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My vizio tv E701i-A3 Model powers off at random. Should I replace the power supply, main or TCON board?

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 2 Answers

SOURCE: My VP504fhdtv10a vizio plasma TV when connect

Logic Control D Board got nothing to do with this problem. This is your main power supply gone bad(usually not the sub power supply). I just repaired my VIZIO by replacing main power supply. Just remove back cover and your board will be right in the middle of the screen. Just get board part/serial # and google it. My best price was through eBay(around $100). Everything is fine now.

Posted on Feb 07, 2011

joeguest2
  • 2080 Answers

SOURCE: i have a vizio lcd

Here is a link to the Online User's Manual for your TV in case you don't have one already:

http://docs.google.com/viewer?a=v&q=cache:z4kjPAcpGywJ:www.vizio.com/documents/downloads/hdtv/VU42LF/Manual.pdf+vizio+VU42L+fuse&hl=en&gl=ca&pid=bl&srcid=ADGEESj4QgBLP8c9lcHQnjaCEE8jv7u6hr8LJ2nQPfaXPZSQ__EcWuaUV87DM4fstqd5caBPBDLL4oCW8_njGo1_NFx2nVCcrrleQrayRdd4-uK_UH0ss-9t9InUG6dUDYHDxroxPc29&sig=AHIEtbSDMOtw3BgFtzO6CkcU-FUNHlIYbw

Some LCD TVs have a fuse fitted right where the power cord enters the case and is accessible through a small removable panel. However, I didn't see any mention of one for this model in the manual or on related forums.

It certainly seems like you are not alone in your troubles with VIZIO products though. See the disparaging comments regarding your model tv at the following link:

http://hdguru.com/disposable-hdtvs-vizio-responds/108/comment-page-4/

Unfortunately none of them seem to have any solutions either.

Good luck.
Sorry I couldn't help more.

Posted on Feb 16, 2011

SOURCE: Vizio 42 in L42HDTV10A no power no lights no nothing

You can look at the various module failure symptoms and service / replacement options for the L42HDTV10A here:
http://www.coppelltvrepair.com/search?Q=l42hdtv10a&As=false&Pf=&Pt=&Sid=false&btnsearch=Search

Posted on Apr 25, 2013

gopakumarg43
  • 74118 Answers

SOURCE: Replaced power supply board and main board on Element ELDFW462 TV.Now I have no power on TV.Can you help me?

Contact any service technician. This is not a service work; can be done with ease by a customer. Especially who is not aware in electronics. Gopakumar Gopalan Google

Posted on Jan 05, 2015

  • 1249 Answers

SOURCE: I will start from the beginning. Back in Sept. my vizio tv would just randomly turn off here and there, but would always turn back on. Mid october the tv randomly turned off and never turned back on.

Claim lightning damage, put old boards back in it, sell new boards on ebay while a shop fixes the set for free (minus deductible paid for by selling ebay boards). Tada, repaired!

Or just sell the panel on ebay and buy another tv. Don't break the panel shipping it. 25366436-l0u5xrrbjmm23votbgnhzwek-1-0.jpg

Posted on Jan 12, 2015

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Vizio tv model #e701i-a3 turns on then after minute make loud noise and shuts off. can you tell me whats wrong with this TV?


Sounds like The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

May 11, 2017 | Vizio Televison & Video

1 Answer

Vizio e701I-A3 TV.The TV turns on & shows a good picture at TV menu. After on for a minute it will show lines & will not allow me to turn it off with the remote.


The TCON board or the LCD panel is faulty. Can confirm by replacing the TCON board
If you wish to get some details; visit the site linked here. Pull up older posts. http://electro-medical.blogspot.com/

Jan 05, 2017 | Vizio E701i-A3

1 Answer

My vizio e701i-a3 turn on but stay in blank black and after 1 minute it turn off whats the problem


The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

Oct 17, 2016 | Vizio E701i-A3

1 Answer

What the best place to start on trouble shooting a Vizio E701i-A3 tv that comes but doesnt have a picture.


Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electronicshelponline.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.
..

Oct 11, 2016 | Vizio E701i-A3

1 Answer

I have a Visio 70 in smart tv model #e701i-a3e and the tv goes blank for a few SE ones very 10 or so minutes then turns back on


The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

Sep 17, 2016 | Vizio E701I-A3 70" LED TV 1920x1080, 120...

1 Answer

Hi I have Vizio TV mo­del E701I-A3 the prob­lem is I have audio n­o vedio but the scree­n dark navy blue plea­se help? Thanks


back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electro-medical.blogspot.com/

To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Sep 09, 2016 | Vizio Televison & Video

1 Answer

What's my next step in diagnosing my Vizio LCD TV picture issue?


Hi Tim,
If all the boards you replaced were good and working, the only thing remains is the panel if the backlights are on. Please see that the LVDS cable is carrying voltage to the Tcon board.
Good luck.

May 10, 2016 | Vizio E701i-A3

1 Answer

Powers on, backlight comes on then power LED and backlight slowly fade and turns off after about 45 seconds.


Fault to its main 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.

Dec 02, 2015 | Vizio E701i-A3

1 Answer

E701i-a3e. Why no picture, no sound?


Fault to the main power supply regulator section. Either it will be on a separate board, or on the part of its main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. 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/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

Aug 11, 2015 | Vizio Televison & Video

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