Solar Cell-Pcb Ass'y Contact Checking; How To Check Tilt Sensor - Casio WVA-400D Service Manual And Parts List

6-3. SOLAR CELL-PCB ASS'Y CONTACT CHECKING

Check a Solar cell and PCB ass'y are contacted correctly by contact spring, when a module is
disassembled.
1. To enter TEST mode.
1) While pressing D button, press A and B buttons at the normal timekeeping mode.
2. Check a Solar cell and PCB ass'y contact in the following order.
1) Display side up and place the watch on the desk.
2) Check the display indicates as figure 2.
3) Display side down and place the watch on the desk more than two seconds.
Or go to a dark room and place the watch more than two seconds.
4) Check the display indicates as figure 3.
If "88" is not appeared on the display, disassemble again the module and check the contact spring
between the Solar cell and PCB.
A
C
ALM SIG SNZ DST
3. To exit from TEST mode
Press any button.

6-4. HOW TO CHECK TILT SENSOR

1) Press A, B and C buttons at the normal timekeeping mode.
2) Check the display indicates as figure 4.
3) Tilt the watch towards you more than 40 degrees.
4) Check the display indicates as figure 5.
ALM SIG SNZ DST
B
Press D, A and B buttons
D
Figure 1
Appear "88" on display.
Appear "TLT" on display.
Tilt the watch towards you
more than 40°
Figure 4
— 18 —
ALM SIG SNZ DST
Figure 2
Place the watch in a dark
room more than two seconds.
ALM SIG SNZ DST
Figure 3
Appear "88" on display.
More than 40°
ALM SIG SNZ DST
Figure 5