Lcd Interface (Display) Board Replacement Procedure - Maritime Geothermal Nordic PC Series Installation And Service Manual

LCD Interface (Display) Board Replacement Procedure

1. Turn the power off to the unit.
2. Remove the display board cable connector from the
control board.
3. Using a sharp utility knife with a long blade, slice each
of the display board standoff heads off, taking care to
not damage the lexan cover.
4. Pull the display board from the unit.
5. Remove the display board cable connector from the back of the display board.
6. Place a new display board standoff into each of the four holes in the cabinet.
7. Remove the new display board from the static bag it was shipped in.
8. Connect one end of the display board cable to the back of the display board. Ensure the connector is properly
aligned and that no pins are showing.
9. Place the display board in position and align the four standoffs into the four holes of the board.
10. Push on each corner of the board until each standoff snaps in place, while pushing on the front of the standoff to
keep it from popping out of the cabinet hole.
11. Connect the other end of the display board cable to the control board, ensuring the connector is aligned properly and
that no pins are showing.
12. Turn the power on to the unit and verify the display works.
13. Once the display begins to scroll data, test each of the buttons to ensure they work. Push the Arrow button to enter
the Main Menu, then use the Up and Down to move through the list, then push the OK button to exit again. If any of
the buttons seem hard to press, repeat Step 10 and then test the buttons again.
ISSUE 03: 1-Oct-2021 Page 64 002291MAN-03