Casio LK-100 User Manual

Also see for LK100 - Lighted Keyboard With LCD Display: Product catalog Service manual

Casio LK-100 User Manual Manual pdf 31 page image

E-29Technical ReferenceTroubleshootingBe sure to check the following table whenever you experience problems with keyboard operation.CauseSymptom Action• No sound when keyboard keysare pressed.• Any of the following symptomswhile using battery power.• Key light stays on.• Keyboard keys light but nosound is produced.1. Power supply problem.2. Volume setting is too low.3. Headphones are plugged intothe keyboard.4. The POWER/MODE selector isin the CASIO CHORD orFINGERED position.5. Tone “99 PERCUSSION” isselected and you are pressingkeys that are not assigned tones.6. LOCAL CONTROL is off.• Low battery power• Keyboard is waiting for play ofthe correct note during Step 1or Step 2 play.• Power on alert is telling you thatpower is left on.1. Correctly attach the ACadaptor, make sure thatbatteries (+/–) are facingcorrectly, and check to makesure that batteries are not dead.2. Use the MAIN VOLUME sliderto increase volume.3. Unplug the headphones fromthe PHONES/OUTPUT jack.4. Normal play is not possible onthe accompaniment keyboardwhile the POWER/MODEselector is set to CASIOCHORD or FINGERED.Change the POWER/MODEselector setting to NORMAL.5. While “99 PERCUSSION” isselected, you can use only keysthat are marked on the consolewith illustrations of percussioninstruments.6. Turn on LOCAL CONTROL.• Replace the batteries with a setof new ones or use the ACadaptor.1. Press the lit key to continue withStep 1 or Step 2 play.2. Press the START/STOP buttonto quit Step 1 or Step 2 play.• Press any button or keyboardkey to resume normaloperation with the keyboard inits initial power on setting.662A-E-031ASee PagePage E-11Page E-15Page E-13Page E-18Page E-15Page E-28Page E-11PagesE-24, 25PagesE-24, 25Page E-12• 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 MIDIdevice• Abnormally low microphone volume• Distortion of microphone input• Dim power supply indicator when a microphone is used