Prepare two adhesive EVA sponge cushions in approx. 10mm x 5mm size. Put them under the display module at both ends.

Stick the display module above sponge pads. Free module end must be at the spot with a perpendicular line on the board before a row of little back resistors. Display module screen must lie strictly in parallel with circuit board.

Insert the circuit board in casing, starting from power connector side. Plug in the power and check if display screen is arranged strictly in parallel with the glass window at the casing face side circuit board. If not, take the board out and correct the display module placement. If needed, repeat till screen is arranged correctly.