Casio EX-Z4 Service Manual & Parts List page 25

13. Remove the three screws.
14. Remove the hook.
16. Remove the FPC and unsolder the two lead wires.
black
FPC
18. Unsolder the three lead wires and remove the SUB PCB.
yellow
white
screws
red
green
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15. Remove the battery cover.
17. Remove the two screws.
screws
screw