Brother LK3-B434E MKII Instruction Manual page 67

15. TABLE OF ERROR CODES
Code
E-80 Motor PROM is not correctly inserted.
Foot switch was depressed when the
E-81
power was turned on.
An operation panel switch was depressed
E-82
when the power was turned on.
Abnormal drop in power supply voltage,
E-90 or power was turned on again
immediately after it was turned off.
E-91 Abnormal rise in power supply voltage.
Home position cannot be detected
E-A0 (malfunction of home position sensor), or
malfunction of power supply circuit board.
You tried to change the program number
E-b0
when DIP switch A-8 was set to ON.
E-b1 No sewing data available.
E-d0 Heat sink of control circuit board is abnormally hot.
Malfunction of EEPROM (malfunction of
E-E0
main circuit board).
Corrupted EEPROM data, or main PROM
E-E1
version has been upgraded.
Corrupted EEPROM control information
E-E2
data.
Solenoid short-circuit (malfunction of main
E-F0 circuit board), or power relay is not operating
(malfunction of power supply circuit board).
Bad connection in cable between power
E-F1
supply circuit board and main circuit board.
Abnormal current detected in power
E-F2
supply circuit board.
Errors generated when optional equipment is connected
Code
E-14 Thread breakage detected.
E-15 Air pressure drop error.
E-16 Bobbin thread sensor mechanism error
REFERENCE segment LED alphabet
Panel display
Text display
61
Cause
Cause
A b c
LK3-B434E Mark II
Remedy
Turn off the power and check.
Turn off the power and check.
Turn off the power and check the operation panel.
Check that all panel cords are normal.
Turn off the power and check the input voltage. After turning
off the power, wait 3 seconds or more before turning it on
again. (Refer to "10-13. Checking the input voltage".)
Turn off the power and check the input voltage.
(Refer to "10-13. Checking the input voltage".)
Turn off the power and check the connection of
home position sensor connector P1.
Press the RESET switch. Set DIP switch A-8 to OFF
before trying to change the program number.
Replace the PROM with one which contains sewing
data.
Turn off the power and clean the air intake port of the box.
Turn off the power, and turn it back on. If the error
continually occurs, contact a qualified service technician.
Press the RESET switch to reset the error. However, the
data (memory switches, display and user programs)
will be reset to the backup data or initialized.
Press the RESET switch to reset the error. However,
the data (memory switches, display and user
programs) will all be initialized.
Turn off the power and contact a qualified service
technician.
Turn off the power and check if connectors P16 is
disconnected.
Turn off the power and contact a qualified service
technician.
Remedy
Turn the EMERGENCY STOP switch clockwise to
release the lock, and then press the RESET switch
to reset the error. You can then press the BOBBIN.
WIND switch to repeat the sewing.
Turn off the power and check. If drops in air
pressure are not being detected, clear all memory
settings and then set the memo-1d switch to OFF.
Turn off the power and check. If the bobbin thread
amount is not being detected, clear all memory
settings and then set the memo-24 switch to OFF.
d E F 6 H L o