– 10 –
CN15
Main motor encoder
(9) Connecting the cords
Electric bobbin winding device (optional)
Sewing machine head
Operation panel
1) Loosen four setscrews
❷
of control box cov-
er
❶
. Remove control box cover
❶
.
2) Connect the cord to the connector on the
MAIN PCB as illustrated in the figure below.
3) Fix the earth cord with setscrew
❸
.
4) Install control box cover
❶
.
5) Fix control box cover with the washers,
spring washers and nuts
❹
.
MAIN circuit board
CN49
MAIN-INT A
CN34
Panel
CN40
MAIN-INT C
CN39
Pedal
CN17
Main motor cord
CN32
MAIN-INT B
CN44
CN34
CN39
CN49
CN40
CN32
CN17
CN15
Earth cord
❸
Earth cord
❶
❷
❹