Introduction
Thank you for choosing the Heemol USB Cable Tester. This device is designed to efficiently test the connection status and functionality of various USB cables, including USB-B 3.0, USB-B 2.0, USB-C 3.0/3.1/3.2, Micro-B 3.0, Micro-B 2.0, Mini-B 2.0, and Lightning cables. Its compact design ensures portability and ease of storage. This manual provides detailed instructions for setup, operation, and troubleshooting to help you get the most out of your cable tester.
Safety Information
- Read all instructions carefully before using the device.
- Keep the device away from water and other liquids.
- Do not attempt to disassemble or modify the device. This will void the warranty.
- Use only the specified power sources (CR2032 battery or DC3-12V external power).
- This device is for testing cables only. It does not test cable resistance.
- Store the device in a cool, dry place when not in use.
Product Overview
The Heemol USB Cable Tester features multiple ports for various USB cable types and 24 LED indicators to display the connection status of each pin. It supports two power modes for flexible use.
Key Features:
- Universal Compatibility: Tests USB-B 3.0, USB-B 2.0, USB-C 3.0/3.1/3.2, Micro-B 3.0, Micro-B 2.0, Mini-B 2.0, and Lightning cables.
- LED Indicators: 24 LEDs provide clear, pin-by-pin status of cable connections.
- Dual Power Modes: Operates with a CR2032 button cell battery or external DC3-12V power supply.
- Intuitive Design: Simple plug-and-play operation for quick cable diagnostics.
- Compact and Portable: Easy to carry and store for on-the-go testing.
Components:
The device includes dedicated ports for different USB types, clearly labeled for ease of use. The central area features two rows of LED indicators, labeled "PINROW A" and "PINROW B", corresponding to the pins of the connected cables.
Setup
1. Assembling the Tester (if applicable)
If your tester arrived unassembled, follow these steps to attach the transparent casing:
- Gather the provided screws and standoffs.
- Carefully peel off the protective film from both sides of the transparent acrylic cover.
- Align the cover with the circuit board and secure it using the screws and standoffs.
2. Powering the Device
The Heemol USB Cable Tester supports two power options:
- CR2032 Button Cell Battery: Insert a CR2032 battery into the designated battery holder on the board. Ensure the positive (+) side faces upwards.
- External Power (DC3-12V): Connect a DC3-12V power source to the "Vin" port (typically a USB-C port) on the tester. This option provides protection against incorrect directional connections.
Important Note: If using the CR2032 battery, ensure the metal plate is correctly positioned on top of the battery, otherwise the product may not power on.
Operating Instructions
The Heemol USB Cable Tester is designed for straightforward operation. Follow these steps to test your USB cables:
- Power On: Ensure the device is powered on using either the CR2032 battery or an external DC3-12V power supply.
- Connect Cable: Plug one end of the USB cable into the appropriate port on "USB Port A" (left side) and the other end into the corresponding port on "USB Port B" (right side). For example, if testing a USB-C to USB-C cable, plug one end into the USB-C 3.0 port on Port A and the other into the USB-C 3.0 port on Port B.
- Observe LEDs: The 24 LED indicators will illuminate to show the connection status of each pin. A lit LED indicates a successful connection for that specific pin.
- Interpret Results: Refer to the LED indication patterns below to understand the cable's functionality.
LED Indication Patterns:
- Pattern 1: If the GND and VBUS LEDs light up, this indicates that the USB cable only supports charging functionality.
- Pattern 2: If the GND, VBUS, D+, and D- LEDs light up, this indicates that the USB cable supports both charging and data transfer functions.
- Pattern 3: If all LEDs light up (except D+ and D- for certain cable types), this indicates that the USB cable supports all functions, including charging, data transfer, audio, and video transmission.
- Pattern 4: Specific schema for Lightning data cable detection. (Refer to the diagram for details on which pins are expected to light up for Lightning cables).
- Pattern 5: If the GND, TX2+, TX2-, VBUS, CC2, D+, and D- LEDs light up, this indicates that the USB cable supports both charging and high-speed data transfer functions. This is typical for USB 3.0, 3.1, or 3.2 cables.
Note: The tester cannot measure cable resistance. It only verifies continuity and pin connections.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. |
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| No LEDs light up when cable is connected. |
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| Only some LEDs light up (e.g., only charging). |
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| Inconsistent LED readings. |
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Specifications
| Feature | Detail |
|---|---|
| Brand | Heemol |
| Model Number | Micro / Type A / Type B / Type C |
| Supported Cable Types | USB-B 3.0, USB-B 2.0, USB-C 3.0/3.1/3.2, Micro-B 3.0, Micro-B 2.0, Mini-B 2.0, Lightning |
| LED Indicators | 24 LEDs (one for each pin) |
| Power Source | CR2032 button cell battery or External DC3-12V (Vin) |
| Minimum Operating Voltage | 3 Volts (DC) |
| Product Dimensions | 11 x 2.5 x 0.77 cm (approx. 4.33 x 0.98 x 0.30 inches) |
| Product Weight | 0.07 grams (approx. 0.002 ounces) |
Maintenance
- Cleaning: Use a soft, dry cloth to clean the device. Do not use abrasive cleaners or solvents.
- Storage: Store the cable tester in a clean, dry environment, away from direct sunlight and extreme temperatures.
- Battery Replacement: If using the CR2032 battery, replace it when the LEDs become dim or the device fails to power on. Ensure proper disposal of old batteries according to local regulations.
Warranty and Support
Heemol products are designed for reliability and performance. For warranty information or technical support, please refer to the contact details provided with your purchase or visit the official Heemol website. Please have your product model number (Micro / Type A / Type B / Type C) and purchase date ready when contacting support.
Manufacturer: Heemol