AOPEN HD LED Projector QH15s/L21/CD21/U7P2402 Series User's Guide

Important Safety Information

WARNING: To prevent electric shock, please do not open the device case. Internal components of the device are not user-serviceable. Please contact professional maintenance staff for repairs.

Notice: Although there is an ENCLOSED PROJECTION BARE ENGINE in the projector, avoid obstructing the air inlet with any objects during use. There is no dust filter on the vents. Still, it is necessary to avoid obstructing the air inlet, as this will trigger the projector's LCD panel and COB protection mechanism due to poor ventilation.

Important safety announcements

• Don't install equipment in a poorly ventilated area. An illustration depicts a projector with heat waves emanating from it, enclosed within a box that has a prohibition symbol (red circle with a slash) over it.
• Don't install equipment in hot and humid areas. An illustration depicts a projector in a steamy or humid environment with a prohibition symbol.
• Don't block the vent (intake or exhaust). An illustration shows a hand attempting to block a projector's air vent, with a prohibition symbol.
• Don't install equipment in dusty or smoky areas. An illustration depicts a projector in a dusty or smoky environment with a prohibition symbol.

Parts and Functions

Projector Ports: The projector features ports for Speaker, Headphones, PC connection, USB Disk, and TF/Micro SD card.

Important notice: Audio outlet with Microphone function headset/speaker may not work properly.

Remote Control Functions

The remote control is powered by two AAA batteries (not included).

Connect Equipment and Apparatus

Direction of signal flow

The projector can receive signals from a DVD/VCD Media Player, PC, or USB Disk. Audio output is available for Speakers and Headphones.

Projector installation

The projector can be installed in a horizontal placement orientation.

Projection distance reference

An illustration shows a projector emitting a light beam onto a screen displaying 'ABCD'.

Installation and Adjustment

Installation Orientations

• Lens facing up: The projector can be oriented with the lens facing upwards.
• Speaker facing up: The projector can be oriented with the speaker facing upwards.
• Focus ring facing up: The projector can be oriented with the focus ring facing upwards.

Manual Focus Adjustment

To adjust the focus, rotate the focus ring on the projector lens until the projected image (represented as 'ABCD' becoming clear 'ABCD') is sharp.

Keystone Correction

Four-point keystone correction

Users can select the best proportion for the roundness of the center circle in the keystone correction interface to adjust the image shape. The projector supports automatic vertical keystone correction upon startup, with manual adjustment options available.

Steps for manual adjustment:

1. Select “Projection Image Settings” and then “Horizon and Vector Keystone” by pressing “OK”.
2. Adjust each corner separately until the image fits the desired shape.

Connect to the wireless network

To connect to Wi-Fi:

1. Turn on Wi-Fi by navigating to “Wifi Settings” and pressing “OK”.
2. Select the desired network and press “OK” to confirm.

Settings and Configuration

Bluetooth settings

To connect Bluetooth devices:

1. Click “Bluetooth Settings” and press “OK”, then click “Add accessory”.
2. Turn on the Bluetooth switch, search for the desired device (e.g., Bluetooth speakers), and connect.

Language selection

Select the language that best suits your personal preference from the available options.

Date and Time setting

Select the preferred date and time format based on your personal preference.

Advanced Settings

Projection mode settings

Select the appropriate projection mode based on your requirements. Four modes are available: Front, Rear, Front/Upside Down, and Rear/Upside Down.

Application settings

Download apps from the Menu Search. Type the app name and search. Click on “Application Settings” to view all downloaded apps and select the desired app.

Input Source Selection

Press the input button [Input Icon] on the remote control to select the input source. Options include HDMI or USB. If USB is selected, a file manager app will appear, allowing you to choose a USB device or an SD card.

Screen Mirroring Instructions

Ensure the projector is connected to the same Wi-Fi network as your mobile phone, tablet, or laptop.

Android system:

1. Launch Miracast on the projector and wait for the connection prompt.
2. Select the projector device from the screen mirroring system list to start screen mirroring.

iOS system:

1. Launch ApowerMirror on the projector and wait for the connection prompt.
2. Select the projector device from the screen mirroring system list to start screen mirroring.

Connection Notes: Check if the ApowerMirror app is installed on your device. Ensure devices are on the same network. Enter the PIN code displayed on the projector on your phone if prompted.

Common Issues and Solutions

Reminder

• The projector is primarily for watching native or online video, not as a mobile phone or computer.
• If the remote control does not operate third-party apps, use a USB mouse.
• When downloading third-party video apps, ensure you download the TV version, not the mobile version.
• This machine does not support Dolby encoded audio and video files.
• If not used for a long time, cover the lens to prevent dust.
• Do not look directly into the projector's lens when the lamp is on, as the bright light can be harmful to eyes.

Disposal Instructions

The symbol on the product or packaging indicates it must not be disposed of with household waste. It is your responsibility to bring used devices to a collection point for recycling electrical and electronic equipment. This helps conserve natural resources and protects human health and the environment. For more information, contact your local city office, household waste disposal service, or the retailer.

Disposal Symbol Description: A symbol depicting a crossed-out waste bin with a recycling symbol.

Cleaning Methods

Before cleaning, ensure the power socket is unplugged. Do not use pesticides or volatile chemicals on the projector or lens. Avoid prolonged contact with rubber or vinyl products, which may damage or peel off layers.

Cleaning the projector:

1. Use a soft and dry cotton cloth to wipe the projector surface.
2. Dampen a soft cotton cloth with a diluted neutral cleaner, gently wipe the projector surface, and dry with a dry cotton cloth.
3. Do not use water, benzene, or other solvents.
4. Do not scratch the projector body with fingernails or hard objects.

Cleaning the lens:

1. Blow off dust from the lens surface and wipe stains with a soft cloth.
2. Use a professional dryer or lens cleaning paper specifically for cameras and glasses.

REMARKS: Do not use ordinary tissue to clean the lens, as it contains impurities that can scratch the lens.

Cleaning the outlet dust filter:

Turn off the power and unplug the cord before cleaning the outlet dust filter of vents every three months. This prevents poor ventilation from triggering the projector's LCD panel and COB protection mechanism.

Projector Specifications

Attention: If any parts are missing or the product is received broken in the package, please contact AOPEN. A replacement will be sent free of charge.