The LG UBK90 is a 4K Ultra HD Blu-ray player supporting HDR10, Dolby Vision, and Dolby Atmos audio. It features streaming capabilities via webOS, built-in Wi-Fi, USB playback, HDMI output, Ethernet port, optical audio output, and compatibility with various disc formats including 4K UHD Blu-ray, standard Blu-ray, DVD, and CD. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.
Key components: 4K UHD Blu-ray player with HDR support, Remote Control, HDMI OUT port, USB port, Ethernet port, Optical audio output, Power connector.
| Feature | Description |
|---|---|
| HDMI OUT | For connection to TV or AV receiver (supports 4K/HDR) |
| USB port | For playback of media files from USB storage devices |
| Ethernet port | For wired network connection |
| Optical audio output | For digital audio connection to sound systems |
| AC power connector | For power connection |
| Built-in Wi-Fi | For wireless network connectivity |
| OPEN/CLOSE | Ejects disc from tray |
| POWER | Turns player on/off |
| HOME | Accesses webOS smart platform |
| NETFLIX/YOUTUBE | Direct access buttons for streaming services |
Unpack and inspect contents. Place on stable, well-ventilated surface.
WARNING! Ensure proper ventilation; do not block vents. Use certified high-speed HDMI cable for 4K/HDR content.
Power on player; follow on-screen setup wizard.
CAUTION! Keep player away from heat sources and moisture.
Access menu via HOME button or SETTINGS. Front Panel: POWER, OPEN/CLOSE, USB port, Display window.
Remote: POWER, Numeric buttons, OPEN/CLOSE, HOME, SETTINGS, NAVIGATION arrows, VOLUME, MUTE, dedicated app buttons.
Picture: Resolution, HDR, Deep Color, HDMI ULTRA HD Deep Color. Audio: Digital Audio Output (Bitstream/PCM), DRC, Downmix, Dolby Atmos. Network: Wi-Fi setup, IP settings, software update. General: Language, Quick Start, HDMI-CEC (SIMPLINK), parental controls (default password 0000).
TV: HDMI OUT to TV HDMI input. Audio: Optical to sound system. Network: Ethernet or Wi-Fi.
Tip: For best audio, connect HDMI directly to AV receiver if it supports 4K/HDR passthrough.
Supports 4K UHD Blu-ray, Blu-ray, DVD, CD.
WARNING! Do not touch disc surface; handle by edges. Do not use damaged discs.
Access streaming apps via HOME button. Install apps from LG Content Store. Requires internet connection.
Note: Streaming quality depends on internet speed. 4K streaming requires minimum 25 Mbps.
Unplug before cleaning. Use soft, dry cloth for exterior. For disc lens, use approved cleaning disc only.
CAUTION! Do not use liquids, chemicals, or compressed air. Avoid static-prone materials.
FCC Part 15: Class B digital device; complies with interference limits. Copyright © LG Electronics Inc. Dolby, Dolby Vision, Dolby Atmos, and the double-D symbol are trademarks of Dolby Laboratories. DTS, DTS:X, and the DTS logo are registered trademarks of DTS, Inc. For support, visit www.lg.com or contact LG Customer Service at 1-800-243-0000.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| No picture | HDMI connection/TV input | Check HDMI cable; ensure TV is on correct input; try different HDMI port. |
| No sound | Audio settings/connections | Check audio output settings; ensure receiver is on; verify optical/HDMI connections. |
| Disc not recognized | Disc format/damage | Ensure disc is compatible format; clean disc; check for scratches. |
| Network connection fails | Wi-Fi signal/credentials | Move closer to router; re-enter password; restart router. |
| Apps not loading | Internet/server issue | Check internet connection; restart player; update app. |
| Remote not working | Batteries/obstructions | Replace batteries; point directly at player; remove obstacles. |
Reset: Settings > General > Reset to Initial Settings if needed.
Service: 1-800-243-0000; www.lg.com