Self Diagnostic Tests - Janome MO200 Service Manual

PREPARATION:
• Turn off the power switch.
• Shift the bobbin winder spindle to the left.
• Raise the feed dog.
• Shift the speed control lever to the left.
• Remove the presser foot and raise the presser foot lifter.
• Turn the handwheel toward you to raise the needle to its highest position.
• Plug the foot control to the machine.
NOTE:
• Be careful: The sewing machine may start running by its own while in test mode.
• Turn off the power switch before replacing any parts.
• Repeat the diagnostic test until the problems has been resolved.
Turn on the power switch. If any of following problems occur, take the recommended actions in the order
they are shown.
• THE MACHINE DOES NOT RESPOND WHEN THE POWER SWITCH IS TURNED ON.
1. Check each connector connection.
2. Replace the machine socket.
3. Replace the printed circuit board "A".
4. Replace the power supply cord.
5. Replace the power transformer.
• THE SEWING MACHINE LIGHT DOES NOT LIGHT UP.
1. Replace the lamp.
2. Replace the circuit board "A".
• THE LCD SCREEN DOES NOT DISPLAY.
1. Replace the printed circuit board "A".
1. Turn the power switch on
while pressing the reverse
button & auto-lock button.

SELF DIAGNOSTIC TESTS

2. Press the 1 button.
(The standard mode shows
up if you do not press the 1
button within 3 seconds.)
SPECIAL MODE LIST DISPLAY
20
MO200
5200QDC