User manual CASIO CTK-550

[. . . ] However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: · Reorient or relocate the receiving antenna. · Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. · Consult the dealer or an experienced radio/TV technician for help. FCC WARNING Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Important! Please note the following important information before using this product. [. . . ] · Always make sure that the Digital Keyboard is turned off before plugging in or unplugging the AC adaptor, or before loading or removing batteries. Open the battery cover on the bottom of the Digital Keyboard, load the batteries, and then close the cover. · Take care to ensure that the positive + and negative - ends of the batteries are facing correctly. Open the battery cover. Pressing here, slide in the direction indicated by the arrow. Using a Household Power Outlet Make sure that you use only the AC adaptor specified for this keyboard. Specified AC Adaptor: AD-E95100L (JEITA Standard plug) Household power outlet DC 9. 5V terminal Load the batteries. AC adaptor · The AC adaptor will become warm to the touch after very long use. · To prevent breaking of the wire, take care to avoid putting any type of load on the power cord. No bending!No winding! B E-13 English Using Batteries Power Supply Important Battery Information The following shows the approximate battery life. Zinc-carbon batteries . . . . . . . . . . . . . . . . . . . . . . . . . . 6 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. Replace batteries as soon as possible whenever any of the following occurs. · 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 Auto Power Off The Digital Keyboard will turn off automatically to preserve battery power if you do not perform any operation for about six minutes (Auto Power Off). To disable Auto Power Off Hold down the TONE button while turning on the keyboard to disable Auto Power Off. · When Auto Power Off is disabled, the keyboard does not turn off automatically no matter how long it is left with no operation being performed. This means that when a rhythm or autoaccompaniment pattern is being played by the keyboard, the number of notes (polyphony) available for keyboard play is reduced. Also note that some of the tones offer only 6-note polyphony. · When rhythm or auto accompaniment is playing, the number of sounds simultaneously played is reduced. Digital Sampling A number of the tones that are available with this keyboard have been recorded and processed using a technique called digital sampling. To ensure a high level of tonal quality, samples are taken in the low, mid, and high ranges and then combined to provide you with sounds that are amazingly close to the originals. You may notice very slight differences in volume or sound quality for some tones when you play them at different positions on the keyboard. This is an unavoidable result of multiple sampling, and it is not a sign of malfunction. Percussion sounds Example: 99 PERCUSSION This tone assigns various percussion sounds to the keyboard. See the "Percussion Instrument List" on page A-7 for full details. Sound Effect Tones With sound effect tones 77 through 79, the type of sound produced depends on the octave where the key you press is located. When 78 PHONE is selected available sound types are PUSH TONE 1, PUSH TONE 2, RING 1, and RING 2. E-17 English Auto Accompaniment RHYTHM [+]/[-] Number buttons This keyboard automatically plays bass and chord parts in accordance with the chords you finger. The bass and chord parts are played using sounds and tones that are automatically selected to select the rhythm you are using. All of this means that you get full, realistic accompaniments for the melody notes you play with your right hand, creating the mood of a one-person ensemble. 2. Press the RHYTHM button. Appears when RHYTHM button is pressed C l ub Pop 3. Use the number buttons to input the two digit rhythm number for the rhythm you want to select. Example: To select "64 WALTZ", input 6 and then 4. Wa l t z Selecting a Rhythm This keyboard provides you with 100 exciting rhythms that you can select using the following procedure. To select a rhythm 1. Find the rhythm you want to use in the rhythm list and note its rhythm number. · Not all of the available rhythms are shown on the rhythm list printed on the keyboard console. For a complete list, see the "Rhythm List" on page A-2. · "00 CLUB POP" is the initial default rhythm setting whenever you turn on keyboard power. [. . . ] · Areas exposed to direct sunlight and high humidity · Areas subjected to temperature extremes · Near a radio, TV, video deck, or tuner The above devices will not cause malfunction of the product, but the product can cause interference in the audio or video of a nearby device. User Maintenance · Never use benzine, alcohol, thinner, or other chemical agents to clean the product. · To clean the product or its keyboard, wipe with a soft cloth moistened in a weak solution of water and a mild neutral detergent. Included and Optional Accessories Use only accessories that are specified for use with this product. [. . . ]