Brother KE-430B Service Manual page 177

Code
Floppy disk is not inserted or operation panel
E.40
cable is not securely connected.
E.41
Invalid program No., or no data.
E.43
Different floppy disk!
Error occurred during floppy disk data
E.4F
reading.
E.50 Floppy disk is write-protected
E.51
Insufficient available memory on floppy disk.
E.52
Can not format this floppy disk.
Error occurred during data writing on floppy
E.5F
disk.
E.60
Can not backup data. (Panel PCB)
E.61
Can not backup data. (Control PCB)
E.62
Operation panel error.
Combination of control PROM and operation
E.63
panel PROM is invalid.
Upper thread has broken. (Rotary type
E.80
sensor)
Upper thread has broken. (Optical fiber type
E.81
sensor)
Power supply voltage is extremely low, or
E.90
power was turned on again immediately after
it was turned off.
E.91
Power supply voltage is extremely high.
Start switch was pressed when there was no
E.A0
sewing available data.
Can not detect home position. X-Y feed or
E.A1
connection of home position sensor is
incorrect.
E.c0
Motor PROM is not correctly inserted.
E.c1
Cooling fan in control box does not operate.
E.c2
Heat-sink on main PCB is overheating.
E.d0
Air pressure has dropped.
E.E0 Control PROM is not correctly inserted.
E.E1
Main PCB detected communication error.
E.E2
Panel PCB detected communication error.
Incorrect connection
E.E3
operation panel and control box.
Solenoid or
(malfunction of main circuit board) or power
E.F0
supply relay is not operating (malfunction of
power supply circuit board).
Incorrect connection of cable between power
E.F1
supply PCB and main PCB.
E.F2 Overcurrent at power supply PCB.
Cause
of cable between
feed motor short-circuit
KE-430B, 430C series
Remedy
Insert a floppy disk. If floppy disk is already inserted,
turn off the power and check the connections of
cords inside the operation panel.
Change program No.
Use original floppy disk.
Replace the floppy disk and repeat the operation.
Release write-protection.
Use another floppy disk.
Change floppy disk.
Replace the floppy disk and repeat the operation.
Turn off power and then clear all of the memory
setting.
Turn off power and then clear all of the memory
setting.
Turn off power and then on again.
Turn off power and check it.
Thread upper thread again. You can start sewing
again.
Thread upper thread again. You can start sewing
again.
Turn off power and check voltage. After turning off
the power, wait 30 seconds or more before turning it
on again.
Turn off power and check voltage.
Read sewing data again.
Turn off power and, check X-Y feed and connector
P1.
Turn off power and check it.
Turn off power and check whether any thread
scraps have built up. Check fan connector.
Turn off power and clean air inlet port.
Turn off power and check it. If drops in air pressure
are not being detected, clear all memory settings to
set the memo-1d switch to OFF.
Turn off power and check it.
Turn off power and then on again.
Turn off power and then on again.
Turn off power and check it.
Turn off power and check it.
Turn off power and check connector P20.
Turn off power and check it.
8. ELECTRIC MECHANISM
170