Question about Vizio L32 32 in. LCD HDTV

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I HAVE REPLACED THE FOLLOWING; INVERTER BOARD, MAIN PANEL BOARD, AND T-CON BOARD, STILL NO PICTURE..

.I HAVE NOT SWAP THE POWER BOARD...I DID NOTICE A BLACK SUBSTANCE BENEATH THE POWER BOARD...ASSUME IT WAS DUST

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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Jaime Hernandez

  • 2337 Answers

SOURCE: Vizio L32 hdtv10a..

Symptoms of a Defective or dying Power supplies on LCD TVs.
1. Light(s) on the front panel are behaving not normal example, blinking, amber color or
not steady, fainting, etc.
2. TV not turning ON properly.
3. TV turns OFF by itself.
4. Needs to be unplug to many times to make it work.
5. Humming or high pitch noise heard through speakers or at the back of the TV.

Posted on Dec 15, 2008

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marionbagget

  • 718 Answers

SOURCE: Vizio L37hdtv10a fails to fully turn on

You will have to isolate the main board and Inverters.
Unplug the inverters and turn on the set.
If it "turns on" then try re-connecting each inverter seperately to see if only one is causing the problem.

Posted on Mar 07, 2009

alpug

Danilo Baraquiel

  • 1961 Answers

SOURCE: my vizio gv42l fhdtv 10a picture flickers like a

you need to check first the power supply board whether the output supply 12-24vdc for the inverter board is stable and not flactuating..you can measure the output voltage with a multitester..you get a voltage output of 12-24 with the inverter board is connected or loaded to the system.be carefull of the high voltage at the inverter board..once the output is stable replace the inverter board or you can measure the output of the inverter be very carefull..the output range upto 500vac.be carefull..if the high voltage is stable replace the lamps...tnx and good luck..

Posted on Jun 03, 2010

Testimonial: "Thanks again. :)"

budmrtn

Bud Martin

  • 11361 Answers

SOURCE: Vizio SV470XVT1A has no backlight

The 24vdc is turn on by the signal from the main logic board, it is not always on, the standby 5vdc is always on. So yes it can be the power supply board is bad, but just to besure we need to find out if it is getting the turn on signal from the main board first.
You can have 24vdc at the inverter board and it will not light up the CCFL until it gets the signal from the main logic board to turn the lamps on (this is the STANDBY condition, the TV is on but the screen in not lit up util it see the video signal).
Send me good clean and clear pictures of the power supply board, [email protected], connectors of the Power supply, bottom side of the board, then I may be able to tell you which pin is a control input pin. Most people will just throwing parts in and hope that they one of the parts will fix the problem. Used Power supply module for this TV is over $100. http://www.google.com/products?rlz=1T4GGIH_enUS282US283&q=delta+DPS-379AP&um=1&ie=UTF-8&ei=USsxTKn3J6TonQfFlJGEBA&sa=X&oi=product_result_group&ct=title&resnum=4&ved=0CCsQrQQwAw

http://www.shopjimmy.com/catalogsearch/result/?q=Vizio+SV470XVT+

Posted on Jul 05, 2010

Testimonial: "Bud helped me fix my TV! It was only 1 1/2 years old. I was looking at a repair bill close to $300 - $500 and I fixed it with a $60 board! Thanks!!!"

red_eyed5000

  • 12 Answers

SOURCE: I have a vizio vz37l tv. When i turn it on the

its the main board...

Posted on Mar 07, 2011

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