JUKI IT-100D Engineer's Manual

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(2) Replacing procedure of the printed circuit board
1) In case of SC-915
1. FLT printed circuit board
1) Draw out connector cords of CN1, CN2 and CN3 on FLT circuit board.
2) Remove green/yellow cord attached to FLT circuit board from the screw of earth mecca at the bottom of
the box.
3) Remove 6 screws on the side of the pedal sensor side from the outside.
4) Assemble by reversing the above removing order.
2. PWR printed circuit board
(Caution) It is not necessary to remove FLT printed circuit board in case of the simple substance of
the box.
Remove connectors and FG wire, and replace PWR printed circuit board after removing
the front cover.
1) Remove FLT printed circuit board by the aforementioned removing procedure of FLT printed circuit
board.
2) Remove two green/yellow cords attached to PWR printed circuit board from the screw of earth mecca at
the bottom of the box.
3) Draw out connector cords of CN11, CN25, CN23, CN13, CN22, CN21 and CN38 on PWR printed circuit
board.
4) Draw out connector cord of CN44 on CTL printed circuit board.
5) Remove 9 screws on PWR printed circuit board from the inside of the box.
6) Assemble by reversing the above removing order.
3. CTL printed circuit board
1) Draw out all inserted connector cords on CTL printed circuit board.
2) Take the draw hook and remove the board together with the rear cover from the main unit of the box.
3) Remove 7 screws on CTL printed circuit board.
4) Assemble by reversing the above removing order.
2) In case of SC-916
1. FLT printed circuit board
1) Draw out connector cords of CN1, CN2 and CN3 on FLT circuit board.
2) Remove 6 screws on the side of the pedal sensor side from the outside.
3) Assemble by reversing the above removing order.
2. PWR printed circuit board
(Caution) It is not necessary to remove FLT printed circuit board in case of the simple substance of
the box.
Remove connectors and FG wire, and replace PWR printed circuit board after removing
the front cover.
(Procedure 1) Replacement from the rear cover side
1) Remove FLT printed circuit board by the aforementioned removing procedure of FLT printed circuit
board.
2) Remove two green/yellow cords attached to PWR printed circuit board from the screw of earth mecca at
the bottom of the box.
3) Draw out connector cords of CN11, CN25, CN23, CN13, CN22, CN21, CN12, CN24, CN29 and CN38
on PWR printed circuit board.
4) Draw out connector cord of CN44 on CTL printed circuit board.
5) Remove 9 screws on PWR printed circuit board from the inside of the box.
6) Assemble by reversing the above removing order.

JUKI IT-100D Specifications

General

Brand	JUKI
Model	IT-100D
Category	Sewing Machine
Language	English