Testing: Module Qw-3403; Measuring Current Consumption; Checking The Model; Accuracy Checking - Casio G-Shock QW-3403 Service Manual & Parts List

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

Timekeeping mode
 
 

Except for
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
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
LCD
3) Exit the Accuracy Checking mode.
• Press to go to Model checking mode.
D
• Press any button except for
++
ACCURACY CHECKING

MODEL CHECKING
CHECKING THE LCD SEGMENTS
Any Button
Light alternates
GATE TIME
2 seconds
to return to the Timekeeping mode.
D
Except for


TIME ZONE CHECKING

and press and
A D C
– �� – �� – –
QW-3403

Except
for

Except
for
All lit
at the






