Kurzweil K2661, Musician’S Reference Manual

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8-2
Maintenance and Troubleshooting
Battery Replacement
Battery Replacement
The K2661 uses a 3-volt lithium coin-cell battery (CR2032) for program RAM backup (sample
RAM is not battery-backed). Unlike a typical alkaline battery—whose voltage output declines
over the life of the battery—a lithium cell maintains a stable voltage until it’s almost out of
power. Once it has used up almost all of its power, however, its voltage drops rapidly.
Consequently, to avoid the risk of losing the contents of your program RAM, you should replace
the battery as soon as your K2661 warns of low battery voltage.
The battery in your K2661 will last for several years.You’ll know the battery is losing power
when the display says BATTERY VOLTAGE IS LOW during powerup. When you see this
warning, replace the battery as soon as possible.
Replacing the battery requires you to open an access panel on the underside of your instrument.
This is the same panel you would open to install sample RAM, or ROM sound block options.
1. Obtain a CR2032 lithium coin cell; any store that sells batteries for small electronic
appliances is likely to have them in stock.
2. Make sure you have backups of any RAM objects (not including samples) in the K2661
that you really care about. A quick way to make backups is to use the save function in
Disk mode, and choose to save everything instead of choosing one bank at a time.
Warning : Turn off your K2661 and disconnect the power cable!
3. Carefully place your K2661 upside down on a padded level surface, with the front of the
instrument toward you. Use soft, sturdy foam under the ends of the instrument, to protect
the wheels and sliders.
4. Locate the access panel. It’s about 6 by 13 inches in size, slightly to the right of center,
toward the back of the instrument.
5. Remove the screws that hold the access panel in place, and swing the panel open from the
front. It hinges at the back, and rests in a position that’s convenient for referring to the
diagram that’s printed on the inside of the panel.
6. Locate the battery slot. It’s toward the far edge of the circuit board, toward the rear of the
instrument.
7. Put the new battery in an easily-accessible location. Once you remove the old battery,
you’ll have about 30 seconds to install the new one before you lose data from program
RAM. If you install the new battery within 30 seconds, you probably won’t have to reload
any program-RAM objects.
8. To snap the old battery out of its retaining clip, lift up on the front of the battery (there’s a
notch at the front of the clip, where you can get a bit of leverage), then push the battery
toward you from behind. If necessary, carefully use a small screwdriver or other object to
push the battery out.
9. Snap the new battery in place, with the plus side up. Make sure that it snaps securely into
the retaining clip.
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.