Filter
Top Products
17
TECHNICAL GUIDE
Cal. 5J32A
1. Connect the tester to the circuit block as shown in
the illustration.
How to measure the current consumption for the circuit block alone
Notes:
* Light may increase the current consumption, resulting in an inaccurate measurement. If the current
consumption exceeds the standard value, protect the movement from light with a black cloth or the
like after following step “3” above, and make a measurement again.
* When the current consumption for the whole movement exceeds the standard value while the current
consumption for the circuit block alone is within the standard value range, a driving pulse may be
generated to compensate for the heavy load applied on the gear train, etc. In that case, overhaul and
clean the movement parts, and then, measure the current consumption for the whole movement again.
“A” portion
2. With the tester connected to the circuit block, short-circuit “A” portion in the illustration and the input
pattern (–) with a conductive tweezers for approximately 1 second. The IC will be switched from the
quick start to the normal hand movement mode.
3. Checking that a stable measurement is obtained, read the current consumption.
Notes:
* The current consumption measurement for the circuit block alone is particularly susceptible to light,
and a value higher than the actual measurement may be obtained if the circuit block is exposed to light.
Protect the circuit from light with a black cloth or the like after following step “2” above, and then,
measure the current consumption.
* If the current consumption for the circuit block alone exceeds the standard value, the duration of the
charge will be shorter than specified. In that case, replace the circuit block with a new one.
● Checking the automatic generating system
1. Apply the probes of the tester as shown in the
illustration, and measure the voltage of the
rechargeable battery. The obtained voltage is called
the “initial voltage”.
Notes:
* When applying the minus 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 ten minutes, and
measure the voltage again, checking that a stable
measurement is obtained.