9H.J4N77.13L - Vidéo-projecteur BENQ - Free user manual and instructions
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| Product Type | Video Projector |
| Model | 9H.J4N77.13L |
| Brand | BenQ |
| Dimensions (W x D x H) | 312 x 222 x 108 mm |
| Weight | 2.6 kg |
| Power Consumption | 270 W (normal mode) |
| Brightness | 3600 ANSI Lumens |
| Native Resolution | 1920 x 1080 (Full HD) |
| Contrast Ratio | 10000:1 (typical) |
| Lamp Life | Up to 10,000 hours (SmartEco mode) |
| Lens Type | Manual zoom / focus |
| Zoom Ratio | 1.1x |
| Keystone Correction | Vertical ±30 degrees |
| Connectivity | HDMI (2), VGA, USB (Type A/mini), Audio Out |
| Built-in Speaker | 2W mono |
| Noise Level | 31 dB (normal mode) |
| Projection Screen Size | 30 to 300 inches |
| Aspect Ratio | 16:9 (native) |
| Lamp Type | Lamp (UHP) |
| Color | White |
| Included Accessories | Power cord, remote control, batteries, user manual |
| Warranty | 2 years (parts and labor) |
| Maintenance | Clean air filter every 100 hours; replace lamp when indicated |
| Safety | Overheating protection, auto shut-off |
| Repairability | Replaceable lamp and filter; authorized service centers |
Frequently Asked Questions - 9H.J4N77.13L BENQ
How do I connect my laptop to the projector?
Use an HDMI cable for the best quality. If your laptop only has VGA, connect the VGA cable to the projector and your laptop, then select the correct input source from the projector menu.
Why is the projector overheating?
Check if the air filter is clogged with dust. Clean it by gently vacuuming or using compressed air. Ensure the projector has proper ventilation around it, and avoid blocking the exhaust vent.
How do I replace the lamp?
Turn off the projector and unplug it. Allow it to cool for at least 45 minutes. Open the lamp cover, remove the old lamp by unscrewing it, and insert the new lamp (BenQ certified). Secure the screws and close the cover. Reset the lamp timer in the menu.
What is the recommended projection distance for a 100-inch screen?
For a 100-inch screen, position the projector at approximately 3.0 to 3.3 meters away from the screen, depending on the zoom setting. Refer to the user manual for precise distances.
Can I use the projector without a screen?
Yes, you can project onto a white wall or any flat, light-colored surface. However, for best contrast and brightness, use a dedicated projection screen.
How do I clean the lens?
Power off the projector and let it cool. Use a soft, lint-free cloth (such as microfiber) to gently wipe the lens. If needed, dampen the cloth with lens cleaning solution, but never apply liquid directly to the lens.
What does the ECO mode do?
ECO mode reduces lamp brightness to save energy and extend lamp life. It also lowers fan noise. You can enable it from the projector's menu settings.
Why is the image keystone distorted?
If the projector is not placed perpendicular to the screen, the image will be trapezoidal. Use the keystone correction feature (via menu or remote) to adjust vertical distortion. For best results, position the projector level with the center of the screen.
How do I connect external speakers?
Connect external speakers to the Audio Out port (3.5mm jack) on the projector. You may need to adjust audio settings in the menu to route sound to the external output.
What is the life of the lamp?
The lamp lasts up to 10,000 hours in SmartEco mode, 6,000 in normal mode, and 7,000 in ECO mode. When the lamp nears end of life, a warning message will appear. Replace it promptly to avoid damage.
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