Optoma Technology GT750E manual Projector stops responding to all controls

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Steady light

No light

Appendices

The projector stops responding to all controls

If possible, turn off the projector, then unplug the power cord and wait at least 60 seconds before reconnecting power.

Check that “Keypad Lock” is not activated by trying to control the projector with the remote control.

Lamp burns out or makes a popping sound

When the lamp reaches its end of life, it will burn out and may make a loud popping sound. If this happens, the projector will not turn on until the lamp module has been replaced. To replace the lamp, follow the procedures in the “Replacing the Lamp” section on pages 44-45.

LED lighting message

Message

ON/STANDBY

Temp-LED

Lamp-LED

LED

 

 

 

 

(Green/Amber)

(Red)

(Red)

Standby State

Amber

 

 

(Input power cord)

 

 

 

 

 

Power on (Warming)

Flashing

 

 

Green

 

 

 

 

 

Lamp lighting

Green

 

 

Power off (Cooling)

Flashing

 

 

Green

 

 

 

 

 

Error (Over Temp.)

Flashing

 

 

Amber

 

 

 

 

 

Error (Fan fail)

Flashing

Flashing

 

Amber

 

 

 

 

Error (Lamp fail)

Flashing

 

 

Amber

 

 

 

 

 

ON/STANDBY LED be ON when OSD appears, be OFF when OSD disappears.

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Contents Table of Contents Usage Notice Safety InformationPrecautions Do not Product Features Eye Safety WarningsPackage Overview IntroductionMain Unit Product OverviewControl Panel Input/Output Connections Remote Control Connect to Computer/Notebook Connecting the ProjectorConnect to Video Sources Powering On the Projector Powering On/Off the ProjectorPowering off the projector Adjusting the Projector’s Height Adjusting the Projected ImageAdjusting Projection Image Size Adjusting the Projector’s FocusWxga User Controls Control Panel & Remote ControlUsing the Remote Control Hdmi On-screen Display Menus How to operateImage Menu TreeOptions Contrast Display ModeBrightness Tint ColorSharpness Gamma BrilliantColorColor Temp Color Space Color SettingsInput Source Format DisplayKeystone ZoomEdge Mask Image Shift3D Sync. Invert 3D Mode3D 2D 3D FormatProjection LanguageProjector ID Menu LocationChange Password Security TimerSecurity User Controls Position PhaseAutomatic FrequencyAudio Input VolumeInternal Speaker MuteInformation Hide ResetSource Lock High AltitudeAuto Power Off min Direct Power OnSleep Timer min Lamp Reminder Brightness ModeLamp Reset Lamp HoursAppendices TroubleshootingImage is unstable or flickering Image is reversed Projector stops responding to all controls On Screen Messages Replacing the lamp Lamp Replacement Procedure  Computer Compatibility Compatibility Modes Video Compatibility Mode Resolution Sync Hz Sync KHzHdmi 1.4a 3D timing  3D input CompatibilityRS232 Pin Assignments RS232 Commands and Protocol Function ListOptoma Data and HT Projectors GT750 RS232 Protocol Function ListREAD/Return Information from projector Appendices Ceiling Mount Installation USA Optoma Global OfficesBenelux BV FCC notice Regulation & Safety NoticesRemarque à l’intention des utilisateurs canadiens

GT750E specifications

The Optoma GT750E is a remarkable short throw projector that combines advanced technology with user-friendly features, making it an ideal choice for home entertainment, gaming, and educational purposes. With its impressive specifications and reliable performance, the GT750E has cemented its place as a popular option for projector enthusiasts looking for convenience without compromising on quality.

One of the standout features of the GT750E is its short throw capability, which enables users to project large images from a very short distance. This makes it suitable for smaller rooms where space is limited. The projector can produce a stunning 100-inch image from just about 3.5 feet away, allowing for a truly immersive viewing experience.

The GT750E boasts a native resolution of 1280x800 pixels, providing clear and detailed visuals. Equipped with a high brightness level of 3,000 lumens, it ensures that images remain vivid even in well-lit environments. This brightness, combined with a contrast ratio of 20,000:1, enhances details and depth, making it perfect for a range of content from movies to video games.

In terms of connectivity, the GT750E is versatile. It includes multiple input options such as HDMI, VGA, and USB, catering to various devices like laptops, gaming consoles, and Blu-ray players. Additionally, the projector supports 3D content, enriching the viewing experience for users, particularly for gaming and immersive home cinema setups.

The color performance of the GT750E is enhanced through its use of DLP (Digital Light Processing) technology, which provides vibrant colors and sharp images. The projector supports a wide color gamut, ensuring that visuals appear lively and accurate.

Another innovative feature is its lamp life, with a lifespan of up to 15,000 hours in Eco mode. This longevity minimizes the need for frequent replacements, making it a cost-effective solution for users.

The GT750E also includes features such as keystone correction and a built-in speaker, offering convenience and flexibility in setup while eliminating the need for external audio sources for casual viewing.

Overall, the Optoma GT750E stands out as a powerful short throw projector that merges cutting-edge technology with practicality, making it an excellent choice for individuals looking to enhance their multimedia experiences at home or in educational settings. Its combination of brightness, resolution, and ease of use ensures that it delivers exceptional performance across various applications.