1. Introduction
This manual provides essential instructions for the safe and efficient operation of your Mitsubishi EX240U XGA DLP 2500LM Projector. The EX240U offers high-quality performance with features such as HDMI input, Crestron RoomView support, and 3D-ready capabilities. It is designed for various applications, including higher education and corporate environments, delivering clear images with a native resolution of 1024 x 768 and a maximum resolution of 1600 x 1200.
2. Safety Information
Please read all safety instructions before operating the projector to prevent injury or damage to the unit.
- Do not block ventilation openings. Ensure adequate space around the projector for proper airflow.
- Do not look directly into the projector lens when the lamp is on, as the bright light can cause eye damage.
- Avoid placing the projector in unstable locations or on surfaces that are prone to vibration.
- Disconnect the power cord from the outlet before cleaning or when the unit is not in use for an extended period.
- Refer all servicing to qualified service personnel.
3. Product Overview
3.1 Front View
This image displays the front of the Mitsubishi EX240U projector. Key components visible include the projection lens, zoom and focus rings, and the control panel with indicator lights (POWER, TEMP, LAMP). The model number 'EX240U' is clearly marked on the front panel.
3.2 Rear Panel and Connections
The rear panel of the EX240U projector features various input and output ports for connectivity. These include two COMPUTER (VGA) inputs, a MONITOR OUT port, an HDMI input for digital connections, a SERIAL port, and a LAN port for network control. Audio input and output jacks, S-VIDEO, and VIDEO inputs are also present, along with the AC-INLET for power connection.
4. Setup
4.1 Placement
Position the projector on a stable, flat surface or mount it securely. Ensure the projector is within the optimal projection distance for your screen size. Maintain adequate ventilation space around the unit.
4.2 Power Connection
- Connect the power cord to the AC-INLET on the rear of the projector.
- Plug the other end of the power cord into a grounded electrical outlet.
4.3 Connecting Input Sources
- HDMI: For digital video and audio, connect an HDMI cable from your source device (e.g., laptop, Blu-ray player) to the HDMI input on the projector.
- VGA (COMPUTER-1/COMPUTER-2): For analog video, connect a VGA cable from your computer to either the COMPUTER-1 or COMPUTER-2 input.
- Video/S-Video: For standard definition video sources, use the VIDEO or S-VIDEO input.
- Audio: Connect audio cables to the AUDIO IN jacks corresponding to your selected video input, or use the HDMI connection for integrated audio.
5. Operation
5.1 Powering On/Off
- To Power On: Press the Power button on the projector's control panel or remote control. The POWER indicator light will illuminate.
- To Power Off: Press the Power button twice. The projector will enter a cooling down cycle before completely shutting off. Do not unplug the projector during the cooling cycle.
5.2 Adjusting Image
- Focus: Rotate the focus ring on the lens until the image appears sharp and clear.
- Zoom: Rotate the zoom ring on the lens to adjust the size of the projected image.
5.3 Input Source Selection
Use the 'Input' or 'Source' button on the projector's control panel or remote control to cycle through available input sources (HDMI, COMPUTER-1, COMPUTER-2, Video, S-Video).
5.4 3D Functionality
The EX240U is 3D-ready. To utilize 3D functionality, the 3D video content must be in field sequential format. A high-end graphic card and special electronic shutter glasses are required for 3D viewing.
5.5 Audio Output
The projector includes an onboard speaker. For enhanced audio, connect external speakers to the AUDIO OUT port on the rear panel.
6. Maintenance
6.1 Cleaning the Projector
- Use a soft, lint-free cloth to gently wipe the exterior of the projector.
- For the lens, use a specialized lens cleaning cloth and solution. Avoid abrasive materials.
- Regularly check and clean the ventilation vents to prevent dust buildup, which can affect performance and lead to blurriness over time.
6.2 Lamp Replacement
The projector lamp has a limited lifespan. When the LAMP indicator light illuminates or the image brightness significantly decreases, the lamp may need replacement. Refer to the full service manual for detailed lamp replacement procedures or contact qualified service personnel.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No image projected | Power not connected; Input source not selected; Lens cap on | Check power connection; Select correct input source; Remove lens cap |
| Image is blurry | Focus not adjusted; Projector too far/close | Adjust focus ring; Adjust projector distance or zoom |
| No audio | Volume muted; Audio cable not connected; Incorrect audio input selected | Unmute volume; Connect audio cable correctly; Select correct audio input |
| Projector overheats | Blocked ventilation; Dirty filter (if applicable) | Ensure clear vents; Clean vents/filter |
8. Specifications
- Model: EX240U
- Brightness: 2500 ANSI Lumens
- Native Resolution: 1024 x 768 (XGA)
- Maximum Resolution: 1600 x 1200
- Display Technology: DLP
- Connectivity: HDMI, VGA (x2), Serial, LAN, Video, S-Video, Audio In/Out
- Special Features: 3D-Ready, Built-in Speakers, Crestron RoomView support
- Product Dimensions: 9.02 x 11.1 x 3.7 inches
- Item Weight: 5.29 pounds
9. Warranty and Support
9.1 Warranty Information
The Mitsubishi EX240U Projector is provided with a 1-year replacement warranty. Please retain your proof of purchase for warranty claims.
9.2 Customer Support
For further assistance, technical support, or service inquiries, please refer to the official Mitsubishi Projectors website or contact their customer service department. Contact information can typically be found on the manufacturer's website or in the original product packaging.
