Troubleshooting; Specifications; Changing The Midi Channel - Korg SP-170S Owner's Manual

Pitch Control function (Tuning)
When you're playing together with other instruments, you
can use this the Pitch Control function to fix any slight dif-
ferences in pitch between instruments. You can adjust the
tuning of the SP-170S in half-step (0.5) Hz intervals over a
range of 427.5–452.5 Hz (Hertz) by using the E5 and F5 keys.
• Press and hold down the PIANO PLAY and SOUND but-
tons (on the right end of the keyboard), then press the E5
key to lower the pitch in 0.5Hz step seach time your press
it, or press the F5 key repeatedly to raise the pitch in 0.5Hz
steps each time you press it.
• To reset the pitch to 440Hz, press and hold down the PIA-
NO PLAY and SOUND buttons, and press the E5 and F5
keys simultaneously.
The default setting (when you turn on the unit) is A4=440Hz.
MIDI
Using the MIDI OUT jack
The MIDI OUT jack transmits MIDI messages. When you
play the keyboard, the MIDI messages will be output to con-
trol (e.g, play the sound of) an external MIDI device. Use an
optional MIDI cable to connect the MIDI OUT jack of the SP-
170S to the MIDI IN jack of an external MIDI device.

Changing the MIDI channel

If you're using the SP-170S as a controller to play sounds
from a connected MIDI device, the MIDI channel of the SP-
170S must match the MIDI channel the external MIDI device.
To change the MIDI channel (1–16) that MIDI data is being
transmitted from via the MIDI OUT jack on the rear panel,
press and hold down the PIANO PLAY and SOUND buttons
simultaneously, and press one of the keys ranging from C4
to D # 5.
The default MIDI channel (when you turn on the unit) is "1."
Transmitting Program Change and Control
Change messages
You can change the program number of the connected MIDI
device from the SP-170S.
When you select a preset sound on the SP-170S (see "Play-
ing Different Sounds" on page 2), it transmits a MIDI Pro-
gram Change number (PC#) as shown in the table below.
To disable this transmission (DIS), press and hold down the
PIANO PLAY and SOUND buttons simultaneously, and then
press the G # 3 key. To enable this transmission (ENA), repeat
the previous procedure but press the A3 key instead.
The SP-170S also transmits Control Change messages to con-
trol Damper (CC64), Bank Select (CC00), etc. for the connected
MIDI device. To disable this transmission (DIS), press and
hold down the PIANO PLAY and SOUND buttons simultane-
ously, and then press the A # 3 key. To enable this transmission
(ENA), repeat the previous procedure but press the B3 key
instead.
The default setting (when you turn on the unit) is ENA
(transmitted) for both Program and Control Change mes-
sages.
Program Change Table
BANK# PC# Sound
0 0 Piano 1
0 1 Piano 2
0 4 E. Piano 1
0 5 E. Piano 2
0 6 Harpsichord
CC00: Bank Select (MSB) for each sound is assigned to 121
4
BANK# PC# Sound
0 7 Clavichord
0 11 Vibraphone
0 19 P. Organ
0 16 E. Organ
0 48 Strings

Troubleshooting

If you perceive any malfunction, check the following sugges-
tions. If the problem persists, contact your nearest Korg dis-
tributor.
Power does not turn on
• M ake sure that the AC adapter is properly connected to the
SP-170S and the AC outlet.
• M ake sure that the power LED is illuminated.
No sound from the speakers
• R otate the VOLUME knob on the rear panel to the right to-
ward MAX.
• T he speakers will be muted if the headphones are connected.
Sound is interrupted
• T he preset sounds of the SP-170S have been created by sam-
pling (recording) sounds of actual musical instruments.
When you press a key, some sounds play a single piece of
sampled data, while other sounds play two pieces of sampled
data. The SP-170S uses two pieces of data for most of its pre-
set sounds. When one of these two-sample sounds is selected
(regardless of whether the damper pedal is being pressed),
the maximum polyphony is 60 notes. However, with two
Piano sounds, the maximum polyphony is 120 notes. If the
maximum polyphony is exceeded, some of the notes will be
lost.
The pitch or tone of the piano sounds wrong in some key regions
• T he SP-170S's piano sounds replicate the sound of an actual
piano as faithfully as possible. This means that in some re-
gions of the keyboard, you may feel that the overtones seem
stronger, or that the tone or pitch seems wrong. This is not a
malfunction.
Pedal is not effective
• M ake sure that the pedal cable is properly connected.
Connected MIDI device does not respond to MIDI messages
• M ake sure that all MIDI cables are properly connected.
• M ake sure that the SP-170S is transmitting MIDI data on the
same MIDI channel as the connected MIDI device.

Specifications

NH Keyboard: 88 note (A0–C8)
Keyboard
Maximum polyphony
Sounds Ten sounds
Headphones x 2 (also function as outputs),
Jacks
MIDI OUT, Damper SW (Pedal )
Amp output 9 W × 2
Oval (10cm x 5cm) x 2
Speakers
Power supply DC 12 V
Power Consumption
12kg / 26. 46 lbs (excluding music stand)
Weight
Dimensions (W x D x H)
1312 × 325 × 144 mm / 51. 65" × 12. 8" × 5. 67"
(including projections, but excluding music
stand)
Included items AC adapter (
* Specifications and appearance are subject to change without
notice for improvement.
120 notes / 60 notes (Stereo)
9 W
), Music stand, Pedal