Question about Vizio L37 Television

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Vizio model #L37

My Vizion L 37 will show a green power light but wont do anything.The screen is totally black.What board will I need to fix it.Thanks,Paul

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  • vern7 Apr 14, 2008

    iam haveing pretty close to the same prob.

    standby light is ok green light powers on no pic just a dark snowy screen.

    when i press menu on remote a few times the power goes off.

    i may try the resoldering of the ps board.

  • vern7 Apr 29, 2008

    well ive resoldered my p.s. tv came on ,herd a lowd pop and now its caput.guess ill be needing a new power supply.

    ive contacted vizio and they gave me this lind for parts.

    http://www.vancebaldwin.com/



    so far ive not ben able to locate a power supply for the vizio L37.

    guess ill give then a ring

  • earthbonz May 03, 2008

    I have the same problem. Green light comes on with no other signs of power, not even a click.

  • ROBERTO BONANO May 08, 2008

    MY VIZIO L 32 PRODUCE A LOUD POP AND THE SCREEN CAME DARK,THE GREEN LIGHT IS ON,I PRESS THE ON/OF BOTTOM AND STILL ON ALL THE TIME.

    NEED THE CIRCUITS DIAGRAMS

    ANY HELP

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KNOBLE
VIZIO
L32
LCD
DEAD WITH AN AMBER LIGHT
Do Not Order A New Board For This Vizio Model. You Can Fix This Problem For Pennys. Problem: Will Not Power Up Amber Led Only. Hint: No Reset To Operate Micro (Brain Dead) I'Ve Seen (3) Various Fixs Below, One Uses A Diode, Other Uses A 10k Resistor, Try Either. All 3 Will Work, Diode Works Best For Me This Same Reset Ic Goes Bad On Other Visio Lcd & Plasma Tv'S. #1) You Remove Smd U26 On The Video Processing Board And (Add) Put A 10k Resistor Across Pins 2&3. U26 Is Near The The Tact Switch. #2) Remove U26 And Solder A 10k Tru 100k Resistor Across Pin 2&3. Start With A 10 K First. #3) Remove Reset Ic Near Tac Switch Replace With 1n4148 Diode (Nte519). Vizio Tech Support: (Valid - I Tried It) 1-888-849-4623 Opt 4 Technical Support: 888-849-4623 Try Extension 1669 (David). Hugo Carrera Parts Department 877-668-8462 Ext 1814 Vizio Inc. 320a Kalmus Drive Costa Mesa, Ca 92626 E-Mail:Hugo.Carrera@Vinc.Com

Posted on May 03, 2008

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It sounds like the main power supply board. If you can hear the relay click but no other response from the TV, it would be a good bet to start there.

I just replied to a similar problem on the same model TV. If the relay contacts are no good or if there is poor soldering on the main board, you'll get this symptom. Although a bad set of relay contacts aren't out of the question, I think it's more likely that there are cold solder joints on the board. If this is a relatively new TV and used to work fine, the thermal cycling when the TV was operating might have been enough to cause intermittent contact with the solder joints. If you're up to it, consider resoldering the main board especially near the relay section. Let me know what happens. Please rate accordingly.

Posted on Apr 09, 2008

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Do you see any burn marks or leaking components on that board? If the TV's power supply thinks it's on then it would make sense that the problem is on the main board. I've seen it here for sale: http://www.vancebaldwin.com/products/?3370-0082-0150 $126 bucks, not bad.

First try to look really close at the screen to try to see if there is faint evidence of a picture, if so then the problem is with the FL inverter that drives the backlight. But if there is no sound then it's not that but the main board. Good luck!

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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.

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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
Email supporttechsupport@vinc.com

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