1. Introduction
1.1 Product Overview
The NEC NP-P502H is a professional installation projector designed for various environments, including classrooms, boardrooms, and training rooms. It features 5000 lumens brightness, a 6,000:1 contrast ratio, and advanced installation capabilities such as horizontal and vertical lens shift and keystone correction. This projector supports dual HDMI inputs with HDCP for versatile connectivity.
1.2 What's in the Box
- NEC NP-P502H Projector
- Remote Control
- Power Cord
- User Manual (this document)
- Quick Start Guide
2. Safety Information
Please read all safety instructions before operating the projector to prevent injury or damage to the unit.
- Power Source: Use only the specified power supply. Ensure the power cord is securely connected and not damaged.
- Ventilation: Do not block ventilation openings. Ensure adequate space around the projector for proper airflow to prevent overheating.
- Lens: Do not look directly into the projector lens when the lamp is on, as this can cause eye damage.
- Placement: Place the projector on a stable, level surface. Avoid locations with excessive dust, humidity, or extreme temperatures.
- Servicing: Do not attempt to service the projector yourself. Refer all servicing to qualified service personnel.
3. Setup
3.1 Physical Placement
Position the projector at the desired distance from the screen. The NP-P502H offers horizontal and vertical lens shift capabilities to adjust the image position without moving the projector. Use the lens shift controls located near the lens to fine-tune the image placement.
3.2 Connecting Devices
The projector features a variety of input and output ports on its rear panel. Connect your source devices (e.g., laptop, Blu-ray player) to the appropriate ports.
Figure 3.2.1: Rear panel connections of the NP-P502H Projector.
- HDMI 1 IN / HDMI 2 IN: Connect HDMI-compatible devices for digital video and audio.
- COMPUTER IN (VGA): Connect a computer via a VGA cable.
- MONITOR OUT (COMP): Connect an external monitor to display the projector's input signal.
- VIDEO IN: Connect composite video devices.
- AUDIO IN (L/MONO, R): Connect analog audio sources.
- AUDIO OUT: Connect external audio systems.
- USB: For firmware updates or connecting compatible USB devices.
- LAN (Ethernet): For network control and monitoring.
- REMOTE: For wired remote control connection.
- PC CONTROL (RS-232C): For serial control from a computer.
3.3 Powering On/Off
Connect the power cord to the projector and a suitable electrical outlet. Press the POWER button on the projector's control panel or remote control to turn the projector on. To turn off, press the POWER button again and confirm the shutdown.
4. Operating
4.1 Control Panel Overview
The projector's top panel features essential controls for basic operation.
Figure 4.1.1: Top control panel of the NP-P502H Projector.
- POWER: Turns the projector on or off.
- SOURCE: Selects the input source (e.g., HDMI 1, Computer).
- ECO: Activates or deactivates ECO mode for power saving and extended lamp life.
- AUTO ADJ: Automatically adjusts the image for optimal display.
- MENU: Opens the On-Screen Display (OSD) menu.
- ENTER: Confirms selections in the OSD menu.
- EXIT: Closes the OSD menu or returns to the previous screen.
- Navigation Arrows (Up, Down, Left, Right): Navigate through OSD menu options and adjust settings.
4.2 Input Selection
Press the SOURCE button on the control panel or remote control to cycle through available input sources. Alternatively, use the OSD menu to select a specific input.
4.3 Image Adjustments
Access the OSD menu by pressing the MENU button. Use the navigation arrows to select and adjust settings such as:
- Brightness/Contrast: Adjust image luminance and distinction.
- Aspect Ratio: Select the desired display ratio (e.g., 16:9, 4:3).
- Keystone Correction: Correct trapezoidal image distortion if the projector is not perfectly perpendicular to the screen.
- Color Settings: Fine-tune color temperature, tint, and saturation.
4.4 Audio Settings
The projector features variable audio-out, allowing the remote control to adjust the speaker volume. Adjust audio settings through the OSD menu, including volume, mute, and audio input selection.
4.5 ECO Mode
The ECO mode reduces lamp power, extending lamp life and lowering power consumption. Press the ECO button to toggle this feature. This projector features a 5000-hour filter, which contributes to reduced maintenance frequency.
5. Maintenance
Regular maintenance ensures optimal performance and extends the lifespan of your projector.
5.1 Filter Cleaning/Replacement
The projector is equipped with a 5000-hour filter. Periodically check and clean the air filter to prevent dust buildup, which can affect cooling and image quality. Refer to the OSD menu for filter usage time. Replace the filter when prompted or if it appears heavily soiled.
5.2 Lens Cleaning
Gently wipe the projector lens with a soft, lint-free cloth specifically designed for optical surfaces. Do not use abrasive cleaners or excessive force.
5.3 General Cleaning
Wipe the projector's exterior with a soft, dry cloth. For stubborn dirt, use a slightly damp cloth with a mild, non-abrasive cleaner. Ensure no liquid enters the projector.
6. Troubleshooting
This section addresses common issues you might encounter with your projector.
6.1 No Image Displayed
- Ensure the projector is powered on and the lamp is lit.
- Verify that the correct input source is selected (e.g., HDMI 1, Computer).
- Check the connection cable between the source device and the projector. Try re-seating the cable or using a different cable.
- Confirm the source device is outputting a signal.
6.2 Image is Distorted or Blurry
- Adjust the focus ring on the projector lens.
- Use keystone correction in the OSD menu to correct trapezoidal distortion.
- Check the projector's physical alignment with the screen.
- Ensure the resolution settings on your source device are compatible with the projector.
6.3 No Sound
- Check the volume level on both the projector and the source device.
- Ensure the projector is not muted.
- Verify audio cables are correctly connected (if using analog audio).
- If using HDMI, ensure the source device is sending audio through HDMI.
6.4 Remote Control Not Working
- Replace the batteries in the remote control.
- Ensure there are no obstructions between the remote and the projector's IR receiver.
- Point the remote directly at the projector.
7. Specifications
Below are the technical specifications for the NEC NP-P502H Projector.
| Feature | Specification |
|---|---|
| Brand | NEC |
| Model Number | NP-P502H |
| Item Weight | 12.1 pounds |
| Product Dimensions | 14.3 x 11.9 x 5 inches |
| Display Resolution | 1920 x 1080 (Full HD) |
| Connectivity Technology | HDMI, USB, LAN, VGA, RS-232C |
| Special Features | Internet-ready, Built-in speakers, Lens Shift, Keystone Correction |
| Recommended Uses | Business, Education, Home Cinema |
| Contrast Ratio | 6,000:1 |
| Filter Life | 5000 hours |
8. Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or visit the official NEC website. Keep your proof of purchase for warranty claims.
