Table of Contents
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Table of Contents
Related Manuals for Janome DC3100
Summarization of Contents
Changing External Parts
Face Cover
Instructions for removing and attaching the face cover of the sewing machine.
Free-Arm Cover
Procedure for removing and attaching the free-arm cover on the sewing machine.
Front Cover
Steps to remove and reattach the front cover, including disconnecting connectors.
Rear Cover
Guide for removing and reattaching the rear cover of the sewing machine.
Mechanical Adjustment
Presser Bar Height
Adjusting the presser bar height to ensure correct distance from the needle plate.
Needle Drop Position
Setting the correct needle drop position and clearance within the needle plate hole.
Adjustment of Hook Timing
Procedure to align the rotary hook with the needle for proper stitch formation.
Adjustment of Needle Bar Height
Adjusting the needle bar height based on hook timing and needle eye position.
Clearance Between Needle and Tip of the Rotary Hook
Fine-tuning the clearance between the needle and the rotary hook tip.
Feed Dog Height
Adjusting the highest position of the feed dog relative to the needle plate.
Top Tension
Setting the correct top thread tension using the tension dial and lead screw.
Stretch Stitch Feed Balance
Checking and adjusting the feed balance for stretch stitches.
Replacement and Adjustment of the Needle Threader Plate
Procedures for replacing and adjusting the needle threader plate position.
Adjusting Buttonhole Lever Position
Adjusting the buttonhole lever guide and sensor for correct buttonhole operation.
Self-Diagnostic Test
Button Test
Tests the machine's buttons and LCD display for proper function.
Buttonhole Sensor Test
Verifies the operation of the buttonhole sensor.
Bobbin Winder Switch Test
Checks the functionality of the bobbin winder switch.
Presser Foot Lifter Switch Test
Tests the presser foot lifter switch for correct operation.
Upper Shaft Positioning Sensor Test
Verifies the upper shaft positioning sensor.
Zigzag Motor and Feed Motor Test
Tests the zigzag and feed motors for proper initialization and movement.
Foot Control Test
Checks the attachment and operation of the foot control pedal.
Slide Volume Test
Tests the slide volume control for correct response.
DC Motor Test
Diagnoses issues with the machine's DC motor operation.
Thread Solenoid Tests
Tests thread tension release and thread cutter solenoids.
EEPROM Test
Checks the integrity and condition of the EEPROM.
Program Version Display
Instructions on how to display the machine's software version.
Replacing the Electronic Components
Printed Circuit Board A Connection
Diagram showing connections for Printed Circuit Board A and component identification.
Printed Circuit Board A Replacement
Steps for removing and attaching Printed Circuit Board A.
Printed Circuit Board F2 Replacement
Procedure for removing and attaching Printed Circuit Board F2.
Printed Circuit Board F1 Replacement
Steps for removing and attaching Printed Circuit Board F1.
Printed Circuit Board L Replacement
Procedure for removing and attaching Printed Circuit Board L.
Driving Motor (DC Motor) Replacement
Instructions for removing, installing, and adjusting the DC motor and belt.
Switching Regulator Unit Replacement
Steps for removing and attaching the switching regulator unit.
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