31
PRINTED CIRCUIT BOARD A CONNECTION
NOTE:
Do not disconnect the connectors by pulling on cord.
To disconnect, grasp the connector, not the cord.
REPLACING THE ELECTRONIC COMPONENTS
Printed circuit board A
Printed circuit board F
Printed circuit board L
q
Printed circuit board F (white)
w
Printed circuit board L (white)
e
Program (black)
r
Bobbin winding switch (blue)
t
Thread cutter motor (white)
y
Touch panel (white)
u
Feed motor (white)
i
Printed circuit board P (black)
o
Controller (black)
!0
Power switch (
white
)
!1
DC Motor (white)
!2
Stitch width motor (green)
!3
Solenoid (thread tension release control) (black)
!4
Micro switch (presser foot lifter sensor) (green)
!5
Printed circuit board E1 (BH sensor) (red)
q
w
e
t
y
u
i
o
!0
!1
!2
!3
r
!4
!5
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