Brother S-7300A Service Manual page 195

P.C. board-related errors
Code
E700
Abnormal rise in power supply voltage was
detected when power was turned on.
E701
Abnormal rise in sewing machine motor power
supply voltage was detected.
E705
Abnormal drop in power supply voltage was
detected.
E709
Power supply signal could not be detected when
power was turned on.
E710
Abnormal sewing machine motor current was
detected.
E711
Abnormal electrical current for feed motor is
detected.
E791
Abnormal solenoid mechanism current detected
when solenoid was activated.
Version updating errors
Code
E880
Version update request could not be received when
power was turned on.
E881
Communication error was detected during main
version update.
E882
No USB medial connected when power was turned
on.
E883
Version update file could not be detected in USB
media when power was turned on.
E884
Problem with version update file detected during
version updating.
E885
Version update file could not be read from USB
media during version updating.
E886
Problem with version update file detected during
version updating.
E887
Version update file could not be written during
version updating.
E888
Error sending or receiving version update file.
E889
Incorrect data written to flash memory.
E890
Error occurred during version update.
If an error code that is not listed above appears or if carrying out the specified remedy does not solve the problem,
contact the place of purchase.
Cause
Cause
S-7300A
Remedy
Turn off the power and check the power supply
voltage.
・Turn off the power and check the power supply
voltage.
・Turn off the power and check the connection of
connector P13.
Turn off the power and check the power supply
voltage.
Turn the power off and then back on again.
Turn off the power and check the connection of
connector P5.
Turn off the power and check the connection of
connector P4.
Turn off the power and check the connection of
connector P1.
Remedy
Turn off the power and check the connection of
connector P2.
Turn off the power and check the connection of
connector P2.
Turn off the power and check the connection of the
USB media.
Turn off the power and then check that the version
update file is contained in the USB media.
Turn off the power, and then repeat the version
update procedure.
Turn off the power and check the connection of the
USB media.
Turn off the power, and then repeat the version
update procedure.
Turn off the power, and then repeat the version
update procedure.
Turn off the power, and then repeat the version
update procedure.
Turn off the power, and then repeat the version
update procedure.
Turn off the power, and then repeat the version
update procedure.
11. TROUBLESHOOTING
184