Troubleshooting

The following offers solutions to some of the common problems you may encounter. We suggest that you consult this chart before contacting your dealer.

PROBLEMS

CAUSE

POSSIBLE SOLUTIONS

 

 

 

The power is off.

• The air inlet slots, outlet slots or air filter is

• Remove the object.

 

clogged with dust or some objects.

 

 

POWER indicator does not light up.

 

 

• Power cord is unplugged from the outlet.

• Plug the power cord into the outlet.

 

• Power cord is disconnected from the projector.

• Insert the power cord into the projector.

 

• The main switch is turned off.

• Turn the main switch on.

 

• The lamp lid is open.

• Close the lamp lid.

 

POWER indicator blinks red.

 

 

• The projector has been turned on again too soon

• Wait for the lighting sequence.

 

after having been turned off.

 

 

• When the power switch was turned off while

• Turn the power switch on and off several times.

 

the fan was running, during or after lamp

 

 

operation.

 

 

• The room temperature is too high.

• Refer to "Indicators" on page 25.

 

(Does the LAMP indicator show an unusual

 

 

condition?)

 

 

• Lamp is no longer working.

• Replace the lamp with a new one.

 

POWER indicator blinks between red and green.

 

 

• The filter cover is not closed.

• Close the cover correctly.

 

• When the LAMP indicator or the TEMP

• Contact your dealer.

 

indicator is either on or blinking, the main unit

 

 

requires repairs.

 

 

 

 

No picture appears

• Lens is covered by lens cap.

• Take the lens cap off.

on the screen.

• When the LAMP indicator or the TEMP

• Replace the lamp with a new one.

 

indicator is either on or blinking, the main unit

 

 

requires repairs.

 

 

• The equipment connected to this projector is not

• Turn on the connected equipment.

 

turned on.

 

 

• Hookup is not made correctly with other equipment.

• Confirm the hookup.

 

• The input source is not selected correctly.

• Select the correct source according to the equip-

 

 

ment connected to this projector.

The image is

• The air inlet slots, outlet slots or air filter is

• Remove the object and turn off the main power

turned off.

clogged with dust or some objects.

switch. After about 10 minutes, Turn the pro-

 

(In this case, the TEMP indicator does not light up.)

jector on.

The image is

• The projector is not at a right angle to the screen.

• Adjust the angle of the projector to make a right

distorted.

 

angle to the screen. See page 12.

The image is dark.

• Brightness, tint and color are not adjusted correctly.

• Adjust brightness, tint and color correctly.

The image is

• The projecting distance is beyond the focused area.

• Adjust the projecting distance. See page 9.

blurred.

• Lens is dirty.

• Clean lens.

 

• Screen size exceeds screen size specifications.

Reduce screen size to within 40" to 300".

 

• Brightness and contrast are not adjusted correctly.

• Adjust brightness, contrast.

 

• FINE adjustment is not made correctly.

• Make FINE adjustment.

 

• Tracking is not adjusted.

• Adjust tracking.

 

• The projector is not at a right angle to the screen.

• Adjust the angle of the projector to make a

 

 

right angle to the screen. See page 12.

The image remains

• When you see the stationary image for a long time, it may remain on the screen if you change the

blurred.

image. It is not a breakdown. The blurred image will disappear in a few minutes.

Red, blue or green dots are

• It is normal.

 

viewed on the text of image.

 

 

 

 

 

The image is dis-

• The cable for connection with other equipment

• Plug the connecting cable securely into the

torted on the screen

is not plugged securely into the terminal.

terminal. See pages 10-11.

and noise is heard.

• The projector is installed too close to other

• Install the projector far away from other equipment.

 

equipment.

 

 

 

 

No sound is heard.

• Volume is not turned up.

• Turn up the volume.

 

• Connection to other equipment is not made correctly.

• Check connections. See pages 10-11.

Nothing is displayed on

• The PC monitor is not turned on.

• Turn on the monitor.

the PC monitor.

 

 

 

Warm air comes out of

• This is typical of the LCD projector.

 

the exhaust vents.

 

 

Adjustments cannot be

• The operation is incorrectly made due to noise or

• Press the reset button on the Terminal board.

made.

interference.

See page 15.

 

 

 

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Mitsubishi Electronics S290U user manual Troubleshooting, Problems Cause Possible Solutions

S290U specifications

The Mitsubishi Electronics S290U is a standout in the realm of high-performance projectors, making wave in both business and educational settings. Renowned for its exceptional brightness and versatile functionality, the S290U is engineered to deliver remarkable image quality and reliability. With a native resolution of 1920 x 1200 (WUXGA), it ensures sharp and detailed visuals, making it ideal for presentations, educational seminars, and collaborative workspaces.

One of the main features of the S290U is its impressive brightness level, reaching up to 5,500 ANSI lumens. This capability allows the projector to perform well in a variety of lighting conditions, be it in a brightly lit conference room or a dimly lit classroom. Coupled with a high contrast ratio, it provides vibrant colors and deep blacks, making images pop and enhancing the overall viewing experience.

The S290U employs advanced lamp technology for extended durability and lower maintenance costs. It utilizes a hybrid laser and LED light source that not only extends lamp life but also increases energy efficiency. This ensures reduced operational costs and minimal downtime for maintenance, making it a cost-effective solution over time.

Connectivity is another strong suit of the S290U, featuring multiple input options, including HDMI, VGA, and USB. This versatility allows seamless integration with various devices such as laptops, tablets, and even some smartphones. The inclusion of wireless connectivity options enhances this further, enabling users to project content directly from their devices without the hassle of cables.

User convenience is prioritized in the design of the S290U as it includes features like automatic keystone correction and a flexible lens shift capability. These technologies facilitate easy setup and adjustment, ensuring that users can achieve the perfect image alignment without fuss.

The projector also has built-in sound capabilities, featuring high-quality speakers that eliminate the need for external audio equipment in many scenarios. Furthermore, its lightweight and portable design enable hassle-free transportation from one location to another, making it perfect for on-the-go professionals.

In summary, the Mitsubishi Electronics S290U combines advanced imaging technologies with ease of use and flexibility. With its high brightness, long-lasting light source, diverse connectivity options, and user-friendly features, it stands out as an excellent choice for anyone looking to enhance their presentation capabilities. Whether for business meetings, educational purposes, or general multimedia applications, the S290U delivers impressive results.