Lexmark 4069-XXX manual XXX Service BIN

4069-XXX

990 Service - BIN X

	FRU	Action
1	D.C. Motor	Check the DC motor cable
	Mechanical Linkage	connector to be sure it is correctly
	Assembly	installed at J4 on the output
		expander option board. If correct,
		disconnect J4 from the option
		board and check the resistance of
		the motor on the cable connector:
		J4-1 to J4-2: measures between
		115 and 135 ohms. Also check J4-
		1 and J4-2 to the motor case for
		shorts. If either the resistance is
		incorrect or a short is found,
		replace the motor/mechanical
		linkage assembly.
		Note: If the DC motor is shorted, it
		may also be necessary to replace
		the control board.
2	Output Expander Control	Disconnect the motor cable J4
	Board	and check the voltages at J4 on
		the board.
		Note: Use caution not to short to
		adjacent pins on the connector.
		J4-1 (Motor Idle) +24 V dc
		J4-2 (Motor Idle) +24 V dc
		J4-5 (Motor Idle) +5 V dc
		J4-6 (Motor Idle) +5 V dc
		If any of the voltages are incorrect,
		replace the control board. If the
		voltages are correct, replace the
		DC motor/mechanical linkage
		assembly.

2-78Service Manual