Question about Vizio L32 32 in. LCD HDTV

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Orange light is all I get.

Please someone help me on this. I have replaced the power board on the VX20L 20" Vizio TV and I still just get the orange light. Could the main input board going out cause the TV not to turn on at all (other then that annoying orange light)? I have tried turning it on with the side buttons and the remote. I have 2 of these TV's and they do the same thing. Any help would be appreciated. I know it is not the Power Board/Inverter Board. So I think it has to be the Main Input Board or the Control Board (that's all that is left unless the screen itself has went out but I do not think that is the case).

Thanks,
Ced

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  • Cedric Hamilton Jul 20, 2009

    Thanks for the update. Do you know of any cheap place that I can get the mainboard?

    Thanks


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99 percent its the mainboard not the powerboard, especially if you have amber led. The mainboard swap is pretty simple if you can get the parts.

Posted on Jul 19, 2009

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1 Answer

Turns off after about 20 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.

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http://electronicshelponline.blogspot.com/
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.

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You may be buying a main board, only a few guys in the industry even bother servicing main boards. Outside of a bad cap, fuse, or regulator its time to replace the board. If you have standby power, and you're not getting the "PS ON" signal from the main board, your main board is bad!

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It may have the problem in the power supply/inverter board, you need to check for 12~18vdc power supply section for the backlights inverter circuits.
Boards: http://www.shopjimmy.com/catalogsearch/result/index/?q=Vizio+VX20L&stock=all

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Please post back what you find.
Please leave rating if it helps.

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If the tuner is bad, changing the mainboard should fix the problem.

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