5. Maintenance and Troubleshooting

Table 5-1provides some general guidelines for troubleshooting problems you may encounter with the Q-750i. If the suggested solutions fail to resolve the problem or if you encounter an issue not described here, please contact Runco Technical Support.

Table 5-1. Troubleshooting Chart

Symptom

 

Possible Cause(s)

 

Solution

 

 

 

 

The projector does not turn

•

The Q-750i is not plugged

• Ensure that the Q-750i is

on.

 

in or the AC outlet is not

 

plugged in and that the AC

 

 

active.

 

outlet is active.

 

 

 

 

 

The remote control does not

•

The batteries have run out.

•

Replace the batteries.

work correctly.

 

 

 

 

 

 

 

 

The projector is on and OSD

•

Incorrect source selection.

• Select the correct source.

menus appear, but there is no

•

Source component is not

• Turn on the source.

video image on-screen.

 

turned on.

 

 

 

•

Source component is

•

Check cable connection

 

 

connected incorrectly or

 

from source component to

 

 

not at all.

 

projector.

 

 

 

 

 

5.1

Troubleshooting Tips

A projected image from a DVD is split or otherwise scrambled.

Image is blurred.

Image is too bright and/or lacks definition in the bright areas of the image.

• DVD player is connected

• Turn off progressive scan

to the Component input

on the DVD player.

and set to progressive

 

scan mode.

 

• The lens is not correctly

• Adjust the focus.

focused.

 

• Contrast is set too high.

• Lower the contrast setting.

Image geometry is incorrect.

• Incorrect aspect ratio

• Select the aspect ratio that

 

selection.

best matches the source

 

 

image and screen size

 

 

(refer to Table 4-2).

 

 

 

Image appears “washed out” and/or dark areas appear too bright.

Colors in the image are swapped; for example, reds appear blue or vice versa.

•Brightness is set too high.

•The Red/Pr, Green/Y or Blue/Pb outputs from the source are connected to the wrong inputs on the Q-750i.

•Lower the brightness setting.

•Ensure that the source outputs are connected to the correct Q-750i input.

Note: You can obtain more detailed information about the cause of the error condition using RS-232 commands. Refer to RS-232 Error Codes on page 83 for more information.

Q-750i Series Installation/Operation Manual

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Runco Q-750I operation manual Maintenance and Troubleshooting, Troubleshooting Tips, Troubleshooting Chart
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Q-750I specifications

The Runco Q-750I is a state-of-the-art home theater projector that has earned a reputation for delivering exceptional image quality and advanced features. Designed to cater to the needs of cinephiles and home theater enthusiasts alike, the Q-750I incorporates a range of technologies that elevate the viewing experience to new heights.

One of the standout characteristics of the Runco Q-750I is its use of cutting-edge DLP technology. The projector employs a BrilliantColor™ technology that enhances the color accuracy and brightness, delivering vivid and realistic images. With a native resolution of 1080p, it ensures that even the smallest details in high-definition content are rendered crisply and clearly.

In addition to its impressive resolution, the Q-750I also features an advanced optical system. The projector's lens system, which includes multiple lens elements, ensures minimal distortion and superior image sharpness across the entire screen. This attention to detail means that viewers can enjoy an immersive cinematic experience without compromising on image quality.

The Q-750I also stands out with its extensive installation flexibility. With a motorized lens shift feature, users can easily adjust the projector's position to fit various screen sizes and setups. This aspect, combined with a robust zoom capability, allows for seamless integration into any home theater design.

Another significant feature of the Runco Q-750I is its support for 3D content. With the increasing popularity of 3D films and gaming, the Q-750I can project stunning three-dimensional visuals, providing an engaging experience that makes viewers feel part of the action. It is compatible with the latest 3D formats, ensuring that users can enjoy their favorite content without any compromise.

Moreover, the projector is equipped with Runco's proprietary Vivix™ video processing technology. This advanced processing system enhances the quality of both standard and high-definition content, optimizing color, contrast, and motion handling. The result is a smoother and more lifelike viewing experience, particularly in dynamic scenes.

On the connectivity front, the Q-750I is well-equipped with multiple input options, including HDMI, Component, and RS-232 for integration with control systems. This ensures compatibility with a wide range of devices, making it a versatile choice for any home theater setup.

In summary, the Runco Q-750I is a feature-packed projector that combines high-end technologies with user-friendly design. Its impressive image quality, installation versatility, and support for 3D content make it an ideal choice for anyone looking to create a truly immersive home theater experience. As technology continues to evolve, the Q-750I stands out as a premium option for discerning viewers who demand the best in home entertainment.
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