Question about Vizio L32 32 in. LCD HDTV

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Dimming problem model M420VT dimming problem

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Turn off the tv. Unplug. Hold down the on/off button for 30 seconds. Plug back in and turn on.

Posted on Jan 18, 2013

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Posted on Jan 02, 2017

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Real dim display on boot


If you boot to Safe Mode is there any difference? If you connect a External Monitor,, any difference? What is the Laptop Make and Model? The OS?

Mar 05, 2013 | Computers & Internet

1 Answer

When i turn my vizio on is all it does is display vertical lines from top to bottom


mychaelmuch6
Go to menu.
press screen selection
just follow steps on how to clear or reset T.V.

Jul 23, 2012 | Vizio M420VT 42 in. LCD HDTV

4 Answers

Need Vizio E321VL TV Stand Screws


I have a M420VT Vizio TV. I used (4) M6-1.0 x 16mm screws to attach the stand to the TV stand adapter. The screws I used to attach the adapter to the TV were (3) M4-0.7x12mm. It worked out perfectly!

Feb 19, 2012 | Insignia Televison & Video

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Need 3 digit number for vizio M420VT so I can program dishnet remote


The online manual has the Setup codes list in the back. The only 3 digit Dish Network code shown is 00775. Hope this helps.

Oct 08, 2011 | Vizio M420VT 42 in. LCD HDTV

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Need to hook up WII for grand children.... Use ComCast with 5 RCA type connections to TV. No where to plug in RCA connections for WII.


Wii system dosen't take RCA component cables connections.Go to walmart,if those clecks willing to help u talk to them tell them u need a Wii system cable connections wire they'll point u to what to buy.Or better custmer serviced go to Best Buy problems is a bit more exspensive there.Tries websites like Amazon.com,Ebay.com u can buy it from there too.

Aug 12, 2011 | Vizio M420VT 42 in. LCD HDTV

1 Answer

Vizio TV remote is in conflict with Shaw TV remote. When the TV is on, the Shaw bow and the shaw remote control would not work. I turn both systems off, then turn the box on with the remote, select a...


You need to "program" your Shaw remote to control your TV, including the volume up/down on the remote.
Take your Shaw remote control, and follow the instructions on the back. If that does not work, telephone Shaw, and ask for technical support for TV.

Mar 09, 2011 | Vizio M420VT 42 in. LCD HDTV

1 Answer

Screen darkens randomly as if ambient light sensor were kicking in. I have the ambient light sensor turned off!


The Ambient Light Sensor isn't perfect, but if you're having the same problem I had, it's not an issue with the Ambient Light Sensor. Rather, your solution will be turning DCR (Dynamic Contrast Ratio) to Off.
Go to the PICTURE menu and choose Picture Mode. You can turn off DCR in one of two ways: Choose "Custom" and set it manually, or choose "Movie" or "Game" for your picture mode. (The "Movie" and "Game" default settings include DCR=off, whereas "Home" will include DCR=on.)
Keep in mind that you will need to make these changes for each input (HDMI, Comp, AV, DTV/TV). Also, if you continue to have trouble you can also try playing with Adaptive Luma under the "Custom" settings.

Jan 03, 2011 | Vizio M420VT 42 in. LCD HDTV

1 Answer

Ambient sensor on M420VT is very erratic. With no change in room ambient lighting, the picture fades to almost black; picture can be restored by hitting any button on remote control (e.g. menu button). ...


The Ambient Light Sensor isn't perfect, but if you're having the same problem I had, it's not an issue with the Ambient Light Sensor. Rather, your solution will be turning DCR (Dynamic Contrast Ratio) to Off.
Go to the PICTURE menu and choose Picture Mode. You can turn off DCR in one of two ways: Choose "Custom" and set it manually, or choose "Movie" or "Game" for your picture mode. (The "Movie" and "Game" default settings include DCR=off, whereas "Home" will include DCR=on.) Not sure about the defaults on the other modes but you can try them.
Keep in mind that you will need to make these changes for each input (HDMI, Comp, AV, DTV/TV). Also, if you continue to have trouble you can try playing with Adaptive Luma under the "Custom" settings.

Dec 27, 2010 | Vizio M420VT 42 in. LCD HDTV

1 Answer

Cant get my light brighter. It is the same brightness as the dim


What model is it? Have you tried the dim/dark button again -some units have multi-level of dim

Apr 06, 2009 | Vehicle Parts & Accessories

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