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Vizio dtv "scan error"

Even after a factory reset, a "hard reset" (unplugging the TV and pressing the power button for 30 seconds), and scanning with the TV cable disconnected, an auto scan (with the source set to cable) results in a "scan error" after about 70% complete. A manual scan, with the scan limited to channels 1 to 92, completes successfully, but doesn't find all of the channels that are available. A manual scan that includes channels 93 or higher always results in a scan error. Either auto or manual scanning using an OTA antenna always results in a scan error. And finally, after finding channels using the 1-92 manual scan, the found channels don't display after the TV is turned off and back on.

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REPLACE main board!

Posted on Jan 21, 2013

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Posted on Jan 02, 2017

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SOURCE: Not able to scan for digital OTA channels on a JVC LT-32X667 LCD

Seeing as it does not have a digital tuner in it, I would think this would be the problem, you will have to get a box for it.

Posted on Aug 25, 2009

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SOURCE: Channel scan doesn't complete

if you're only using antenna, maybe your signal is weak try using a better antenna, and aerial one.

Posted on Jun 15, 2010

  • 14 Answers

SOURCE: When I turned the tv

Get your owner's manual and look in the section on setup. This will guide you on how to set this up. Sounds as if after the setting are made, they are not being saved, somehow. Let me know how you make out, and I will continue on assisting if you like. Thanks, will need the model & serial numbers.

Posted on Jan 22, 2011

  • 1 Answer

SOURCE: Vizio L32 HDTV10A mfg in 10/06- digital OTA tuner

Did you ever find a solution to your issue? I just had the same thing happen, and am concerned that the digital tuner is shot.

Posted on Feb 12, 2011

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SOURCE: Hitatchi 42HDF52 only receives channel 5 and 6 on analog RF input

If you have tried autoprogramming and have found nothing it may be a bad tuner. Is your VCR is hooked up via coax or into a video input? If it is hooked up via video and is working but the coax connection direct isnt it will be a bad TV tuner. Easiest cheapest fix is to use you VCR to change channels or get a Digital Cable Terminal from you cable provider and hook it into video or compnent.

Posted on Jan 29, 2009

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How do I fix my Vizio TV model E421VA? Details are below. It has a black screen and no audio.


Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here.

Nov 01, 2016 | Vizio Televison & Video

Tip

Television factory resets


Factory Resets / modes

For all listed procedures, start with TV on, in TV mode, unless otherwise instructed. After procedure is complete, unplug set and re-plug in to finish reset.

If more than one procedure is listed for a given manufacturer, try the different ones until you see which one works for your set.

Coby:****************************************-

Enter menu, hi-lite "audio" then enter 8893

mode/source 2580 select "other setting",select "shipment" then yes, after it exits service menu you need to power set off.



Dynex ****************************************-

source/input 2580

hold vol down on tv and hold #1 button on remote, vol will jump to halfway and set shuts off. Turn back on have 1st time setup screen.

source/input 2580

menu 1999 (tv is on)



Element ****************************************

menu 0000

menu 1147


Haier ******************************************

pull up menu, hi-lite "audio" then enter 8893




Hisense *****************************************

In customer menu go to"Parental" enter 0000 then select"Clean All" then power the set off and back on and first time setup menu will be there.

For some models, same as above model except in menu it is labeled "Lock"



Insignia *****************************************-

input 2580 (tv is on)



Mitsubishi ****************************************

Menu 123 or menu 2470 (tv is on)



Panasonic

Hold vol- on TV, press and hold menu button on remote



Philips ******************************************

Push menu, select"Features"then select"current software info" push 062596-info on remote then push info again then red"initialize appears and changes color then complete. Push power button to exit

TV is on,push 062596-info on remote,then push info again, red"initialized"appears it turns green when completed, then push power button to exit

Polariod *****************************************-

Hold vol- and chan- or hold vol+ and chan+ (tv is on)



Proscan ******************************************

In customer menu go to setup,select parental control menu, enter 0000 then select "clear channel list".



RCA *******************************************-

Menu 1147



Sanyo *******************************************

hold vol down on TV, press and hold #1 button on remote, vol will jump to halfway and set shuts off. Turn back on have 1st time setup screen.



Samsung *****************************************-

Mute 182 power (tv is off)
(On some models, Factory Reset is on this menu, on some, you must go into the "Options" submenu



Seiki ********************************************-

Menu 0000



Sharp ********************************************
(Note - On Sharp models, you will need to look through the menus to find the reset option)

menu 1999

menu, 3481

menu 1147

while holding vol- & input buttons on tv plug in set when "k" appears push vol- & chan-



Sony *********************************************

Hold "arrow up" on remote and push power button on tv (tv is on)




Symphony *****************************************-

Source/input 2580




Toshiba ******************************************-

on Menu, select "Installation", then "System Information" press the right arrow button, ("System Information" will change to "Factory Reset" or something similar) follow on-screen instructions



Vision Quest ***************************************-
Source/input 2580



Vizio ********************************************

In customer menu under "Help" tab is Factory Default enter 0000

Vestel (most):
Menu 4725 then select "RESET"

Samsung (European):
Power off, Info - Menu - Mute - Power, then find factory reset and execute option.

LG/Zenith:
Hold MENU on TV and MENU on remote for 5~10 seconds, then select reset option.

NEC:
While powering on hold "MENU" or "INPUT" on TV, depending on model. (Only disables error lock out/buffer and puts TV in temporary service mode.)
To reset to factory, on remote, Off Timer - Menu - Exit - Off Timer, then select reset option.


Vizio Service Menu Method 1
1.Turn The TV off.
2.Press and hold the {CH +} & {CH -} buttons on the TV.
3.Then press and release the {POWER} button on the TV.
4.Release the {CH +} & {CH -} buttons.
5.Now press the {MENU} button on the remote.
6.You should get your regular menu up, but with a "F" in the bottom right corner of the menu (This is for factory).
7.Press and hold the {MENU} button for few seconds.
8.The Service Menu will be displayed.
Vizio Service Menu Method 2
1.Turn The TV off.
2.Press and hold the {CH +} & {CH -} buttons on the TV.
3.Then press and hold the {POWER} button on the TV.
4.Keep all three buttons pressed for few seconds.
5.Now press the {MENU} button on the remote.
6.You should get your regular menu up, but with a "F" in the bottom right corner of the menu (This is for factory).
7.Press and hold the {MENU} button for few seconds.
8.The Service Menu will be displayed.
Vizio Service Menu Method 3
1.Press and hold the {EXIT} button on the remote for 3 seconds then release it.
2.Then press the {1} {2} {3} buttons on the remote.
3.To exit, press the {EXIT} button.
-------------------------------------------------------------------------------------------------------
GV42L FHDTV10A / JV50 / SV42 / SV320XVT / SV370XVT / SV420M / SV470M / SV420XVT1A / SV470XVT1A /
VECO320L1A / VO22L / VO32 / VO37 / VO47L / VOJ320 / VOJ370 / VP322 / VP42 HDTV20A / VP422 / VS420LF1A /
VU42 / VW32 / VW37 / VW42 / VX20 / VX32 / VX37 HDTV10A /VX42

Push "Menu" on remote and then push "Vol-" and "Input" on keypad

GV46 / P50HDM / P50HDTV10A

Press "Ch-" and "Ch+" buttons together once on keypad

GV42 / L42 / VP42HDTV10A / VP50 / VX37

Press and release "Menu" on keypad. Hold "Ch-" and "Ch+" buttons on keypad, then hold "Menu" on remote.

P42

Hold "Ch+" and "Ch-" along with "Power" on keypad. OSD will show "F" on right bottom portion of OSD.

VM60P

Press "Info" on remote, then press "Right Arrow," "Down Arrow," "Left Arrow," "Up Arrow," "Right Arrow."
The TV will show "Enter Factory Mode." Press "Menu" after message disappears and go do to "Setup."

GV47

Press "Menu" then press the following combination: "Info," "8," "2," "0," "6."

SV420M / SV470M / VF550M / VF550XVT1A / VF551XVT / VL260M / VL320M / VL420M / VL470M / VO320E /
VO320EP8 / VO370M / VO420E / VP504 / VP505

Press "Menu," and then press "2," "4," "8," "9."

SV420M / SV470M / VF550M / VF550XVT1A / VF551XVT / VL260M / VL320M / VL420M / VL470M / VO320E /
VO320EP8 / VO370M / VO420E / VP504 / VP505

Press "Menu," and then press "2," "4," "8," "9."

VA19 / VA22LF / VA220E / VA26

Press "Menu" and then press the following combination: "0," "6," "2," "5," "9," "6"

VA320E / VA320M / VA370M / VT420M / VT470M

Press "Menu" and then press the following combination: "1," "9," "9," "1"

VW22 / VS370E

Press "Mute" once OR "-" twice (the dash next to the "0") and then press the following combination: "9," "8," "7," "6"

----------------------------------------------------------------------------------

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on Apr 23, 2015 | Televison & Video

1 Answer

Televison station won't scan


If you are receiving a "No Signal" error message, verify that:
  1. All of the cables physically connected to the TV and the input device are secure.
  2. The input device is turned on.
Your TV needs to scan for channels before it can show programming from an antenna, from cable TV when the cable comes directly from the wall (no cable box), or from a cable or satellite box connected to the TV with a coaxial (RF) cable. Do not scan for channels if you have a cable or satellite box connected using AV (Composite), Component, or HDMI cables. The box selects the channel, not the tuner inside your television. If you are not using the "TV" input, press the INPUT button on your remote until the correct input mode is selected.
To perform a channel scan using the coaxial input:
  1. Press the INPUT button on your remote to view your current input source. The TV (coaxial cable) input must be selected. This may appear as "TV," "ANT," or the channel and call letters of a station.
  2. If the TV input is not selected, press INPUT until the TV input mode is selected.
  3. Open the on-screen menu and select TV or Tuner option. (This varies by model.)
  4. Highlight Tuner Mode and select the correct option:
    • Antenna-over-the air signals from an antenna
    • Cable-direct from the wall cable TV, or a cable or satellite box connected to the TV with coaxial cable
  5. Select Auto Search or Auto Channel Scan. (This varies by model.)
  6. When the search reaches 100% complete, exit to the menu.
  7. Check the available channels:
    • Antenna or direct-from-wall cable-Press the Channel Up and Channel Down buttons on your VIZIO TV remote to view the available channels.
    • Cable or satellite box- Will return only one channel. Use the cable or satellite remote's Channel Up and Channel Down buttons.
If this does not resolve the issue, power cycle the TV and then re-run the channel scan:
  1. Turn off the TV.
  2. Unplug the TV from the electrical outlet.
  3. While the TV is unplugged from the wall, press and hold the Power button on the TV for 30 seconds.
  4. Release the power button.
  5. Plug the TV back into the electrical outlet.
  6. Turn on the TV.
Note: There is also an option to reset the TV to the factory default settings. This option is in either the SETUP or SYSTEM section of the on-screen menu. The option may be "Reset all settings", "System Reset," or "Reset & Admin." Consult your TV's user manual for the location and steps for resetting your model.
  1. Remove the coaxial cable from the DTV/TV connector on the back of your television and perform a channel scan to clear the existing channels. See the procedure above. This should not find any channels.
  2. Re-attach the coaxial cable to the DTV/TV connector and perform a new channel scan.
This video shows troubleshooting steps to use when a "No signal" message appears.

Jun 25, 2014 | RCA 46 46LA45RQ LCD TV

1 Answer

Resetting without going to the menu for a vizio m220nv


Get into the Vizio TV service mode

There are to options to get into Service mode:
Option 1:
Turn the Vizio TV off.
Press and hold the CH + & CH - buttons on the TV.
Then press and release the POWER button on the TV Vizio.
Release the CH+ & CH- buttons.
Now press the MENU button on the remote.
You should get your regular menu up, but with a "F" in the bottom right corner of the menu (This if for factory reset).
Press and hold the MENU button for few seconds.
The Service Menu will be displayed.
Option 2:
Turn off th Vizio TV.
Press and hold the CH+ & CH- buttons on the TV Vizio.
Then press and hold the POWER button on the TV.
Keep all three buttons pressed for few seconds.
Now press the MENU button on the remote.
You should get your regular menu up, but with a "F" in the bottom right corner of the menu (This if for factory reset).
Press and hold the MENU button for few seconds.
Service Menu will be displayed.

Feb 18, 2013 | Vizio M220nv 22-inch Full Hd 1080p Led Lcd...

2 Answers

No sound from E371VA Vizio TV


tried first with unplugging and re plugging the tv unit to reset the power supply as will as the any program.

Nov 14, 2012 | Vizio E371va 37-inch Full Hd 1080p 120 Hz...

1 Answer

Is there a reset button? My son tried to plug the computer into our Vizio tv and now there is no power - it doesn't come on. I think he inserted something into the "service" plug.


We have a 42" LCD, model E421VA that had a problem. I called Vizio and they told me how to reset the TV. Unplug the TV from the power source, press and hold the TV power button (located on the TV) in for 30 seconds, then plug the TV back in and turn it on. Good Luck

Sep 04, 2010 | Vizio Televison & Video

2 Answers

Vizio L32 DTV menu freezes


Hi did anyone replied to you? i am having the same problem. if you know any fix... PLEASE... Please .... let me know

Aug 29, 2009 | Vizio L32 32 in. LCD HDTV

1 Answer

No Picture or Sound on Vizio 52" Plasma TV


Try to use the reset factory reset feature. Unplug the set. After unplugging press the power button for 30 seconds. Plug the set back in and turn it on.

Apr 21, 2009 | Vizio L32 32 in. LCD HDTV

1 Answer

Vizio LCD DTV 32 inch. Model L32. I can't 'scan' for digital channels. When I go to DTV, then Menu and scroll right or left to "TV tuner setup' I get a blue screen and nothing else. No key on the...


Follow up on No DTV tuner after unplugging it a month for vacation. After I let it set plugged in for about 2-3 days it started working normally again and has been fine ever since. I hope this may help someone else. Genez 6-7-09

Mar 23, 2009 | Vizio L32 32 in. LCD HDTV

4 Answers

VIzio channels won't change


press the menu button in the middle of your remote and scroll over to the middle tab that's labled "TV" and then scroll down to "auto search". click on this option by pressing the right arrow key on your remote so that your T.V. and "re-scan for channels. It might take awile. I took me about 5 minutes but for majority of the time it was stuck on 45% while it was scanning.

Jun 28, 2008 | Vizio L32 32 in. LCD HDTV

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