E-32Problem Possible Cause See pageActionNo keyboard SoundAny of the following symptoms whileusing battery power.Auto Accompaniment does not sound.The key or tuning does not matchwhen playing along with anotherinstrument.Missing Song Bank tune.No sound is produced when playingMIDI data from a computer.The bass notes of General MIDI databeing played back by a computer areone octave too low.Playing on the keyboard produces anunnatural sound when connected to acomputer.Static noise when a microphone isconnected.No microphone sound1. Power supply problem.2. Power is not turned on.3. Volume setting is too low.4. The POWER/MODE switch is inthe CASIO CHORD or FINGEREDposition.Low battery powerAuto accompaniment volume is set to0.The tuning or transpose parameter isset to a value other than 0 or 00.1. Left-hand or right-hand part isturned off.2. Accompaniment volume is set to 0.MIDI cables are not connectedproperly.TONE MAP is turned “N”.The computer’s MIDI THRU functionis turned on.1. Use of a microphone that is adifferent from the type that isrecommended.2. Use of the microphone in thevicinity of fluorescent lighting.1. Microphone volume setting is toolow.2. Microphone on/off switch is set toOFF.PagesE-13, 14Page E-16Page E-16Page E-16PagesE-13, 14Page E-21Page E-29Page E-24Page E-21Page E-30Page E-31See thedocumentationthat comeswith yourcomputer orsequencer.Page E-17Page E-17Page E-17Page E-17Troubleshooting1. Correctly attach the AC adaptor,make sure that batteries poles (+/–)are facing correctly, and check tomake sure that batteries are notdead.2. Set the POWER/MODE switch tothe NORMAL position.3. Use the MAIN VOLUME buttons toincrease volume.4. Normal play is not possible on theaccompaniment keyboard while thePOWER/MODE switch is set toCASIO CHORD or FINGERED.Change the POWER/MODE switchsetting to NORMAL.Replace the batteries with a set of newones or use the AC adaptor.Use the ACCOMP VOLUME button toincrease the volume.Change the transpose or tuningparameter value to 0 or 00.1. Check the display to see if theindicator for one of the parts is notdisplayed. If so, press the part’sbutton (LEFT ON/OFF, RIGHTON/OFF) to turn it on.2. Adjust accompaniment volume.Connect MIDI cables properly.Change TONE MAP parameter to “G”.Turn off the MIDI THRU function onthe computer or turn off LOCALCONTROL on the keyboard.1. Use a recommended typemicrophone.2. Move the microphone away fromsource of the static.1. Increase the microphone volumesetting.2. Change the microphone on/offswitch setting to ON.627A-E-034A• Dim power indicator• Instrument does not turn on• Display that is flickering, dim, or difficult to read• Abnormally low speaker/headphone volume• Distortion of sound output• Occasional interruption of sound when playing at highvolume• Sudden power failure when playing at high volume• Flickering or dimming of the display when playing athigh volume• Continued sound output even after you release a key• A tone that is totally different from the one that isselected• Abnormal rhythm pattern and Song Bank play• Loss of power, sound distortion, or low volume whenplaying from a connected computer or MIDI device• Abnormally low microphone volume• Distortion of microphone input• Dim power supply indicator when a microphone isused• Sudden power failure when using the microphone