Buy Optoma HD28i Full HD DLP Projector
Optoma HD28i – 1080p 4000 lumen home cinema projector
- Ideal for daytime sports viewing: Powerful 4000 lumens
- Amazing colour: Bring the match to life with bright vivid images
- Easy connectivity: HDMI and USB power
- All-in-one solution: Built-in audio for ultimate convenience
The Optoma HD28i is a home theater projector that features a 1080p resolution and a brightness of 3,600 lumens. It is designed to provide a high-quality, immersive movie and gaming experience in a home setting.
The projector uses a DLP (digital light processing) technology to produce clear and vibrant images with high contrast ratios. It has a 1.1x zoom and can project a screen size of up to 303 inches, making it suitable for large rooms.
The HD28i also has built-in speakers with 10W of power, eliminating the need for external speakers. It supports 3D content and has a 144Hz refresh rate, making it suitable for gaming.
In terms of connectivity, the projector features two HDMI inputs, a VGA input, a USB port, and a 3.5mm audio output, making it easy to connect to various devices. It also has a built-in media player for playing content from a USB drive.
The Optoma HD28i is a great option for anyone looking for a high-quality home theater projector that is suitable for both movies and gaming.
Optoma HD28i Specifications:
- Display Technology: DLP (Digital Light Processing)
- Native Resolution: 1920 x 1080 (1080p)
- Brightness: 3,600 lumens
- Contrast Ratio: 50,000:1
- Lamp Life: Up to 15,000 hours (Eco mode)
- Throw Ratio: 1.47 – 1.62:1
- Projection Distance: 1.5 – 10m
- Screen Size: 28 – 303 inches
- Keystone Correction: ±40° Vertical
- Speaker: 10W
- 3D Support: Yes
- Refresh Rate: 144Hz
- Input/Output: 2 x HDMI 1.4a, VGA-In, Audio-In, Audio-Out, USB 2.0 (for power supply and firmware updates), 12V Trigger
- Noise Level: 26dB (Eco mode)
- Dimensions (W x H x D): 315 x 224 x 114mm
- Weight: 2.87kg
Optoma HD28i Pros & Cons:
Pros:
- Full HD Resolution: 1080p for sharp images.
- Bright Performance: 3,600 lumens for various lighting conditions.
- Vibrant Colors: DLP technology for rich color reproduction.
- Low Input Lag: Great for gaming with smooth performance.
- Portable Design: Lightweight and easy to transport.
- Versatile Connectivity: HDMI, USB, and VGA ports available.
- Long Lamp Life: Up to 15,000 hours in Eco mode.
- Flexible Installation: Supports various screen sizes.
Cons:
- Limited Zoom: Requires specific placement for optimal size.
- Fan Noise: Can be distracting in quiet settings.
- Performance in Dark Rooms: Not as effective in low-light conditions.
- No 4K Support: Lacks native 4K resolution.
- Basic Speakers: Audio quality may require external speakers.
Lamp of Optoma HD28i & How to replace:
The Optoma HD28i projector uses a PHILIPS 190W lamp, designed to deliver bright, high-quality images. The lamp is rated for up to 15,000 hours of use in Eco mode, providing a long lifespan under optimal conditions. However, like all projector lamps, it will eventually need to be replaced to maintain the projector’s performance.
Signs That the Lamp Needs Replacement
- Dimming Image: Noticeable drop in brightness.
- Color Issues: Colors appear washed out or distorted.
- Lamp Warning Indicator: The projector may display a warning message.
- Flickering: The image flickers or fails to display correctly.
How to Replace the Lamp in the Optoma HD28i
Tools Needed:
- Phillips screwdriver
- Replacement lamp (make sure it’s compatible)
Steps to Replace the Lamp:
- Turn Off and Unplug: Ensure the projector is powered off and unplugged from the electrical outlet. Allow it to cool down completely (at least 30 minutes) to avoid burns.
- Remove the Lamp Cover: Use a Phillips screwdriver to remove the screws securing the lamp cover on the bottom of the projector. Carefully lift off the cover.
- Unscrew the Lamp: Locate the lamp housing. Remove the screws securing the lamp assembly in place.
- Disconnect the Lamp: Carefully pull the lamp assembly out of the projector. It may have a connector attached; gently disconnect it if necessary.
- Insert the New Lamp: Take the new lamp, handle it by the base (avoid touching the glass), and connect it to the projector. Secure it with the screws you removed earlier.
- Replace the Lamp Cover: Put the lamp cover back on and secure it with the screws.
- Reset the Lamp Timer: Power on the projector. Go to the settings menu and locate the lamp reset option to reset the lamp timer. This step is crucial for tracking the lamp usage accurately.
- Test the Projector: Once the lamp is replaced and the timer reset, test the projector to ensure the new lamp is functioning correctly.
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