Janome Memory Craft 6600 Service Manual

The Janome Memory Craft 6600 is a high-performance computerized sewing machine featuring advanced stitching capabilities, automatic thread tension, built-in stitches, memory functions, and precision engineering. This service manual provides comprehensive technical information for qualified technicians including disassembly procedures, troubleshooting guides, maintenance schedules, and calibration instructions. Below are key sections covering technical specifications, maintenance procedures, troubleshooting, and repair guidelines.

Technical Specifications

Key technical parameters and performance characteristics of the Memory Craft 6600 sewing machine.

Safety Precautions

Essential safety guidelines for service technicians working on the Memory Craft 6600.

1. Always disconnect power before performing any service or maintenance.
2. Use proper tools and follow electrostatic discharge (ESD) precautions.
3. Wear safety glasses when working with mechanical components.
4. Keep work area clean and well-lit to prevent accidents.

WARNING! High voltage components present risk of electric shock. Only qualified technicians should perform internal repairs.

Maintenance Procedures

Routine maintenance schedule and procedures to ensure optimal performance.

1. Daily cleaning: Remove lint and dust from bobbin area and feed dogs.
2. Weekly lubrication: Apply sewing machine oil to designated points.
3. Monthly inspection: Check needle bar, hook, and timing alignment.
4. Annual service: Complete internal cleaning and calibration by authorized technician.

CAUTION! Use only Janome-approved lubricants and cleaning supplies.

Disassembly Instructions

• Housing Removal: Remove 8 screws from bottom plate and carefully separate housing.
• Motor Access: Disconnect power connector and remove 4 mounting bolts.
• Circuit Board: Document wire positions before disconnecting ribbon cables.
• Mechanism Access: Remove front panel to access stitch selection mechanism.
• Display Unit: Carefully disconnect LCD ribbon cable before removal.
• Control Panel: Remove button membrane and circuit board assembly.
• Bobbin Case: Standard removal with release lever mechanism.
• Feed Dog System: Access through bottom plate after housing removal.

Electrical System

Detailed electrical schematics and component specifications for the Memory Craft 6600.

Main Components: Power supply board, main control board, motor controller, LCD display, stitch selection motors, foot pedal interface.

Voltage Testing Points: +5V DC (logic), +12V DC (motor control), +24V DC (display backlight). Circuit Protection: Main fuse 2A 250V, thermal protection on motor. Connector Types: Ribbon cables for display and controls, modular connectors for motors and sensors.

Mechanical Components

Mechanical assembly details and adjustment procedures for critical components.

1. Turn off power and unplug machine before mechanical adjustments.
2. Refer to timing marks on main shaft and needle bar for proper alignment.
3. Use calibrated tools for tension spring adjustments.
4. Verify feed dog height and timing after any mechanism service.

Tip: Document original settings before making adjustments for easy restoration if needed.

Troubleshooting Guide

Common issues and diagnostic procedures for the Memory Craft 6600 sewing machine.

1. No power: Check power cord, wall outlet, and main fuse.
2. Motor not running: Test foot pedal switch and motor controller board.
3. Stitch quality issues: Verify needle installation, thread tension, and timing.
4. Display problems: Check ribbon cable connections and backlight inverter.
5. Error codes: Refer to error code chart in service documentation.
6. Buttonhole malfunctions: Calibrate buttonhole sensor and mechanism.
7. Thread breakage: Inspect tension disks, needle plate, and bobbin case.
8. Feed dog issues: Check feed dog mechanism and timing gear alignment.

WARNING! Always disconnect power before performing electrical testing.

Calibration Procedures

Step-by-step calibration instructions for critical machine functions.

Parts Replacement

Authorized replacement parts and installation procedures.

Use only genuine Janome parts for replacements. Common replacement parts: needles, bobbins, presser feet, belts, motors, circuit boards, displays, sensors. Order parts using official Janome part numbers. Installation requires proper tools and following torque specifications.

Warranty Information

Janome Memory Craft 6600 warranty coverage and service limitations.

25-year limited warranty on mechanical components. 5-year limited warranty on electronic components. 1-year limited warranty on labor. Warranty void if machine serviced by unauthorized personnel or if non-genuine parts are used. For warranty claims, contact authorized Janome service centers with proof of purchase.

Service Contacts

Online Resources: Service manuals, technical bulletins, and training materials available at www.janome.com/service

Authorized Centers: Locate nearest authorized service center through dealer network.