Casio CTK-491 User Guide - Page 36
Troubleshooting - attachment
UPC - 079767312732
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Troubleshooting Problem Possible Cause Action See page No keyboard Sound 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. 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. Pages E-13, 14 Page E-16 Page E-16 Page E-16 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 Low battery power Replace the batteries with a set of new Pages E-13, 14 ones or use the AC adaptor. • Distortion of microphone in- put • Dim power supply indicator when a microphone is used • Sudden power failure when using the microphone Auto Accompaniment does not Auto accompaniment volume is set to Use the ACCOMP VOLUME button to Page E-21 sound. 0. increase the volume. The key or tuning does not The tuning or transpose parameter is Change the transpose or tuning pa- Pages E-29, 30 match when playing along with set to a value other than 0 or 00. rameter value to 0 or 00. another instrument. E-34 CTK481_E34_37.p65 Page 34 625A-E-036B 03.10.7, 2:58 PM Adobe PageMaker 6.5J/PPC