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Watch Operation Guide 5728
Troubleshooting
Signal Reception (Time
Calibration Signal)
Q1
The watch cannot perform a receive
operation.
Is the watch's battery charged?
Signal reception is not possible while
battery power is low. Keep the watch
exposed to light until it recharges
sufficiently.
Charging
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Is auto time correction enabled?
Time signals cannot be received while
auto time correction is disabled. Enable
auto time correction.
Using CASIO WATCHES to Configure
l
Settings
Using Watch Operations to Configure
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Settings
Is your Home City setting correct for your
location?
The watch will not indicate the correct time
if the Home City setting is wrong. Change
your Home City setting so it correctly
reflects your location.
Setting a Home City
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After checking the above, the watch still
cannot perform a receive operation.
Time calibration signal reception is not
possible under the conditions described
below.
When watch is at Level 2 power saving
●
When the crown is pulled out
●
While the watch is paired with a phone
●
For information about unpairing, see
"Unpairing".
If successful reception is not possible for
some reason, you can adjust the time and
day settings manually.
Q2
The signal receive operation always
fails.
Is the watch in a location that is appropriate
for signal reception?
Check your surroundings and move the
watch to a location where signal reception
is better.
Appropriate Signal Reception Location
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Did you avoid touching the watch while the
receive operation was in progress?
Minimize movement of the watch and do
not perform any watch operation while a
receive operation is in progress.
Is the signal transmitter in your area
transmitting a signal?
The transmitter of the time calibration may
not be transmitting a signal.
Try again later.
Q3
Signal reception should have been
successful, but the watch's time and/
or day is wrong.
Is the time zone where you are using the
watch specified correctly?
Specify the time zone where you are using
the watch.
Setting a Home City
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Is the hand and/or day indicator alignment
correct?
Adjust hand and/or day indicator
alignment.
Adjusting Hand and Day Indicator
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Alignment
After checking the above, the time and/or
day settings is still wrong.
Adjust time and day settings manually.
Using Watch Operations to Adjust the
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Time Setting
I can't pair the watch with a
phone.
Q1
I've never been able to establish a
(pairing) connection between the
watch and phone.
Are you using a supported phone model?
Check if the phone model and its
operating system are supported by the
watch.
For information about supported phone
models, visit the CASIO Website.
https://world.casio.com/os_mobile/wat/
Did you install the CASIO WATCHES
phone app on your phone?
The CASIO WATCHES phone app needs
to be installed on your phone in order to
connect with the watch.
Install the required app on your
l
A
phone.
Are your phone's Bluetooth settings
configured correctly?
Configure the phone's Bluetooth settings.
For details about setting procedures, see
your phone documentation.
iPhone Users
"Settings"
"Bluetooth"
n
n
●
"Settings"
"Privacy"
n
n
●
Sharing"
"CASIO WATCHES"
n
Android Users
Enable Bluetooth.
●
Other than the above.
Some phones need to have BT Smart
disabled to use the CASIO WATCHES
phone app. For details about setting
procedures, see your phone
documentation.
On the Home Screen, tap: "Menu"
"Settings"
"Bluetooth"
n
n
"BT Smart settings"
"Disable".
n
On
"Bluetooth
On
n
n
"Menu"
n
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