User manual YAMAHA YPDR-CRK

[. . . ] If you should move, or if any doubt exists about the supply voltage in your area, please contact your dealer for supply voltage verification and (if applicable) instructions. the required supply voltage is printed on the name plate. For name plate location, please refer to the graphic found in the Special Message Section of this manual. The power supply cord (plug) should be disconnected from the outlet when electronic products are to be left unused for extended periods of time. [. . . ] If this product should malfunction, the ground pin provides a path of low resistance for electrical current, reducing the risk of electrical shock. If your wall socket will not accommodate this type plug, contact an electrician to have the outlet replaced in accordance with local electrical codes. Objects have fallen, been inserted, or liquids have been spilled into the enclosure through openings; or c. WARNING: Do not place this product or any other objects on the power cord or place it in a position where anyone could walk on, trip over, or roll anything over power or connecting cords of any kind. The use of an extension cord is not recommended!If you must use an extension cord, the minimum wire size for a 25' cord (or less) is 18 AWG. This product, either alone or in combination with an amplifier and headphones or speaker/s, may be capable of producing sound levels that could cause permanent hearing loss. DO NOT operate for a long period of time at a high volume level or at a level that is uncomfortable. If you experience any hearing loss or ringing in the ears, you should consult an audiologist. IMPORTANT: The louder the sound, the shorter the time period before damage occurs. Ventilation: Electronic products, unless specifically designed for enclosed installations, should be placed in locations that do not interfere with proper ventilation. G Never use benzene, thinner or other volatile liquids for cleaning, as these chemicals may cause damage or discoloration to the finish. Always use a dry, soft cloth to wipe off dust and dirt. Connect the instrument or the output from an external device to this jack. When using the Silent Violin, Viola, or Cello, use a standard monaural plug cable to connect the LINE OUT jack on the instrument to this jack. * Before making any connections, make sure that the power switch is set to OFF. Controls the level of their respective frequencies. tREBLE (high frequencies) , MIDDLE (middle frequencies) , BASS (low frequencies). When set to "0", the tone will be flat, rotate the knob to the left (minus) to cut the frequency, and rotate to the right (plus) to boost the frequency. The signal received via the INPUT jack is transmitted from this jack although with its impedance converted (the signal also bypasses the equalizer circuit). When adding another powered speaker unit, such as another YPDR-CRK, connect the additional unit to this jack. Set to ON (>), the equalizer circuit is active and the three knobs r can be used to adjust their respective frequencies. [. . . ] When the switch is depressed, the lamp next to the switch will light. * To protect the speaker from damage, always make sure that the Volume Control w is set to "0" before the power is switched ON/OFF. How to use the YPDR-CRK Before making any connections, make sure that the power is switched OFF on the YPDR-CRK and all other devices. Use a standard monaural plug cable to connect the LINE OUT jack on the Yamaha Silent String Instrument (Silent Violin, Silent Viola, Silent Cello) to the INPUT jack on the YPDR-CRK to create a 60W amplifier system. [. . . ]