My Vizio is 4 years old. Last night when we turned it on it started flashing like a strobe light. It continues to do this. What is the problem? Thank you

Question edited to add maker.
Question moved to model category.

All your issues are electronic. The clicking and lights flashing and not starting makes me think it is the security system that is the problem. You need an auto electrician with a pro grade scan tool computer to diagnose. You have many issues by the sound of it.

I installed my Hunter Ceiling Fan a little over a year ago. A few nights ago my wife told me the lights in the ceiling fan blinked a few times when she turned it on. Over the next few day the problem got much worse. When I turned on the light switch, the lights would not turn on. After a few minutes the lights would begin to flash, like a strobe light. This flashing would last for about a minute.
This morning I removed the light kit. I noticed the watt regulator, part 98480-02. I connected the wires directly that were wired through the regulator. So far, the light now works fine!

Defective LED back lights strips, or damaged EEPROM on main board. I will try a main board first, if you do nor have a TV LED strip tester.

Sounds like a loose wire nut to me. When you turn the light on the connection warms up and the wires will expand. When you turn it off they cool down and contract. Combine that with slight vibration from the fan over 4 years it could cause a loose connection. Just pull the trim ring down and tighten all the wire nuts. The light is usually the blue wire. Dont forget to kill the power first. If that doesnt work its probably a bad remote sensor.Inexpensive and easy to replace.

It needs servicing. take it to a technician.

That would most likely be the inverter/ballast part of your powerboard and may simply need to be re-soldered. The flashing usually occurs when your speakers rumble due to volume and vibration. Try muting your television and see if the flashing decreases. If it does, then you simply have a weak solder joint that can be repaired inexpensively.

Mine did the same thing. Remove the stand and back of the tv. Be careful with screen do not lay on hard surface and scratch. When you take the back off you will see a board on the left side and a board on the right side. They are labeled slave and master. Remove the ribbon cables and take board out. There are 2 capacitors on each board (about an inch long). These are probably all bad (ends bulged a little with black stuff on bulged end). Radio shack has them for less than $2.00 each. turn the board over and you can read the size of the capacitor. You need someone who can use solder wick and remove all four capacitors and solder in new ones. Notice how the capacitors are turned. Each one is labeled with a dash for negative. Make sure you bend new capacitor connectors the same and put back in the same way. Put the boards back in the tv and attach all ribbon cables. Put back and stand on. hook up your power and cable box and you are ready to watch tv with no more strobe. Me, my husband, and son did ours last week. I looked up the problem on the internet, husband removed stand & back, son with the steady hand did the soldering. Family project that went well for once.

It sounds like you may have some bad filter capacitors in the power supply. The "easy" fix could be to replace the power supply board. These capacitors can act up as they warm up.

Sounds like your Backlight Inverter Board is going out, saw one on ebay for about $55 : ) have to get the one for your model tho...

use more light:)
its very normal that it does that. it dosent get enough light so it cant focus. the only way it can autofocus is that it stobes the flash to adjust the focus automaticly. use an external flash like 580EX and u will get an focus asisten thru a red grid throne by the flash unit.