Troubleshooting - Korg Concert C-1500 Owner's Manual

Local control
Turn this off in the following situations.
· When you do not want the C-1500 to sound
when you play its keyboard, but want only a
connected MIDI tone generator to sound.
· When you are using a sequencer that is set
to echo back (re-transmit) the data it re-
ceives, and wish to prevent notes from be-
ing sounded in duplicate by the C-1500.
C-1500 Program List
PC# sound
0 Piano1
1 Piano2
2 Electric piano1
3 Electric piano2
4 Harpsichord
5 Vibraphone
6 Organ
7 Strings
This instrument will switch sounds when it re-
ceives MIDI program numbers 0–7. If MIDI pro-
gram numbers above 8 are received from the
external MIDI device, the C-1500 will not
switch sounds.
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○

7. Troubleshooting

Power does not turn on
No sound from the speakers
Notes are interrupted
The pitch or tone of piano
sounds is wrong in certain
key ranges
An external device does not
respond to transmitted MIDI data
Pedal effects do not apply
correctly
8
Changing the Local Control setting
Use the C4 and B3 keys to switch Local Control on/off.
If you do not want the C-1500 to produce sound when its keyboard is played (i.e., to
only transmit and receive MIDI data), hold down the [ FUNCTION ] switch and press
B3 to turn Local Off.If you hold down the [ FUNCTION ] switch and press C4, you will
turn Local On, and the C-1500 will sound normally when you play its keyboard.
When the power is turned on, this setting will be Local On (default).
If you turn Local Control off, playing the keyboard will normally produce no
sound.
Transmitting and receiving Program Changes
The program numbers of a connected MIDI device can be selected from the C-
1500, or you can use a connected MIDI device to select program numbers on the C-
1500. When you select a sound on the C-1500 (
different sounds"), MIDI program change numbers (PC#) 0...7 will be transmitted,
as shown in the table at left. When a program change number (PC#) is received
from an external device, the corresponding sound will be selected for the C-1500
timbre of that MIDI channel. At this time, no program change will occur for the sound
that is played from the keyboard.
Using the C-1500 as a multi-timbral tone generator
The C-1500 will function as a 16-part multi-timbral tone generator that can be con-
trolled and played from an external MIDI device. If you transmit performance data
together with program change messages from a connected sequencer etc., the C-
1500 will play using its sounds that correspond to those program numbers. By using
the C-1500 as a multi-timbral tone generator you can produce performances similar
to demo number 2 ( p.5)
If you suspect a malfunction, please check the following points first. If this does not
resolve the problem, please contact your dealer or a Korg service center.
· Is the power cable connected to an appropriate AC outlet? ......................
· Is the power cable connector plugged into the socket on
· Is the power switch turned on? ...................................................................
· Is the [ VOLUME ] slider raised? ....................................................................
· Have headphones been plugged in? ..........................................................
· Was the Local Control setting turned off? ..................................................
· The sounds of the C-1500 are produced by sampling (recording) the sounds of
actual instruments, and processing or analyzing them. Some sounds play one
piece of sampled data when a note is played (mono), while other sounds play two
pieces (stereo). The PIANO 1 sound is stereo, so the maximum number of notes
that can be played simultaneously (i.e., the polyphony) will be 32 notes, even if
the damper pedal is pressed. For other sounds, the polyphony is 64 notes.
· The piano sounds of the C-1500 are designed to simulate the sounds of a real
piano as accurately as possible. For this reason, it may sound as though there is
something unusual about the pitch or tone, such as an emphasis in the overtones
of certain ranges. This is not a malfunction.
· Make sure that MIDI cable connections are correct.
· Make sure that the C-1500 is transmitting MIDI data
on the channel that the receiving device is set to receive. .........................
· Has the pedal connector been disconnected? .........................................
p.5 "3. Selecting and playing
the bottom of the C-1500? .......................
p.4
p.10
p.4
p.4
p.4
p.8
p.7
p.10