The Hisense 55U8N is a 55-inch Mini-LED ULED 4K Google TV featuring QLED Quantum Dot color, up to 3000 nits peak brightness, 2000+ local dimming zones, 144Hz VRR panel, Dolby Vision IQ, Google Assistant, Wi-Fi 6E, and gaming optimizations like AMD FreeSync Premium Pro. Supports ATSC 3.0 tuner, Dolby Atmos audio with 50W 2.1.2 system. Powered by 100-240V AC, 50/60Hz. Below are key sections for safety, features, installation, operation, and troubleshooting.
WARNING! Read all instructions before use; household use only. Disconnect AC power cord before installing stand or wall mount. The LED display is fragile; avoid scratching or damaging with hard objects or pressure. After installation, ensure TV is steady on table or firmly attached to wall before removing protective film. Follow wall mount instructions; incorrect mounting may cause fall, injury, or damage. Use spacers and fixing screws of specified length (9.5–11.5 mm for 55"). Do not hang on slanted wall; keep parallel to wall. For ceiling or slanted installs, risk of fall. Complies with FCC Part 15; may cause interference—reorient antenna, relocate, or consult technician if so. Unauthorized modifications void authority to operate. Maintain 20 cm distance from radiator. Supervise children; do not insert objects into slots. Unplug during storms or when unused. Use on stable surface with ventilation.
Key components: 55-inch Mini-LED panel, voice remote with Google Assistant, tabletop stand, AC power cord, multiple HDMI/eARC ports, USB ports, built-in Wi-Fi 6E antenna, ATSC 3.0 tuner.
| Feature | Description |
|---|---|
| Display | 55" 4K UHD (3840x2160) Mini-LED ULED, 144Hz, 3000 nits peak, 2000+ dimming zones, QLED Quantum Dot |
| Smart OS | Google TV with apps (Netflix, YouTube, Disney+), Google Assistant, Screenless Mode |
| Audio | 50W 2.1.2 ch, Dolby Atmos, DTS Virtual:X |
| Connectivity | 4 HDMI (2x 2.1), eARC, 2 USB 2.0, Ethernet, Wi-Fi 6E, Bluetooth 5.0 |
| Tuner | ATSC 3.0, NTSC, Clear QAM |
| Gaming | VRR 48-144Hz, AMD FreeSync Premium Pro, ALLM, Dolby Vision Gaming |
| Other | Filmmaker Mode, IMAX Enhanced, Anti-Glare, VESA 300x300 |
Disconnect power before assembly. Place TV face down on soft surface. For stand: Insert bases into slots, secure with screws (choose holes A or B for 55"). For wall mount: Remove stand, add spacers, use VESA 300x300 screws 9.5-11.5mm. Connect power to 100-240V outlet. Connect antenna to RF for tuner, HDMI for devices, Ethernet/Wi-Fi for network. Initial setup: Power on, follow wizard for language, network, Google account.
Electrical: 100-240V AC, 50/60Hz; grounded outlet, no extensions.
| Specification | Details |
|---|---|
| Display | 55" 4K UHD (3840x2160), VA Mini-LED, 178°/178° viewing, 144Hz refresh, 480 MR interpolation |
| Brightness | 3000 nits peak |
| Dimming Zones | 2000+ |
| Audio Power | 50W (2.1.2 ch) |
| Power Consumption | Max: 260W; Standby: <0.5W |
| Dimensions (WxHxD) | With stand: 1225 x 770 x 307 mm; Without: 1225 x 710 x 79 mm; Weight: 18.5 kg with stand |
| VESA | 300x300 mm |
| Connectivity | HDMI 2.1 x4, USB x2, Ethernet, Wi-Fi 6E, Bluetooth 5.0 |
Remote: Power, Volume/Channel +/-, Settings, Input, Home, Google Assistant mic, Navigation, OK, Back, Numeric, Mute, Quick Access. TV buttons: Power/Vol/Ch/Input. Settings Menu: Picture (Brightness, Contrast, Color, Backlight, Motion), Sound (EQ, Balance, Dolby Atmos), Channels (Auto Scan), Network (Wi-Fi/Ethernet, Google Home), System (Language, Time, Accessibility: TalkBack, Video Description), Apps, Gaming (VRR, ALLM).
Power: Press remote/TV button. Channels: +/- or numeric. Volume: +/- or mute. Input: Press Input, select HDMI/TV/USB. Picture modes: Vivid, Standard, Cinema, Game, Filmmaker (Menu > Picture). Sound: Auto, Movie, Music (Menu > Sound). Scan channels: Menu > Channels > Auto Scan.
CAUTION! Ensure stable connections; avoid blocking vents.
Google TV: Press Home for apps, recommendations. Google Assistant: Say "Hey Google" for control (setup internet/account first). Screenless Mode: Voice commands with screen off (Settings > System > Advanced > Screenless Mode). Accessibility: TTS, TalkBack, Video Description. Apps: Netflix, YouTube, Prime; download more. Mirroring: Via Google Home app. Gaming Bar: Access quick settings.
| Supported HDR | Description |
|---|---|
| Dolby Vision IQ | Dynamic HDR with ambient light |
| HDR10+ | Dynamic metadata |
| HLG | Broadcast HDR |
CAUTION! Requires stable internet; update software regularly.
Unplug before cleaning. Wipe screen gently with microfiber cloth dampened with water or mild, non-abrasive cleaner; dry immediately. Avoid sprays, solvents, or excessive pressure. Clean frame and vents with soft dry cloth. Dust regularly to prevent buildup. For wall mount, check screws periodically.
WARNING! Do not use harsh chemicals; unplug during cleaning or storms.
| Issue | Solution |
|---|---|
| TV won't turn on | Check power cord/outlet; unplug/replug; try TV button. |
| No picture/sound | Check input/source; cables; volume/mute; restart TV. |
| Remote unresponsive | Replace batteries; point directly; reset remote. |
| Wi-Fi issues | Restart router; re-enter password; check signal. |
| App crashes | Restart TV; update app; clear cache (Settings > Apps). |
| Interference | Reorient antenna; increase separation; connect to different outlet. |
| No channels | Run Auto Scan (Channels menu); check antenna. |
Service: Contact Hisense at 1-888-935-8880 or www.hisense-usa.com/support