Maintenance and Troubleshooting
Scanner Diagnostics
8-3
10. Replace the access panel and loosely install the screws, starting with those closest to the
hinge (the back) of the access panel. When the screws are loosely in place, tighten them all.
Note to K2500 owners
: On 2500-series instruments, the LEDs on the front panel ßash three times
when battery voltage is low. This isnÕt necessarily the case with the K2600Ñin fact on rack models, the
LEDs always ßash three times at powerup.
Scanner Diagnostics
ThereÕs an onboard diagnostic program that enables you to check your battery and conÞrm front
panel button functions.
To enter the Scanner Diagnostics, simply press
4
,
5
, and
6
(on the alphanumeric buttonpad)
simultaneously while in Program mode. The K2600 responds by lighting each LED in sequence
and then displaying something like the following (the display says K2500, but the diagnostics
have been updated for the K2600).
K2600|SCANNER|DIAGNOSTICS|VERSION|5.00||
(PRESS|"EXIT"|AND|"ENTER"|TO|EXIT)||||||
BATTERY=3.2VOLTS,|WHEEL|CENTER=128||||||
||||||||||||||||||||||||||||||||||||||||
XXXXXX||||||||||||||||||||||||||||||||||
||||||||||||||||||||||||||||||||||||||||
||||||||||||||||||||||||||||||||||||||||
||||||||||||||||||||||||||||||||||||||||
The battery voltage and wheel center values may be different on your unit. The line represented
by XXXX gives a readout identifying the buttons you press.
The diagnostic program can also be used to check out the front panel components. If you move
the Alpha Wheel clockwise, the numbers will go 0-1-2-3-0-1-2...while counterclockwise should
produce 3-2-1-0-3-2-1... If you press a button, its name will be shown and if it is one of the mode
buttons, its associated LED should ßash.
The third line of the display shows the results of two measurements that are made whenever
your K2600 is turned on. The battery voltage will be about 4.3 volts for new batteries, gradually
declining over time to 3.2 volts, at which point you will begin to receive warnings (see
Battery
Replacement
on page 8-2). The line referring to the Wheel is relevant for keyboard models only.
Maximizing Music and Minimizing Noise
Your K2600 quite possibly has the lowest noise and widest dynamic range of any instrument in
your studio. The following tips will enable you to make the most of this, and optimize the
K2600Õs audio interface to your other equipment.
Setting your audio levels appropriately is the key to optimizing the signal-to-noise ratio of any
piece of equipment. ItÕs best to increase the output level
digitally
(by editing programs) instead
of increasing the gain of your ampliÞer or mixing board. This is because a digital gain increase is
completely noiseless, whereas an analog increase will proportionally increase hum and noise
from the connecting cabling and from the K2600 itself.
Increasing the volume digitally can be accomplished in three different ways. You can increase
the volume of all programs assigned to a given MIDI channel by selecting the CHANNELS page
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