Why does the NEC PA622U Projector picture suddenly become dark?
- DDillon LeonSep 8, 2025
If the picture on your NEC Projector suddenly becomes dark, check if the projector is in Forced ECO mode due to a high ambient temperature.
Why does the NEC PA622U Projector picture suddenly become dark?
If the picture on your NEC Projector suddenly becomes dark, check if the projector is in Forced ECO mode due to a high ambient temperature.
How to fix unusual color tone on NEC PA622U Projector?
If the color tone or hue on your NEC Projector is unusual: * Check that an appropriate color is selected in [WALL COLOR]. * Adjust the [HUE] in the [PICTURE] settings.
What to do if the image is scrolling vertically or horizontally on my NEC PA622U?
If the image on your NEC Projector is scrolling vertically, horizontally, or both, check the computer’s resolution and frequency. Ensure that the resolution you are trying to display is supported by the projector.
How to make the image square on NEC Projector?
If the image from your NEC Projector isn't square to the screen: * Try repositioning the projector to improve its angle to the screen. * Use the Keystone correction function to correct any trapezoid distortion.
Matrix size | 0.76 \ |
---|---|
Native aspect ratio | 16:10 |
Projection distance | 0.7 - 76.4 m |
Vertical scan range | 24 - 120 Hz |
Horizontal scan range | 15 - 153 kHz |
Projection technology | 3LCD |
Supported aspect ratios | 16:10, 16:9 |
Contrast ratio (typical) | 6000:1 |
Screen size compatibility | 30 - 500 \ |
Projector native resolution | WUXGA (1920x1200) |
Keystone correction, horizontal | -40 - 40 ° |
Focus | Manual |
Throw ratio | 0.48 - 0.65:1 |
Zoom capability | Yes |
Number of optional lenses supported | 6 |
Lamp type | UHP |
Lamp power | 350 W |
Lamps quantity | 1 lamp(s) |
Light source type | Lamp |
Lamp power (economic mode) | 264 W |
Service life of light source | 3000 h |
Service life of light source (economic mode) | 4000 h |
Supported video modes | 1080i, 1080p, 480i, 480p, 576i, 576p, 720p |
Analog signal format system | NTSC, NTSC 4.43, PAL, PAL 60, PAL M, PAL N, SECAM |
Supported graphics resolutions | 2048 x 1080, 4096 x 2160, 1920 x 1200 (WUXGA), 2560 x 1600 (WQXGA), 640 x 480 (VGA) |
DVI port | No |
BNC input ports | 5 |
Headphone outputs | 2 |
Composite video in | 0 |
USB connector type | USB Type-A |
HDMI connector type | Full-size |
HDMI ports quantity | 3 |
Serial interface type | RS-232 |
USB 2.0 ports quantity | USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them. |
Maximum digital resolution | 4096 x 2160 pixels |
Optical disc player type | Not included |
Noise level | 39 dB |
Certification | CE, ErP, TÜV GS |
Noise level (economic mode) | 33 dB |
RMS rated power | 10 W |
Placement | Desktop |
Product type | Large venue projector |
Product color | White |
Cable lock slot type | Kensington |
Power source | AC |
AC input voltage | 100 - 240 V |
AC input frequency | 50 - 60 Hz |
Power consumption (standby) | 0.16 W |
Power consumption (typical) | 460 W |
Power consumption (economy mode) | 362 W |
Sustainability certificates | RoHS |
Remote control type | IR |
Depth | 359 mm |
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Width | 499 mm |
Height | 142 mm |
Weight | 8400 g |
Lists items included in the projector package.
Overview of projector features, installation, and video capabilities.
Details on connecting and managing the projector via network (LAN).
Features for reducing power consumption and displaying energy-saving effects.
Information on lamp replacement time and filter cleaning requirements.
Guidance on how to use the manual, including notations and model differentiation.
Configuration for wired and wireless LAN connections.
Identifies controls and features on the front and top of the projector.
Identifies ports and features on the rear of the projector.
Details the buttons and indicators on the projector's control panel.
Lists and describes the various input/output terminals on the projector.
Identifies and explains the functions of each button on the remote control.
Instructions for installing batteries in the remote control.
Safety and handling guidelines for the remote control.
Specifies the effective distance and angle for wireless remote control operation.
Step-by-step guide on how to turn on and project an image with the projector.
Instructions for connecting the computer and power cord to the projector.
Steps to power on the projector and display an image.
Information about the initial startup menu and language selection.
How to select the computer or video source for projection.
Setting a default input source that is displayed each time the projector is turned on.
Using lens shift, tilt feet, zoom, and focus to adjust image size and position.
Detailed steps for adjusting the projected image's vertical position using lens shift dials.
Guidance on using the focus ring to achieve the best focus for the projected image.
Instructions for adjusting focus with the NP30ZL lens unit.
Instructions for adjusting focus and picture distortion with the NP11FL lens.
How to adjust the projector's height and tilt using the tilt feet.
Instructions on using the zoom lever or ring to adjust the image size.
Automatically adjusts picture quality using the AUTO ADJ. button.
How to adjust the sound level from the projector's speaker.
Step-by-step guide for powering off the projector.
Procedures to follow after the projector has been turned off.
Temporarily mutes video and audio output using BLANK, MUTE, or AV-MUTE buttons.
How to freeze a still image and resume motion.
Steps to magnify the projected picture up to four times using D-ZOOM.
Selects lamp brightness modes for power saving and checks CO2 reduction.
Displays energy-saving effect in terms of CO2 emission reduction.
Enables computer mouse functions using the remote control.
Corrects trapezoidal distortion to make the projected image rectangular.
Sets a keyword to prevent unauthorized operation of the projector.
Instructions for watching 3D videos using active shutter 3D eyewear and emitters.
Projects PC screen image over network without computer cable.
Remotely operates a computer using the projector via network.
Projector can be used singly or arranged for multi-screen display.
Allows viewing two different signals simultaneously in PIP or Picture by Picture mode.
Combines multiple projectors to create a seamless large screen by blending edges.
Step-by-step guide on how to navigate and operate the on-screen menu system.
Explains the various components found in menu windows and dialog boxes.
Provides a comprehensive list of available menu items and their default options.
Details the functions and options available under the INPUT menu.
Explains the options within the ADJUST menu, including PICTURE and IMAGE OPTIONS.
Details functions within the DISPLAY menu, including PIP/PICTURE BY PICTURE and GEOMETRIC CORRECTION.
Adjusts projection screen edges for multi-projector setups.
Configures settings for multi-projector display modes like ZOOM and TILING.
Explains settings for language, color, display time, filters, installation, and white balance.
Displays current status of signal, lamp usage, and carbon savings.
Software for projecting computer screens, movies, and network setups.
Software for remote computer operation and password management.
Projects PC screen image over network without computer cable.
Allows remote operation of a computer via network.
Configuration for wired and wireless LAN connections specific to MM models.
Instructions for attaching and detaching optional lenses to the projector.
Details on connecting computers and AV equipment via analog RGB and digital signals.
How to connect an external monitor for simultaneous viewing.
Instructions for connecting component video and S-video signals.
Steps for connecting component video input using RCA adapters.
Instructions for connecting HDMI output devices like Blu-ray players to the projector.
Details on connecting to HDBaseT devices using LAN cables.
How to install the projector in a vertical orientation for portrait display.
Steps for establishing a wired LAN connection using the Ethernet port.
Instructions for setting up a wireless LAN connection using an optional unit.
Procedures for cleaning the projector's air filter sponge to prevent overheating.
Guidelines for cleaning the projector's plastic lens safely and effectively.
Instructions for cleaning the projector's exterior cabinet and ventilation slits.
Steps for replacing the projector lamp and filters, and clearing usage hours.
Lists bundled software and their features and operating environments.
Detailed instructions for installing software programs on Windows and Mac OS.
Using Virtual Remote Tool for projector operations over a LAN connection.
Using PC Control Utility software to manage the projector via LAN.
Sending computer screens and video to the projector over a network.
Correcting image distortion projected from an angle using GCT.
Sending computer screens to multiple projectors over a network.
Remotely operating a computer via LAN using Desktop Control Utility.
Overview of the Viewer feature for displaying files from USB or shared folders.
Guides on creating and saving presentation materials in supported formats.
Steps to start the Viewer and project images from a USB memory device.
Instructions for projecting files from a shared network folder.
Steps to set up and connect to a media server for file projection.
Notes limitations for displaying PowerPoint, Excel, and PDF files.
Tables showing throw distances for different lenses and screen sizes.
Lists screen dimensions in inches and centimeters for WUXGA/WXGA and XGA types.
Diagrams showing the lens shift adjustment range for desk/front and ceiling/front projection.
Detailed table of lens shift ranges for different applicable types and lens units.
Lists compatible analog computer, component, and composite video/S-video signals.
Technical specifications for HDBaseT models, including dimensions and power.
Provides a checklist to help resolve common projector problems and indicator messages.
Lists PC control codes and details for cable connections and PC control connector pin assignments.
Technical specifications for MM models, including dimensions and power.
Instructions for registering the projector online for warranty and service programs.