36
of 53
Follow these steps to replace the control board:
Step
Action
1
Switch off all powers of the unit
2
Unscrews the 12 torx screws holding the back cover in place and re-
move them
3
Unscrew 1 torx screw which fixed the controller
4
Pull the 2 with plastic tabs out and press them away from the centre of
control board, the control board now can be removed
5
Check if the E-PROM is the right version before mounting it on the new
control board. Compare with type sign.
6
Slide the new control board into the slide way. Make sure that it is
pressed backwards into the sockets by applying a moderate impact to
the front of the control board
7
Mount the back cover again
8
Switch on power
Back Cover
Control Box
Summary of Contents for DCU22-2000DH
Page 51: ...51 of 53 12 Appendix Dimension...
Page 52: ...52 of 53 Wiring diagram...
