Preparation; Power Supply - Medeli M20 Instruction Manual

Power Supply

Preparation

This electronic keyboard can be powered by the current
of a standard household wall outlet (using the specified
AC adaptor) or by batteries.
1. Using the AC Adaptor
Make sure that only the AC adaptor specified for this
electronic keyboard is used. The adaptor shall be 12V
DC output, center positive type. Be sure to turn off the
electronic keyboard before you connect the adaptor into
the AC wall outlet and the cord into the unit.
2. Using Batteries
Always make sure to turn the keyboard off
inserting new batteries or replacing old ones.
To insert batteries
Open the battery compartment on the bottom
keyboard.
Insert 8 D-size (SUM-1, R-20) batteries into the
compartment and follow the correct polarity.
Replace the compartment cover and make sure that it
locks firmly in place.
Low battery indications
Any of the following symptoms indicate low battery
power. Replace the batteries as soon as possible if any
of the following occurs.
A dim and difficult-to-read LCD display.
Abnormally low speaker/headphone volume.
Distortion of the sound output.
Sudden power failure when playing at high volume.
Abnormal rhythms or demo songs are played.
Dimming of the display when playing at high volume.
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2015 3 30 17:11:44
AC Outlet
AC Adaptor
CAUTIONS!
before
Use only the specified AC adaptor. Using other types
of adaptor creates the risk of fire and electrical shock.
For safety sake, be sure to unplug the AC adaptor
from the wall outlet whenever leaving the electronic
keyboard unattended for a long time.
of the
battery
CAUTIONS!
When inserting batteries, make sure to follow the
polarity marking.
Never use batteries of different types.
Never mix old batteries with new ones.
Replace the batteries as soon as possible after any
sign of discharge.
Always remove the batteries from the battery
compartment when the keyboard is not expected to
be used for a long period of time.
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