Cal. 7D56A
37/44
Technical guide
1. Apply the (-) probe of the tester to the (-)
terminal of the battery and (+) probe to the
CIRCUIT BLOCK COVER (A). Then, measure
the voltage of the RECHARGEABLE BAT-
TERY. (The obtained voltage is called the
“ initial voltage.”)
Notes:
* When applying the
(-)
probe of the tester to
the RECHARGEABLE BATTERY, take care not
to short-circuit the lead terminal (-) and the
RECHARGEABLE BATTERY CLAMP.
* If a short-circuit has occurred, leave the watch
untouched for more than 10 minutes, and
measure the voltage again, checking that a
stable measurement is obtained.
2. Close the case back tentatively, and swing
the watch from side to side 200 times at a
rate of 2 to 3 swings a second, making an arc
of approximately 20 cm.
l
Checking the automatic generating system
3. Within 3 minutes after swinging the watch, measure the voltage of the rechargeable battery in the
same manner as in step “1” above.
4. Refer to the table below, and decide whether the automatic generating system is normal or defec
-
tive.
[Initial voltage and guidelines of normal/defective decision]
* The guidelines specified in the above table apply only when the initial voltage is within the range
between 0.45 V and 1.2 V.
* The amount of electricity generated by swinging the watch varies depending on the manner in
which you swing it, such the rate of swinging and the size of the swinging arc. Please note, there-
fore, that checking through the procedure above provides only the guideline of normal/defective
decision.
Initial voltage Guidelines of normal/defective decision
0.45-1.0 V After charging, the voltage of rechargeable battery has
increased 0.1 V or more from the initial voltage.
1.01-1.2V After charging, the voltage of rechargeable battery has
increased 0.05 V or more from the initial voltage.
(-)
(+)
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