How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Nathan Your Own Question
Nathan, Installer
Category: TV
Satisfied Customers: 24964
Experience:  Custom home theater installer, authorized dealer top brands.
Type Your TV Question Here...
Nathan is online now
A new question is answered every 9 seconds

My 50 tv purchased December 2015 has developed a dark square

Customer Question

My 50 tv purchased December 2015 has developed a dark square in the lower left quadrant on the screen. Can this be corrected?
Submitted: 1 year ago.
Category: TV
Expert:  Nathan replied 1 year ago.

Hello, I’m Nathan, and I’ll be assisting you today. My livelihood depends on your positive feedback, so your satisfaction is my highest priority.

Sorry to hear you’re having trouble.

Does this happen on all sources/inputs?
If you bring up the vizio on screen menu or input screens, is that obscured by the dark area too, or does the menu show in front of it?

How large is this?

Customer: replied 1 year ago.
all inputs and sources. The condition is more of a shadow taken up about one third of the screen. The menu does seem to show in front.
Expert:  Nathan replied 1 year ago.

So the menu is full brightness and color, with the dark area behind it?

Customer: replied 1 year ago.
that seems to be the case
Expert:  Nathan replied 1 year ago.

Thank you for confirming.

Unfortunately, the issues you are experiencing are symptomatic of an internal hardware defect, meaning a faulty main/control board, though there are many possible failure points. This issue could be a manufacturing defect, but is also often caused by a power event (shock/surge, prolonged over/under voltage condition, etc).

This could also be the result of age related wear and tear; that type of failure wouldn’t be surprising for a vizio product, even for a tv less than a year old.

There is one step you can take here, both as a possible fix, as well as a diagnostic evaluation:
1) Unplug the power cord from the outlet

2) Wait at least 1 hour (60+ Minutes)

3) Press and hold the power button (on the set, not the remote) for 60 seconds
4) Keep holding power button while plugging back in, and for another 60 seconds after. When plugging back in, go directly to the wall outlet, bypassing any power strips or surge protectors.

If this reset process does not work, it would unfortunately confirm an internal hardware failure.

Based on the purchase date, you should be within the vizio warranty period though, and they would cover the cost of repairs. You'll have to take it in to the closest repair facility, after they authorize a warranty claim (call(###) ###-####.

Best regards, ***** ***** for the news,


Expert:  Nathan replied 1 year ago.

Do you need more help with this, Bob?