Question about Vizio L37 Television

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VIZIO L37 I replaced the entire power supply board #0500-0502-0121 still does the same thing.So now replacing both the main board(3370-0082-0150] an the power supply I dont really know of anything else to get.I dont want to keep spending more money on it.What do you think?Do you think I should just forget about?It no longer has a warranty either.Thanks pcrane1..

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  • pcrane1 Apr 02, 2008

    thanks for your help i will do that.



2 Answers

Can I buy the parts you change out?

Posted on Jun 09, 2008

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If anything, try taking it to a tv repair shop and see if they can find something wrong with it by looking at it which I am physically unable to do online. See if they can look at it free and tell them what you have replaced but I don't know what else without looking at it myself. I hope you get it working.

I doubt you can get a free inspection of it but you can try. Possibly let them know how much money you have spent already and maybe they will give a little leeway. Good luck.

Posted on Apr 02, 2008


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The main board sends the on/ off signal to the power supply board. If a new power supply doesn't fix it, then the main board is faulty.

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Fault with the main power supply regulator 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.
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.

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If you see the back light, then you should have 24vdc on the main power supply board which it gets the turn on command from the maun board. If you do have all those voltage, then it does sound like you need the new main board.

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Vizio TV (L37) will power up but no picture

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Check all electrical connections. If standby light is off when plugged in, probably needs Power Supply board replaced. If standby light is on (Orange/Amber color) may need Power Supply board and or Main Board. If set was shutting down on it's own leading up to it not powering on at all, may need Main Board, and possibly Power Board as well. If standby light has changed from Orange/Amber color to Green, the set IS powered on, and you have an issue other than power.

Oct 04, 2008 | Vizio L37 Television

1 Answer

Vizio model L37

here, try the trouble shooting guide and let me know start with page 56, here is the link

Let me know when you have tried the trouble shooting for picture and sound even though this may not help, Also, since replacing the board didn't work, I will suggest going right to the manufacturer on this since the board was the only thing that really made sense for both to be out. Otherwise there might be a loose connection somewhere, anyway call them and let me know what they tell you and if they can't help, then you might have to take it in somewhere to have it checked, but the main board is the only thing that really makes sense

Main support number 714-668-0588

Mar 24, 2008 | Vizio L37 Television

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