The Singing Machine SMI-1420 - Manual (Page 5)

SETTING UP
E05
Power Supply
Your electronic keyboard will operate on either batteries or the supplied power adaptor.
Follow the instructions below according to the power source you intend to use.
Using the AC-Adaptor
Connect the power adaptor to the DC IN
jack located on the rear panel of the unit,
and plug the AC power adaptor into an
AC power outlet. Using Batteries
1. Open the battery compartment cover
located on the bottom of the unit.
2. Insert six “C” size, or equivalent
batteries. When inserting the
batteries, follow the polarity markings
in the illustration.
Note: We suggest using alkaline
batteries.
3. Close the battery compartment
securely.
Do not use adaptors other than the one
specified.
The technical specification of the adaptor
is DC 9V-12V 500mA output, center
positive type. Be sure to turn off the unit
before you connect the adapter into the
AC outlet and the cord into the unit. This
will automatically cut off the battery power
supply.
AC Adapter
AC Outlet
NOTE:
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Power will be automatically drawn from the AC adaptor if the optional AC adaptor is connected
while batteries are installed in the instrument.
It is recommended that you replace worn batteries as soon as possible. When battery voltage
drops, the display will dim and / or the sound will become distorted, when this occurs, replace
the batteries with a complete set of six new batteries of the same type.
NEVER mix old and new batteries, different types of batteries (alkaline, magnesium, etc.), different
brand batteries or batteries from the same brand but of different types. Misuse may cause the
instrument to become hot, result in fire, or battery leakage.
Also, to prevent damage due to battery leakage, remove all the batteries from the instrument
when it is not to be used for an extended period of time.
If batteries are installed in this instrument, and the instrument is unused for a long period. They
will loose their power.
CAUTION:
Using Headphones Or Connecting An Amplifier
An optional set of stereo headphones can be connected
to the PHONES/INPUT jack located on the rear panel.
When headphones are connected to the jack, the
internal speakers of the unit will switch off automatically
(Perfect for private practice or late night playing). If you
would prefer to use an external sound system, the
PHONE/INPUT jack can also be used to connect the
electronic keyboard set to a stereo system or mixing
console.
Turn off the power on all equipment before
making any connections.
Note:
ENGLISH