Maintenance, Cleaning the Lens | ViewSonic VS11990, VS11986, VS11949

Maintenance

The projector needs proper maintenance. You should keep the lens clean as dust, dirt or spots will project on the screen and diminish image quality. If any other parts need replacing, contact your dealer or qualified service personnel. When cleaning any part of the projector, always switch off and unplug the projector first.

Warning:

Never open any of the covers on the projector. Dangerous electrical voltages inside the projector can cause severe injury. Do not attempt to service this product yourself. Refer all servicing to qualified service personnel.

Cleaning the Lens

Gently wipe the lens with lens cleaning paper. Do not touch the lens with your hands.

Cleaning the Projector Housing

Gently wipe with a soft cloth. If dirt and stains are not easily removed, use a soft cloth damped with water, or water and neutral detergent, and wipe dry with a soft, dry cloth.

Cleaning the Air Filter

The air filter, which is located at the bottom of the projector, should be cleaned after every 100 hours of use. If it is not cleaned periodically, it can become clogged with dust and prevent the projector from being ventilated properly. This can cause over heating and damage the projector.

To clean the air filter:

1.Switch the projector off and unplug the AC

power cord from the wall socket.

2. Remove the air filter cover as the illustration shown.

3. Clean the air filter.

To clean the filter, you are advised to use a small vacuum cleaner designed for computers and other office equipment.

If the dirt is difficult to remove or if the filter is torn, replace it.

4.Replace the filter.

5.Attach the air filter cover.

6.Plug the power back into the projector.

Turn off the projector and remove the AC power cord from the power outlet before beginning maintenance work.

Make sure the lens is cool before cleaning.

Do not use detergents or chemicals other than those noted above. Do not use benzene or thinners.

Do not use chemical sprays.

Use a soft cloth or lens paper only.

ViewSonic

PJ557DC/PJ559DC/PJ560DC

VS11949, VS11986, VS11990 specifications

ViewSonic is a renowned brand that has made significant strides in the realm of projection technology, offering a diverse range of projectors catering to various needs and applications. Among their impressive lineup, the models VS11986, PJD6230, VS11990, PJD6220-3D, and VS11949 stand out due to their features and technological innovations.

The ViewSonic VS11986 is designed for users seeking versatility and connectivity. This compact projector boasts a native resolution of 1080p, delivering crisp and detailed images. It employs advanced DLP technology that ensures vibrant colors and high contrast ratios, making it suitable for presentations in well-lit rooms. The VS11986 offers multiple connectivity options, including HDMI and VGA, allowing for easy connection with laptops, gaming consoles, and other media devices.

The PJD6230 is engineered with a powerful lamp that provides up to 3,200 ANSI lumens of brightness, making it ideal for classrooms and conference rooms. This projector incorporates SuperColor technology, which enhances color accuracy and brightness across a variety of viewing environments. It features a 2000:1 contrast ratio, ensuring deep blacks and rich colors for all types of media. Moreover, the PJD6230 supports a range of resolutions up to 1080p, offering versatility for different content types.

On the other hand, the ViewSonic VS11990 is designed with user convenience in mind. It features a built-in speaker, eliminating the need for external audio devices. With a native resolution of 800 x 600, this model is suitable for basic presentations and casual viewing. The VS11990 also boasts multiple input options, including USB, which enables easy connections to a variety of devices.

The PJD6220-3D is a standout in the realm of 3D projection. It utilizes DLP Link technology, allowing users to enjoy immersive 3D experiences in both educational and entertainment settings. This projector offers a brightness rating of 3,300 ANSI lumens and a contrast ratio of 12000:1, ensuring great visual performance in various lighting conditions. Additionally, it supports multiple 3D formats, making it versatile for different applications.

Lastly, the ViewSonic VS11949 is tailored for portability without compromising performance. With its lightweight design and compact build, it is perfect for users on-the-go. It features a robust brightness of 3,000 ANSI lumens and a 20,000:1 contrast ratio, ensuring brilliant image quality both indoors and outdoors. Moreover, it is equipped with a range of connectivity options, including HDMI and VGA, catering to multimedia presentations and more.

In summary, ViewSonic projectors like the VS11986, PJD6230, VS11990, PJD6220-3D, and VS11949 exemplify the company’s commitment to innovation and quality. These models integrate advanced technologies, user-friendly features, and high-performance specifications, making them suitable for education, business, and entertainment purposes alike.