Power Supply; Using Batteries - Casio LD-50 User Manual

Power Supply

This digital drum can be powered by current from a standard household wall outlet (using the specified AC
adaptor) or by batteries. Always make sure you turn the digital drum off whenever you are not using it.

Using Batteries

Always make sure you turn off the digital drum before loading or replacing batteries.
To load batteries
1.
Remove the battery compartment cover.
2.
Load 6 AA-size batteries into the battery compartment.
• Make sure that the positive (+) and negative (–) ends are facing correctly.
3.
Insert the tabs on the battery compartment cover into the holes provided and
close the cover.
The digital drum may not function correctly if you load or replace batteries with power turned on. If this
happens, turning the digital drum off and then back on again should return functions back to normal.
Important Battery Information
The following shows the approximate battery life provided by different battery types.
• Standard battery life: Approximately 5 hours (AM3/LR6)
Both of the above values are standard battery life at normal temperature, with the digital drum volume at
a medium setting. Temperature extremes or playing at very loud volume settings can shorten battery life.
Any of the following symptoms indicate low battery power. Replace batteries as soon as possible
whenever any of the following occurs.
• Instrument does not turn on
• Dim, difficult to read display
• Abnormally low speaker/headphone volume
• Distortion of sound output
• Occasional interruption of sound when playing at high volume
• Sudden power failure when playing at high volume
• Dimming of the display when playing at high volume
• Abnormal rhythm pattern and demo tune play
• Dimming of digital drum lights when notes sound
Caution!
Improper handling of batteries can cause them to burst and leak, which creates the danger of personal injury or
damage due to contact with battery acid. Be sure to note the following important precautions.
• Always make sure that the positive (+) and negative (–) poles are facing correctly as indicated inside the
battery compartment.
• To avoid damage caused by leaking batteries, be sure to remove batteries from the digital drum whenever you
leave it unattended for long periods (such as when leaving on a trip).
• Never mix batteries of different types.
• Never mix old batteries with new ones.
• Never discard batteries by incinerating them, do not allow their poles to be shorted (connected to each other),
never take batteries apart, and do not expose batteries to direct heat.
• Replace batteries as soon as possible after any sign they are getting weak.
• Never attempt to recharge batteries.
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