Power Supply

Turning Off the Keyboard

•Be sure to press the POWER button to turn off power and make sure that the LCD backlight is off before disconnecting the AC adaptor or doing anything else.

•Never disconnect the AC adaptor while the keyboard is turned on or try to turn off power using any other technique besides pressing the POWER button. Doing so can cause the contents of the keyboard’s Flash memory to become corrupted. Strange keyboard operation and abnormal startup when power is turned on are symptoms of corrupted Flash memory contents. See “Troubleshooting” on page E-95 for more information.

IMPORTANT!

•While the following message is on the display, never turn off the keyboard by pressing the POWER button, disconnecting the AC adaptor, etc.

(message) “Pls Wait” or “Bulk In”

Turning off the keyboard while the above message is on the display can cause user data (user tones, song memory data, etc.) currently stored in keyboard memory or on external media to become corrupted. Once corrupted, you may not be able to recall the data again.

Memory Contents

In addition to the above settings, data stored in the Registration Mode and Song Memory Mode is also retained when keyboard power is turned off.

Saving Setups and Memory Contents

About Flash memory

Your keyboard comes with built-in Flash memory, which can continue to hold data even when electrical power is totally cut off. This means that even after batteries go completely dead, you can attach the AC adaptor, turn on power, and still recall data stored in memory.

You can back up keyboard memory contents and other data using the media described below.

•SmartMediaTM CardSee “Using a SmartMedia Card” on page E-83.•Floppy Diskette (WK-3700 only)See “Using the Floppy Disk Drive (WK-3700 Only)” on page E-84.•Computer hard diskSee “MIDI” on page E-79.

IMPORTANT!

•When running under battery power, be sure to replace batteries as soon as possible after the first signs of low battery power (dim power indicator lamp, dim display characters, etc.) Though the keyboard’s Flash memory is non-volatile (which means that data is not lost when power is interrupted), data can be lost if power suddenly fails while data is being written to flash memory*.

*While storing or deleting user data, while recording with the synthesizer, while transferring data from a computer, etc.

Initializing the Keyboard

Initialization can be used to return keyboard parameters to their initial factory default settings, or to delete all data currently in keyboard memory. See page E-73 for more information about initialization.

Returning the keyboard to its initial factory defaults

You can use the CD-ROM that comes with the keyboard and your computer to return the keyboard’s flash memory and all of its parameters to their initial factory default settings. See “Bundled CD-ROM Data” on page E-80 for details.

E-16

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