215
9. Carefully remove the three circuit board
connectors (Figure 159).
10. Remove the faulty display screen
assembly and discard it.
11. Position the replacement display screen
on the EFM, then reattach the three circuit
board connectors.
12. Reattach the four screen retaining screws
on the back of the EFM.
13. Connect the banjo fi tting to the side of the
hypoxic guard.
14. Connect the four gas fl ow tubes to the
EFM.
15. Connect the light pipe to the circuit board.
16. Connect the ribbon cable and the power connector to the EFM.
17. Replace the EFM on the machine and secure it with the four retaining
screws (two one each side).
18. Replace the three system covers.
19. Power up the system and verify that the EFM display is functional.
EFM Option
Figure 159 - Screen-Circuit
Board Connectors (3)