I've got a 37" LCD made by Vizio. After about twenty min. the screen start to flutter or flicker like a strobe light. Power on the unit stays on while this occures. What cani do to fix this?

if voltage constant from board to screen bad screen if voltage fluttering bad board

42" Vizio TV flickering strobing easy way to repair VW42L ...

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either inverter board fault or power supply fault!

I agree that the problem is most likely on the inverter board. I repaired a Vizio 42" LCD with the same problem, it was bad capacitors on both inverters. Cost $2 to repair. Take off the back cover to the set and check the capacitors on both boards. If they have bulging tops, that's your problem.

it was an inverter board and screen back light issue. you must check loose connector like dry joint .

It needs servicing. take it to a technician.

Hi, Yes unfortunately i know what it is. When repairing another make of hdtv one time, I used a different " BALLAST " for testing purposes-it was a little under powered to say the least-but i knew this-it allowed me to determine the bulbs were good. when the bulbs lit using my makeshift apparatus-HALF of the bulbs lit up lit up( dim on one side as well as some flickering! ) therefore you have a power supply that drives the backlights that is going "SOFT". Let FixYa know whatever else we can do to assist you. good luck. Prodzilla. P.S. there is a workaround you may try to give more life to this soft power supply, if able,go into menu and adjust brightness down a few notches until it evens out and stops flickering. Again good luck

When I turn on My RCA L40fhd41 40" television, the LCD screen constantly blinks on and off like a strobe light. The power light stays on constantly, but the screen continues to blink

lcd sets use florescent tubes to light the display and, a ballast to power the tubes just like the lights in an office ceiling.
the tubes are called cold cathodes and, the ballasts are called inverter boards. replace your inverter circuit board it connects by wires to the cold cathodes so; isn't hard to find.

Voltages do not dance around and should be constant and within stated parameters.. The board producing those crazy readings is the issue.