Brother BAS-311E service manual Chapter

Chapter 7

Error status		Probable causes	Check/repair/adjust	Parts to be replaced
	1.	With error code [E.12], the	• Check that connector P3 (HEAD) on the control	EM switch
		emergency stop switch is	circuit board is securely inserted and the	assembly
		activated, or it is defective.	emergency stop switch is correctly wired.
	2.	With error code [E.21], the	• Check that grounding is securely made and there	Control circuit
		machine is malfunctioning.	is no equipment that generates strong electrical	board
			noise nearby.
	3.	With error code [E.60], the panel	• Turn on the power again. If nothing changes,	Panel circuit
		circuit board is defective.	panel PCB is defective.	board
	4.	With error code [E.61], the	• Turn on the power again. If nothing changes,	Control circuit
�		control circuit board is defective.	control PCB is defective.	board
	5.	With error code [E.90], the power	• Check that the voltage of a socket is within ±10%
		supply voltage has sharply	of specified voltage.
		dropped.	• Refer to #d1-1, -1, -3
#1 The	6.	With error code [E.91], the power	• Refer to #1.1-5
		supply voltage has sharply risen.
power
lamp does
not light
when�the
	7.	With error code [E.c0], the [MT]	• Refer to #1.1-13	PROM
power is
turned on.		PROM on the control circuit
		board is defective.
	8.	With error code [E.c1], the box	• Check whether any thread scraps are not	Fan motor
		cooling fan (at the left when	entangled in the cooling fan.	assembly
		viewed from the front) is	• Check that connector P10 (FAN-R) on the control
		defective.	circuit board is securely inserted.
	9.	With error code [E.c2], the	• Clean the air intake of the control box.	Control circuit
		control box has overheated.	• The temperature detector is screwed into the	board
			heatsink on the control circuit board. Turn on the
			power after the temperature of the heatsink falls.
			If the error still appears, the control circuit board
			is defective.
			• Note: If the machine is operating with the control
			box open, the heatsink will overheat, resultantly,
			error [E.c2] will occur.

10. With error code [E.c3],	• Check that connector P7 (XPM) on the control	X pulse motor
overcurrent has occurred in X-	circuit board is securely inserted and the X-pulse	control circuit
pulse motor.	motor is securely plugged in.	board
	• Refer to #1.1-2

104 BAS-311E.311EL.326E.326EL