6
About Batteries
Remove the battery compartment cover located on the bottom of the SP-
404SX, and insert the batteries in the correct polarity (direction) as marked
inside the battery compartment. Then close the cover securely.
NOTE
• Battery handling
Incorrect handling of batteries, rechargeable batteries, or a battery charger can cause leakage, overheating,  re, or explosion. Before use, you must read and strictly
observe all of the precautions that accompany the batteries, rechargeable batteries, or battery charger.
When using rechargeable batteries and a charger, use only the combination of rechargeable batteries and charger speci ed by the battery manufacturer.
• When turning the unit upside-down, get a bunch of newspapers or magazines, and place them under the four corners or at both ends to prevent damage to the
buttons and controls. Also, you should try to orient the unit so no buttons or controls get damaged.

When the batteries run low

When the batteries run low, the display’s illumination will turn o , and the dot in the lower right of the display and
the [FUNC] button will start blinking. If the batteries run down completely, “Lo” appears in the display and no further
operations will be possible. If this occurs, replace the batteries immediately.
MEMO
When the remaining battery capacity decreases, the sound may be distorted when the [VOLUME] knob is in certain
positions. If this occurs, replace the batteries.

Types of Batteries That Can be Used

with the SP-404SX

You can use the following types of batteries
with the SP-404SX.
Do not use any other type of batteries.
• Alkaline AA SIZE Dry Battery
• Ni-MH AA SIZE Rechargeable Battery

Specifying the type of batteries used

You’ll need to specify the type of batteries you’re using
(alkaline or Ni-MH rechargeable). The SP-404SX will
calculate its remaining battery power based on the setting
you make here.
1. While.holding.down.the.[FUNC].button,.turn.on.
the.power.
2. Turn.the.[CTRL.3].knob.to.specify.the.type.of.
batteries.you’re.using.
The [REC] button will blink when you turn the knob.
Value Description
AL Alkaline dry battery
ni Ni-MH rechargeable battery
3. Press.the.[REC].button.to.con. rm.the.setting.
MEMO
This setting will be remembered even while the power
is turned o .

Checking the Remaining Battery

Power

1. Make.sure.that.the.[PATTERN.SELECT].button.is.
unlit.
If it’s lit, press the [PATTERN SELECT] button to turn it o .
2. Press.the.[REMAIN].button.
While you hold down the button, the remaining battery
power is indicated by the number of BANK buttons that
are lit. If only the BANK [A/F] button is lit, it’s time to
replace the batteries. A while after this indication, the
display will indicate “Lo,” and it will no longer be possible
to operate the SP-404SX.
MEMO
When the power is on with the AC adaptor connected,
all of the [BANK] buttons will be lit.

About Sleep Mode

If you’ve selected the “SLP” (sleep) setting in “Display
illumination and sleep settings” (p. 40), all of the SP-404SX’s
buttons will go out when it has not been operated for ap-
proximately  ve minutes, and it will enter Sleep mode. This
will extend the battery life when operating on batteries.

Specifying the type of batteries used