1. Introduction
This manual provides essential information for the safe and efficient use of your Sharp PN-L705H 4K UHD Interactive Display. The PN-L705H is a 70-inch interactive touchscreen display featuring 4K Ultra-HD resolution and capacitive touch technology. Please read this manual thoroughly before operating the display and retain it for future reference.
2. Safety Information
Observe the following safety precautions to prevent damage to the display and ensure user safety:
- Do not block ventilation openings. Ensure adequate space around the display for proper airflow.
- Do not expose the display to rain or moisture to avoid fire or electric shock.
- Use only the power cord supplied with the display or a suitable replacement.
- Do not attempt to service this product yourself. Refer all servicing to qualified service personnel.
- Ensure the display is installed on a stable surface or mounted securely to prevent tipping.
3. Setup
3.1 Unpacking
Carefully remove the display from its packaging. Retain all packaging materials for future transport or storage. Inspect the display for any signs of damage. If damage is found, contact your dealer immediately.
Image 1: Sharp PN-L705H Interactive Display being carefully removed from its protective packaging.
3.2 Physical Installation
The PN-L705H can be installed on a compatible stand or wall-mounted using a VESA-compliant mounting bracket (sold separately). Ensure the mounting solution can support the display's weight of approximately 278 pounds (126 kg).
- For stand installation: Securely attach the display to the stand according to the stand's instructions.
- For wall mounting: Attach the VESA bracket to the rear of the display using appropriate screws. Mount the display to a sturdy wall structure capable of supporting its weight.
Image 2: Illustrative rear view of the Sharp PN-L705H, highlighting VESA mounting points for wall installation.
3.3 Connecting Cables
Connect the necessary cables to the display's input ports. The PN-L705H supports various video inputs and includes a built-in stereo audio system.
- Power Cable: Connect the power cable to the AC IN port on the display and then to a grounded electrical outlet.
- Video Input: Connect your source device (e.g., PC, media player) to one of the available HDMI or DisplayPort inputs.
- USB for Touch: Connect a USB cable from your source PC to the display's USB upstream port to enable touch functionality.
- Audio Input/Output: If using external audio, connect audio cables as required. The display has built-in 10W per channel stereo speakers.
Image 3: Close-up view of the Sharp PN-L705H's input/output panel, illustrating various connection ports.
3.4 Initial Power-On
After all connections are made, press the power button located on the display's frame. The display will power on and show the Sharp logo, followed by the selected input source.
4. Operating the Display
4.1 Power On/Off
- To power on: Press the Power button once.
- To power off: Press the Power button once. A confirmation message may appear. Confirm to shut down.
4.2 Touchscreen Operation
The PN-L705H features a highly responsive capacitive touchscreen. Ensure the USB cable for touch is connected to your PC.
- Tap: Equivalent to a mouse click.
- Drag: Touch and hold, then move your finger across the screen.
- Pinch-to-Zoom: Use two fingers to zoom in or out on content.
- Writing: Use a finger or a compatible stylus for writing and drawing.
4.3 Input Source Selection
To switch between connected devices, use the display's on-screen menu or dedicated input buttons (if available) on the display's frame.
- Press the Menu button on the display or remote control.
- Navigate to the Input or Source section.
- Select the desired input (e.g., HDMI 1, DisplayPort).
4.4 Display Settings
Adjust picture and sound settings via the on-screen display (OSD) menu.
- Picture: Adjust brightness, contrast, color temperature, and sharpness.
- Audio: Control volume, balance, and select audio input/output modes.
- Advanced: Access settings for aspect ratio, power management, and OSD language.
5. Maintenance
5.1 Cleaning the Display
To maintain optimal image quality and touch responsiveness, keep the screen clean.
- Always power off and unplug the display 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, abrasive pads, or solvents.
5.2 General Care
- Avoid placing objects on top of the display.
- Do not expose the display to extreme temperatures or humidity.
- Ensure proper ventilation to prevent overheating.
6. Troubleshooting
If you encounter issues with your Sharp PN-L705H, refer to the following common problems and solutions:
6.1 No Power
- Check if the power cable is securely connected to both the display and the electrical outlet.
- Verify that the power outlet is functional by plugging in another device.
- Ensure the power button on the display is pressed.
6.2 No Image on Screen
- Confirm that the correct input source is selected on the display (e.g., HDMI 1, DisplayPort).
- Check the video cable connection between the source device and the display. Try re-seating the cable.
- Ensure the source device (e.g., PC) is powered on and outputting a signal.
- Test with a different video cable or source device if possible.
6.3 Touch Function Not Responding
- Verify that the USB cable for touch is securely connected from the display to your PC.
- Ensure the correct drivers for the touch functionality are installed on your PC (if required by your operating system).
- Restart both the display and the connected PC.
- Check for any physical obstructions on the screen surface.
If these steps do not resolve the issue, please contact customer support.
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | PNL705H |
| Screen Size | 70 Inches |
| Screen Resolution | 3840 x 2160 Pixels (4K UHD) |
| Display Technology | UV2A Edge Lit LCD |
| Touch Technology | Capacitive Touch Screen with Direct Bonding |
| Aspect Ratio | 16:9 |
| Built-in Audio | 10W per Channel Stereo Audio System |
| Item Weight | 278 pounds |
| Color | Black |
8. Warranty and Support
8.1 Warranty Information
This Sharp product is covered by a limited warranty. Please refer to the warranty card included with your product or visit the official Sharp website for detailed terms and conditions. Keep your proof of purchase for warranty claims.
8.2 Customer Support
For technical assistance, troubleshooting beyond this manual, or service inquiries, please contact Sharp customer support. Contact information can typically be found on the official Sharp website or in your product's documentation.
When contacting support, please have your model number (PNL705H) and serial number ready.





