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Seiko 7B75 Manual

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At trouble Possible causes Solutions
Reference
Hand
Movement
The stopped seconds
hand pointing to the
45-second position
started operating.
The power save function has been
activated. (P.39)
When the watch is not exposed to
adequate light for a certain period of
time, the power save function to limit
energy consumption is automatically
activated.
1.
Fully charge the watch so that
the seconds hand may move at
one-second intervals.
2.
After that, if the watch displays
the incorrect time, receive a
radio wave as needed.
P.17,
P.36
The watch hands advance
rapidly unless a button is
pressed. After the rapid
advancement is
completed, the watch
resumes its normal
movement.
The power save function has been
activated. (P.39)
The automatic hand position alignment
function was activated. (P.66)
When the hand positions deviate to
display incorrect time as a result of
external influences, etc., the watch
automatically corrects the hand
misalignment by the automatic hand
position alignment function.
No operation is needed. (This is not a
malfunction.) -
EN 72
7
TROUBLESHOOTING
At trouble Possible causes Solutions
Reference
Reception
of a radio
signal
The watch is unable to
receive a radio signal.
The reception results have
failed and the seconds
hand points to N (the watch
does not receive a radio
signal).
The watch was moved while it was
receiving a radio signal.
(It takes 12 minutes at the longest to
receive a radio signal successfully.)
Do not move the watch while it is
receiving a radio signal.
Because it takes time to receive a radio
signal successfully, leave the watch
untouched for 12 minutes at the longest.
P.23,
P.59
The watch was left where the radio
signal was weak or where it was unable
to receive a radio signal. (P.24)
Place the watch where it is able to easily
receive a radio signal. P.23
Transmitting stations may have
stopped transmitting radio signals for
some reason. (Transmission stop)
Check the website of each transmitting
station for further information
concerning a transmission stop.
Attempt to receive a radio signal again
after a while.
P.25
The time zone is set to a region other
than the radio signal reception range.
1. Check the selected time zone and
select the correct time zone.
2. When the watch is not displaying the
precise time, receive a radio signal
again if necessary.
P.17,
P.30
EN 73
7
TROUBLESHOOTING
At trouble Possible causes Solutions
Reference
Charging
the solar
battery
The stopped watch was
exposed to an
adequate light for
longer than “the time
required to fully charge
the watch”, however, it
does not resume its
normal one-second
interval movements.
The amount of exposed light is too
weak.
The time for charging the watch is not
sufficient.
The time required for charging the
watch depends entirely on the amount
of exposed light the watch receives.
Refer to “Guide to charging times” to
charge the watch.
P.37
The built-in IC of the watch has fallen
into an unstable condition.
Refer to “In case of an abnormal
movement” to reset the system. P.78
Misalignment
of the time
and hand
positions
The watch temporarily
gains or loses time.
The watch has been left in an extremely
high or low temperature place for a long
time.
1. When the watch returns to a normal
temperature, it will display the
precise time as before.
2. If the watch still gains or loses the
time, conduct manual reception if
necessary.
3. If the watch cannot resume normal
movement even after conducting
the above mentioned procedures,
consult the retailer from whom the
watch was purchased.
P.58
EN 74
7
TROUBLESHOOTING
At trouble Possible causes Solutions
Reference
Misalignment
of the time
and hand
positions
The reception results are
successful, but the precise
time is not displayed.
The watch fails to receive a radio signal
correctly as a result of external
influence. (Incorrect reception)
1. Place the watch where it is able to
receive a radio signal more easily.
2. Conduct manual reception if
necessary.
P.23,
P.58
The hand positions were misaligned as
a result of external influence.
The hands are out of the preliminary
position as a result of external
influence.
“Preliminary position” → P.66
1. The automatic hand position
alignment function will operate, and
these will be corrected. Continue to
use the watch normally. The
automatic hand position alignment
function operates every 12 hours (at
12 AM and 12 PM) for the hour and
minute hands, and every minute for
the seconds hand. If urgent, perform
manual time adjustment.
2. If the watch still gains or loses time,
refer to “In case of an abnormal
movement” to perform procedures.
3. If the watch cannot resume normal
movement even after conducting
the above mentioned procedures,
consult the retailer from whom the
watch was purchased.
P.66,
P.78
The seconds hand position
is not correctly aligned in
“the reception results
display” or “the reception
level display.”
The seconds hand is out of the
preliminary position as a result of
external influence.
“Preliminary position” → P.66
EN 75
7
TROUBLESHOOTING
… 20


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