Motus M660BR, Service Manual

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3.3 How to Replace the MPU Board in Model M660BUL or M660BRL
Do the steps below while referring to the following Exploded Views in Appendix and Section
4
ELECTRONIC PCB, CONNECTOR AND CABLE OVERVIEW.
D.1 M660BU/BUL_CONSOLE POST
G.1 CONSOLE, M660BUL/BRL_CONSOLE
1) Turn off the unit power at the switch and then unplug the line cord at wall outlet.
2) Remove the DISPLAY REAR COVER (13, D.1) from the DISPLAY PANEL BOTTM (10, D.1)
by unscrewing four screws(8, D.1).
3) Remove four screws (11, D.1) securing the DISPLAY PANEL TOP (12, D.1) to the DISPLAY
PANEL BOTTOM (10, D.1).
4) Lift off the DISPLAY PANEL TOP (12, D.1) while disconnecting all the cables from the
DISPLAY PANEL TOP (12, D.1) and then place the DISPLAY PANEL TOP (12, D.1) on the flat
and clean surface so that the LCD screen faces downward.
5) Disconnect all the cables from the MPU BOARD_FRONT (13, G1).
6) Remove three screws (7, G.1) securing the MPU BOARD_BACK (15, G.1) to the MPU
BOARD_FRONT (13, G.1).
7) Carefully lift the MPU BOARD_BACK (15, G.1) off the MPU BOARD_FRONT (13, G.1) so
that the pins on the both edges of the MPU BOARD_FRONT are not damaged or bended.
8) Remove four screws (12, G.1) and three HEXGON SPACER (14, G.1) securing the MPU
BOARD_FRONT (13, G.1) to the DISPLAY PANEL_TOP (1, G.1).
9) Lift off the MPU BOARD_FRONT (13, G.1)
10) Install new MPU BOARD_FRONT or MPU BOARD_BACK in reverse order.