Brother BES-1240BC Instruction Manual page 269

Symptom
The lower shaft module is faulty.
Note:
The above operation will prohibit operation of the lower shaft connected to the faulty lower shaft PCB or the
faulty lower shaft module and cause the corresponding heads to pause. This is reset when the power of the
machine is turned on again. Start from the step 3 to prohibit the operation again.
1. Turn off the power of the machine.
2. Disconnect P1, P3, and P5 (for a fixed bed) or P2, P4, and P6 (for a
retract bed) connected to the lower shaft PCB from the faulty lower
shaft module.
3. Turn on the power of the machine.
The E-B2 error occurs and the green LED blinks for the bed
corresponding to the faulty lower shaft. Turn off the pause switch of
the head (flip it down) and keep flipping up the mending switch until
the green LED stops blinking.
4. When the LED of the corresponding head stops blinking, reset the
error with the STOP key on the panel or the step back key of the head.
BES-940BC • BES-1240BC
Chapter 12 Trouble Shooting
Measures
267