7. Appendix

Troubleshooting Check List

Before contacting your dealer or service personnel, check the following list to be sure repairs are needed also by referring to the “Troubleshooting” section in your user’s manual. This checklist below will help us solve your problem more efficiently.

* Print this page and the next page for your check.

Frequency of occurrence always sometimes (How often?_____________________) other (__________________)

Power

No power (POWER indicator does not light green) See also “Status Indicator (STATUS)”.

Power cable’s plug is fully inserted into the wall outlet.

Main power switch is pressed to the ON position.

Lamp cover is installed correctly .

Lamp Hours Used (lamp operation hours) was cleared after lamp replacement.

No power even though you press and hold the POWER button for 1 second.

Shut down during operation.

Power cable’s plug is fully inserted into the wall outlet.

Lamp cover is installed correctly .

[AUTO POWER OFF] is turned off (only models with the [AUTO POWER OFF] function).

[OFF TIMER] is turned off (only models with the [OFF TIMER] function).

Video and Audio

No image is displayed from your PC or video equipment to the projector.

Still no image even though you connect the projector to the PC first, then start the PC.

Enabling your notebook PC’s signal output to the projector.

A combination of function keys will enable/disable the exter- nal display. Usually, the combination of the “Fn” key along with one of the 12 function keys turns the external display on or off.

No image (blue or black background, no display).

Still no image even though you press the AUTO ADJUST button.

Still no image even though you carry out [RESET] in the projector’s menu.

Signal cable’s plug is fully inserted into the input connector

A message appears on the screen.

( _____________________________________________ )

The source connected to the projector is active and available.

Still no image even though you adjust the brightness and/or the contrast.

Input source’s resolution and frequency are supported by the projector.

Image is too dark.

Remains unchanged even though you adjust the brightness and/or the contrast.

Image is distorted.

Image appears to be trapezoidal (unchanged even though you carry out the [KEYSTONE] adjustment).

Parts of the image are lost.

Still unchanged even though you press the AUTO ADJUST button.

Still unchanged even though you carry out [RESET] in the projector’s menu.

Image is shifted in the vertical or horizontal direction.

Horizontal and vertical positions are correctly adjusted on a computer signal.

Input source’s resolution and frequency are supported by the projector.

Some pixels are lost.

Image is flickering.

Still unchanged even though you press the AUTO ADJUST button.

Still unchanged even though you carry out [RESET] in the projector’s menu.

Image shows flickering or color drift on a computer signal.

Still unchanged even though you change [FAN MODE] from [HIGH ALTITUDE] to [AUTO].

Image appears blurry or out of focus.

Still unchanged even though you checked the signal’s resolution on PC and changed it to projector’s native resolution.

Still unchanged even though you adjusted the focus.

No sound.

Audio cable is correctly connected to the audio input of the projector.

Still unchanged even though you adjusted the volume level.

AUDIO OUT is connected to your audio equipment (only models with the AUDIO OUT connector).

Other

Remote control does not work.

No obstacles between the sensor of the projector and the remote control.

Projector is placed near a fluorescent light that can disturb the infrared remote controls.

Batteries are new and are not reversed in installation.

Buttons on the projector cabinet do not work (only models with the [CONTROL PANEL LOCK] function)

[CONTROL PANEL LOCK] is not turned on or is disabled in the menu.

Still unchanged even though you press and hold the EXIT button for a minimum of 10 seconds.

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NEC NP600G, NP500WG, NP500G, NP400G user manual  Troubleshooting Check List, Power, Video and Audio, Other

NP500, NP600G, NP400G, NP500G, NP400 specifications

The NEC NP600, NP500, NP500W, NP300, and NP400 are a series of high-performance projectors designed for a range of professional and educational applications. Each model in this lineup offers unique features and technologies to cater to various user needs, making them popular choices in the projection market.

The NEC NP600 is a state-of-the-art projector that utilizes DLP technology, providing exceptional image quality with vibrant colors and sharp details. With a brightness of 6000 lumens, it is perfect for large spaces where ambient light may impact visibility. The NP600 supports a high XGA resolution, ensuring that even the finest text is displayed clearly. Additionally, this model is equipped with advanced connectivity options, allowing seamless integration with laptops, document cameras, and other multimedia devices.

Moving to the NEC NP500, this model focuses on delivering versatility and portability for users on the go. With a compact design and weighing in at just under 5 kg, it can easily be transported between locations. The NP500 boasts a brightness of 5000 lumens and native XGA resolution, making it suitable for medium-sized meeting rooms. Its rich color reproduction and quick start-up time further enhance its usability, ensuring that presentations can be initiated without delay.

The NP500W is an enhancement of the NP500, offering WXGA resolution to cater to widescreen content. This projector ensures that high-definition presentations are delivered with striking clarity and precision. With a brightness level of 5000 lumens, the NP500W also incorporates advanced lamp technology that ensures extended lamp life—reducing maintenance costs over time.

The NP300 is designed for budget-conscious users without sacrificing quality. This projector provides a brightness of 3000 lumens, making it suitable for small to medium-sized venues. It supports SVGA resolution, and its compact size enhances portability. Its simple setup and user-friendly interface make it an ideal choice for educational environments.

Lastly, the NP400 is an engaging option for corporate use. With a brightness of 4000 lumens, it balances performance and affordability effectively. The NP400 supports XGA resolution and features multiple connectivity options, allowing compatibility with various devices. Its eco-friendly design also contributes to energy conservation, ensuring that it remains a sustainable choice for organizations.

Collectively, the NEC NP series offers impressive performance across varying needs, with advanced technology, flexibility in use, and reliability that ensures successful presentations in any environment. Whether for education, corporate, or professional use, these models provide high-quality projection solutions adaptable to different situations.