Roberts Radio 32-2054 Musical Instrument Amplifier User Manual


 
15
Operation
Operation
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To power the amplifier from your vehicle’s 12V
battery, plug the supplied DC power cable’s barrel
plug to the DC 12V IN jack, and then connect the
other end to your vehicle’s 12V accessory socket,
such as a cigarette-lighter socket.
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If the amplifier does not operate from a 12V battery
source, check the fuse in the cigarette lighter plug.
If the fuse is blown, remove the cap of the plug and
replace the fuse with the proper type and rating
(6A/250V).
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Follow these steps to use your amplifier.
1. Set the ON/OFF switch to the ON position.
2. Start the input sound source.
3. Set MASTER VOLUME approximately to the
mid-position. The LEVEL indicator on the front
panel flashes from the left to the right showing
the sound level.
4. Adjust the following controls to the desired
volume and balance: MIC 1, MIC 2,
PHONO/AUX, 100Hz, 1kHz, 8 kHz
5. After you get the desired balance, adjust the
MASTER VOLUME to the desired volume
level.
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To monitor the sound sources, insert the 1/4-inch
(6.35 mm) plug of either mono or stereo headphone
(not supplied) into the amplifier’s PHONES jack
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Using headphones lets you easily check and adjust
the sound sources’ balance.
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To protect your hearing, follow these guidelines.
Always start by setting the volume to the lowest
level possible before you begin listening.
The lightning symbol is intended to alert you to
the presence of uninsulated dangerous voltage
within this product’s enclosure that might be of
sufficient magnitude to constitute a risk of
electric shock. Do not open the product’s case.
The exclamation symbol is intended to inform
you that important operating and maintenance
instructions are included in the literature
accompanying this product.
!
WARNING: To reduce the risk of fire or shock
hazard, do not expose this product to rain or
moisture.
..CAUTION..
CAUTION: TO REDUCE THE RISK OF ELECTRIC
SHOCK, DO NOT REMOVE COVER OR BACK. NO
USER-SERVICEABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED PERSONNEL.
RISK OF ELECTRIC SHOCK
DO NOT OPEN
!
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Your vehicle must have a
negative ground
electrical system. If you
are not sure, check with
your vehicle dealer.
Unplug the AC power
cord before you connect
the DC power cable.
Likewise, disconnect the
DC power cable before
you plug in the AC power
cord.
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