Casio CTK900 User Guide - Page 15
Using the AC Adaptor, Auto Power Off
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Power Supply Using the AC Adaptor Make sure that you use only the AC adaptor specified for this keyboard. Specified AC Adaptor: AD-5 Rear Panel 1 2 3 1 DC 9V jack 2 AC adaptor AD-5 3 AC outlet Note the following important precautions to avoid damage to the power cord. G During Use • Never pull on the cord with excessive force. • Never repeatedly pull on the cord. • Never twist the cord at the base of the plug or connector. • The power cord should not be stretched tight while it is in use. G During Movement • Before moving the keyboard, be sure to unplug the AC adaptor from the power outlet. G During Storage • Loop and bundle the power cord, but never wind it around the AC adaptor. • Make sure that the keyboard is turned off before connecting or disconnecting the AC adaptor. • Using the AC adaptor for a long time can cause it to become warm to the touch. This is normal and does not indicate malfunction. Auto Power Off When you are using battery power, keyboard power turns off automatically whenever you leave it on without performing any operation for about 6 minutes. When this happens, press the POWER button to turn power back on. • Auto Power Off is disabled (it does not function) when you are using the AC adaptor to power the keyboard. To disable Auto Power Off Hold down the TONE button while turning on the keyboard to disable Auto Power Off. • When Auto Power Off is disabled, the keyboard does not turn off automatically no matter how long it is left with no operation being performed. • Auto Power Off is automatically enabled whenever you turn on keyboard power. Settings Tone, rhythm, and other "main keyboard settings" in effect when you turn off the keyboard manually by pressing POWER button or when Auto Power Off turns off power are still in effect the next time you turn power back on. Main Keyboard Settings Tone number, layer, split, split point, drawbar organ tone settings, transpose, tuning, contrast settings, touch response, reverb, chorus, DSP, equalizer, rhythm number, tempo, keyboard channel, MIDI In Chord Judge on/off, accomp MIDI out on/off, assignable jack setting, accompaniment volume, user area tones (Synthesizer Mode), user area accompaniments, user DSP area, Auto Harmonize on/off, Auto Harmonize type, Mixer hold, DSP hold, Auto Accompaniment mode, all Mixer parameters, all Synthesizer Mode parameters, Song Memory song numbers, SMF player settings (play mode, manual play part, SMF playback volume) 707A-E-015A E-13