A155U - Projector SHARP - Free user manual and instructions
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| Product Type | Video Projector |
| Brand | Sharp |
| Model | A155U |
| Projection Technology | DLP with single 0.55" DMD chip |
| Native Resolution | 1920 x 1080 (Full HD) |
| Brightness | 3200 ANSI lumens |
| Contrast Ratio | 20000:1 (Dynamic) |
| Aspect Ratio | 16:9 native, compatible with 4:3 |
| Lamp Type | 240W UHP lamp |
| Lamp Life | Up to 5000 hours (Normal), 10000 hours (Eco) |
| Projection Lens | F = 2.5 - 2.7, f = 21.9 - 24.0 mm, manual zoom and focus |
| Throw Ratio | 1.5 - 1.7:1 |
| Keystone Correction | +/- 40° vertical, +/- 40° horizontal |
| Built-in Speaker | 10W mono |
| Inputs | 2x HDMI, 1x VGA (D-Sub 15-pin), 1x Composite Video, 1x S-Video, 1x USB Type-A, 1x Audio 3.5mm |
| Outputs | 1x VGA (Monitor out), 1x Audio 3.5mm |
| Network | RJ45 LAN for control and presentation |
| Dimensions (W x D x H) | 315 x 245 x 95 mm (without feet) |
| Weight | 3.2 kg |
| Power Consumption | 280W (Normal), 210W (Eco), Standby < 0.5W |
| Power Supply | AC 100-240V, 50/60Hz |
| Noise Level | 32 dB (Normal), 28 dB (Eco) |
| Maintenance | Air filter cleanable, lamp user-replaceable |
| Safety Features | Overheat protection, auto power-off after no signal, key lock |
| Spare Parts Availability | Replacement lamp module (part no. AN-P240LP), filter (part no. AN-F215X) |
Frequently Asked Questions - A155U SHARP
How do I replace the lamp on the Sharp A155U projector?
First, turn off the projector and unplug it. Wait for the lamp to cool completely. Then, using a screwdriver, remove the lamp cover located on the side. Unscrew the two screws holding the lamp module, carefully pull the lamp out, and insert the new one. Replace the screws and the cover, then reset the lamp timer via the menu under Maintenance > Reset Lamp Hours.
What is the recommended projection distance for a 100-inch screen?
To achieve a 100-inch diagonal 16:9 image, place the projector at a distance of 3.3 to 3.8 meters from the screen, based on the throw ratio of 1.5 - 1.7. Use the zoom adjustment to fine-tune the image size.
How can I connect my laptop to the Sharp A155U?
Use an HDMI cable if your laptop has an HDMI output, or a VGA cable for older models. Connect the cable to the corresponding input on the projector, then press the Source button on the remote control to select HDMI or VGA. If no image appears, set your laptop to extend or duplicate the display via the display settings.
The image is flickering or unstable. What should I do?
Check the signal source and cable connection first. Try a different cable or port. Make sure the refresh rate on your computer is set to 60Hz. Also verify that the resolution matches the projector's native resolution (1920x1080) for the sharpest image. If the problem persists, reset the projector to factory defaults.
Can I mount the A155U projector on a ceiling?
Yes, the A155U supports ceiling mounting. Use a standard projector mount compatible with the 3 mounting points on the bottom. After installation, go to Settings > Projection > Ceiling Mount and select Front Ceiling to flip the image vertically and horizontally.
What is the best picture mode for watching movies?
For a cinematic experience, select Cinema or Movie mode from the Picture menu. This adjusts color temperature, brightness, and contrast to closely match the D65 standard used in film production. Turn off any Dynamic Contrast or Eco Mode to avoid flickering in dark scenes.
How often should I clean the air filter?
Clean the air filter every 500 hours of use or after every 3 months, whichever comes first. Open the filter cover on the side, remove the filter, and clean it with a vacuum cleaner. If the filter is very dirty, you can rinse it with water and let it dry completely before reinstalling. Never operate the projector without the filter installed.
Why does my Sharp A155U shut off automatically?
Automatic shutdown is usually due to overheating or power interruptions. Check that air vents and the filter are clean and not blocked. Ensure the ambient temperature is below 35°C (95°F). Also, the lamp may have reached its end of life; replace it if the lamp indicator is illuminated. The projector also has an auto off feature that activates after a period of inactivity without input.
Can I connect the projector to a network for remote control?
Yes, the A155U has an RJ45 LAN port. Connect it to your network router with an Ethernet cable. Then, use the projector's network settings to assign an IP address. You can then control the projector via a web browser or using the Sharp projector management software, enabling remote power on/off, status monitoring, and firmware updates.
What is the correct way to reset the lamp hour counter?
After replacing the lamp, reset the counter to ensure accurate maintenance tracking. Go to the Installation or Maintenance menu, select Lamp Life, and choose Reset Lamp Timer. Confirm the action. The counter will zero out, and the lamp warning message will disappear.
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USER MANUAL A155U SHARP
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Product information
Brand : SHARP
Model : A155U
Category : Projector