AC POWER OPERATION (OPTION)
AC adaptor: Model EA-28A
When the AC adaptor is connected to the calculator, the power source is automatically switched over from dry batteries to AC power source.
HOW TO CONNECT THE AC ADAPTOR
Notes: • When the calculator is not in use, be sure to remove the adaptor from the calculator and the wall outlet.
•Never use any other AC adaptor except
CAUTION
Use of other than the AC adaptor
AC adaptor 
connecting➁ terminal
➀ 
damage.
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.
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