The VIZIO M55Q6-L4 is a 55-inch Quantum Smart TV with UHD resolution (3840x2160), Full Array LED backlight, Dynamic Motion Rate 120 with Clear Action 180, AMD FreeSync support, VRR (Variable Refresh Rate), WiFi 6 connectivity, and compatibility with Dolby Vision, Dolby Audio, DTS Virtual:X, and DTS:X for enhanced audio and video. It features SmartCast platform for streaming apps like Netflix and Disney+, WatchFree+ free channels, Apple AirPlay and Chromecast built-in, 3 HDMI ports (with eARC), 1 USB port, and voice control. Powered by 120V AC, 60Hz. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.
WARNING! To reduce the risk of electric shock or fire: Switch off power before connecting components; do not expose to rain or moisture; do not block ventilation openings; operate on a grounded 120V outlet; unplug before servicing. Avoid using near water, heat sources, or with damaged cords. Unplug during lightning storms or extended non-use. Do not overload outlets or use extension cords. Ground antenna systems properly. Maintain at least 3 feet from heat sources; avoid smoke or moisture. Secure TV to prevent tip-over; use two people for installation. Loud sounds can damage hearing; keep away from children; do not allow hanging on TV.
CAUTION! Clean with dry cloth only; unplug before cleaning; wait for condensation to clear after temperature changes. Insert batteries correctly; dispose properly. Protect power cord from damage; do not defeat polarized plug. Refer all servicing to qualified personnel. Ground antenna/cable system per NEC articles 810 and 820 for protection against surges.
Key components: Full Array LED panel, SmartCast interface, Voice Remote, HDMI ports (3, incl. eARC), USB, Optical Audio Out, Coaxial, Ethernet, built-in Wi-Fi 6.
| Feature | Description |
|---|---|
| Screen Size | 55" Class (54.5" Diagonal) |
| Resolution | UHD 3840x2160 |
| Refresh Rate | DMR120 / Clear Action 180 |
| Smart Platform | SmartCast with Netflix, Disney+, AirPlay, Chromecast |
| Audio | Dolby Audio, DTS Virtual:X, DTS:X |
| Connectivity | 3 HDMI (eARC), 1 USB, Wi-Fi 6 |
| Other | WatchFree+, Dolby Vision, AMD FreeSync, VRR |
Unpack and inspect contents. Place on stable surface or wall-mount using UL-listed bracket (M6 screws, 400x200mm VESA pattern, max weight 25.09 lbs without stand). Connect power to grounded 120V outlet. Attach devices via HDMI, coaxial, or USB.
Electrical: 120V, 60Hz; consumption 150W typical, <0.5W standby.
WARNING! Ensure secure attachment to prevent fall/injury.
Power on TV; follow on-screen prompts. Have network password ready; connect Ethernet if used.
CAUTION! Ensure stable network; use two people for handling.
Access via MENU button on remote. Front Panel: POWER/INPUT button (press to turn on/change input; hold 3s off, 12s reset). Rear: HDMI, USB, Optical, Coaxial, Ethernet.
Remote: Power, Input, Volume +/-, Mute, Navigation, OK/Play/Pause, Home, Voice (hold for commands), WatchFree+, CC (long press for Accessibility).
Picture: Modes (Calibrated, Vivid, Game); settings like Backlight, Brightness, Contrast, Color, Tint, Sharpness, Color Temperature (Normal/Cool/Computer). Advanced Picture: Black Detail, Noise Reduction, Game Low Latency, VRR. Audio: TV Speakers (On/Off), Surround Sound, Volume Leveling, Balance, Lip Sync, Digital/Analog Audio Out, eARC/ARC. Network: Connect wireless (enter SSID/password); manual setup for IP, DNS; test connection. Channels: Scan for channels; skip unwanted; analog/digital audio language; parental controls with PIN. System: Menu language; time zone; TV/input names; CEC; power mode (Eco/Quick Start); timers (sleep, auto off, blank screen); updates; reset. Admin & Privacy: Reboot; system info; factory reset; viewing data on/off.
Launch via Home button or Input menu. Stream apps (Netflix, etc.), access WatchFree+; rearrange apps; mirror via AirPlay/Chromecast; voice control with Google Assistant/Siri/Alexa.
Tip: Use SmartCast Mobile App for remote control, text entry, content discovery.
Free live TV channels (news, movies, sports); hundreds of channels; on-screen guide by genre; no subscriptions.
CAUTION! Content subject to availability; no recording.
Prepare USB: FAT32 format, supported files (.mp3, .jpg, .mp4, etc.); no external drives.
WARNING! Turn TV Off before removing USB to avoid damage.
Refer to vizio.com/accessibility for captions, Talk Back, Zoom Mode, and other features. Customize via Menu > System > Accessibility; email [email protected] or call 1-877-698-4746.
Unplug before cleaning; use dry cloth. Avoid liquids, objects on top, blocked vents.
WARNING! Do not spray liquids on TV; keep ventilation clear.
FCC Class B: Complies with Part 15; may cause interference (reorient antenna, increase separation, etc.). No modifications without approval. Use shielded cables. Indoor 5GHz restriction; 20cm min distance from body. Canada: ICES-003 Class B; RSS exempt. HDMI/Dolby/DTS trademarks. Warranty: 1 year non-commercial (defects in materials/workmanship); 90 days commercial. Service via support.vizio.com; pre-authorization required.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Remote Not Responding | Low batteries, improper aim. | Insert batteries correctly; replace with fresh ones; point directly at TV. |
| No Signal | Wrong input, loose cable. | Check connections; power on device; select input; scan channels for antenna. |
| No Power | Outlet/cord issue. | Secure power cord; test outlet; press power button. |
| No Image | Connections, settings. | Secure connections; adjust picture settings; change input. |
| No Sound | Muted, settings. | Unmute/increase volume; check audio; use eARC. |
| Colors Wrong | Settings, cables. | Adjust Color/Tint; Calibrated mode; check cables. |
| Poor Image Quality | Settings, source. | Adjust modes; use HD/HDMI; improve antenna. |
| Distorted Picture | Interference. | Move from appliances; check cables. |
| Not Full Screen | Aspect Ratio. | Adjust aspect ratio for 480i. |
| Missing Channels | No scan. | Scan again via menu or app. |
Reset: Hold INPUT 12s or Menu > Admin & Privacy > Factory Reset (erases settings).
Service: 1-844-254-8087; support.vizio.com