Casio CTK-900 User Manual

Also see for CTK-900: Midi implementation Service manual

Contents

Casio CTK-900 User Manual Manual pdf 16 page image

Power SupplyE-14• Be sure to press the POWER button to turn off power andmake sure that the LCD backlight is off beforedisconnecting the AC adaptor or doing anything else.• Never disconnect the AC adaptor while the keyboard isturned on or try to turn off power using any othertechnique besides pressing the POWER button. Doing socan cause the contents of the keyboard's Flash memory tobecome corrupted. Strange keyboard operation andabnormal startup when power is turned on are symptomsof corrupted Flash memory contents. See“Troubleshooting” on page E-78 for more information.• While the following message is on the display, never turn offthe keyboard by pressing the POWER button, disconnectingthe AC adaptor, etc.(message)“Pls Wait” or “Bulk In”Turning off the keyboard while the above message is on thedisplay can cause user data (user tones, song memory data,etc.) currently stored in keyboard memory to becomecorrupted. Once corrupted, you may not be able to recall thedata again.In addition to the above settings, data stored in theRegistration Mode and Song Memory Mode is also retainedwhen keyboard power is turned off.J About Flash memoryYour keyboard comes with built-in Flash memory, which cancontinue to hold data even when electrical power is totally cutoff. This means that even after batteries go completely dead,you can attach the AC adaptor, turn on power, and still recalldata stored in memory.• When running under battery power, be sure to replacebatteries as soon as possible after the first signs of lowbattery power (dim power indicator lamp, dim displaycharacters, etc.) Though the keyboard’s Flash memory isnon-volatile (which means that data is not lost when power isinterrupted), data can be lost if power suddenly fails whiledata is being written to flash memory*.* While storing or deleting user data, while recording withthe synthesizer, while transferring data from a computer,etc.J Backing Up Data to a ComputerYou can use a MIDI connection to back up keyboard settingsand memory contents on a computer’s hard disk. See“MIDI”on page E-75 for more information.Initialization can be used to return keyboard parameters totheir initial factory default settings, or to delete all datacurrently in keyboard memory. See page E-70 for moreinformation about initialization. Returning the keyboard to its initial factory defaultsYou can use the CD-ROM that comes with the keyboard andyour computer to return the keyboard’s flash memory and allof its parameters to their initial factory default settings. See“Bundled CD-ROM Data” on page E-76 for details.Turning Off the Keyboard Memory ContentsSaving Setups and Memory ContentsInitializing the Keyboard707A-E-016A