Troubleshooting

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The signal cable should be completely connected to the display card/computer.

The display card should be completely seated in its slot.

Make sure the vacation switch is in ON position.

Front Power Switch and computer power switch should be in the ON position.

Check to make sure that a supported mode has been selected on the display card or system being used. (Consult display card or system manual to change graphics mode.)

Check the monitor and your display card with respect to compatibility and recommended settings.

Check the signal cable connector for bent or pushed-in pins.

Check the signal input, “DVI-I”, or “D-Sub”.

Check the DVI -SELECTION”DIGITAL “ or “ANALOG” in DVI-I input.

If the front LED is dark green or blue, check the status of the IPM mode (see page 13).

Power Button does not respond

Unplug the power cord of the monitor from the AC outlet to turn off and reset the monitor.

Check the Vacation Switch on the back side of the monitor.

Image Persistence

Image persistence is when a residual or “ghost” image of a previous image remains visible on the screen. Unlike CRT monitors, LCD monitorsʼ image persistence is not permanent, but constant images being displayed for a long period of time should be avoided. To alleviate image persistence, turn off the monitor for as long as the previous image was displayed. For example, if an image was on the monitor for one hour and a residual image remains, the monitor should be turned off for one hour to erase the image.

NOTE: As with all personal display devices, NEC DISPLAY SOLUTIONS recommends using a moving screen saver at regular intervals whenever the screen is idle or turning off the monitor when not in use.

Message “OUT OF RANGE” is displayed (screen is either blank or shows rough images only)

Image is displayed only roughly (pixels are missing) and OSM warning “OUT OF RANGE” is displayed: Either signal clock or resolution is too high. Choose one of the supported modes.

OSM warning “OUT OF RANGE” is displayed on a blank screen: Signal frequency is out of range. Choose

one of the supported modes.

Image is unstable, unfocused or swimming is apparent

Signal cable should be completely attached to the computer.

Use the OSM Image Adjust controls to focus and adjust display by

increasing or decreasing the fine total. When the display mode is changed, the OSM Image Adjust settings may need to be readjusted.

Check the monitor and your display card with respect to compatibility and recommended signal timings.

If your text is garbled, change the video mode to non-interlace and use 60Hz refresh rate.

LED on monitor is not lit (no green, blue, or amber color can be seen)

• Power Switch should be in the ON position and power cord should be connected.

Picture is not as bright

Make sure the ECO MODE and AUTO BRIGHTNESS functions are turned off.

If the brightness fluctuates, make sure that the AUTO BRIGHTNESS function is turned off.

Display image is not sized properly

Use the OSM Image Adjust controls to increase or decrease the Coarse total.

Check to make sure that a supported mode has been selected on the display card or system being used. (Consult display card or system manual to change graphics mode.)

No Video

If no video is present on the screen, turn the Power button off and on again.

Make certain the computer is not in a power-saving mode (touch the keyboard or mouse)

Self Diagnosis

The LCD display is equipped with the ability to self diagnose abnormalities. When the LCD detects a problem, the LED on the front flashes in a pattern of long and short blinks, depending on the type of problem detected.

If the LED detects a problem, please refer service to qualified personnel.

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NEC LCD1990FXp user manual Troubleshooting, No picture

LCD1990FXp specifications

The NEC LCD1990FXp is a versatile and high-performing LCD monitor that has garnered attention for its exceptional display quality and user-friendly features. This model, part of the NEC MultiSync series, is designed primarily for professional environments, including graphic design, CAD applications, and general office use.

One of the standout features of the NEC LCD1990FXp is its 19-inch screen size, providing ample display real estate for multitasking and detailed work. The monitor boasts a maximum resolution of 1280 x 1024 pixels, ensuring crisp and clear visuals that enhance productivity. With a 16:10 aspect ratio, the screen offers a comfortable viewing experience, allowing users to see more content without sacrificing clarity.

The LCD technology used in the NEC LCD1990FXp is based on an advanced TFT (Thin Film Transistor) structure, which contributes to its impressive color accuracy and wide viewing angles. The monitor typically showcases a brightness level of around 250 cd/m², paired with a contrast ratio of 600:1, enabling vibrant color reproduction and deep blacks. This robust combination of specifications means that users can work on color-sensitive projects with confidence.

Another notable characteristic of the LCD1990FXp is its fast response time, which is typically around 25 milliseconds. This quick response helps reduce motion blur, making it suitable for various applications, including watching videos or gaming, despite being primarily geared toward business and professional uses.

In terms of connectivity, the NEC LCD1990FXp is equipped with multiple options, including VGA and DVI-D ports, allowing for seamless integration with various computer systems. This flexibility ensures that users can easily connect the monitor to both older and newer devices without compatibility concerns.

Additionally, the monitor includes features aimed at ergonomics and usability. It comes equipped with adjustable height, tilt, swivel, and pivot capabilities, allowing users to customize their viewing angles to reduce strain during extended use. The built-in power management system contributes to energy efficiency, aligning with modern sustainable practices.

Overall, the NEC LCD1990FXp is an excellent choice for users seeking a reliable, high-quality display with features that cater to both performance and comfort. Its combination of advanced technology, versatile connectivity, and ergonomic options positions it as a strong contender in the business and professional monitor market. Whether used for detailed graphic work or general productivity tasks, the NEC LCD1990FXp stands out as a solid investment for any workplace.