Replacing The Ioc Assy - Casio EX-843 Service Manual

C. Replacing the IOC ASSY
When the IOC PCB is replaced with a spare part one.
• Firmware is already installed on it.
• The fi rmware version is confi rmed at power on and, if necessary, it is automatically updated.
• UUID setting is not required.
C-1. Undo 11 screws and remove the CHASSIS/BOTTOM.
NOTE: There are two types of screws (S2 × 6, S7 × 4).
Supplementary explanation
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CHASSIS/BOTTOM
Screw (S2) 7
Screw (S7) 4
V-R200 / VER.1
H-4