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