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Question posted by bluediamondpaul on October 20th, 2012

Video Display Goes Dark Sound Works, Have To Turn Off And Back On, What To Do?

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Answer #1: Posted by kas137 on January 5th, 2013 7:20 AM

kas137

Member since:
January 5th, 2013

Points: 100

100
points

Hello Had same problem heres how i temp fixed it

Unplug and hold powerbutton in for 1 minute,to reset tv.

DO NOT use any hdmi portsunplug anything in there,use the external thread for cable.(the old fashion way)

( i know a pain but it works)

Plug tv in and power on. everything works fine until you use your hdmi.

This board needs replacement cost me 42.00

Related Vizio M421VT Manual Pages

M421VT User Manual - Page 2

...of power supplied to your HDTV. • Unplug the power cord before turning on the label. If your HDTV falls, it from an area of ...voltage specified. To prevent your HDTV from the type of the display. This plug will fit only into the slots and openings on ...close to your HDTV. VIZIO M421VT User Manual Important Safety Instructions Your HDTV is equipped with a three-pronged grounded...

M421VT User Manual - Page 5

... programming through an antenna will turn off their analog signal and switch to receive over-the-air TV. Watch your local television stations may switch sooner. VIZIO M421VT User Manual Advisory of receiving Digital Broadcasts, and no Digital Converter Box is required. Analog-only TVs should continue to work as appropriate: FCC (US Federal...

M421VT User Manual - Page 6

... M421VT User Manual Table of Contents Important Safety Instructions...2 FCC Bulletin for New TV Owners ...4 Advisory of the DTV Transition...5 CHAPTER 1 SETTING UP YOUR HDTV 10 Finding a Location for Your HDTV ...10 Wall Mounting Your HDTV ...12 CHAPTER 2 BASIC CONTROLS AND CONNECTIONS 13 Front Panel ...13 Side Panel Controls...13 Rear and Side Panel...

M421VT User Manual - Page 9

..., check that your HDTV is in a cardboard carton that all of the display. Package Contents • VIZIO M421VT • VIZIO remote control VUR10 • AA batteries for the remote control... Wall mounts • High Definition cables • Extra or replacement remote controls • Sound Bars • Blu-ray DVD Players VIZIO also offers installation services and extended warranty services...

M421VT User Manual - Page 13

...up and down the TV channels. VIZIO M421VT User Manual Chapter 2 Basic Controls and Connections Front Panel POWER 'VIZIO' LIGHT- INPUT (ENTER... the green jack connector; This button activates the On Screen Display (OSD) menu. While the OSD is active, press this...When using the AV input (usually, a composite signal) the video signal (yellow color coded cable) needs to be connected to ...

M421VT User Manual - Page 14

...directly here. 14 www.VIZIO.com RGB PC VIDEO-Connect the video from 1/8" stereo plug to the Internet through this...M421VT User Manual Rear and Side Panel Connections 1. ETHERNET-Connect an Ethernet cable to an antenna or digital cable source. See Network Menu on page 50 for future functions. For digital TV stations in the HDTV Settings App. These two ports are being used as a Vizio Sound...

M421VT User Manual - Page 16

... an option in -picture feature. MUTE-Press to turn the device connected to the active input (i.e. Press it again to display the POP (Picture Outside Picture) option. 16 www.VIZIO.com If a device has been programmed to work with this remote, this button will display the list of the TV, including the HDTV Settings...

M421VT User Manual - Page 20

... buttons will not work if you want to view is connected that provides TV programming (e.g. will not work until the input ...the button until a channel scan has been run. VIZIO M421VT User Manual Using your HDTV for the first time Connecting ... Pressing this button will see a picture. Turn on your device and you have selected the correct video input source. If there is plugged into ...

M421VT User Manual - Page 23

... 9/16/2010 23 www.VIZIO.com VIZIO M421VT User Manual Chapter 5 Connecting Equipment Which Video Connection Should I Use? You have six options for connecting your video equipment box to the most advanced for transmitting audio: one red and one for the sound. HDMI provides digital quality and amazing sound so if your HDTV from a source...

M421VT User Manual - Page 24

... 2. 3. 4. VIZIO M421VT User Manual Connecting Your Cable or Satellite Box Using HDMI (Best) Cable and Satellite Boxes that have audio sound coming from your HDTV. 3. Note: • • Turn off your HDTV. To...the video source and the digital display for more information about the video output requirements of the TV. Refer to your HDTV and your Cable or Satellite operator. Turn on...

M421VT User Manual - Page 26

... for optimal results. VIZIO M421VT User Manual Connecting Your DVD...call 877MYVIZIO (877-698-4946) for added security and protection. Turn off your HDTV and DVD player. Connect the 1/8-inch stereo ...encrypts the transmission between the video source and the digital display for details. 1. 2. 3. 4. HDMI Connections for more information about the video output requirements. Select HDMI-1,...

M421VT User Manual - Page 27

...your HDTV. 4. Expect to your HDTV and DVD player. 2. Using Component Video (Better) VIZIO M421VT User Manual 1. Turn off the power to the COMPONENT L and R AUDIO jacks on your HDTV... video signal (yellow connector) into the Component input (green connector) and match up the audio connectors (R and L) for the sound. Turn on your HDTV. 4. Version 9/16/2010 27 www.VIZIO.com Turn off...

M421VT User Manual - Page 28

...the sound. Connect the coaxial (RF) connector from your HDTV. 2. See Auto Channel Search on your VCR or video camera ... 43 for more information about the video output requirements of the TV. VIZIO M421VT User Manual Connecting Coaxial (RF) ...HDTV. 2. Turn on your HDTV and VCR or video camera. 4. Turn off the power to accept A/V signal (Composite) from your VCR or video camera to ...

M421VT User Manual - Page 30

... the INPUT button on your PC computer user manual for more information about the video output requirements. Connect the 1/8-inch audio cable from your computer to your HDTV....we recommend 1920x1080. 2. Turn on the remote control or side of the TV. VIZIO M421VT User Manual Connecting a Computer RGB (VGA) 1. Turn off the power to have audio sound coming from the computer through...

M421VT User Manual - Page 41

...sound to channel, volume fluctuations occur. TV Speakers Turn the internal speakers On or Off. Choose from Fixed or Variable. SRS TruVolume When the programming switches to a commercial or when changing from Dolby Digital, PCM, or Off. Choose from On or Off. When set to Fixed, the volume can only be displayed... is designed to Variable, volume from Flat, Rock, Pop, Classical or Jazz....

M421VT User Manual - Page 42

... frequency to be adjusted. VIZIO M421VT User Manual Audio Control Select which device...sound to External, the VIZIO remote will attenuate the frequency. A new menu will only be displayed... showing the available equalizer functions. Note: The Equalizer adjustment will be available when SRS TSHD is set to your Bluetooth receiver, such as Bluetooth headphones. Bluetooth Audio Turn...

M421VT User Manual - Page 53

... to peel. • The screen glass is off . • Make sure your television. Wring liquid out of the failure. VIZIO M421VT User Manual Chapter 8 Maintenance and Troubleshooting Cleaning the TV and Remote Control 1. display • Note: If no computer is working correctly. • Try another electrical outlet elsewhere in accordance with any major retailer...

M421VT User Manual - Page 54

....) • Try the external device on the television. sound • Interference 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. • Check the video settings of your antenna is connected securely...

M421VT User Manual - Page 55

...the room or close to a window. • Check the video settings of your TV's display capabilities. Reinsert the power cable and power on the television • When your HDTV's capabilities exceed a digital broadcast ... 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 ...

M421VT Quick Start Guide - Page 2

...-air antenna. If this does not work, try it a second time but all...and special offers. M421VT QUICK START GUIDE HDTV 3 WAYS TO WATCH HIGH DEFINITION VIDEO 1. Standard analog...Sound Bar with direct cable hookup from wall or antenna Cannot return to Setup App Screen is no signal and/or turning off -air HD signals, and for the image to select TV Settings. The HDTV will continue to display...