Casio WK 1630 User Guide - Page 16

Power Supply This keyboard can be powered by current from a standard household wall outlet (using the specified AC adaptor) or by batteries. Always make sure you turn the keyboard off whenever you are not using it. Using Batteries Always make sure you turn off the keyboard before loading or replacing batteries. To load batteries 1. Remove the battery compartment cover. 2. Load six D-size batteries into the battery compartment. • Make sure that the positive (+) and negative (-) ends are facing correctly. 3. Insert the tabs on the battery compartment cover into the holes provided and close the cover. tab • Loss of power, sound distortion, or low volume when playing from a connected computer or MIDI device • Sudden power failure while reading from or writing to a diskette (WK-1800 only) IMPORTANT! Improper handling of batteries can cause them to burst and leak, which creates the danger of personal injury or damage due to contact with battery fluid. Be sure to note the following important precautions. • Always make sure that the positive (+) and negative (-) poles are facing correctly as indicated inside the battery compartment. • To avoid damage caused by leaking batteries, be sure to remove batteries from the keyboard whenever you leave it unattended for long periods (such as when leaving on a trip). • Never mix batteries of different types. • Never mix old batteries with new ones. • Never discard batteries by incinerating them, do not allow their poles to be shorted (connected to each other), never take batteries apart, and do not expose batteries to direct heat. • Replace batteries as soon as possible after any sign they are getting weak. • Never attempt to recharge batteries. Using the AC Adaptor Make sure that you use only the AC adaptor specified for this keyboard. Specified AC Adaptor: AD-12 MIDI OUT SUSTAIN/ R L/MONO IN ASSIGNABLE JACK LINE OUT DC 12V AC adaptor AD-12 The keyboard may not function correctly if you load or replace batteries with power turned on. If this happens, turning the keyboard off and then back on again should return functions back to normal. Important Battery Information I The following shows the approximate battery life. Alkaline batteries 2 hours The above value is standard battery life at normal temperature, with the keyboard volume at medium setting. Temperature extremes or playing at very loud volume settings can shorten battery life. I Any of the following symptoms indicate low battery power. Replace batteries as soon as possible whenever any of the following occurs. • Dim power supply 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 volumes • Sudden power failure when playing at high volumes • Flickering or dimming of the dispaly 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 E-14 AC outlet Also note the following important warnings and precautions when using the AC adaptor. WARNING! • Take care to avoid any damage to or breakage of the power cord. Never place any heavy objects on the power cord or expose it to direct heat. Doing so creates the danger of power cord damage, fire, and electrical shock. • Use only the specified AC adaptor. Use of another type of adaptor creates the danger of fire and electrical shock. CAUTION! • For safety sake, be sure to unplug the AC adaptor from the wall outlet whenever leaving the keyboard unattended for a long time (such as when leaving on a trip). • Always turn off the keyboard and unplug the AC adaptor from the wall outlet when you are not using the keyboard. IMPORTANT! • Make sure that the keyboard is turned off before connecting or disconnecting the AC adaptor. • Using the AC adaptor for a long time can cause it to become warm to the touch. This is normal and does not indicate malfunction. 733A-E-016A WK-1800/1600(E)-08~15 Page 14 03.7.31, 5:20 PM Adobe PageMaker 6.5J/PPC