Structure and Assembly/Disassembly 9-19
Fasten the screws according to the following procedures when installing anticlockwise.
a) Fasten 9 PT3X10 cross panhead tapping screws.
b) Fasten the trackball button board.
c) Check whether the buttons on the control panel are settled appropriately. The gaps
among the buttons should be well-distributed. The toggle buttons should be
upright. The buttons can be reset after being pressed.
d) Fasten 16 PT3X10 cross panhead tapping screws.
4. Pull the silicon button out from the control panel PCBA. Pull 35 silicon guide pin out of the
location hole, and remove the silicon button of the control panel.
he silicon button of the control panel
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