Troubleshooting

Check the following matters before requesting servicing.

Problem

 

Check

Reference

 

Page

 

 

 

Power does not turn on

•

Is the power cord plugged into a power outlet?

E-24

 

•

Is the lamp cover properly mounted?

E-75

 

•

Is the projector’s temperature high? To protect the projector, the power can-

E-70

 

 

not be turned on when the projector’s temperature is abnormally high.

 

 

•

Has the lamp reached the end of its service life?

E-70

 

 

 

 

No image is produced

•

Is a connected input selected?

E-50

 

•

Is the cable properly connected to the input terminal?

E-18 –23

 

•

When a computer is connected, are signals being output from the computer?

E-20

 

•

Does the signal being input have a frequency usable with this projector?

E-77

 

•

Are the brightness and contrast adjusted to the minimum?

E-43

 

•

Is the STATUS indicator lit a steady red or flashing red?

E-70

 

•

When the component signal of the DVD player is connected with the DVI

E-50

 

 

connector and the image is not output, is [Input Settings] of the DVI connec-

 

 

 

tor properly selected?

 

 

•

For a analog RGB input, has the picture been properly adjusted?

E-43, 44

 

 

 

 

Image is distorted

•

Is the projector properly installed?

E-27

 

•

For trapezoidal (keystone) distortion, perform keystone adjustment.

E-33, 48

 

 

 

 

Image is out of focus

•

Is the lens properly focused?

E-28

 

•

Are the screen and projector installed at the proper distance?

E-14 –17

 

•

Does the projection distance exceed the focusing range?

E-14 –17

 

•

Is there condensation on the lens, etc.?

–

 

 

If the projector is moved from a cool storage area to a warm place and the

 

 

 

power is turned on, condensation may form on the lens or internal optical

 

 

 

parts. If this happens, wait until the condensation has evaporated before

 

 

 

using the projector.

 

 

 

 

 

Image is not in proper posi-

•

For a computer input, are the horizontal and vertical positions properly ad-

E-44

tion and is not displayed

 

justed?

 

properly

•

Does the input signal have a compatible resolution and frequency? Check

E-77

 

 

the computer’s resolution.

 

 

 

 

 

Video image is crushed

•

If the image is crushed in the horizontal or vertical direction or if it is not

E-30

 

 

displayed over the entire screen, select a different aspect ratio.

 

 

 

 

 

Colors of the overall image

•

When a component signal is being input, is the color space setting proper?

E-46

are strange

•

For a composite input, is the hue properly adjusted?

E-43

 

 

 

 

Characters flicker or colors

•

From the menu, select “Picture” and adjust the clock frequency and phase.

E-43, 44

are offset for analog RGB

 

 

 

inputs

 

 

 

 

 

 

 

Cannot select the menu

•

Other than [Settings] and [Information], selection will not be possible unless

–

name

 

a signal is being input to the projector and the image/picture is projected.

 

 

 

 

 

The item name “Start Logo

•

Selection is not possible unless a signal is being input.

–

Capture” of the sub menu

 

 

 

cannot be selected

 

 

 

 

 

 

 

Remote control unit does

•

Are the remote control unit’s batteries worn? Replace with new batteries.

E-12

not operate

•

Is there an obstacle between the remote control unit and the projector’s

E-12

 

 

remote control signal sensor?

 

 

•

Is the remote control unit outside of range?

E-12

 

•

Are you pointing the remote control unit’s transmitter towards the projector’s

E-12

 

 

remote control signal sensor?

 

 

 

 

 

STATUS indicator is lit red

•

See “When an indicator is lit or flashing”.

E-70

or flashing red

 

 

 

 

 

 

 

“Viewer System Error” is

•

The viewer system is being restarted because of an internal processing er-

–

displayed

 

ror.

 

Applicable Projector: U4-136

Repeated display of this message could indicate a product fault. Please con-

tact your store of purchase.

 

 

 

E-71

Page 71 Page 73
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PLUS Vision U4-136, U4-111, U4-112 user manual Troubleshooting, Check the following matters before requesting servicing
Page 71 Page 73

U4-112, U4-111, U4-136 specifications

PLUS Vision has consistently pushed the boundaries of visual presentation technology, and their U4 series is a testament to their commitment to innovation and quality. Among the standout models in this series are the U4-111, U4-136, and U4-112. Each of these models brings a unique set of features and capabilities that cater to the evolving demands of modern visual communication.

The PLUS Vision U4-111 is designed for versatility and efficiency. Equipped with a high-resolution display, it ensures sharp and clear visuals, making it ideal for both educational and corporate environments. The U4-111 boasts an intuitive interface, allowing users to easily navigate through various functions, such as screen sharing and collaboration tools. Its lightweight and portable design mean it can be seamlessly transported between locations while maintaining durability.

Meanwhile, the U4-136 takes interactivity to the next level. This model is enhanced with advanced touch technology, allowing multiple users to engage simultaneously. This feature is particularly beneficial in collaborative settings, where brainstorming and group discussions are key. The U4-136 also includes connectivity options that support various devices, making it a strong choice for any tech-savvy environment. With its vibrant color reproduction and adjustable display settings, it enhances the overall viewing experience.

The U4-112, on the other hand, focuses on integration and smart features. This model supports wireless connectivity, enabling users to connect effortlessly to laptops, tablets, and smartphones. The U4-112 also includes built-in software for annotation and document sharing, streamlining presentations and meetings. Its sleek design makes it aesthetically pleasing while ensuring functionality remains at the forefront.

All three models in the PLUS Vision U4 series share common characteristics that highlight their quality and reliability. They feature robust construction, ensuring longevity even in high-use environments. The U4 series also prioritizes energy efficiency, reducing power consumption without compromising performance.

In conclusion, the PLUS Vision U4-111, U4-136, and U4-112 exemplify the brand's commitment to delivering high-quality visual solutions. With their diverse features and innovative technologies, these models cater to various user needs, making them ideal choices for educational institutions, corporate environments, and collaborative spaces. Each model brings forth unique capabilities designed to enhance learning and communication in today's fast-paced world.
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