User manual PIONEER A-50-K

[. . . ] Book 2 ページ ２０１２年７月２７日　金曜日　午後６時５３分 IMPORTANT CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. d3-4-2-1-1_A1_En WARNING This equipment is not waterproof. To prevent a fire or shock hazard, do not place any container filled with liquid near this equipment (such as a vase or flower pot) or expose it to dripping, splashing, rain or moisture. [. . . ] The center position is the flat (normal) position. When turned to the right, low-frequency tones are emphasized; when turned to the left, low-frequency tones are de-emphasized. € This button does not operate when the DIRECT button is in the on position. 10 TREBLE tone control Use to adjust the high-frequency tone. The center position is the flat (normal) position. When turned to the right, high-frequency tones are emphasized; when turned to the left, high-frequency tones are deemphasized. € This button does not operate when the DIRECT button is in the on position. 3 SPEAKERS A button/indicator Use this button to listen to the speaker system connected to SPEAKERS A terminals. No sound is heard from the speaker system. Set to this position when listening with headphones. 5 LOUDNESS button/indicator Use when listening at low volume levels. On : The indicator lights: Boosts low and high frequencies to give added punch to playback even at a low volume level. Off : The indicator goes off: Should normally be left in this position. € This button does not operate when the DIRECT button is in the on position. € When sound volume is raised, the amount of change produced by the LOUDNESS circuit is reduced. 11 BALANCE control Should normally be left in the center position. Adjust balance if the sound is louder from one of the speakers. If the right side is louder, turn toward the L (left) position and if the left side is louder, turn toward the R (right) position. € This button does not operate when the DIRECT button is in the on position. 12 ATTENUATOR button (A-70 only) Press when you wish to make fine adjustments to the sound volume when playing at very low sound volume levels. 13 VOLUME control Use to adjust the volume level. (Also allows adjustment of the headphone sound volume. [. . . ] During playback, sound stops, and the STANDBY/APD indicator flashes red at about 3 second intervals. Cleaning the unit • Use a polishing cloth or dry cloth to wipe off dust and dirt. € When the surface is dirty, wipe with a soft cloth dipped in some neutral cleanser diluted five or six times with water, and wrung out well, and then wipe again with a dry cloth. € Never use thinners, benzine, insecticide sprays or other chemicals on or near this unit, since these will corrode the surface. [. . . ]