1. Introduction
Thank you for choosing the KTC H25Y7 24.5 Inch Gaming Monitor. This monitor is engineered to provide an immersive and high-performance gaming experience, as well as excellent visual clarity for various applications. Featuring a Fast IPS panel, a high refresh rate of 300Hz (overclockable to 320Hz), and a rapid 1ms response time, it delivers smooth, blur-free motion. With Adaptive-Sync technology, HDR10 support, and a wide color gamut, the H25Y7 ensures vibrant and accurate visuals. This manual provides detailed instructions for setup, operation, maintenance, and troubleshooting to help you get the most out of your new monitor.

2. Package Contents
Please check the package contents carefully. If any items are missing or damaged, please contact your retailer.
- KTC H25Y7 24.5 Inch Gaming Monitor
- Monitor Stand (Base and Neck)
- Power Adapter and Power Cable (EU Plug)
- DisplayPort (DP) Cable
- HDMI Cable
- User Manual (this document)
- Screws for stand assembly
3. Product Overview
3.1 Monitor Features
- 24.5-inch Full HD (1920x1080) Fast IPS Panel
- 300Hz Refresh Rate (overclockable to 320Hz)
- 1ms Response Time (Black and White)
- Adaptive-Sync Technology (AMD FreeSync compatible, G-Sync compatible)
- HDR10 Support
- 119% sRGB and 95% DCI-P3 Color Gamut Coverage
- 400cd/m² Brightness
- 4000:1 Contrast Ratio
- 178° Horizontal and Vertical Viewing Angles
- Hardware-based Low Blue Light Technology
- Ergonomic Stand with Tilt, Swivel, Height, and Pivot Adjustments

3.2 Input/Output Ports
The monitor is equipped with the following ports on the rear panel:
- 1 x DC Power Input
- 2 x HDMI 2.0 Ports (supports 1920x1080 @ 240Hz)
- 1 x DisplayPort 1.4 (supports 1920x1080 @ 300Hz)
- 1 x 3.5mm Headphone Jack

4. Setup Guide
4.1 Assembling the Stand
- Carefully remove the monitor and stand components from the packaging.
- Attach the stand neck to the monitor panel using the provided screws.
- Attach the stand base to the stand neck, securing it with the thumb screw or other fasteners.
- Place the assembled monitor on a stable, flat surface.

4.2 Connecting to a Computer
- Ensure both the monitor and your computer are powered off.
- Connect one end of the DisplayPort (DP) cable to the DP 1.4 port on the monitor and the other end to the DisplayPort output on your computer's graphics card. For HDMI connection, use an HDMI 2.0 cable to connect to one of the HDMI ports on the monitor and your computer.
- Connect the power adapter to the DC power input on the monitor, then plug the power cable into a power outlet.
- (Optional) Connect headphones or external speakers to the 3.5mm headphone jack on the monitor.
4.3 Initial Power On
- Power on your computer.
- Press the power button on the monitor to turn it on.
- The monitor should automatically detect the input signal. If not, you may need to manually select the input source using the OSD menu.
5. Operating Instructions
5.1 OSD Menu Navigation
The On-Screen Display (OSD) menu allows you to adjust various monitor settings. The control buttons are typically located on the back or bottom of the monitor. Refer to the physical buttons on your monitor for exact layout.
- Power Button: Turns the monitor on/off.
- Menu Button: Opens the OSD menu.
- Navigation Buttons (Up/Down/Left/Right): Used to navigate through menu options and adjust values.
- Exit/Back Button: Exits the current menu or goes back to the previous level.
- Input Select Button: Quickly switches between input sources (DP, HDMI1, HDMI2).
5.2 Display Settings
Access the OSD menu to adjust settings such as:
- Brightness/Contrast: Adjust the overall luminance and contrast of the display.
- Color Settings: Fine-tune color temperature, gamma, and individual RGB values.
- Picture Mode: Select from preset modes (e.g., Standard, Game, Movie, Text).
- Refresh Rate: Verify and set the desired refresh rate. For 300Hz/320Hz, ensure your graphics card and cable support it.
- Adaptive Sync: Enable or disable Adaptive-Sync (FreeSync/G-Sync compatible) for tear-free gaming.
- HDR: Enable or disable High Dynamic Range.
- Low Blue Light: Activate the hardware-based low blue light filter to reduce eye strain.

5.3 Stand Adjustments
The ergonomic stand allows for flexible positioning:
- Tilt: Adjust the screen's vertical angle (typically -5° to +20°).
- Height: Raise or lower the monitor to your preferred viewing height (approx. 110mm ± 5mm hub).
- Swivel: Rotate the monitor horizontally on its base.
- Pivot (Vertical): Rotate the screen 90 degrees for portrait mode viewing.

6. Maintenance
6.1 Cleaning the Monitor
- Always unplug the monitor from the power outlet before cleaning.
- Use a soft, lint-free cloth slightly dampened with water or a mild, non-abrasive screen cleaner.
- Do not spray cleaner directly onto the screen. Apply it to the cloth first.
- Avoid using benzene, thinner, ammonia-based cleaners, or abrasive pads, as these can damage the screen or casing.
6.2 General Care
- Keep the monitor away from direct sunlight, excessive heat, and humidity.
- Ensure adequate ventilation around the monitor to prevent overheating.
- Avoid placing heavy objects on the monitor or its cables.
- If the monitor will not be used for an extended period, unplug it from the power outlet.
7. Troubleshooting
7.1 No Power
- Check if the power cable is securely connected to the monitor and the power outlet.
- Ensure the power adapter is functioning correctly.
- Press the monitor's power button to ensure it's turned on.
7.2 No Signal
- Verify that the video cable (DP or HDMI) is securely connected to both the monitor and your computer.
- Ensure the correct input source is selected on the monitor via the OSD menu.
- Check if your computer is powered on and not in sleep mode.
- Try a different video cable or port if available.
7.3 Image Flickering or Tearing
- Ensure Adaptive-Sync (FreeSync/G-Sync compatible) is enabled in the monitor's OSD menu and in your graphics card settings.
- Check your graphics card drivers and update them to the latest version.
- Try a different DisplayPort or HDMI cable, especially if using a high refresh rate.
- Reduce the refresh rate in your computer's display settings to see if the issue persists.

7.4 Color Inaccuracies
- Reset the monitor's color settings to factory defaults via the OSD menu.
- Adjust color temperature, gamma, or individual RGB values in the OSD menu.
- Ensure your graphics card color settings are correctly configured.
8. Specifications
| Feature | Specification |
|---|---|
| Brand Name | KTC |
| Model | H25Y7 |
| Display Size | 24.5 inches |
| Resolution | 1920x1080 (FHD) |
| Refresh Rate | 300Hz (overclockable to 320Hz) |
| Response Time | 1ms (Black and White) |
| Panel Type | Fast IPS |
| Adaptive Sync Technology | AMD FreeSync (G-Sync compatible) |
| HDR | HDR10 |
| Color Gamut | 119% sRGB, 95% DCI-P3 |
| Brightness | 400cd/m² |
| Contrast Ratio | 4000:1 |
| Viewing Angle | 178° (Horizontal/Vertical) |
| Display Ratio | 16:9 |
| Screen Surface | MATT |
| Matrix Color Depth | 8 bit |
| Built-in Speaker | No |
| Interface Type | DP, HDMI |
| Ports | 1x DisplayPort 1.4, 2x HDMI 2.0, 1x 3.5mm Audio Out, DC Power |
| Bracket Type | Swivel Lift Bracket (Adjustable Height, Tilt, Swivel, Pivot) |
| Plug Type | EU Plug |
| Product Dimensions (Packaged) | 74cm (L) x 11cm (W) x 47cm (H) |
| Product Weight (Packaged) | 5.2 kg |
9. User Tips
Based on common user inquiries and feedback, here are some helpful tips:
- Panel Type Clarification: While some older product descriptions might mention "VA panel", this monitor is equipped with a Fast IPS panel as indicated by the product title and primary marketing materials. Fast IPS panels offer superior color accuracy and wider viewing angles compared to VA panels, making them ideal for gaming and professional use.
- Achieving Max Refresh Rate: To achieve the full 300Hz or overclocked 320Hz refresh rate, ensure you are using the DisplayPort 1.4 connection. HDMI 2.0 ports support up to 240Hz at 1080p. Also, verify that your graphics card and its drivers are up to date and capable of outputting these refresh rates.
- Adaptive Sync Setup: For the best gaming experience, enable Adaptive-Sync in both the monitor's OSD menu and your graphics card control panel (e.g., AMD Radeon Software for FreeSync, or NVIDIA Control Panel for G-Sync compatibility).
- Ergonomic Adjustments: Take full advantage of the monitor's adjustable stand. Adjust the height, tilt, swivel, and even pivot to portrait mode to find the most comfortable viewing position and reduce neck and eye strain during long sessions.
10. Warranty and Support
KTC provides a manufacturer's warranty for this product. For detailed warranty terms, conditions, and duration, please refer to the warranty card included in your package or visit the official KTC website.
For technical support, troubleshooting assistance, or service inquiries, please contact KTC customer support through their official channels. Please have your monitor model (H25Y7) and serial number ready when contacting support.





