Maintenance and Troubleshooting
Troubleshooting
9-5
Make sure your audio cables are fully connected to the K2500 and to your sound system. You
may want to switch your audio cables, unless you’re sure they’re functioning properly.
Make sure that your MIDI connections are correct, and that your MIDI cables are functional.
You should have at least one MIDI cable, which should be connected from the MIDI Out port of
your MIDI controller to the MIDI In port of the K2500.
Check that the K2500’s Volume slider is at least partially up.
Check the volume level of your sound system.
Lower the volume of your sound system, and turn the K2500 off, then on again (this is called a
power cycle).
Press the +/-, 0, and Clear buttons (on the alphanumeric pad at the far right of the front panel)
at the same time. This is called a soft reset.
As a last resort, save to disk any RAM objects you’ve created, and perform a hard reset. Do this
by pressing the Master Mode button, then pressing the “Reset” soft button (at the lower right of
the display). The K2500 will warn you about deleting everything (only RAM objects will be
deleted). Press Yes. After a few seconds, the power-up display should appear.
Also check the suggestions on the following pages. If it’s still not happening, the next step is to
shut off the power and call your dealer.
Other Possible Problems
Condition Possible Cause
No sound, no display, no LEDs illuminated.
1 AC line cord not fully inserted into outlet or unit. If using a multiple outlet
box, check its plug.
2 Power not on at AC power source (wall outlet). Check with a different ap-
pliance.
3 Power switch not on (either the unit or multiple outlet box).
4 Incorrect voltage selection setting. REFER TO QUALIFIED SERVICE PER-
SONNEL.
No sound.
1 Volume control turned all the way down on the K2500 or on amplifier or
mixer.
2 Amplifier or mixer not turned on.
3 Cabling is not correct - see Chapter 2 in the
Performance Guide
- Startup,
and Chapter 18 in the
Performance Guide
- Audio Outputs. Also check that
amplifier, mixer and speaker cabling is correct.
4 MIDI volume has been assigned to a control source which has sent a value
of 0. Pressing the Panic soft button will reset all controls, and resolve this
problem.
No sound at MIX outputs or headphones.
1 Audio cables are plugged into some or all of the separate outputs. Cables
plugged into of the separate outputs will remove some or all of the audio
signal from the MIX and headphone outputs. See Chapter 18 in the
Perfor-
mance Guide
—”Audio Output” for output configurations.
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