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. Try charging the device first. Also,
nothing is displayed if the battery runs out. Make sure you
charge the battery before use.
U
“Charging the device” on page 16
The device does not react even
after performing an operation.
Is the battery running low? Charge the battery.
U
“Battery levels” on page 24
If the device does not operate after charging, try resetting the
system.
U
“Performing system resets” on page 87
The screen turns off or turns blue
during use.
Perform a system reset.
U
“Performing system resets” on page 87
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 a button is pressed or you move the
device. If the display is not restored, the battery is running low.
Charge the device.
U
“Charging the device” on page 16
Note that the clock does not turn off if
AUTO SLEEP
is disabled.
U
“AUTO SLEEP” on page 77
The time is not set correctly.
Set "Time Adjust" from Sys. Settings.
U
“UPDATE TIME” on page 77
If the hour is different, check the time zone and daylight-saving
time.
U
“Clock Set” on page 77
Measurement stops while
exercising.
When exercising slowly, such as when walking, we recommend
turning off the AT Pause function.
U
“Pausing and resuming measuring automatically (AT Pause)”
on page 46
J-347/367, U-350 User Manual
Regular Maintenance
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