Lexmark E310 manual Operator Panel Service Check, 4044-XXX, Diagnostic Information, Action

4044-XXX

Operator Panel Service Check

Inspect the operator panel cable for damage. Make sure the cable is plugged in securely.

Run POST and check each LED for proper operation.

FRU	Action
Models E310 & E312	If more than one LED does not turn
Operator Panel	on or an individual LED stays on
Operator Panel Cable	solid during POST, check the
	operator panel cable for continuity.
	Replace if defective. If the cable
	measures continuity, replace the
	operator panel.
Models E310 & E312	If all LEDs are dim and operate
Operator Panel	erratically during POST or all LEDs
Operator Panel Cable	come on and stay on solid during
Controller Board	POST, replace the following FRUs
	one at a time in the order shown:
	Controller Board
	Operator Panel
	Operator Panel Cable
	If none of the LEDs come on, make
	sure the cable is properly connected
	to the operator panel and the
	controller board. Disconnect the
	cable and check it for continuity.
	Replace if necessary. If the cable
	measures continuity, measure the
	following voltages with the printer on
	at idle:
	U5-1: Ground
	U5-2: +5 V dc
	U5-3: +5 V dc
	U5-5: +5 V dc
	U5-6: Ground
	If these voltages are not correct,
	replace the controller board. If these
	voltages are correct, replace the
	operator panel.

Diagnostic Information 2-23