1. Safety Information
Please read this user manual carefully before using the device. This product has been designed with personal considerations in mind, but incorrect usage may cause electric shock and fire. To avoid damaging the safety parts inside the machine, please observe the following rules during installation, usage, and repair:
General Safety Rules:
- To prevent fire or electric shock, do not put the monitor in humidity or even in worse conditions.
- Before using the device, make sure all cables are connected properly and the power cord is not damaged. If there is any damage, please contact us immediately.
- To avoid dust, moisture, and extreme temperatures, DO NOT place the device in any DAMP area. Place the device on a stable surface when in use.
- DO NOT put any object or splash any liquid into the openings of the device casing.
Important Note:
Always use the original power charger and power cable. If any problems occur, contact our professional After-Sales Service Team. We will provide the best solution within 24 hours.
To Prevent Injuries, Observe the Following Rules:
- Turn off the monitor when you leave for a long time.
- Do not allow children to throw or put objects into the monitor.
- Do not install spare parts that are not specifically designed for this device.
- Unplug the power cord when the device is unattended for a long time.
- Do not touch the power cord or signal cable when lightning strikes, otherwise it may cause electric shock.
- Do not let any object compress or wrap the power cord.
- Do not place the monitor where the power cord can be easily damaged.
Beware of electric shock
Keep dry
Flammable and explosive
2. Product Overview
2.1 Package Contents
The product package includes the following items:
- 1x 15.6-inch 4K Monitor
- 1x 5V 3A Power Adapter (PD 30W)
- 1x USB-A to Type-C Cable
- 1x Type-C to Type-C Cable
- 1x Standard HDMI to Standard HDMI Cable
- 1x Product Manual
- 1x Magnetic Cover
Note: Power adapter plug type (EU, US, AU, UK, JP) will be selected based on your order address.
Different power adapter types available.
2.2 Product Ports and Controls
Familiarize yourself with the monitor's ports and control buttons:
Detailed view of monitor ports and control buttons.
| Label | Function/Port |
|---|---|
| A | Micro USB-OTG function |
| B | LED Indicator |
| C | Power Button |
| D | Menu/Confirm Setting Button |
| E | Up/Audio Control Button |
| F | Down/Brightness Control Button |
| H, I | Full-function Type-C Ports |
| J | Standard HDMI Port |
| K | 3.5mm Audio Output |
| L | Dual Built-in Speakers |
3. Specifications
| Feature | Specification |
|---|---|
| Model | CX156-C |
| Panel Type | IPS Screen |
| Screen Size | 15.6 inch |
| Aspect Ratio | 16:9 |
| Resolution | 3840x2160 (4K UHD) |
| Visual Angle | 178° |
| Contrast Ratio | 1000:1 |
| Brightness | 300 cd/㎡ |
| Color Gamut | 72% NTSC (also 100% sRGB, 85% NTSC mentioned) |
| Built-in Speakers | 8Ω/1W (Dual Speakers) |
| Shell Material | ABS |
| Output Interface | 3.5mm headphone interface |
| Refresh Rate | 60 Hz |
| Working Temperature | -20°C to +60°C |
| Matrix Color Depth | 8 bit |
| Refresh Rate Sync Technology | AMD FreeSync Pro |
| Screen Surface | MATT |
| Bracket Type | Other (VESA 4-75*75mm compatible) |
| Screen Curvature | None |
| High-Dynamic Range | HDR Display (as per product images) |
| Response Time | 3ms |
| Pixel Pitch | 0.12445mm |
| Features | USB port, Speaker, Gaming, Vertical mode |
Product dimensions: 355mm x 225mm x 11mm.
4. Setup and Connection
The monitor offers wide compatibility with various devices. Refer to the diagrams and instructions below for proper connection.
General equipment connection diagram.
4.1 Connecting to a Laptop (Type-C)
- Connect the full-featured Type-C cable (provided) to one of the full-featured Type-C ports (H or I) on the monitor.
- Connect the other end of the Type-C cable to your laptop's full-featured Type-C interface. Ensure your laptop's Type-C port supports full functionality (video, audio, and power delivery).
- If the monitor's power is insufficient, connect the provided power adapter to the monitor's other Type-C port.
4.2 Connecting to a Computer (HDMI)
- Connect the provided power adapter to one of the full-featured Type-C ports (H or I) on the monitor to power it.
- Once the display screen is powered on, use the provided HDMI video cable to connect the monitor's Standard HDMI port (J) to your desktop or laptop computer's HDMI output.
- If the monitor has a touch function (not applicable for this model), a USB-C to USB-A cable might be used for touch data.
4.3 Connecting to Nintendo Switch
- Connect the original power adapter of your Nintendo Switch to one of the full-featured Type-C ports (H or I) on the monitor.
- After the display is powered on, use a full-featured Type-C cable to connect the monitor's other full-featured Type-C port to the Nintendo Switch console.
4.4 Connecting to a Mobile Phone
- Ensure your mobile phone supports the USB 3.1 protocol and has a Type-C output function.
- Connect a full-featured Type-C cable to one of the monitor's full-featured Type-C ports (H or I).
- Connect the other end of the Type-C cable to your mobile phone.
- It is recommended to use the provided power adapter connected to the monitor's other Type-C port for stable power.
5. Operation
5.1 Power On/Off
- To power on the monitor, press the Power Button (C).
- To power off, press and hold the Power Button (C) until the monitor turns off.
5.2 Menu Navigation
Use the control buttons to navigate the On-Screen Display (OSD) menu:
- Menu/Confirm Setting (D): Press to open the OSD menu or confirm a selection.
- Up/Audio (E): Use to navigate up in the menu or increase volume.
- Down/Brightness (F): Use to navigate down in the menu or decrease brightness.
- Exit Button: (If present, typically a separate button or a long press of another button) to exit the menu.
5.3 Display Modes
The monitor supports various display modes to enhance productivity:
Productivity modes: Duplicate, Extend, and Second Screen.
- Duplicate Mode: Mirrors your primary display.
- Extend Mode: Extends your desktop space, allowing you to have different content on each screen.
- Second Screen Mode: Uses only the portable monitor as the display.
These modes are typically configured through your connected device's display settings (e.g., Windows Display Settings, macOS System Preferences).
6. Maintenance
Cleaning the Monitor
- Always turn off and unplug the monitor before cleaning.
- Use a soft, lint-free cloth slightly dampened with water or a non-abrasive screen cleaner.
- Do not spray cleaner directly onto the screen. Apply it to the cloth first.
- Avoid using harsh chemicals, solvents, or abrasive materials, as these can damage the screen or casing.
Storage
- When not in use for an extended period, store the monitor in a cool, dry place.
- Use the magnetic cover to protect the screen from dust and scratches.
7. Troubleshooting
Display Issues (e.g., No 4K Resolution)
Troubleshooting common 4K resolution issues.
Q: Why did I order a 4K resolution monitor and connect it to my computer without achieving 4K resolution?
- Device Compatibility: Please confirm if your computer device and its interface support connecting to a 4K monitor. Not all devices can output 4K resolution.
- Cable Quality: Please confirm if the HDMI or Type-C cable used to connect the signal supports 4K signal. It is highly recommended to use the accessory cables provided with the monitor for connection.
- Testing: You can use other computer devices that are known to support 4K output to test the monitor and verify its 4K capability.
No Signal / Black Screen
- Ensure all cables (power and signal) are securely connected to both the monitor and the source device.
- Verify that the source device (laptop, PC, console, phone) is powered on and configured to output to an external display.
- Try a different cable or port on both the monitor and the source device to rule out faulty connections.
- Ensure the monitor is receiving sufficient power, especially when connecting to devices that do not provide power (e.g., some HDMI connections).
No Audio
- Check the volume settings on both the monitor and the connected device.
- Ensure the 3.5mm audio output (K) is not in use if you intend to use the built-in speakers (L).
- Verify that the signal cable (HDMI or Type-C) is capable of transmitting audio.
8. User Tips
- Refresh Rate: The monitor operates at a 60 Hz refresh rate, suitable for general use and gaming.
- Connectivity: The monitor features versatile Type-C and HDMI inputs, making it compatible with a wide range of devices.
- Power Adapters: Always use the appropriate power adapter plug type (EU, US, UK, AU, JP) for your region.
- Touch Screen: This specific model (CX156-C) does NOT feature a touch screen.
- VESA Mounting: The monitor is VESA compatible (4-75*75mm), allowing for flexible mounting options with a separate stand (not included).
VESA compatible for flexible mounting.
9. Warranty and Support
Dear Customer,
Thank you for purchasing the Portable Monitor! We offer a 12-month warranty for any issues and provide professional technical support to ensure worry-free service.
If you have any questions or problems, please contact us via the following email address. We will respond to you within 24 hours:
Email: cxsmt@lcmhelp.com
Support Process:
| Situation | Action |
|---|---|
| Product Received & Satisfied | Keep in touch if you have any questions. |
| Product Received & Not Satisfied (Quality Problem) | Contact us for free replacement or refund. |
| Product Received & Not Satisfied (User Manual Problem) | Contact us for instructions. |
| Product Received & Not Satisfied (Package Damaged) | Contact us for compensation. |
