3. Power Supply
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This instrument has a two-way power system and may be oper-
ated using battery or AC power.
• Use 4 AA size dry batteries.
• Battery life may vary depending on battery type and use conditions.
• Music use (PLAY/REC mode) − 12 hours continuous.
• Calculator use (CAL mode) − 4,000 hours continuous.
* Above battery life is based on type UM-3.
• When the batteries are worn out the sounds may become
unstable or noise may be produced. In this case the batteries
should be replaced with new ones.
• To replace batteries, slide open the battery compartment
lid on the bottom of the instrument and insert new batteries
making sure that the + / - poles are properly aligned. Always
replace all 4 batteries to insure longer life.
• After replacing batteries, set the mode selector to “CAL” and
press the P button on the bottom of the instrument with a
pointed object.
• CAUTION — To prevent corrosion or damage, remove the
batteries when not using the instrument for long periods of
time.
Battery Use
