Step 1: Unscrew the screws that fix the upper end of the riser to the digital display, and then turn overthe display. Remove all the screws fixing the plastic part behind the digital display.
Step 2: Unplug all the communication wire terminals which connected to the display, remove all the screws that fix on the display, then take off the display, replace it with a new display, and tighten all the screws that fix the new display.
Step 3: Plug in the terminals of all communication lines. Cover the plastic part behind the digital display, screw on all the fixing screws on the plastic part, thenscrew on all screws that fix the riser and the digital display.