MC200E Electronic Troubleshooting
Problem Cause
Remedy
Reference
Sewing light and LCD screen do not turn on.
Power supply circuit is faulty.
1. Replace the switching power supply.
2. Replace the A-board.
Page 28
Page 16
Sewing light turns on but the LCD screen does
not turn on.
LCD module is faulty.
A-board is faulty.
1. Replace the LCD module.
2. Replace the A-board.
Page 17
Page 16
Touch panel does not respond.
LCD module is faulty.
1. Replace the LCD module.
Page 17
LCD screen indicates the factory adjustment
display, but the touch panel does not respond.
Start/Stop button is faulty.
A-board is faulty.
1. Replace the F-board.
2. Replace the A-board.
Page 18
Page 16
Machine does not run.
DC motor is faulty.
A-board is faulty.
1. Replace the DC motor.
2. Replace the A-board.
Page 20
Page 16
Message “
Rethread and start.
” will not
disappear after rethreading.
Upper thread sensor is faulty.
1. Replace the thread tension unit.
Page 13
Warning message
“Is something stuck in the
machine?
” etc appears repeatedly.
Upper shaft sensor is faulty.
Inappropriate X or Y sensor position.
1. Replace the upper shaft sensor.
2. Adjust the X or Y sensor position.
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Pages 22-24
Carriage does not move to the home position
after turning on the power.
Inappropriate X or Y sensor position. 1. Adjust the X or Y sensor position.
Pages 22-24
Summary of Contents for MC230E
Page 1: ...MC230E...
