Question about Vizio L37 Television

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How to replace an Ir board for Vizio 37 by myself?

Need the circuit diagram

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Vizio or Visio television are substandard sets. I'm sorry to hear that you pruchased from Wal-mart or Target.

You might as well chauk this up to learning experience and get yourself a real set from a real dealer.

No repairs are possible within an economical prince range with your unit.

Sorry to break the bad news.

Posted on Jan 23, 2009

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Posted on Jan 02, 2017

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Vizio tv 37" picture started to get darker

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. 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.

Jan 11, 2017 | Vizio Televison & Video

1 Answer

Do I need a main board or power supply board fot Vizio E371VL HD TV?

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.
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Sep 23, 2016 | Vizio E370VL 37 in. LCD HDTV

1 Answer

Vizio tv will not turn on

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.
It will be best to replace the power supply regulator board as card basis.

Jul 25, 2014 | Vizio VO37LHDTV10A 37 in. LCD TV

2 Answers

M420mv vizio led television ir infrared doesnt work

that can be caused by either the IR sensor board or the main board. The IR sensor board would be suspected first. You can get the IR board or the main board from

Feb 09, 2013 | Vizio Televison & Video

2 Answers

My tv [vizio vf550m] won't respond to a remote.

Vizio is famous for having main board issues. If you have replaced the IR board the only two other items it could be is a broken wire from the IR to main or the main board has an issue. Nothing else can stop the remote from working provided the remote is working properly.

Nov 02, 2012 | Vizio VF550M 55 in. LCD HDTV

1 Answer

How to replace olevia lt37hvs ir receiver replacement

You may find this is impossible to do---the receiver if the set has buttons on front will be located there--if on same tiny circuit board as buttons you will have to TRY to find a replacement board--Good luck as this brand often NO parts are available.

While all IR receivers are similar they have different values and mountings.

I will presume you had the remote itself TESTED which will rule it in or out.

Ir receivers sometimes show no function unless remote is right up very close are bad---they also of course can fail where there is not any responses shown.

Apr 29, 2012 | Olevia LT37HVS 37 in. LCD HDTV

1 Answer

Flat Screen 42 inch Vizio does not respond to the remote, called Vizio tech told me to take out batteries and push every button, replace batteries and try. Worked for 3 minutes then stopped again,Replaced...

You can use your phone camera to test the remote. Place the remote to the camera and push to see the IR on the camera. If this works for more than 3 minutes then the IR detector or the processor circuit in the main board is faulty.
This means you need to remove the main panel and use a multimeter to test when the remote is used, trace and see if the fault leads further to the processor.

Jul 18, 2011 | Televison & Video

1 Answer

VIZIO 37" LCD has sound but no picture

Good day!

that problem is happen when your inverter board is defective please replaced it..

This is the picture of inverter board.


thank you and good luck

Jun 10, 2011 | Vizio VU37L 37 in. LCD TV

1 Answer

Vizio 37" no longer turn on

It depnds, if the board is labled with voltages at the DC output connectors or not, if not, you will have to trace out the connection to find out which one is 5vdc standby, switched 5vdc, 12vdc, and 24vdc (I have to do that all the time when I work on circuits without diagram).
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:


Please post back what you find.

Send me pictures if you want,

Jul 23, 2010 | Vizio VX37L Television

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