valutazioni - 5, GPA: 4.2
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Facilità d'uso
A Channel e VOLUME : This knob controls the volume level of Channel A. This knob functions only when Channel A is selected (?) with the CH SELECT switch (the Channel A LED will light). B Channel r GAIN : This knob is used to control the amount of distortion. Rotate the knob to the right to increase distortion. This knob functions only when Channel B is selected (>) with the CH SELECT switch (the Channel B LED will light). t MASTER VOL. : This knob is used to control the volume level of Channel B. This knob functions only when Channel B is selected (>) with the CH SELECT switch (the Channel B LED will light). Tone Controls y TREBLE : This knob controls the level of the amplifier’s high frequencies. u MIDDLE : This knob controls the level of the amplifier’s mid frequencies. i BASS : This knob controls the level of the amplifier’s low frequencies. o AUX IN : Connect the output of an external audio device such as a CD, MD, cassette deck, etc, to this jack to listen to audio playback of the device, along with your guitar, through the F-20 amplifier. * Use the volume control on the audio device to control its volume level. !0 PHONES : Connect a pair of headphones to this jack. * The speaker will produce no sound when a pair of headphones is connected to this jack. !1 POWER : This is the amplifier’s power switch. When the switch is ON, the LED lamp of the channel currently selected with the CH SELECT switch will light. qwe rt yui o!0!1 IMPORTANT SAFETY INSTRUCTIONS IMPORTANT SAFETY INSTRUCTIONS D POSSIBILITIES HAS BEEN INCLUDED IN THIS LIST. WARNING-When using any electrical or electronic product, basic 8. This product was NOT designed for use in wet/damp locations and precautions should always be followed. These precautions include, but are should not be used near water or exposed to rain. Examples of wet /damp not limited to, the following: locations are; near a swimming pool, spa, tub, sink, or wet basement. 1. Read all Safety Instructions, Installation Instructions, Special Mes-9. This product should be used only with the components supplied or; sage Section items, and any Assembly Instructions found in this manual a cart ,rack, or stand that is recommended by the manufacturer. If a cart, BEFORE making any connections, including connection to the main rack, or stand is used, please observe all safety markings and instructions supply. that accompany the accessory product. 2. Do not attempt to service this product beyond that described in the 10. The power supply cord (plug) should be disconnected from the user-maintenance instructions. All other servicing should be referred to outlet when electronic products are to be left unused for extended periods qualified service personnel. of time. Cords should also be disconnected when there is a high probability of lightening and/or electrical storm activity. 3. Main Power Supply Verification: Yamaha products are manufactured specifically for the supply voltage in the area where they are to be 11. Care should be taken that objects do not fall and liquids are not sold. If you should move, or if any doubt exists about the supply voltage in spilled into the enclosure through any openings that may exist. your area, please contact your dealer for supply voltage verification and (if 12. Electrical/electronic products should be serviced by a qualified applicable) instructions. The required supply voltage is printed on the name service person when: plate. For name plate location, please refer to the graphic found in the a. The power supply cord has been damaged; or Special Message Section of this manual. b. Objects have fallen, been inserted, or liquids have been spilled into 4. DANGER-Grounding Instructions: This product must be grounded the enclosure through openings; or and therefore has been equipped with a three pin attachment plug. If this c. The product has been exposed to rain; or product should malfunction, the ground pin provides a path of low resis-d. The product does not operate, exhibits a marked change in perfortance for electrical current, reducing the risk of electrical shock. If your mance; or wall socket will not accommodate this type plug, contact an electrician to e. The product has been dropped, or the enclosure of the product has have the outlet replaced in accordance with local electrical codes. Do NOT been damaged. modify the plug or change the plug to a different type! 13. This product, either alone or in combination with an amplifier and 5. WARNING: Do not place this product or any other objects on the headphones or speaker/s, may be capable of producing sound levels that power cord or place it in a position where anyone could walk on, trip over, could cause permanent hearing loss. DO NOT operate for a long period of or roll anything over power or connecting cords of any kind. The use of an time at a high volume level or at a level that is uncomfortable. If you extension cord is not recommended! If you must use an extension cord, the experience any hea...