Casio EX-S3 Service Manual page 20

4. Remove the FPC.
6. Remove two connectors.
8. Remove the LCD unit.
9. Remove the FPC and then unsolder the
two lead wires.
FPC
FPC
connectors
Lead wire
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5. Remove the switch unit.
7. Remove the FPC.
FPC (When assembling, make sure to fix it tightly.)
10. Remove the sub PCB from the main PCB.
* When assembling, make sure to fix the sub PCB to
the main PCB tightly.
Lead wire (black)
Lead wire (red)