1. Introduction
This manual provides comprehensive instructions for the setup, operation, and maintenance of your celexon UST High-Contrast Floor-Rising Screen, HomeCinema Plus, 120". This advanced projection screen is designed to deliver exceptional image quality, especially with Ultra Short Throw (UST) projectors, by enhancing contrast and reducing ambient light interference. Please read this manual thoroughly before installation and use to ensure optimal performance and safety.

Figure 1.1: The celexon UST High-Contrast Floor-Rising Screen, HomeCinema Plus, 120", shown fully extended with its remote control.
2. Safety Information
Always adhere to the following safety precautions to prevent damage to the product or personal injury:
- Ensure the screen is placed on a stable, level surface to prevent tipping.
- Do not obstruct the screen's movement path during extension or retraction. Keep hands and objects clear.
- Keep the screen away from direct sunlight, heat sources, and moisture.
- Only use the provided power cable and accessories.
- Do not attempt to disassemble or repair the screen yourself. Refer to qualified service personnel.
- Unplug the screen from the power outlet before cleaning or if it will not be used for an extended period.
3. Package Contents
Verify that all items listed below are included in your package:
- celexon UST High-Contrast Floor-Rising Screen Unit
- Power Cable
- Infrared (IR) Remote Control
- Radio Frequency (RF) Remote Control
- Remote Control Wall Mount Bracket
- Trigger Cable (3.5mm jack)
- Mounting Brackets (L-shaped and flat plates)
- Screws and Wall Anchors
- Allen Key
- Cleaning Brush

Figure 3.1: Overview of all components included in the package.
4. Setup
4.1 Placement
Position the screen unit on a flat, stable surface directly in front of your Ultra Short Throw (UST) projector. Ensure there is sufficient clear space above the unit for the screen to fully extend without obstruction. The screen's base dimensions are approximately 289.3 cm (113.9 inches) in length, 15.2 cm (5.98 inches) in width, and 10.9 cm (4.29 inches) in height.

Figure 4.1: Detailed dimensions of the screen's base unit.
4.2 Power Connection
Locate the power input port on the side of the screen unit. Connect the provided power cable to the unit and then plug it into a standard electrical outlet (AC 220V). The unit features a power indicator light.

Figure 4.2: Power input (AC 220V) and trigger (TRIG) ports on the screen unit.
4.3 Optional: Securing the Unit
For added stability, especially in high-traffic areas, the included mounting brackets can be used to secure the screen base to the floor or a sturdy piece of furniture. Use the provided screws and anchors as appropriate for your mounting surface. Consult a professional if unsure about installation.
5. Operating the Screen
5.1 Using the Remote Controls
Your celexon screen comes with two remote controls: an Infrared (IR) remote and a Radio Frequency (RF) remote. The RF remote offers greater range and does not require direct line-of-sight to the screen's IR receiver.
- Extend Screen: Press the UP arrow button to raise the screen.
- Retract Screen: Press the DOWN arrow button to lower the screen.
- Stop Screen: Press the STOP button to halt the screen at any desired position.
5.2 Using the Trigger Input
The screen unit features a 3.5mm trigger input (labeled "TRIG" in Figure 4.2). This allows the screen to automatically extend or retract in sync with your projector's power state, provided your projector has a compatible 12V trigger output. Connect the provided trigger cable from your projector's 12V trigger output to the screen's TRIG input.

Figure 5.1: The screen in use with a projector, demonstrating its integration into a home cinema setup.
6. Maintenance
6.1 Cleaning the Screen Surface
The high-contrast screen surface is delicate. Use the provided soft cleaning brush or a clean, lint-free microfiber cloth to gently remove dust. For stubborn marks, lightly dampen the cloth with distilled water. Do not use harsh chemicals, abrasive cleaners, or excessive pressure, as this can damage the optical coating.
6.2 Cleaning the Casing
Wipe the screen casing with a soft, dry cloth. If necessary, a slightly damp cloth can be used, followed by immediate drying. Ensure no liquid enters the internal mechanisms.
6.3 Storage
When not in use, retract the screen fully into its casing to protect the surface from dust and damage. If storing for an extended period, unplug the unit and store it in a dry, cool place.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Screen does not extend/retract. | No power; Remote control battery low/dead; Remote not paired; Obstruction. | Check power connection. Replace remote batteries. Ensure line-of-sight for IR remote. Remove any obstructions. |
| Screen stops mid-way. | Obstruction; Motor overheating (rare). | Remove obstruction. Allow motor to cool down for 15-20 minutes before attempting operation again. |
| Remote control not responding. | Battery issue; Remote out of range (for RF); IR receiver blocked (for IR). | Replace batteries. Move closer to the screen. Ensure IR receiver on the screen unit is not blocked. |
| Image appears distorted or uneven. | Projector not aligned; Screen not level. | Adjust projector position and keystone correction. Ensure screen unit is placed on a perfectly level surface. |
8. Specifications
| Feature | Detail |
|---|---|
| Brand | celexon |
| Model Name | HomeCinema Plus, 120" |
| Manufacturer Reference | 1000025599 |
| ASIN | B0BQDBLWT5 |
| Screen Type | UST High-Contrast Floor-Rising |
| Diagonal Screen Size | 120 inches (304.8 cm) |
| Viewable Screen Area (W x H) | 265.6 cm (104.57") x 149.4 cm (58.82") |
| Base Unit Dimensions (L x W x H) | 289.3 cm (113.9") x 15.2 cm (5.98") x 10.9 cm (4.29") |
| Country of Origin | China |
| First Available Date | July 7, 2023 |

Figure 8.1: Viewable screen area dimensions.
9. Warranty and Support
9.1 Warranty Information
Your celexon UST High-Contrast Floor-Rising Screen is covered by a manufacturer's warranty against defects in materials and workmanship. Please refer to the warranty card included in your package or visit the official celexon website for detailed warranty terms and conditions specific to your region.
9.2 Customer Support
Should you encounter any issues or have questions not covered in this manual, please contact celexon customer support. Contact details can typically be found on the celexon website or on the product packaging. When contacting support, please have your product model (HomeCinema Plus, 120") and manufacturer reference number (1000025599) ready.





