The VIZIO M55Q7-H1 is a 55-inch SmartCast TV with 4K UHD resolution (3840 x 2160), Full Array LED backlight, and Dynamic Motion Rate 120. It supports Dolby Audio and Dolby Vision, HDMI eARC, and features like Apple AirPlay 2 and Chromecast built-in for streaming.
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. Ensure proper grounding of power outlet. Use shielded interface cables to comply with emission limits. Maintain minimum 20cm distance between radiator and body for FCC/ISED compliance. Do not dispose of batteries in fire; replace with recommended type. Avoid modifications to prevent voiding compliance and causing interference.
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 (4, incl. eARC), USB, Optical Audio Out, Ethernet, Composite, Coaxial, built-in Wi-Fi.
| Feature | Description |
|---|---|
| Screen Size | 55" Class (54.5" Diagonal) |
| Resolution | 4K UHD 3840x2160 |
| Refresh Rate | Dynamic Motion Rate 120 |
| Smart Platform | SmartCast with Netflix, Disney+, AirPlay 2, Chromecast |
| Audio | Dolby Audio, Dolby Vision, 10W x 2 Speakers |
| Connectivity | 4 HDMI (eARC), 1 USB, Wi-Fi, Ethernet |
| Other | WatchFree, ENERGY STAR, Talk Back |
Unpack and inspect contents. Place on stable surface or wall-mount using UL-listed bracket (M6 screws, 300x200mm VESA pattern, max weight 35.94 lbs without stand). Connect power to grounded 120V outlet. Attach devices via HDMI, composite, coaxial, or USB.
Electrical: 120V, 60Hz; consumption 114.6W 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, Composite, Coaxial, Ethernet.
Remote: Power, Input, Volume +/-, Mute, Navigation, OK/Play/Pause, Home, WatchFree, Info, CC (long press for Accessibility).
Picture: Modes (Vivid, Bright, Calibrated, Calibrated Dark, Game, Sports); settings like Backlight, Brightness, Contrast, Color, Tint, Sharpness, Color Temperature (Warm/Cool/Normal); Advanced: Black Detail, Super Resolution. Audio: TV Speakers (On/Off), Surround Sound, Volume Leveling, Balance, Lip Sync, Digital Out (PCM/Auto), eARC. Network: Connect wireless (enter SSID/password); manual IP/DNS; test connection. Channels: Scan; skip; audio language; parental controls with PIN. System: Language; time; input names; CEC; timers (sleep, auto off); updates. Admin: Reboot; info; factory reset.
Launches by pressing Home button or selecting SmartCast input. Streams apps (Netflix, Hulu), mirrors devices, rearranges apps, works with Google Assistant. Discover movies/TV across apps; quick access to popular apps. Supports Apple AirPlay 2 and Chromecast built-in for device streaming. Use VIZIO SmartCast Mobile App for device control, including inputs and network.
Tip: Download VIZIO SmartCast Mobile App via vizio.com/smartcastapp on connected device.
Free streaming service accessed via SmartCast Home. No specific setup steps detailed; integrated with app row for content.
CAUTION! Content subject to availability; no recording.
Prepare USB: FAT32 format, supported files (.mp3, .jpg, etc.); no external drives.
WARNING! Turn TV Off before removing USB to avoid damage.
Menu > Accessibility: Captions: Analog/digital; customize style (text size, color, opacity). Video Description: Narrated action if available. Talk Back: Speaks changes (English only). Speech Rate: Slow/Normal/Fast. Zoom Mode: Enlarges screen section 200%. CC button toggles; available for tuner, composite, streaming (app-dependent). Visit vizio.com/accessibility for details. Contact: Email [email protected], Phone 1-877-698-4746.
Unplug before cleaning; use soft cloth; avoid harsh chemicals. Ensure proper battery disposal per state regulations; visit vizio.com/environment for recycling.
WARNING! Do not spray liquids on TV; keep ventilation clear; avoid dust/humidity.
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 |
|---|---|---|
| Colors don’t look right | Settings, cables. | Adjust Color/Tint in Picture menu; select Calibrated mode; check cables. |
| No sound | Muted, settings. | Press Volume Up; check mute; adjust audio settings; verify connections; set eARC to Off if needed. |
| Picture distorted | Interference. | Move TV away from appliances/lights; secure cables. |
| Dark pixels | Inherent to HD TVs. | Not defective; normal for technology. |
| Remote not working | Low batteries, improper aim. | Press one button at a time; point at TV; replace batteries. |
| Noise/static on screen | Antenna signal. | Check antenna signal; ensure secure connection and optimal position. |
| Image size changes on input switch | Aspect Ratio. | Adjust Picture Aspect; TV remembers modes per input. |
| Missing channels | No scan. | Run Find Channels via MENU or app. |
| No 4K/HDR | Resolution check. | Press INFO to check resolution; icons show Dolby Vision/HDR10/HLG. |
Reset: Hold INPUT 12s or Menu > Admin & Privacy > Factory Reset (erases settings).
Service: 1-844-254-8087; support.vizio.com