NEC NP-PX750U2 Professional Installation DLP Projector User Manual

1. Introduction

This manual provides essential information for the safe and efficient operation of your NEC NP-PX750U2 Professional Installation DLP Projector. Please read this manual thoroughly before using the projector and keep it for future reference. The NP-PX750U2 is a high-performance projector designed for professional environments, offering 7500 lumens of brightness and WUXGA resolution.

This image displays the NEC NP-PX750U2 projector from a front-right perspective. Visible features include the main projection lens, the 'PUSH RELEASE LENS' button, and extensive ventilation grilles on the front and side. The top surface shows the 'NEC' logo and indicator lights.

Key features include integrated HQV technology for advanced video processing, an Open Pluggable Specification (OPS) slot for enhanced flexibility, and edge blending functionality for seamless multi-projector displays. It also features a comprehensive input panel with HDMI, DisplayPort, and multiple computer inputs, alongside robust networking capabilities.

2. Safety Information

Observe the following safety precautions to prevent damage to the projector and ensure user safety:

• Electrical Safety: Connect the projector only to a power outlet with the specified voltage. Do not overload power outlets or extension cords.
• Heat Management: Ensure adequate ventilation around the projector. Do not block ventilation openings. Avoid placing the projector in enclosed spaces or near heat sources.
• Eye Protection: Do not look directly into the projector lens when the lamp is on, as the intense light can cause eye damage.
• Handling: Handle the projector with care. Avoid dropping or subjecting it to strong impacts.
• Maintenance: Refer all servicing to qualified service personnel. Do not attempt to open or repair the projector yourself.

3. Package Contents

Verify that all items are present in the package:

• NEC NP-PX750U2 Projector Unit
• Power Cord
• Remote Control with Batteries
• CD-ROM (User Manual, Software)
• Quick Setup Guide

Note: The projection lens is sold separately and is not included in the standard package. Ensure you have the appropriate lens (e.g., NP-PX750U2-18ZL) for your installation needs.

4. Physical Overview

Familiarize yourself with the main components of the projector:

• Front: Projection lens, ventilation grilles, lens release button.
• Top: Control panel buttons, indicator lights (Power, Lamp, Temp, Status), NEC logo.
• Rear: Input/output terminals (HDMI, DisplayPort, Computer In, Audio In/Out, LAN, USB, Control ports).
• Sides: Additional ventilation, carrying handles (if applicable).
• Bottom: Adjustable feet for leveling, mounting points for ceiling installation.

5. Setup

5.1. Placement

Position the projector on a stable, level surface or mount it securely to the ceiling. Ensure the projector is within the optimal projection distance for your screen size. Maintain clear space around the projector for proper ventilation.

5.2. Lens Installation

If your lens is not pre-installed, carefully align the lens with the lens mount on the projector. Push and twist the lens gently until it locks into place. Refer to the lens-specific manual for detailed installation instructions.

5.3. Power Connection

Connect the supplied power cord to the projector's AC inlet and then to a grounded electrical outlet.

5.4. Input Connections

Connect your video sources (e.g., computer, Blu-ray player) to the appropriate input terminals on the projector using high-quality cables. The NP-PX750U2 features HDMI, DisplayPort, and three computer inputs for versatile connectivity.

5.5. Network Connection

For network control and features, connect an Ethernet cable to the RJ45 LAN port. Optional high-speed wireless connectivity (LAN IEEE 80.11b/g/n) is also available with an appropriate wireless adapter.

6. Operation

6.1. Powering On/Off

• Power On: Press the power button on the control panel or remote control. The projector will initiate its startup sequence. The Auto Power On feature can be configured to power on automatically when a signal is detected.
• Power Off: Press the power button twice. The projector will enter a cooling cycle before shutting down. The Direct Power Off feature allows for immediate shutdown without a cooling cycle, useful for quick packing.

6.2. Input Source Selection

Use the 'Input' button on the control panel or remote control to cycle through available input sources (HDMI, DisplayPort, Computer 1/2/3, etc.).

6.3. Image Adjustment

• Focus: Adjust the lens focus ring until the image is sharp.
• Zoom: Adjust the lens zoom ring to achieve the desired image size.
• Keystone Correction: Use the menu options to correct trapezoidal distortion if the projector is not perfectly perpendicular to the screen.

6.4. Advanced Features

• HQV Technology: This integrated high-performance video processing/scaling system optimizes computer signals and standard/high-definition video for superior image quality.
• Open Pluggable Specification (OPS): Utilize the OPS slot for simplified installation, use, and maintenance of optional input modules, enhancing input flexibility.
• Edge Blending: Seamlessly combine images from multiple projectors to create a single, large, high-resolution display. Configure this feature through the projector's on-screen menu.

7. Maintenance

Regular maintenance ensures optimal performance and extends the lifespan of your projector.

• Lens Cleaning: Gently wipe the lens with a soft, lint-free cloth specifically designed for optical surfaces. Do not use abrasive cleaners.
• Air Filter Cleaning/Replacement: Periodically clean the air filters to prevent dust buildup, which can affect cooling and image quality. Refer to the on-screen menu for filter usage time and replacement instructions.
• Lamp Replacement: The lamp has a finite lifespan. When the lamp indicator lights up or the image brightness decreases significantly, replace the lamp according to the instructions in the detailed service manual. Always use genuine NEC replacement lamps.
• Exterior Cleaning: Wipe the projector's exterior with a soft, dry cloth. Avoid using harsh chemicals.

8. Troubleshooting

If you encounter issues, refer to the following common problems and solutions:

• No Power: Ensure the power cord is securely connected and the power outlet is functional. Check the power indicator light.
• No Image: Verify that the correct input source is selected. Check all video cable connections. Ensure the lens cap is removed.
• Image Distortion/Blurry Image: Adjust the focus and zoom rings on the lens. Use keystone correction if the image is trapezoidal.
• Remote Control Not Working: Check the batteries and ensure there are no obstructions between the remote and the projector's IR receiver.
• Overheating Warning: Ensure ventilation openings are clear and the ambient temperature is within the specified operating range. Clean air filters if necessary.

For more complex issues, consult the detailed user manual on the provided CD-ROM or contact NEC customer support.

9. Specifications

10. Warranty and Support

The NEC NP-PX750U2 Projector comes with a standard manufacturer's warranty. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official NEC website. For technical assistance, troubleshooting, or service inquiries, please contact NEC customer support directly. Keep your purchase receipt and product serial number readily available when contacting support.