Product Description
Maqi Q3 Pedal PCB for Smooth Speed Control
The Maqi Q3 Pedal PCB is a replacement foot-pedal speed controller board designed for compatible Maqi direct-drive single-needle lockstitch sewing machines. This 5V_PEDAL_V1.1 PCB works with the pedal sensor circuit to translate foot-pedal movement into a speed-control signal for the machine motor.
It is suitable when the existing pedal PCB is faulty, damaged, or no longer provides consistent speed response. The board includes a Hall-effect sensor, calibration trimmer, labeled terminals, and filtering components for stable signal operation.
The competitor page lists the product simply as “MAQI Q3 Pedal PCB,” with SKU RK07661 and a single product price, but provides very limited technical or compatibility information.
Key Features
- 5V_PEDAL_V1.1 board revision for identification
- Hall-effect sensor (IO1) for detecting pedal movement
- Smooth, step-less speed-control signal
- Multi-turn trimmer potentiometer for sensitivity/calibration adjustment
- Clearly marked +6V, GND and OUT connection points
- Electrolytic filtering capacitor and SMD components for signal stabilization
- Compact PCB design with two mounting holes
- Suitable as an electronics replacement for a compatible sewing-machine foot pedal
Why Replace the Pedal PCB?
A damaged pedal sensor board can cause inconsistent speed response, poor low-speed control, intermittent operation, or a pedal that does not respond correctly.
Replacing the PCB can restore the pedal’s electronic sensing function without necessarily replacing the complete pedal assembly. This makes it a practical spare part for sewing-machine technicians, garment workshops, tailoring units, and maintenance teams.
Important: This is an electronic pedal-control PCB, not a complete foot pedal assembly.
Machine Compatibility
The supplied compatibility information identifies this PCB with the Maqi Q3, Q3-M, Q5 and Q-series direct-drive single-needle lockstitch machines.
It is also specified for compatible pedal controllers using the 5V_PEDAL_V1.1 board revision. Jitsui and Jack compatibility should be treated as conditional rather than universal because pedal PCB layouts, connectors, wiring and control systems can vary between machine models.
| Machine Type / Model | Compatible |
|---|---|
| Maqi Q3 | Yes |
| Maqi Q3-M | Yes |
| Maqi Q5 | Yes |
| Compatible Maqi Q-Series | Yes |
| Jitsui / Jack | Only where the existing pedal uses the same 5V_PEDAL_V1.1 board configuration |
Please verify the PCB revision, connector arrangement and existing board before purchasing.
Best Use Cases
This PCB is intended for industrial sewing-machine pedal electronics, so fabric type is not directly applicable. The pedal controls machine speed rather than fabric feeding or stitching directly.
It can be useful for:
- Tailoring workshops
- Garment production units
- Sewing-machine repair technicians
- Industrial sewing-machine maintenance
- Replacement of defective pedal sensor electronics
- Restoring variable-speed pedal response
How To Install
- Switch off and unplug the sewing machine before servicing the pedal electronics.
- Open the pedal housing according to the machine or pedal assembly design.
- Note the original PCB orientation and wiring before removal.
- Disconnect the existing PCB carefully.
- Install the replacement 5V_PEDAL_V1.1 board in the same position.
- Match the wiring and connector arrangement with the original board.
- Secure the PCB using the existing mounting points.
- Reassemble the pedal housing.
- Power on the machine and test the pedal gradually.
- If calibration is required, have a qualified technician adjust the trimmer potentiometer.
Do not alter the wiring based only on terminal labels. Confirm the original pedal’s circuit arrangement before connecting the replacement board.
Frequently Asked Questions
What is a Maqi Q3 Pedal PCB?
The Maqi Q3 Pedal PCB is the electronic sensor/control board inside a compatible sewing-machine foot pedal. It detects pedal movement and produces a control signal used by the direct-drive machine system to regulate sewing speed.
Is this PCB compatible with the Maqi Q3?
Yes. The supplied product information identifies it for the Maqi Q3 and other specified Maqi Q-series machines. Check the existing PCB revision and connector configuration before ordering to avoid fitting an incompatible board.
What does 5V_PEDAL_V1.1 mean?
5V_PEDAL_V1.1 is the board revision marking used to identify this particular pedal PCB configuration. Matching the revision printed on your existing board is a useful way to confirm whether this replacement is suitable for your pedal assembly.
Can this PCB control sewing-machine speed?
Yes. The pedal PCB senses foot-pedal movement and provides a variable control signal to the sewing-machine control system. This allows the operator to regulate machine speed through pedal pressure rather than simply switching the motor on or off.
Is this a complete Maqi Q3 foot pedal?
No. This listing is for one pedal PCB only. It does not represent a complete foot pedal assembly. Before ordering, compare your existing board, connectors, mounting arrangement and revision marking with the replacement PCB.
Can I use it on a Jack or Jitsui sewing machine?
Only if the existing pedal uses the same compatible 5V_PEDAL_V1.1 configuration. Brand name alone is not enough to confirm compatibility. Check the PCB marking, connector arrangement and wiring before installation.
MACHINE COMPATIBILITY TABLE
| Machine Type | Compatible |
|---|---|
| Maqi Q3 Direct Drive Lockstitch | Yes |
| Maqi Q3-M | Yes |
| Maqi Q5 | Yes |
| Maqi Q-Series | Yes, where specified configuration matches |
| Jitsui | Verify 5V_PEDAL_V1.1 configuration |
| Jack | Verify 5V_PEDAL_V1.1 configuration |
| Single Needle Lock Stitch Machine | Only with matching pedal/control configuration |
| TA1 Umbrella Sewing Machine | No / Not specified |
BEST FABRIC TYPES
Fabric compatibility: N/A
This is an electronic sewing-machine spare part, not a presser foot, needle or fabric-feeding attachment. It does not directly contact the fabric.
The PCB can therefore be used with sewing applications involving fabrics such as cotton, polyester, denim, canvas or other materials when those fabrics are being sewn on the compatible machine. The appropriate fabric capability depends on the sewing machine, needle, thread and presser-foot setup.
HOW TO USE
- Unplug the sewing machine.
- Access the existing foot-pedal PCB.
- Compare the board marking with 5V_PEDAL_V1.1.
- Photograph or note the original wiring.
- Remove the defective PCB.
- Install the replacement in the same orientation.
- Reconnect the wiring correctly.
- Close the pedal housing.
- Switch on the machine.
- Test pedal response from low to higher speed.
- Have a technician calibrate the trimmer if required.
Compatible Products
Maqi Q1 Display Panel PCB with Cable | GG25B_48P
