Casio CTK-591 User Manual

Also see for CTK 591 - Full-Size 61 Key Keyboard: Service manual

Contents

Casio CTK-591 User Manual Manual pdf 16 page image

E-14Power SupplyThis keyboard can be powered by current from a standardhousehold wall outlet (using the specified AC adaptor) or bybatteries. Always make sure you turn the keyboard offwhenever you are not using it.Using batteriesAlways make sure you turn off the keyboard before loadingor replacing batteries.To load batteries1 Remove the battery compartment cover.2 Load 6 D-size batteries into the batterycompartment.• Make sure that the positive (+) and negative (–) endsare facing correctly.3 Insert the tabs on the battery compartment coverinto the holes provided and close the cover.NOTE• The keyboard may not function correctly if you load orreplace batteries with power turned on. If this happens,turning the keyboard off and then back on again shouldreturn functions back to normal.Important Battery Information The following shows the approximate battery life.Manganese batteries ............................... 6 hoursThe above value is standard battery life at normaltemperature, with the keyboard volume at mediumsetting. Temperature extremes or playing at very loudvolume settings can shorten battery life. Any of the following symptoms indicate low battery power.Replace batteries as soon as possible whenever any ofthe following occurs.• Dim power supply indicator• Instrument does not turn on• Dim, difficult to read display• Abnormally low speaker/headphone volume• Distortion of sound output• Occasional interruption of sound when playing at highvolumes• Sudden power failure when playing at high volumes• Dimming of the display when playing at high volume• Continued sound output even after you release a key• A totally different tone may sound• Abnormal rhythm pattern and demo tune play• Abnormally low microphone volume• Distortion of microphone input• Dim power supply indicator when a microphone is used• Sudden power failure when using the microphone• Loss of power, sound distortion, or low volume whenplaying from a connected computer or MIDI deviceWARNINGMisuse of batteries can cause them to leak, resulting indamage to nearby objects, or to explode, creating the risk offire and personal injury. Always make sure you observe thefollowing precautions.• Never try to take batteries apart or allow them tobecome shorted.• Never expose batteries to heat or dispose of them byincineration.• Never mix old batteries with new ones.• Never mix batteries of different types.• Do not charge the batteries.• Make sure the positive (+) and negative (–) ends ofthe batteries are facing correctly.CAUTIONMisuse of batteries can cause them to leak resulting indamage to nearby objects, or to explode, creating the risk offire and personal injury. Always make sure you observe thefollowing precautions.• Use only batteries that are specified for use with thisproduct.• Remove batteries from the product if you do not planto use it for a long time.704A-E-016ACTK591_e_08-21.p65 03.10.7, 4:27 PM14