MX854UST - Video projector BENQ - Free user manual and instructions
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| Product Type | Video projector |
| Brand | BenQ |
| Model | MX854UST |
| Display Technology | DLP single-chip |
| Native Resolution | XGA (1024 x 768 pixels) |
| Brightness | 3000 ANSI lumens |
| Contrast Ratio | 13000:1 |
| Throw Ratio | 0.34 (ultra-short throw) |
| Projection Size | 60 to 120 inches |
| Lamp Type | 240 W UHP lamp |
| Lamp Life | Normal: 4000 h, Economic: 6000 h, SmartEco: 10000 h |
| Keystone Correction | Vertical ±30 degrees |
| Built-in Speaker | 10 W mono |
| Video Inputs | 2 x HDMI, 2 x VGA, component, composite |
| Other Connections | RS-232, USB, audio in/out |
| Power Consumption | 280 W typical, < 0.5 W standby |
| Dimensions (W x D x H) | 370 x 114 x 303 mm |
| Weight | 4.5 kg |
| Noise Level | 36 dB normal, 30 dB economic |
| Maintenance | Replaceable lamp and air filter |
| Cleaning | Clean air intake and lens with soft cloth |
| Safety Features | Kensington lock, auto shutdown, thermal protection |
| Repair and Spare Parts | Lamp, remote control, air filter available from authorized service |
Frequently Asked Questions - MX854UST BENQ
What is the recommended projection distance for a 100-inch image?
For the ultra-short throw MX854UST, a 100-inch image requires a projection distance of about 0.75 m from the screen. Place the projector close to the wall or screen and use the vertical keystone to align the image.
How do I replace the lamp?
Turn off the projector and unplug it. Let it cool for 30 minutes. Open the lamp compartment on the side, remove the two screws, and gently pull out the old lamp. Insert the new BenQ 5J.JFP05.001 lamp and tighten the screws. Reset the lamp timer via the OSD menu.
How should I clean the projector lens and air filter?
For the lens, use a soft, dry microfiber cloth and wipe gently in a circular motion. For the air filter, remove it from the side, rinse with water if clogged, let it dry completely, and reinstall. Clean the filter every 1000 hours for optimal cooling.
How can I connect a laptop to the MX854UST?
Use an HDMI cable from your laptop's HDMI port to one of the projector's HDMI inputs. Alternatively, use VGA with a 3.5mm audio cable. Press Source on the remote and select the matching input.
The image is blurry, what can I do?
First adjust the focus ring on the lens. Make sure the projector is at the correct ultra-short throw distance from the screen. Also check that the resolution of your source is set to 1024 x 768. Clean the lens if dust is present.
Can I use a standard projector screen or do I need a special one?
A standard matte white or grey screen works well for an ultra-short throw. Ambient light-rejecting (ALR) screens further reduce glare, but are optional. Ensure the screen is flat and stretched to avoid bright spots.
How do I enable 3D playback?
Connect a 3D Blu-ray player via HDMI and press 3D on the remote. Set the 3D mode in the OSD to D-Sub/HDMI or Auto. Wear active DLP-Link 3D glasses. Ensure the input signal is 120Hz or frame-sequential.
Does the projector have wifi and can it mirror my smartphone?
The standard MX854UST does not have built-in Wi-Fi, but you can add an HDMI wireless dongle or use a Google Chromecast in the HDMI port to mirror your smartphone screen. Some models include a USB port for a Wi-Fi adapter (check your manual).
What are the maintenance tasks to keep it running?
Regularly clean the air filter, replace the lamp when brightness drops below 50% of nominal, and check the ventilation is unobstructed. Update firmware via USB if available. Perform a dust cleaning internally only via authorized service.
The projector does not turn on, what should I check?
Confirm the power cord is firmly connected and the outlet provides power. Check the power indicator; if blinking red, it may overheated or a lamp fault. Wait for the lamp to cool and replace if needed. Verify the main power switch on the back is ON.
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USER MANUAL MX854UST BENQ
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Product information
Brand : BENQ
Model : MX854UST
Category : Video projector