21
MO200
5200QDC
CORRECT RESULTS
• The display shows "Self check start".
LCD and led blinks.
• Beeps when enter the LCD & LED
check mode.
Press
CLR
button to proceed to the next
step.
The display shows "Key" and the
machine beeps.
• Beeps when enter the key check mode.
• Beeps when buttons or keys are
pressed.
• The display shows the name of pressed
button or key.
Press
CLR
button to proceed to the next
step.
The display shows "Switch" and the
machine beeps.
• When bobbin winder is move to the
right, the display shows [SP:ON].
• When bobbin winder is move to the left,
the display shows [SP:OFF].
• When presser foot lifter is raised the
display shows [FL:UP].
• When presser foot lifter is lowered the
display shows [FL:DOWN].
• When needle thread tension dial is set
at "A" (auto), the display shows
[TD:ON].
• When needle thread tension dial is rest
of set at "A" (auto), the display shows
[TD:OFF].
Press
CLR
button to proceed to the next
step.
SELF DIAGNOSTIC TESTS
TESTS
Turn the power switch on while
pressing the reverse button &
auto-lock button. Then press the
01 button within 3 seconds to
enter the self-diagnostic mode.
Press the keys in order as
described below.
1 Reverse stitch button
2 Auto-lock button
3 Up/down needle position button
4 Mode key
5 Stitch width key "+"
6 Stitch width key "–"
7 Stitch length key "+"
8 Stitch length key "–"
Press the rest of keys in order from
left to right, starting from the
highest column to the lowest
column.
Move the bobbin winder to the
right.
Move the bobbin winder to the left.
Raise the presser foot lifter.
Lower the presser foot lifter.
Turn the needle thread tension
dial.
1)
LCD & LED
2)
KEYS
3)
BOBBIN
WINDER
SPINDLE
PRESSER FOOT
LIFTER
NEEDLE
THREAD
TENSION DIAL
DEFECTIVE RESULTS /
REPLACEMENT AND
ADJUSTMENT
DEFECTIVE RESULTS:
• Does not enter the self-
diagnostic mode.
REPLACE:
• Replace the touch panel.
• Replace the board A.
DEFECTIVE RESULTS:
• Does not display the name of button
or does not beep when buttons are
pressed.
REPLACE:
• Replace the touch panel.
• Replace the board A, board F and
board K.
DEFECTIVE RESULTS
:
• The value does not change.
• The value does not match with the
correct results.
REPLACE:
• Adjust the sensing switch.
• Replace the sensing switch.
• Replace the board A.
