User's Manual

39
Troubleshooting
When you encounter any problem, check the following items.
Symptom Cause Action
Check whether the battery runs out. Replace the battery with a new
one.
Nothing is displayed on the
LCD screen.
Check whether the polarities are
correct.
Make sure that the polarities are
correct.
Check whether the HOLD button is
set to ON.
Set the HOLD button to OFF.
Check whether the memory is full.
Delete unnecessary files.
Cannot record.
Check whether the battery runs out. Replace the battery with a new
one.
Check whether the HOLD button is
set to ON.
Set the HOLD button to OFF.
Check whether the product has the
saved files.
Check the file number.
Cannot playback.
Check whether the battery runs out. Replace the battery with a new
one.
Check the volume is set to 0. Control the volume.
Cannot hear sound through
the earphone.
Check whether the earphone is
connected firmly and correctly.
Connect the earphone firmly and
correctly.
Check whether the power is ON. Turn the power ON and connect to
the PC.
Check whether the driver is
installed.
Install the driver.
Cannot download or upload
files.
Check the connection between
product and PC.
Connect the USB cable firmly and
correctly.