Automatic
Accompaniment or turn on the Chord function.
K.MODE METRONOME SPLIT
HARMONY
FULL KEYB.
TWIN
RHY1 RHY2 BASS CRD1 CRD2 PAD PHR1 PHR2
Select Split Mode

10
Select Twin Mode
Press [K.MODE] button repeatedly again to select TWIN mode. In this mode, the
keyboard will be separated into two playing areas.
Right: from C#3 to C7 Left: from A-1 to C3
This will be very helpful when the instrument is used by two players at the same
time (example: Teacher and Student) and they will be able to play the same piano
sound in the same octave.
While the TWIN feature is selected using the optional 3 lever pedal, the pedals
automatically switch in a different configuration where there are 2 Sustain pedals,
one for the left and one for the right part of the keyboard.
K.MODE METRONOME SPLIT
HARMONY
FULL KEYB.
TWIN
RHY1 RHY2 BASS CRD1 CRD2 PAD PHR1 PHR2
Select Normal Mode
Press [K.MODE] button repeatedly again to select Normal mode, the LCD display
“Normal” means your keyboard is in Normal playing mode.
K.MODE METRONOME SPLIT
HARMONY
FULL KEYB.
TWIN
RHY1 RHY2 BASS CRD1 CRD2 PAD PHR1 PHR2
Select Full Keyboard Mode
Press [K.MODE] button again to select Full Keyboard mode, the Full Keyboard
cursor on the display.
This feature allows you to play automatic chords in the full length of the keyboard.
Press the button and dedicated arrow will indicate it on the display.
When in full keyboard the chords played by the Auto Accompaniment System will
not be displayed on the screen.
K.MODE METRONOME SPLIT
HARMONY
FULL KEYB.
TWIN
RHY1 RHY2 BASS CRD1 CRD2 PAD PHR1 PHR2

When touch is set to off, the same volume is produced no matter how strongly or
softly you play the keyboard. You can press [TOUCH] for few seconds. LCD will
show this volume value and you can adjust it by [+] or [-] button.
SPLIT
HARMONY
FULL KEYB.
TWIN
RHY1 RHY2 BASS CRD1 CRD2 PAD PHR1 PHR2
TOUCH K.MODE
Touch Button
The touch function provides 3 different types of keyboard touch sensitivity that
can be selected to match different playing styles.
Press the [TOUCH] button, when the cursor is lighting , use [+]and[-] button or turn
the [DATA CONTROL] knob to select the touch sensitivity type in the range of
00 to 03. Default:02 Touch.
SPLIT
HARMONY
FULL KEYB.
TWIN
RHY1 RHY2 BASS CRD1 CRD2 PAD PHR1 PHR2
TOUCH K.MODE
Tempo Button
The tempo of style can be adjust over a range of 20~280 bmp (beats per minute).
Press the [TEMPO] button, then use the [DATA CONTROL] knob or [+] and[-] button to
increase or decrease the value.
TEMPO TOUCH
SPLIT
HARMONY
FULL KEYB.
TWIN
RHY1 RHY2 BASS CRD1 CRD2 PAD PHR1 PHR2
-
+
11

12
Press [FUNCTION] button to enter the menu of function.
press [FUNCTION] button repeatedly and turn the [DATA CONTROL] knob or
use [+] and [-] button select the option to be set. Press [ENTER] to set the parameter.
The option and the parameters are as the follows:
If you don't press any button for 5 seconds after entering the function menu,
it will quit this menu automatically.
Option LCD Display Range Default
Func.?
Perf.?
Effect?
Midi?
Dual?
D.Voice?
OTS?
S.Point?
C.Point?
Local?
Trans?
Tune?
M.Pan?
S.Pan?
D.Pan?
M.Oct?
S.Oct?
D.Oct?
M.Vol?
S.Vol?
D.Vol?
Reverb?
Chorus?
M.RVol?
S.RVol?
D.RVol?
M.CVol?
S.CVol?
D.CVol?
MidIn(01?~16?)
MidMain?
MidLeft?
MidDual?
on~off
01~137
on~off
00~87
00~87
on~off
-12~12
-64~63
-64~63
-64~63
-64~63
-2~2
-2~2
-2~2
00~127
00~127
00~127
00~08
00~08
00~63
00~63
00~63
00~63
00~63
00~63
on~off
01~16,off
01~16,off
01~16,off
off
49
off
34
34
on
00
00
00
00
00
0
0
0
127
127
75
05
00
18
18
18
18
18
18
on
01
02
03
NOTE
Function

Dual
Press [FUNCTION] button to select “Func.?”.
Then press [ENTER] button to confirm, select “Dual?”.
This function is capable of enhancing the delicacy of your music by playing two
voices of musical instruments simultaneously; new combinations of voices and
music could be created then.
When the dual function is off, the voice indicated is Main VOICE. When the dual
function is on, the voice indicated is Dual VOICE.
SPLIT
HARMONY
FULL KEYB.
TWIN
RHY1 RHY2 BASS CRD1 CRD2 PAD PHR1 PHR2
Press [ENTER] button to confirm, and use [+] and [-] buttons or [DATA CONTROL]
knob to select “Dual On”or “Dual Off”. When set“Dual On”, the“DUAL”
signal lightened simultaneously
ENTER SPLIT
HARMONY
FULL KEYB.
TWIN
RHY1 RHY2 BASS CRD1 CRD2 PAD PHR1 PHR2
FUNCTION
SPLIT
HARMONY
FULL KEYB.
TWIN
RHY1 RHY2 BASS CRD1 CRD2 PAD PHR1 PHR2
ENTER
13

Press [ENTER] button to again, the“DUAL”signal is flashing, use [+] and [-]
buttons or [DATA CONTROL] knob to select the second voice.
ENTER SPLIT
HARMONY
FULL KEYB.
TWIN
RHY1 RHY2 BASS CRD1 CRD2 PAD PHR1 PHR2
OTS
In “Func.?”function, press [ENTER] button to confirm, use [+] and [-] buttons
or [DATA CONTROL] knob to select“OTS?”.
This function is actually a convenient feature which automatically selects a suitable
voice for you when you select a style.
Dual Voice
In “Func.?”function, press [ENTER] button to confirm, use [+] and [-] buttons
or [DATA CONTROL] knob to select“D.Voice?” .
ENTER SPLIT
HARMONY
FULL KEYB.
TWIN
RHY1 RHY2 BASS CRD1 CRD2 PAD PHR1 PHR2
SPLIT
HARMONY
FULL KEYB.
TWIN
RHY1 RHY2 BASS CRD1 CRD2 PAD PHR1 PHR2
ENTER
14

Press [ENTER] button to again, use [+] and [-] buttons or [DATA CONTROL] knob
to select“OTS On”or“OTS Off”. When set“OTS On”, the“OTS” signal
lightened simultaneously
SPLIT
HARMONY
FULL KEYB.
TWIN
RHY1 RHY2 BASS CRD1 CRD2 PAD PHR1 PHR2
ENTER
Split and Chord Point
In this section, you can set the split or chord point when your keyboard is in Split
or Chord mode.
In“Func.?”function function, press [ENTER] button to confirm, use [+] and [-]
buttons or [DATA CONTROL] knob to select“S. Point?”or“C. Point?”.
SPLIT
HARMONY
FULL KEYB.
TWIN
RHY1 RHY2 BASS CRD1 CRD2 PAD PHR1 PHR2
S. Point?------Split Point
C. Point?------Chord Point
ENTER
ENTER
Press [ENTER] button to confirm, and use [+] and [-] buttons or [DATA CONTROL]
knob to set the Point. Range：00~87.
SPLIT
HARMONY
FULL KEYB.
TWIN
RHY1 RHY2 BASS CRD1 CRD2 PAD PHR1 PHR2
15

Local
In this function, you can turn on or turn off the speaker system of your piano.
In“Func.?”function function, press [ENTER] button to confirm, use [+] and [-]
buttons or [DATA CONTROL] knob to select “Local ?”
SPLIT
HARMONY
FULL KEYB.
TWIN
RHY1 RHY2 BASS CRD1 CRD2 PAD PHR1 PHR2
ENTER
Press [ENTER] button to confirm, and use [+] and [-] buttons or [DATA CONTROL]
knob to select “Local On” or “Local Off”.
SPLIT
HARMONY
FULL KEYB.
TWIN
RHY1 RHY2 BASS CRD1 CRD2 PAD PHR1 PHR2
Local on------ Normal operation. Keyboard and Controllers are sent
to the Sound Engine.
Local off------ There will be no sound produced by the brain's tone
generator. MIDI function can work as usual.
ENTER
Transpose
In this function allows you to change the pitch of the instrument in semitone steps,
up to a maximum setting of 12 semitones (a maximum of one octave up or down).
Press [FUNCTION] button to select “Perf.?”.
16