Screen on my 2007 vizio flatscreen tv went black but the sound still works. i called the only repairman in town and he says not worth fixing.too expensive and vizio not a good tv. what's you opinion.

It is good spec, and 4K so this Vizo is probably worth fixing, most aren't, they are a cheap brand..

https://www.google.com/search?q=V585-H11

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Yes,the tv main Tuner signal board it is the problems and the causes it have intermittents shorts in sides.Tries websites like Shopjimmy.com,Ebay.com to buy a whole new refurbish tv main Tuner signal boad for the replacement.

This sounds like the tripler for the lcd display, or a capacitor in the power supply board blew. You can replace them yourself if you can indentify the bad part(s), but this will require some disassembly to get at them, of course.
My suggestion would be to get a mobile repairman out to fix it. Many towns have them these days, and they will come to your place to fix it, and they're reasonable.
You can google "Tripler replacement" and get some information on it, if you elect to try to repair it yourself.
Good luck, and hope this helps.

No. You need a new monitor.

It sounds like a problem with the power supply. I had the same thing happen on a TV that was only a couple of years old. It did the same thing that you have mentioned. Once in a great while, it would turn on, and then we'd just leave it on because we didn't know when we would be able to get it to work again. The problem was, to buy a power supply for it we could get another TV. It just wasn't worth it.

Your flatscreen might be under warranty. I would look into that.

Your TV mainboard is damaged and need to be replaced, the price should be around $80-190 and you can do it yourself.

something is wrong call vizio i bought the same tv two days later all of the color on the screen that should be black is green called repairman who came tv was working and after he replaced the mother board and daughter board tv was black turned on but no pic he tried again and i heard the arching sound he zapped it i was told by repair we need to order the power board it willl be another 3 to 5 days
i called vizio the minute that he left i was so pissed and that is not like me they are sending a new tv that was thursday i still have to wait 7 to 10 days but they are standing behind there tv i will give them that

Purchased a VIzio TV and ended up with the Red color where the black should be and all the answers on here scared me.... so called Vizio Customer Support on a whim - just in case...Rep told me to unplug it for a bit and then hold in the power button for 5 seconds and then plug it back it. Worked like a charm for me :)
Not all fixes will be this easy - but worth a try. Good luck!

Turn off the closed captioning

This is called the pop of death! If you call vizio they will ask you if you heard a pop, this is a common issue and unless your under warrenty your looking at 916$ to fix it. (assuming you have no sound! If you do its 430$ plus tax for parts and repair. You can buy a used one on ebay for that price!

I have the parts numbers if you want them!
Call vizio if you have had this system for under a yr the will fix it free!

As for me my 50 and 42 inch had this issue and well I am out of warrenty.. I hate vizio lol!