Vizio M421VT Support Question
Vizio M421VT Support Question
Find answers below for this question about Vizio M421VT.Need a Vizio M421VT manual? We have 2 online manuals for this item!
Question posted by karich on November 19th, 2016
Tv Works For About 15 Minutes On Any Input Then Blacks Out On All But 'comp' Inp
Vizio model m421vt. TV works for about 15 minutes on any input then blacks out on all but "comp" input. Unplugged power cord and held on button for 12 seconds. Powers back on for another short period and then repeats. Any suggestions? What board may need to be replaced?
Current Answers
Answer #1: Posted by Odin on November 19th, 2016 11:30 AM
Odin
Member since:
April 10th, 2010 Points: 41,236,700
Member since:
April 10th, 2010 Points: 41,236,700
See this manual page: https://www.manualslib.com/manual/336795/Vizio-M421vt.html?page=54#manual. The pertinent issue is the one listed at the top.
Hope this is useful. Please don't forget to click the Accept This Answer button if you do accept it. My aim is to provide reliable helpful answers, not just a lot of them. See https://www.helpowl.com/profile/Odin.
Related Vizio M421VT Manual Pages
M421VT User Manual - Page 6
...12
CHAPTER 2 BASIC CONTROLS AND CONNECTIONS 13
Front Panel ...13 Side Panel Controls...13 Rear and Side Panel Connections ...14
CHAPTER 3 VIZIO REMOTE CONTROL 15
Installing the Batteries ...15 Activating Your Bluetooth Remote ...15 Remote Control Buttons ...16
Basic TV...20 Select Input Source ...20 Watching a TV Program ...20 Viewing Digital TV Program Information 21 Exploring VIZIO Internet Apps...
M421VT User Manual - Page 7
...
Connecting to the Internet ...32 Navigating the VIA Dock ...32 Using VIZIO Internet Apps (VIA) ...33
Navigating Apps ...33 Adding Apps...33 Using Profiles ...34 Updating your TV...35
CHAPTER 7 ADJUSTING YOUR HDTV SETTINGS 36
Using the On-screen Display (OSD) ...36 Input Menu...36 Wide Menu ...37 CC (Closed Caption) Menu ...38...
M421VT User Manual - Page 12
... need to the TV. 3. Unplug all cables from our certified ones, please verify that came with suitable weight specs.
12 www.VIZIO.com Place your HDTV on the wall for viewing. Write down the serial number located on the back of your HDTV. Disconnect the cables from your HDTV in the back panel of eight...
M421VT User Manual - Page 13
... be connected to the remote signal. VIZIO M421VT User Manual
Chapter 2 Basic Controls and Connections
Front Panel
POWER 'VIZIO' LIGHT- Press the button again to the sensor. Use these buttons to
increase or decrease to step up and down the TV channels. The VIZIO name lights white when powered on .
This is displayed, Component input has been selected by mistake.
. Side...
M421VT User Manual - Page 16
... to display detailed information when viewing a digital TV program. You can name your TV (called Inputs). The inputs cycle in the corner over the main screen. Once you set up during the Setup App or using Device Setup in open menus. VIZIO M421VT User Manual
Remote Control Buttons
Basic TV Functions
INPUT-Press to cycle through the entire sequence...
M421VT User Manual - Page 20
...power cord is no picture, make sure that any Cable, Satellite or offair antenna connections are watching a program using the TV input, press the channel buttons on your HDTV. Turn on the back of your wireless home network.
Press the power button on page 43.
20 www.VIZIO.com TV, HDMI,
COMP...When using HDMI, Component, or AV inputs. VIZIO M421VT User Manual
Using your HDTV for the first...
M421VT User Manual - Page 24
...TV. HDCP encrypts the transmission between the video source and the digital display for Cable or Satellite Boxes with DVI
1. Turn off your HDTV.
24 www.VIZIO.com Select HDMI-1, HDMI-2, HDMI-3, or HDMI-4 using the INPUT button on the power... HDMI input on the power to left and right (white and red connectors) audio connectors, is available in 6, 15, and 30 foot lengths. VIZIO M421VT User ...
M421VT User Manual - Page 25
...Comp using the INPUT button on
your HDTV and Set Top Box. 2. Connect the coaxial (RF) connector from your Set Top Box to the L and R AUDIO jacks on the remote control or side of the TV. 5.
Using Component Video (Better)
VIZIO M421VT... box. 2. Select AV using the INPUT button on your HDTV. 2. Turn on the power to the Y/V jack (green/yellow connector)
on the remote control or ...
M421VT User Manual - Page 26
...INPUT button on your DVD player user manual for more information about the video output requirements. HDCP encrypts the transmission between the video source and the digital display for details.
1. 2.
3. 4. This cable is available in 6, 15...jack on the back of the TV.
26 www.VIZIO.com Turn on your DVD player. 5. Turn on your DVD player. VIZIO M421VT User Manual
Connecting Your DVD ...
M421VT User Manual - Page 27
... the remote control or side of the TV. Version 9/16/2010
27 www.VIZIO.com Using Component Video (Better)
VIZIO M421VT User Manual
1. Connect the Component cable (green, blue, and red) from a source with A/V out, please plug your HDTV. 4. Using Composite (AV) Video (Good)
1. Select AV using the INPUT button on your video signal (yellow connector...
M421VT User Manual - Page 28
... remote control or side of the TV. Turn on the power to your HDTV and VCR or video camera. 4. Connect the audio cables on your HDTV. 3. VIZIO M421VT User Manual
Connecting Coaxial (RF)
Using...or side of the TV. 5. Connect the coaxial (RF) connector from your HDTV. 2. Select TV using the INPUT button on your antenna or cable to see a black/white video in the Component input, if it is ...
M421VT User Manual - Page 29
...) digital audio input you can connect it is being used.
1. Using Optical (S/PDIF)
If your HDTV. Connect one end of the HDTV. 3.
Turning TV speakers off the power to the HDTV...Using Analog 1/8" Stereo Jack Adapter
VIZIO M421VT User Manual
Connecting the cables 1.
This is active when receiving audio with the programs being viewed no matter what input is not highlighted. 3. Turn off...
M421VT User Manual - Page 36
... to select the different parameters to select one of the menu options:
• Input • Wide • CC • Sleep Timer • TV Settings • PIP • Network • Bluetooth • Help 4. b. Press the RED button on the remote control.
VIZIO M421VT User Manual
Chapter 7 Adjusting Your HDTV Settings
Using the On-screen Display (OSD...
M421VT User Manual - Page 38
...to turn off the TV in 30, 60, 90, 120 or 180 minutes. Analog Closed Caption...TV, AV (Composite), Comp (Component), HDMI-1, HDMI-2, HDMI-3, HDMI-4, and RGB (VGA).
38 www.VIZIO.com Closed Caption for regular TV is available when watching regular analog TV. If Custom is displayed. VIZIO M421VT...TV. TV Settings Menu
Input Source Select the Input Source for CC text more or less transparent.
M421VT User Manual - Page 39
... correct.
Size & Position • Horiz. Brightness The brightness adjusts the black levels in the picture.
If people's faces look at the established setting for television broadcasting. It does not produce detail that otherwise does not exist.
Version 9/16/2010
39 www.VIZIO.com
Color Temperature Color Temperature is the setting for a PC display...
M421VT User Manual - Page 45
... the
Input power button. Note: The feature is set to communicate with your HDTV. Choose from TV, AV (Composite), Comp (Component), HDMI-1, HDMI-2, HDMI-3, HDMI-4, and RGB (VGA). VIZIO M421VT User Manual
Device Setup This feature allows you find a code that device. Confirm Remote Connection Automatically program the VIZIO remote control to allow it does, select It worked and...
M421VT User Manual - Page 54
... Picture Menu.
• Check video/device cable integrity. Side Control button does not work
Poor image quality
• Perform a power cycle by : Removing the AC power cable from the back of your television for 30 seconds. VIZIO M421VT User Manual
Issue
Solution
• Make sure the power is ON (VIZIO Logo glows white).
• Make sure all HD quality resolutions...
M421VT User Manual - Page 55
... be low.
VIZIO M421VT User Manual
Issue
Display image does not cover the entire screen/ Black bars on the top or side of the image
The TV has pixels (dots) that are always dark or colored
Image "noise/fuzz"
Aspect mode differs on each input Tips for High-Definition Users
Tips for standard 4:3 Televisions. Version 9/16...
M421VT User Manual - Page 58
... via email or phone.
VIZIO M421VT User Manual
Media Viewer Troubleshooting (Future Implementation)
Issue
Solution
USB device is not recognized
Image or sound is interrupted •
or distorted.
•
•
Make sure the device is correctly inserted. For more information on warranty service or repair, after the warranty period, contact our Support Department...
M421VT Quick Start Guide - Page 2
... sure the power cord is receiving.
Get a VIZIO Blu-ray™ Disc Player. 2. For more about VIZIO Certified* High Definition cables please visit us online at resolutions much higher than old TVs, so you... crisp, clear HD picture as long as it a second time but all of the TV glows white). After powering on the TV, press the INPUT button on the front of the same settings can take as...
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