Radio Shack 42-4058 ユーザーズマニュアル

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To listen to your keyboard without disturbing 
others, you can connect an optional pair of 
stereo headphones with a 
1
/
4
-inch (6.35 mm) 
plug. Your local RadioShack store sells a 
wide selection of headphones. Insert the 
headphones’ plug into 
PHONES/OUTPUT
 on 
the back of the keyboard. Connecting 
headphones disconnects the keyboard’s 
built-in speakers.
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To protect your hearing, follow these 
guidelines when you use headphones. 
• Set the volume to the lowest setting 
before you begin listening. After you 
begin listening, adjust the volume to a 
comfortable level.
• Do not listen at extremely high volume 
levels. Extended high-volume listening 
can lead to permanent hearing loss.
• Once you set the volume, do not 
increase it. Over time, your ears adapt 
to the volume level, so a volume level 
that does not cause discomfort might 
still damage your hearing.
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To amplify your keyboard’s sound, you can 
connect it to an optional external amplifier 
using an audio cable with a 
1
/
4
-inch (6.35 
mm) plug (not supplied). To connect an 
external amplifier to your keyboard, insert 
the cable’s plug into 
PHONES/OUTPUT 
on 
the back of the keyboard, then connect the 
other end of the cable to the amplifier’s input 
jack(s) (such as AUX IN or TAPE IN). Your 
local RadioShack store sells a full line of 
amplifiers, speakers, and cables. 
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To easily view sheet music while playing 
your keyboard, insert the supplied sheet 
music stand into the slot on the top back 
panel.
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Preset 4-Band Equalizers — 
lets you easily set the tone to 
your favorite sound mix 
(Standard, Jazz, Rock, 
Dance, Classic, Mellow, 
Bright, and so on). You can 
even tailor the response of 
each frequency band (see 
“Using the Equalizers” on 
Page 7).
Registration Memory — lets 
you store up to 32 different 
setups of the keyboard’s 
controls, so you can instantly 
recall them when you need 
them (see “Using the 
Registration Memory” on 
Page 14).