Sharp EL-1750PIIIGY - Manual (Page 13)

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This machine can also be operated on AC power by
use of AC Adaptor. When the AC adaptor is
connected to the calculator, the power source is
automatically switched over from dry batteries to AC
power source.
AC adaptor: Model EA-28A
Make sure that you turn the calculator’s power off
when connecting or disconnecting the AC adaptor.
To connect the AC adaptor, follow steps
➀ and ➁ .
To disconnect the AC adaptor, simply reverse the
procedure.
HOW TO CONNECT THE AC ADAPTOR (OPTION)
CAUTION
Use of other than the AC adaptor EA-28A may
apply improper voltage to your SHARP calculator
and will cause damage.
EL-1750PIII(LCO)-Eng 04.9.15, 3:27 PM 11