1. Introduction and Overview
This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your ASUS PB277Q 27-inch 1440P Eye Care Monitor. The PB277Q features a 27-inch WQHD (2560x1440) display with a 75Hz refresh rate and a 1ms response time, designed for clear visuals. It incorporates ASUS Eye Care technologies, including Flicker-Free and Low Blue Light, to reduce eye strain during extended use. Connectivity options include DisplayPort, HDMI, and DVI.
Key features include:
- 27-inch 16:9 WQHD (2560 x 1440) display at 75Hz with 1ms response time.
- ASUS Eye Care technology (TUV certified Flicker Free and Blue Light Filter).
- Ergonomically designed stand with tilt, swivel, pivot, and height adjustment.
- Extensive connectivity: HDMI, DisplayPort, and Dual-link DVI.
- Picture-in-Picture (PiP) and Picture-by-Picture (PbP) modes for enhanced productivity.
- VESA wall mounting capability (100x100mm).
2. What's in the Box
Upon unpacking, please ensure all the following items are present and in good condition:
- ASUS PB277Q Monitor
- Power cord
- DP1.2 cable (DisplayPort cable)
- HDMI 1.4 Cable
- VGA cable
- DVI Dual-Link cable
- Audio cable
- Quick Start Guide (QSG)
- Warranty card
If any items are missing or damaged, please contact your retailer or ASUS customer support.
3. Setup Instructions
3.1 Assembling the Monitor Stand
- Carefully place the monitor face down on a soft, clean surface to prevent scratches.
- Attach the stand base to the stand neck, ensuring it clicks securely into place or is fastened with the provided screw.
- Connect the assembled stand to the back of the monitor until it locks securely.

Figure 3.1: Front-right view of the ASUS PB277Q monitor with its stand.
3.2 Connecting Cables
Connect the necessary cables to the corresponding ports on the back of the monitor and your computer.
- Video Input: Connect one of the provided video cables (DisplayPort, HDMI, DVI, or VGA) from your computer's graphics card to the corresponding input port on the monitor. For optimal resolution (2560x1440), DisplayPort or Dual-link DVI is recommended.
- Audio Input: If using the monitor's built-in speakers or headphone jack, connect the audio cable from your computer's audio output to the monitor's audio input port.
- Power: Connect the power cord to the monitor's power input, then plug the other end into a grounded electrical outlet.

Figure 3.2: Rear view of the monitor displaying available connectivity ports.
3.3 Initial Power On
Press the power button on the monitor. The power indicator will light up, and the display will turn on. If no image appears, ensure all cables are securely connected and your computer is powered on.
4. Operating Instructions
4.1 On-Screen Display (OSD) Menu
The OSD menu allows you to adjust various monitor settings. Use the buttons located on the bottom right bezel of the monitor to navigate and select options.
- Menu Button: Activates the OSD menu.
- Navigation Buttons: Used to move through menu options (up/down/left/right).
- Select Button: Confirms a selection or enters a sub-menu.
- Exit Button: Exits the current menu or OSD.
Common adjustable settings include brightness, contrast, color temperature, input selection, and audio volume.
4.2 ASUS Eye Care Technology
The PB277Q incorporates Flicker-Free technology to reduce screen flickering and a Low Blue Light filter to minimize harmful blue light emissions. These features are designed to reduce eye strain and fatigue during prolonged viewing. You can adjust the Blue Light Filter level through the OSD menu.
4.3 Ergonomic Adjustments
The monitor stand allows for various ergonomic adjustments to optimize your viewing comfort:
- Height Adjustment: Raise or lower the monitor to eye level.
- Tilt: Adjust the screen's vertical angle (forward or backward).
- Swivel: Rotate the monitor horizontally on its base.
- Pivot: Rotate the screen 90 degrees to switch between landscape and portrait orientation.

Figure 4.1: Side view illustrating the monitor's tilt adjustment.
4.4 Picture-in-Picture (PiP) and Picture-by-Picture (PbP)
The monitor supports PiP and PbP modes, allowing you to display content from multiple sources simultaneously.
- PiP (Picture-in-Picture): Displays the main input source across the full screen, with a secondary input source shown in a smaller window overlay.
- PbP (Picture-by-Picture): Divides the screen to display two input sources side-by-side.
These modes can be configured via the OSD menu, where you can select the input sources and adjust the size/position of the secondary window for PiP.
5. Maintenance
5.1 Cleaning the Monitor
- Always power off the monitor and unplug the power cord before cleaning.
- Use a soft, lint-free cloth lightly 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 alcohol, ammonia, or abrasive cleaners, as these can damage the screen surface.
- Wipe the screen gently to remove dust and smudges.
6. Troubleshooting
If you encounter issues with your ASUS PB277Q monitor, refer to the following common problems and solutions:
| Problem | Possible Solution |
|---|---|
| No image on screen |
|
| Image is blurry or distorted |
|
| No audio |
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| Monitor flickers |
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For further assistance, please contact ASUS customer support.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | ASUS |
| Model Number | PB277Q |
| Screen Size | 27 Inches |
| Resolution | QHD Wide 1440p (2560 x 1440 Pixels) |
| Aspect Ratio | 16:9 |
| Refresh Rate | 75 Hz |
| Response Time | 1 Milliseconds |
| Display Type | LCD |
| Brightness | 350 cd/㎡ |
| Contrast Ratio | [1000:1 - 3000:1] |
| Viewing Angle | 170 Degrees |
| Connectivity Technology | DVI, DisplayPort, HDMI, VGA |
| Adaptive Sync | FreeSync |
| Eye Care Technology | ASUS Eye Care Technology (Flicker-Free, Blue Light Filter) |
| Mounting Type | VESA Wall Mount (100x100mm) |
| Item Weight | 7.3 Kilograms |
8. Warranty and Support
8.1 Warranty Information
The ASUS PB277Q monitor comes with a 3 Years Manufacturer Warranty, including ASUS Rapid Replacement Service. Please refer to the warranty card included in your product packaging for full terms and conditions. Keep your proof of purchase for warranty claims.
8.2 Customer Support
For technical support, service, or further inquiries, please visit the official ASUS support website or contact their customer service hotline. Contact information can typically be found on the ASUS website or in the Quick Start Guide.





