1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Mcezdy M7C-2-5-Pin Ebike LCD Display. This display is designed to enhance your electric bike experience by providing essential riding data and control functions. Please read this manual thoroughly before using the product to ensure correct operation and to prevent damage.
2. Safety Information
- Always ensure your ebike controller is compatible with the UART No. 2 protocol and the 5-pin connector of this display. Incompatibility can lead to malfunction.
- Do not attempt to disassemble or modify the display. This may void the warranty and cause damage.
- Ensure all connections are secure and waterproof before riding, especially in wet conditions. The display has an IPX65 waterproof rating, but proper connection is crucial.
- Regularly check the display and its mounting for any signs of damage or looseness.
- Avoid exposing the display to extreme temperatures or direct sunlight for prolonged periods.
- Always prioritize road safety. Do not operate display functions that distract you from riding.

Figure 1: Compatibility Reminder. This image highlights the critical need to verify your ebike's compatibility with the UART No. 2 protocol before installation.
3. Package Contents
Upon opening the package, please verify that all the following items are included:
- Mcezdy M7C-2-5-Pin Ebike LCD Display
- User's Manual (this document)
- Fault Code Description sheet
4. Product Features
The Mcezdy M7C-2-5-Pin Ebike LCD Display offers a range of features designed for an optimized riding experience:
- Advanced Color LCD Display: Provides clear, vibrant visuals of riding data.
- Robust Construction: Crafted with ABS+PC housing, tempered glass screen, and a durable nylon bracket for longevity and scratch resistance.
- IPX65 Waterproof Rating: Offers protection against water splashes and rain.
- UART No. 2 Protocol: Ensures seamless communication with compatible ebike controllers.
- Wide Voltage Compatibility: Supports 24V, 36V, 48V, and 60V ebike battery systems.
- Integrated USB Charging Port: Features a 5V/500mA USB port for charging mobile devices.
- Universal Handlebar Fit: Compatible with handlebar diameters of 22.2mm, 25.4mm, and 31.8mm.
- Comprehensive Data Display: Shows speed, PAS level, battery status, odometer (ODO), trip distance (TRIP), voltage (VOL), current (CUR), and error codes.
- Customizable Parameters: Allows modification of wheel diameter and speed limit settings.
- Additional Modes: Includes walk-assist mode and cruise control.

Figure 2: Display Features. This image illustrates the advanced color LCD, the control keypad, and the various cable connector types available for the display.
5. Setup and Installation
5.1 Compatibility Check
Before installation, confirm that your ebike controller uses the UART No. 2 protocol and has a compatible 5-pin connector. This display is specifically designed for this protocol and connector type. Refer to your ebike's controller manual for verification.
5.2 Mounting the Display
- Choose a suitable position on your ebike's handlebar. The display's flexible bracket is compatible with handlebar diameters of 22.2mm, 25.4mm, and 31.8mm.
- Loosen the screws on the display bracket.
- Position the display on the handlebar and tighten the screws securely. Ensure the display is stable and does not rotate freely.

Figure 3: Handlebar Mounting. This image demonstrates the display mounted on a handlebar, highlighting its adjustable bracket for different handlebar diameters.
5.3 Connecting the Cables
- Locate the 5-pin waterproof cable (JL-F-Z509AG) extending from the display. The exposed cable length is approximately 150mm.
- Connect this cable to the corresponding 5-pin connector on your ebike's controller. Ensure the connectors are aligned correctly before pushing them together.
- Secure the connection firmly. If it is a waterproof connector, ensure the seal is properly engaged.
- Route the cable neatly along the ebike frame, securing it with cable ties if necessary, to prevent it from interfering with moving parts or getting damaged.

Figure 4: Cable Selection. This image displays different cable types, emphasizing the importance of selecting the correct 5-pin connector for this specific display model.
6. Operating Instructions
6.1 Powering On/Off
To power on the display, press and hold the power button on the keypad. To power off, press and hold the power button again.
6.2 Display Interface Overview

Figure 5: Display Metrics. This image labels the various metrics shown on the display, including speed, PAS level, battery indicator, headlight indicator, error code, odometer, trip distance, voltage, and current.
The display provides real-time information about your ride:
- Speed: Current riding speed (km/h or mph).
- PAS (Pedal Assist System): Current pedal assist level.
- Battery: Remaining battery charge level.
- Headlight Indicator: Shows if the ebike's headlight is active.
- Error Code: Displays numerical codes for system faults. Refer to the included "Fault Code Description" sheet for details.
- Multifunctional Display Area: Cycles through Odometer (ODO), Trip Distance (TRIP), Battery Voltage (VOL), and Motor Current (CUR).
6.3 Navigating Settings
Use the keypad buttons (typically +, -, and power/mode) to navigate through display modes and adjust settings. Specific button functions may vary; refer to the detailed instructions in the included User's Manual for precise navigation.
6.4 Parameter Modification
The display allows you to modify key parameters to optimize your ebike's performance:
- Wheel Diameter: Adjust this setting to match your ebike's wheel size for accurate speed and distance readings.
- Speed Limit: Set the maximum assisted speed according to local regulations or personal preference.
Accessing and modifying these parameters typically involves entering a settings menu by holding specific buttons. Consult the included User's Manual for the exact procedure.
6.5 Special Modes
- Walk-Assist Mode: Provides low-speed assistance for pushing the ebike when walking.
- Cruise Control: Maintains a set speed without continuous throttle or pedal input.
Activation of these modes is usually done via specific button combinations. Refer to the comprehensive User's Manual for detailed instructions.
6.6 USB Charging Port
The display includes a 5V/500mA USB port on its side, allowing you to charge mobile devices while riding. Ensure the port cover is securely closed when not in use to maintain its waterproof integrity.
7. Maintenance
- Cleaning: Wipe the display screen and body with a soft, damp cloth. Do not use abrasive cleaners or solvents, as these can damage the screen or housing.
- Water Protection: While the display is IPX65 waterproof, avoid submerging it in water. Ensure the USB port cover is always closed when not in use to prevent water ingress.
- Storage: When not in use for extended periods, store the ebike and display in a dry, cool place away from direct sunlight.
- Connection Check: Periodically inspect the cable connections for any signs of wear, corrosion, or looseness.
8. Troubleshooting
If you encounter issues with your Mcezdy Ebike LCD Display, consider the following common troubleshooting steps:
- Display Not Powering On:
- Check if the ebike battery is charged and properly connected.
- Ensure all display cables are securely connected to the controller.
- Verify that the display's power button is being pressed and held correctly.
- Incorrect Speed/Distance Readings:
- Check the wheel diameter setting in the display's parameters. Adjust it to match your ebike's actual wheel size.
- Ensure the speed sensor on your ebike is clean and properly aligned.
- Error Codes Displayed:
If an error code appears on the display, refer to the dedicated "Fault Code Description" sheet included with your product. This sheet provides specific meanings for each code and recommended actions.
- USB Charging Not Working:
- Ensure the ebike is powered on.
- Check the USB cable and the device being charged for proper connection.
If these steps do not resolve the issue, contact customer support for further assistance.
9. Specifications
| Model Number | M7C-2-5-Pin |
| Brand | Mcezdy |
| Display Type | LCD (Color) |
| Connectivity Technology | UART NO.2 (Wired, 5-Pin Connector) |
| Work Voltage | DC 24V, 36V, 48V, 60V |
| International Protection Rating | IPX65 |
| Mounting Type | Handlebar Mount (22.2mm, 25.4mm, 31.8mm) |
| USB Charging Port | 5V/500mA |
| Cable Length Exposed | 150mm (Waterproof Cable) |
| Material | ABS+PC Housing, Tempered Glass Screen, Nylon Bracket |
| Item Weight | 249 g |

Figure 6: Product Dimensions and Electrical Specifications. This image provides key physical dimensions, cable length, compatible product models, and operating voltage range for the display.
10. Warranty and Support
For warranty information and customer support, please refer to the specific warranty card or documentation included with your purchase. You may also contact the retailer or manufacturer directly for assistance with product inquiries, technical support, or warranty claims.
Please retain your proof of purchase for any warranty-related services.





