VIZIO M421VT Mode D'Emploi

VIZIO M421VT User Manual 

14 

www.VIZIO.com 

 
 
 
1.  ETHERNET—Connect an Ethernet cable to access the Internet. 

Set up the Internet connection using the initial Setup App or the 
Network Menu in the HDTV Settings App. Your HDTV also has 
802.11n wireless, so you can connect your TV to the Internet 
through your wireless home network. See Network Menu on page 
50 for detailed information on setting up your Internet connection.  

2.  COMPONENT (Y/V Pb/Cb Pr/Cr with L/R Audio)—Connect 

Component video devices such as a DVD Player or Set Top Box 
here.  Composite (AV) content or signal can be watched using this 
input. 

3.  RGB PC VIDEO—Connect the video from a computer here. And 

add connect a 1/8” mini plug stereo connector from the computer to 
the PC AUDIO input on the TV if you want the sound to come from 
the HDTV speakers.  

4.  DTV/TV—Connect to an antenna or digital cable source. For digital 

TV stations in your area visit www.antennaweb.org. For Cable and 
Satellite Set Top Boxes, we recommend that you use a HDMI or 
Component cable connection for high definition image quality. 

5.  HDMI 1, 2, 3 and 4—Connect digital video devices such as a DVD 

player or Set-Top Box through this all digital connector. There is an 
additional HDMI connector on the side. 

6.  USB PORTS— These two ports are reserved for future functions. 

Currently, they are being used as service port by authorized 
professional service technicians. 

7.  OPTICAL (SPDIF) Audio Out—Connect the audio from the HDTV 

to an external device equipped with an Optical input, such as a 
Vizio Sound Bar, Home Theater System, external amplifier, or 
stereo system.  

8.  ANALOG Audio Out—Connect the audio from the HDTV to an 

external device, such as a Home Theater System, external amplifier, 
or stereo system by using a stereo Y-adapter from 1/8” stereo plug 
to L/R RCA jacks. Speakers cannot be connected directly here.