Casio CTK-900 User Manual

Also see for CTK-900: Midi implementation Service manual

Contents

Casio CTK-900 User Manual Manual pdf 80 page image

TroubleshootingE-78TroubleshootingProblem Possible Cause Action See pageNo keyboard Sound 1. Power supply problem.2. Power is not turned on.3. Volume setting is too low.4. Playing in the accompanimentkeyboard area while the MODEbutton setting is CASIO CHORD orFINGERED.5. Local Control is off.6. Mixer channel 1 is turned off.7. Mixer channel 1 volume setting is toolow.1. Correctly attach the ACadaptor, make sure thatbatteries poles (+/–) are facingcorrectly, and check to makesure that batteries are not dead.2. Press the POWER button toturn on power.3. Use the MAIN VOLUME knobto increase volume.4. None of the accompanimentmode indicators are lit, whichmeans Auto Accompaniment isturned off.5. Turn on Local Control.6. Use the Mixer to turn channel 1on.7. Use the Mixer to raise thevolume setting for channel 1.E-12, 13E-16E-16E-28E-70E-36E-37, 38Any of the following symptomswhile using battery power.Low battery power Replace the batteries with a set ofnew ones or use the AC adaptor.E-12, 13Auto Accompaniment does notsound.1. Accompaniment volume is set to 000.2. Auto Accompaniment part Channels6 through 10 are turned off.3. Auto Accompaniment part Channels6 through 10 volume setting is toolow.1. Use the ACCOMP VOLUMEbutton to increase the volume.2. Use the Mixer to turn thechannels on.3. Use the Mixer to raise thevolume setting for theapplicable channel.E-35E-36E-37, 38Sound output does not changewhen key pressure is varied.Touch response is turned off. Press the TRANSPOSE/FUNCTION button to turn it on.E-64Playing the keyboard sounds twotones.Layer is turned on. Press the LAYER button to turn offlayering.E-61Different tones sound when keysin different keyboard ranges arepressed.Split is turned on. Press the SPLIT button to turn offsplit.E-62The key or tuning does not matchwhen playing along with anotherMIDI machine.1. The tuning or transpose parameter isset to a value other than 00.2. Mixer coarse tune, fine tune, and/oroctave shift settings are values otherthan 00.1. Change the transpose or tuningparameter value to 00.2. Use the Mixer to change thecoarse tune, fine tune, and/oroctave shift settings to 00.E-64, 65E-38Parts suddenly drop out duringsong memory playback.The number of tones being played at thesame time exceeds the keyboard’slimitation.Use the Mixer to turn unneededchannels off and decrease thenumber of parts being played.E-36Some parts do not play at allduring song memory playback.1. Channels are turned off.2. Volume setting is too low.1. Use the Mixer to turn channelson.2. Use the Mixer to check thevolume setting.E-36E-37, 38• Dim power indicator• Instrument does not turn on.• Display that is flickering, dim, ordifficult to read• Abnormally low speaker/headphonevolume• Distortion of sound output• Occasional interruption of soundwhen playing at high volumes• Sudden power failure when playing athigh volumes• Flickering or dimming of the displaywhen playing at high volume• Continued sound output even afteryou release a key• A tone that is totally different from theone that is selected.• Abnormal rhythm pattern and demotune play• Loss of power, sound distortion, orlow volume when playing from aconnected computer or MIDI device707A-E-080A