The IC recorder does not turn on or pressing any button does not work.
The batteries are running out of power. Replace them with new ones.
Make sure that the batteries are inserted with the correct polarity.
Your IC recorder is turned off.
Slide the HOLD•POWER switch to “POWER” and hold it until the display window turns on.
Your IC recorder is placed in the HOLD state.
Slide the HOLD•POWER switch to the center dot.