• Song Bank data cannot be sent as MIDI data. • MIDI messages cannot be received while the keyboard is in the Song Bank Mode. 625A-E-035A E-33 CTK481_E31_33.p65 Page 33 03.10.7, 2:58 PM Adobe PageMaker 6.5J/PPC Troubleshooting See page Pages E-13, 14 Page E-16 Page E-16 Page E-16 Pages E-13, 14 Page E-21 Pages E-29, 30 Action 1. Correctly attach the AC adaptor, make sure that batteries poles (+/ –) are facing correctly, and check to make sure that batteries are not dead. 2. Set the POWER/MODE switch to the NORMAL position. 3. Use the MAIN VOLUME buttons to increase volume. 4. Normal play is not possible on the accompaniment keyboard while the POWER/MODE switch is set to CASIO CHORD or FINGERED. Change the POWER/MODE switch setting to NORMAL. Replace the batteries with a set of new ones or use the AC adaptor. Use the ACCOMP VOLUME button to increase the volume. Change the transpose or tuning parameter value to 0 or 00. Problem No keyboard Sound Any of the following symptoms while using battery power. • 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 high volume • Sudden power failure when playing at high volume • Flickering or dimming of the display when playing at high volume • Continued sound output even after you release a key • A tone that is totally different from the one that is selected • Abnormal rhythm pattern and Song Bank play • Loss of power, sound distortion, or low volume when playing from a connected computer or MIDI device • Distortion of microphone input • Dim power supply indicator when a microphone is used • Sudden power failure when using the microphone Auto Accompaniment does not sound. The key or tuning does not match when playing along with another instrument. Possible Cause 1. Power supply problem. 2. Power is not turned on. 3. Volume setting is too low. 4. The POWER/MODE switch is in the CASIO CHORD or FINGERED position. Low battery power Auto accompaniment volume is set to 0. The tuning or transpose parameter is set to a value other than 0 or 00. 625A-E-036B E-34 CTK481_E34_37.p65 Page 34 03.10.7, 2:58 PM Adobe PageMaker 6.5J/PPC See page Page E-24 Page E-21 Page E-31 Page E-33 See the documentation that comes with your computer or sequencer. Page E-17 Page E-17 Page E-17 Page E-17 Action 1. Check the display to see if the indicator for one of the parts is not displayed. If so, press the part’s button (LEFT ON/OFF, RIGHT ON/ 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 on the computer or turn off LOCAL CONTROL on the keyboard. 1. Use a full metal shielded Cannon type microphone. 2. Move the microphone away from source of the static. 1. Increase the microphone volume setting. 2. Change the microphone on/off switch setting to ON. Problem Missing Song Bank tune. No sound is produced when playing MIDI data from a computer. The bass notes of General MIDI data being played back by a computer are one octave too low. Playing on the keyboard produces an unnatural sound when connected to a computer. Static noise when a microphone is connected. No microphone sound Possible Cause 1. Left-hand or right-hand part is turned off. 2. Accompaniment volume is set to 0. MIDI cables are not connected properly. TONE MAP is turned “N”. The computer’s MIDI THRU function is turned on. 1. Use of a microphone that is a different from the type that is recommended. 2. Use of the microphone in the vicinity of fluorescent lighting. 1. Microphone volume setting is too low. 2. Microphone on/off switch is set to OFF. 625A-E-037B E-35 CTK481_E34_37.p65 Page 35 03.10.7, 2:58 PM Adobe PageMaker 6.5J/PPC Specifications Model: CTK-481/CTK-491 Keyboard: 61 standard-size keys, 5 octaves Tones: 100 Polyphony: 12 notes maximum (6 for certain tones) Auto Accompaniment Rhythm Patterns: 100 Tempo: Variable (236 steps, = 20 to 255) Chords: 2 fingering methods (CASIO CHORD, FINGERED) Rhythm Controller: START/STOP, SYNCHRO/FILL-IN Accomp Volume: 0 to 9 (10 steps) Song Bank Tunes: 100 Controllers: PLAY/PAUSE, STOP, REW, FF, LEFT ON/OFF (ACCOMP), RIGHT ON/OFF (MELODY) Display Name display: TONE, RHYTHM, SONG BANK name/number, keyboard settings name/value Tempo: Tempo value, metronome, synchro standby, beat indicator, volume setting Chord: Chord name, Chord form Fingering: Fingering indicators, parts Song Bank Status: PLAY, PAUSE, REW, FF Staff: 5 octaves with sharp and flat indications, pedal symbol, octave symbol Keyboard: 5 octaves MIDI: 5 multi-timbre receive Other Functions Transpose: 12 steps (–6 semitones to +5 semitones) Tuning: Variable (A4 = approximately 440Hz ±50 cents) Volume: 0 to 9 (10 steps) Terminals MIDI Terminals: IN, OUT Sustain Terminal: Standard jack Phones/Output Terminal: Stereo standard jack (Output is monaural.) Ou...
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