TSC MH241 Series - Page 28

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3.12 Replacing GPIO Interface Board (with Parallel Port)
1. Refer to section 3.2 to remove the electronics cover.
2. Refer to section 3.3 to remove the power supply unit.
3. Remove the original GPIO interface board (screws torque: 7.5 kg±15% kg-cm) or protective cover as below.
4. Install the GPIO interface board from the outside of interface board.
Protective cover
GPIO interface board