Brother BAS-311E service manual Chapter, switches, pressed, #1.2

Chapter 7

Error status		Probable cause	Check/repair/adjust	Parts to be replaced
	11. With error code [E.c4],		• Check that connector P6 (YPM) on the control	Y pulse motor
		overcurrent has occurred in Y-	circuit board is securely inserted and the Y-pulse	control circuit
		pulse motor.	motor is correctly wired.	board.
			• Refer to #1.1-2
	12. With error code [E.c5], the box		• Refer to #1.1-8 [E.CI]	Fan motor
		cooling fan (at the right when	• Check that connector P25 (FAN-L) on the control	assembly
		viewed from the front) is	circuit board is securely inserted.
		defective.
	13.	With error code [E.E0], the [MN]	• Check that the PROM of the control circuit board	PRON
		PROM on the control circuit	is securely inserted and its leads are not bend.
		board is defective.	• Check that MN and MT of the PROM are matching
			those on the main PCB.
#1 The
power
lamp does
not light			• If the PROM has no problem, check the	Panel code
�			connection between pin 3 in connector P18
when the
power is			(PANEL) on the control circuit board and pin 5 in
turned on.			connector P5 (DRV) on the panel PCB.
	14.	With error code [E.F0], the relay	• Check that the PER code is securely inserted (refer	Power PCB
		on the power PCB is not	to #1.1-15). If the error appears, replace the
		working.	power PCB with a new one.
	15.	With error code [E.F1], the cord	• Check that connector P2 (PER) of the power PCB	PER code.
		is not securely inserted.	and connector P20 (PER) on the main PCB are
			securely inserted. Check there is no damage in
			wiring.
	16.	With error code [E.F2],	• Find a cause of noise. (Refer to #1.1-2.)	Power PCB
		overcurrent has occurred in	• Replace the power PCB . (Refer to #1.1-14.)
		power PCB.
	1.	Panel PCB is not correctly	• Check whether the panel setting plate makes
		attached.	contact with a switch.
#1.2
No
switches	2.	Panel PCB is defective.	• Refer to #1-7	Panel circuit
on the
				board
panel are
not
activated.
	3.	Programmer detective.	• Pull out the programmer. If a switch is activated,	Programmer
			the programmer is defective.
#2	1.	With error code [E.40], the cord	• Check the connections and pins between	FDD Harness
If the R/W		or the floppy disk drive (FDD) is	connector P1 on the panel PCB and the FDD, and
switch is		defective.	between connectors CH1 and CH2 on the panel
pressed,			PCB and the FDD.
the			• Replace the floppy disk drive.	Floppy disk drive
indicator
lamp is not
lit and an
error code
appears.

BAS-311E.311EL.326E.326EL 105