User`s guide

Problem Solving
Check each item.
Problem Solution
Basic actions The screen is not displayed. You cannot start using the device immediately
after purchase until the device is charged. Also,
nothing is displayed if the battery runs out. Charge
the device.
U “Charging” on page 22
The device does not react
even after performing an
operation.
Is the battery running low? Charge the battery.
U “About the Battery” on page 27
If the device does not operate after charging, try
resetting the system.
U “Resetting the System” on page 118
The screen turns off or turns
blue during use
Perform a system reset.
U “Resetting the System” on page 118
The clock turns off. When you leave the device for a while, it enters
sleep status and the time display turns off. This is
not a malfunction as the display is restored the
next time you move the device. If the display is not
restored, the battery is running low. Charge the
device.
U “Charging” on page 22
Also, if Auto Sleep is set to off, the clock does not
turn off.
U “Sys. Settings” on page 93
The time is not set correctly. Set "Time Adjust" from Sys. Settings.
U “Sys. Settings” on page 93
If the hour is different, check the time zone and
daylight-saving time.
U “Sys. Settings” on page 93
Measurement stops while
exercising.
When exercising slowly, such as when walking, we
recommend turning off the AT Pause function.
U “Automatically Start/Stop Measuring (AT
Pause Function)” on page 57
SF-710/510/310 User's Guide
Troubleshooting
115