LK3-B438E Mark II
12
w
q
!1
!0
r
P11
P7
P6
P5
P4
e
P3
P2
P1
P8
!3
!2
q
o
u
i
y
t
3-13 . Connecting the cords
1. Gently tilt back the machine head.
NOTE:
After tilting back the machine head, do not push the face side or the pulley side from above.
2. Pass the cords
q
through the hole
w
in the work table.
3. Gently return the machine head to its original position.
4. Remove the six screws
e
, and then open the control box cover (main P.C. board mounting plate
r
).
NOTE:
When opening the cover, hold it securely so that it does not fall down.
5. Loosen the two screws
t
,and then open the cord presser plate
y
in the direction of the white arrow and
pass the cords
q
through the opening.
6. Loosen the screw
o
, and then attach the ground cord
u
for the machine head and the ground cord
i
for
the operation panel as shown in the illustration.
7. Loosen the screw
!1
, and then attach the ground cord
!0
for the upper shaft motor as shown in the illustra-
tion.
8. Securely connect connectors P1 to P8 and P11 as indicated in the table.
9. Secure the cords
q
with the cord clamps
!2
and
!3
.
10. Close the cord presser plate
y
in the direction of the black arrow, and secure it by tightening the screws
t
.
NOTE:
Check that the cords do not get pulled when the machine head is tilted back gently.
11. Tighten the cover (main P.C. board mounting plate
r
) with the six screws
e
.
3. INSTALLATION
Connection location
X, Y, Sewing sensor
Synchronizer
Machine specification
select connector
Thread take-up solenoid
Presser solenoid
Thread trimmer solenoid
Pulse motor, Y
Pulse motor, X
Operation panel
Upper shaft motor
No. of pins
12-pin
5-pin
8-pin
5-pin
4-pin
4-pin (blue)
4-pin
26-pin
3-pin
Cord mark
z
x
c
v
b
n
m
None
None
Connection location on circuit board
P1 (ORG2)
P2 (SYNCHRO)
P3 (SELECT)
P4 (SOL2)
P5 (SOL)
P6 (YPM)
P7 (XPM)
P8 (PANEL)
P11 (UVW)
Machine head connectors