BH3801D - Screen BENQ - Free user manual and instructions
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| Product type | Video projector |
| Brand | BenQ |
| Model | BH3801D |
| Display technology | DLP |
| Resolution | 1920 x 1080 pixels (Full HD) |
| Brightness | 3800 ANSI lumens |
| Contrast ratio | 10000:1 |
| Aspect ratio | 16:9 |
| Lamp life | Up to 4000 hours (normal mode), 10000 hours (Eco mode) |
| Optical zoom | 1.2x manual zoom |
| Keystone correction | +/-40 degrees vertical |
| Inputs | 2x HDMI, 1x VGA, 1x Composite, 1x Component |
| Audio output | 3.5 mm mini jack |
| Built-in speaker | 10W mono |
| Dimensions (W x H x D) | 330 x 120 x 240 mm |
| Weight | 3.3 kg |
| Power supply | AC 100-240 V, 50/60 Hz |
| Power consumption | 330 W (normal), <0.5 W (standby) |
| Main functions | Full HD projection, 3D support, flexible connectivity, long lamp life |
| Maintenance and cleaning | Replace lamp and clean air filter as recommended; wipe lens with a soft, dry cloth |
| Safety | Do not look directly into the lens; keep ventilation openings clear; use a grounded power outlet |
| Spare parts and repairability | Lamp and air filter are user-replaceable; other repairs require a certified technician |
| General information | Home theater projector designed for immersive entertainment |
Frequently Asked Questions - BH3801D BENQ
How do I connect my BenQ BH3801D to a laptop?
Use an HDMI cable to connect the laptop's HDMI output to one of the projector's HDMI inputs. Alternatively, you can connect via VGA if your laptop supports it. Select the corresponding input source on the projector using the Source button.
What is the ideal projection distance for a 100-inch screen?
The projection distance depends on the zoom setting. Based on the throw ratio of 1.47–1.78, a 100-inch diagonal image requires a distance of approximately 3.2 to 3.9 meters (10.5 to 12.8 feet).
How can I replace the lamp on the BH3801D?
Turn off the projector and unplug it. Wait for the lamp to cool completely. Open the lamp compartment cover, loosen the retaining screws, and carefully pull out the old lamp. Insert the new lamp securely, tighten the screws, and replace the cover. Reset the lamp timer in the on-screen menu after replacement. Refer to the manual for detailed steps.
How do I clean the air filter?
Turn off and unplug the projector. Locate the air filter on the side or bottom. Remove the filter cover, take out the filter, and gently wash it with water (if washable) or use a vacuum cleaner. Allow the filter to dry completely before reinstalling. Clean the air filter every 500 hours of use.
Why won't my projector turn on?
Check if the power cord is properly connected to a working outlet. Verify that the power LED is on. If the projector has a standby mode, press the Power button twice. The projector may also be in protection mode due to overheating or a lamp error. Allow it to cool down and try again.
Does the BH3801D support 3D content?
Yes, the BenQ BH3801D supports 3D projection via DLP Link technology. You will need 3D glasses compatible with DLP Link and a 3D source device. Activate 3D mode in the display settings.
How do I adjust keystone correction?
Press the Keystone button on the remote control or navigate to the Display Settings menu. Use the arrow keys to adjust the vertical keystone from -40 to +40 degrees to square the image when the projector is tilted.
Can I use a universal remote control with this projector?
The projector uses IR remote signals. A universal remote can be programmed to control basic functions if you have the correct code. You can also use the RJ45 RS232 port for advanced control in professional installations.
What are the mounting options for ceiling installation?
The BH3801D has four threaded mounting holes compatible with standard projector mounts. Use an approved ceiling mount and ensure it supports the weight (3.3 kg). Invert the projector via the Projector Position setting in the menu when mounted upside down.
How should I clean the projection lens?
Use a soft, dry microfiber cloth to gently wipe the lens from the center outward. If dust persists, use a lens cleaning kit with a non-abrasive solution. Never touch the lens with your fingers and avoid using liquid spray directly on the lens.
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USER MANUAL BH3801D BENQ
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Product information
Brand : BENQ
Model : BH3801D
Category : Screen