The side button on the faceplate of the OJ touch screens doesn't respond. No "click" is felt when pushing.
Turn upside down to see electronic card, scew hole at bottom
Use T10 screwdriver to loosen 3 screws securing card to housing. Do not remove the screws.
Move board to the left.
Feel for "click" when pushing button.
Click = reinstall faceplate and test for operation. If unit functions, problem fixed.
No click = replace unit.
See picture attached.