Connecting The Cords - JUKI LK-1900BN Series Instruction Manual

2-4. Connecting the cords

DANGER :
To prevent personal injuries caused by electric shock hazards or abrupt start of the sewing
machine, carry out the work after turning OFF the power switch and a lapse of 5 minutes or more.
To prevent accidents caused by unaccustomed work or electric shock, request the electric expert
or engineer of our dealers when adjusting the electrical components.
For the sewing machine with the bird's nest preventing, shorter-thread remaining type thread trimmer, connect
the cords listed below to the MAIN PCB.
❶
❻
❹
CN53 Yellow
CN54 Red
❷ ❸
VL1 VL3
CN146
❹
CN52 Black
－
* Suction solenoid valve ❶
* Suction solenoid valve ❷ for shorter-thread
remaining type thread trimmer
* Solenoid valve ❸ for shorter-thread remaining type
thread trimmer
* Cylinder sensor ❹ for shorter-thread remaining type
thread trimmer
* Suction cylinder sensor ❺ for shorter-thread
remaining type thread trimmer
* Regulator pressure sensor ❻
Black
Black
Yellow
Yellow
Red
❺
CN46 Black CN51 Yellow
－
99
4P CN46
CN52
2P
MAIN PCB
CN51
4P
3P CN53
4P CN54
❺