Replacing Cpu Board - Epson RC520 Manual

Maintenance 4. Control Unit
(6) Disconnect the flat cable from the CPU board.
(7) Remove the mounting screw for the MIB and remove the MIB from the slot in the
(8) Disconnect the cable from the MIB while releasing the connector lock as shown
(9) Set the jumpers on the new MIB exactly the same as on the old board.
(10) Connect the cable from the system panel to the new MIB.
(11) Mount the new MIB into the same option slot in the Control Unit and fasten the
(12) Connect the flat cable that was disconnected from the CPU board in step (6). For
(13) Mount the board holder assembly to the Control Unit.
(14) Place the Top Cover of the Control Unit back on and secure it with four screws.
(15) Connect the motion cable to the MIB.

4.3 Replacing CPU Board

To replace the CPU board, follow the steps below.
(1) Shut down Windows. Turn OFF the Control Unit and Drive Unit.
(2) Disconnect the cables of the CPU board from the back of the Control Unit.
(3) Remove four Top Cover screws on the back of the Control Unit.
(4) Remove the Top Cover from the Control Unit.
(5) Remove the four mounting screws for the board holder assembly and remove it.
(6) Disconnect seven cables from the CPU board. (HDD, FDD, Parallel Port, COM1,
136
Control Unit.
below.
Refer to the Setup & Operation 10. Jumper Settings for MIB (Motion Interface
Board) for details on the jumper settings.
mounting screw to secure the new board.
the cable connection, refer to the Maintenance 4.3 Replacing CPU Board.
COM2, USB and Front Panel)
RC520 Rev.7