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QW-3403
7. TESTING: MODULE QW-3403
7-1. MEASURING CURRENT CONSUMPTION
�) Apply a voltage of 3.0 V.
2) Perform AC.
3) Wait two seconds.
4) Measure the current consumption.
The current consumption should be 2.21 μA or less.
7-2. CHECKING THE MODEL
CHECKING THE LCD SEGMENTS
Timekeeping mode
ACCURACY CHECKING
MODEL CHECKING
+
+
Except for
Except
for
Any Button
Except for
All lit
Light alternates
Except
for
TIME ZONE CHECKING
Note:
• The watch returns to the Timekeeping mode when it is left untouched for 1 to 2 hours after the last
button operation. (Auto Return)
• The watch returns to the Timekeeping mode when the alarm goes off.
•
The Auto Light function is disabled when the watch enters the test mode.
7-3. ACCURACY CHECKING
�)
While in the Timekeeping mode, hold down
A
and press
D
and
C
at the
same time.
2) Then all the segments are displayed and the LCD drive signals are changed
to the test signals so that you can check the accuracy with a quartz timer.
Measure the accuracy value in the following conditions.
SENSOR
GATE TIME
LCD
2 seconds
3)
Exit the Accuracy Checking mode.
• Press
D
to go to Model checking mode.
• Press any button except for
D
to return to the Timekeeping mode.