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Service Guide OL400
Chapter 3 Maintenance & Disassembly
3.2.06 Engine Controller Circuit Board (LLAB)
1. Perform these procedures:
3.2.01{
}
3.2.03{
}
3.2.04{
}
3.2.05{
}
2. Disconnect the cables (1) from connectors J1, J2, and J5.
3. Open the LED holder to allow access to the engine board mounting screw (2) and remove the
mounting screw.
4. Close the LED holder and raise the upper unit.
5. Remove the two remaining mounting screws (3).
CAUTION:
Be careful not to lose the plastic spacer (4) located between the shield frame and the engine
controller board. When installing the engine controller board, be sure that the spacer is in place or
the engine controller board will short against the shield frame.
6. Lift the engine controller board (5) to disconnect it from the interconnect board (6).
7. On the engine controller board, press the pawls (7) to unlock and remove the print board cover
(8).