Casio MT-640 User Manual

2 Power Supply
e Dry batteries |
This unit can be powered by six D size (SUM-1/R20P) manganese dry cell bat-
teries. Weakened batteries will result in lower volume or poor tonal quality.
The power indicator lamp will gradually lose its brightness when battery
power weakens. At this time, change batteries or shift to one of the alter-
nate power sources mentioned below. |
Battery replacement: | | ,
4
(@) Open the battery compartment cover on the bottom of the unit and take
out used batteries. | | ee
(2) Load new batteries taking care that polarity is correct. .
* It is advisable to replace all six batteries at the same time for longer battery life. ;
* Standard battery life is approximately 6 hours. |
¢ Car battery
With the car battery adaptor (CA-5, optional), DC power is supplied from
a car battery through the cigarette lighter socket.
An AC adaptor (AD-5, optional) is required when using household current. Use
only a genuine CASIO adaptor with the same voltage rating (100, 117, 220, or 240)
as the power supply in your area to prevent component damage. Plug the AC
adaptor into the AC outlet and the cord into the unit. This will automatically
cut off the battery power supplly. ° : Be ag 3 |
Sag
AC adaptor AD-5
eg “AC outlet -''
AC adaptor jack
Cigarette lighter socket
Car battery adaptor CA-5
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NORE ARERR CR EO te 4. ee eA
2. Power Supply
* Auto power off function
Power
is
automatically
cut
off
approximately
6
minutes
after
the
last
opera-
tion
of
the
unit.
Power
supply
can
be
restored
by
switching
power
OFF
and
then
ON
again.
co
oe
4
|
7
CAUTION
*
Use
only
genuine
CASIO
adaptors
to
avoid
risk
of
damage.
*
Remove
batteries
from
the
battery
compartment
when
the
unit
is
not
used
for
extended
periods.
(Battery
leakage
can
damage
electrical
parts.)
*
The
adaptor
may
become
warm
when
left
connected
to
an
outlet.
This
is
normal,
but
the
adaptor
should
be
disconnected
when
not
in
use.
“
THE
FOLLOWING
CONDITION
CAN
CAUSE,
BATTERIES
TO
BURST:
1.
Use
of
adaptors
other
than
genuine
CASIO
adaptors.
:
2.
Loading
batteries
with
polarities
reversed.'
=
General
Operation
*
Refer
to
the
general
guide
found
on
page
4-5
for
exact
locations
of
this
keyboard
controls
and
connections.
@)
Turn
the
power
switch
ON.
(2)
Adjust
the
volume
level.
get
sas
r
|
(3)
Select
one
of
20
preset
tones
(see
“Preset
Tones”,
page
9)
or
one
of
210
Tone
Bank
sounds
(see
“Tone
Bank
Sound
Combinations”,
page
12).
(4)
Now,
start
playing.
se

Casio MT-640 Specifications

General

Brand	Casio
Model	MT-640
Category	Musical Instrument
Language	English