TV Says No Signal

I have a very weird problem with a brand new Vizio TV.
I have FiOS, with two DVR set boxes.
I just got the TV and went to set it up last night. I plug in the 2nd FiOS box via HDMI and it says no signal, no matter with port I use. Yes, I've selected the proper input, yes the cords work.
So I try the box on a different TV, and it works fine. So not a box problem.
So I bring down my main FiOS set box and plug it in via HDMI. Works with the new TV!
So the TV works, the HDMI works and both boxes work but just not when I use the 2nd box with the TV, then it says no signal.
Any thoughts? This defies logic! TIA

Accepted answers

billmunoz

I had the same problem, and called Verizon tech-support. Apparently, a memo just came out with a solution. It’s a Vizio TV problem. Here is the fix:

1. use your Visio remote

2. press the menu button

3. Select “input settings

4. scroll to the input used by your Fios cable box (usually HDMI-1). Select that.
5. scroll to Full UHD color

6. turn it “on”

your picture should come on. Simply press “exit”

that should do it!

All comments

CRobGauth

What model boxes do you have?

I have to ask: I assume you are conecting both boxes to coax?

Have you tried connecting them both to another TV?

JJS89

I have the latest set top boxes, I believe the FiOS tv 1 and the mini. Yes, both are connected to coax.

I've connected them to other TV's and they both work. So that's the rub. It appears to be a TV issue, however, as I mentioned, the bigger set top works with the television, it's the mini that won't connect. But oddly, both set tops work with other TV's. That's what is so perplexing.

Ccanino53

Is it possible the offending mini is set up for a resolution the one TV can't handle? Look at the two boxes and make a note if any settings are different between them. Then match the settings from the main box to the mini.

JJS89

Tried that too. Still not working. Thinking I may have to return the TV at this point. Actually got a new mini sent from Verizon and still says no signal, even though it's recognizing the box is connected. Perhaps a Vizio issue? So odd. And super frustrating.

JB713

Did you find a solution?

I have the same problem. New Vizio TV (M507-G1) doesn't receivce signal from mini box.

Mini box was previously connected, without incident, to a Samsung TV and Sony TV, all using the same coax cable to mini box.

Even connected mini box to a monitor and the signal was received with out incident.

Tried a different working mini box from Westinghouse tv in house, still no sign to VIZIO TV (M507-G1).

I have yet to try the main fios box on the VIZIO TV.

Ccanino53

In the input settings menu on the TV there is a setting for Full UHD Color. Whatever it is set to, change it. See if that helps.

JJS89

Called Vizio. The rep basically said it appears it's an issue with the TV itself. Returned the TV and got a Samsung. Worked perfectly. Vizio needs to alert customers and Verizon that this is a known issue. But that's doubtful.

JB713

Thanks for your reply.

I also returned the VIZIO and purchased a Samsung as well. The Samsung worked immediately.

MWOO1

I am having the exact same issue with a recently purchased HISENSE TV. Funny thing is it worked fine for a few months and then wireless box quit working on it yet works fine on other LG TV

felicityt4

The issue to resolve the problem is go to tv menus. Then go to input setting. Click on hdmi port mini is connected . Click down to Full UHD color and turn it on. That will recognize the verizon mini box

Edm1

My Vizio is two years old. I can not play Netflix and YouTube through the TV no problem. I can stream Netflix and YouTube to the TV and also to Chromecast plugged into the AVR with no signal issue. I think it’s on the Verizon side.

Edm1

I meant I can play Netflix and YouTube no problem

Zad

i just bought a new Samsung series 8 UHTV and have a similar issue. Everything works find with my old Samsung but with the new one, only works using the mini box using WiFi. If I use either the main set top box or mini box using the coaxial cable, the tv will not be able to find source. of course Fios blames Samsung and Samsung blaming Fios.
Any advice?

Didjit011

I had the same issue with a cheap SuperSonic TV. The two wouldn't connect unless I rebooted the mini. But if I turned the TV off and back on I'd have to reboot the mini again.

The solution for me was to change the mini's output from 1080p to 1080i.

That's it! Hope it helps someone out there.

ADoug129

I’ve called vizio and had a Verizon tech come months ago. Vizio says that something with Verizon’s boxes are not compatible with their TVs. Verizon tech couldn’t figure it out after being here 2 hours. He was stumped. Said he’s never seen a problem like this. I had to switch to a main box on one of my vizio TVs but now the Verizon remote won’t work for volume or power no matter how many times I program it. My other vizio tv, flashes about 30 times before it plays trying to figure out what audio to use with Fios configuration. It’s the worst ever.

Bowlingpro765

I just experienced the same issue. Had a mini hooked up to my Vizio and my main hooked up to a Sony. One day the mini stopped working, went through 3 replacements until I realized it’s bc the mini isn’t compatible. I ended up switching my set top boxes (hooked up mini with Sony and main with Vizio) and now everything works fine. Wish Fios customer service new about this nuance but happy it’s working now

billmunoz

I had the same problem, and called Verizon tech-support. Apparently, a memo just came out with a solution. It’s a Vizio TV problem. Here is the fix:

1. use your Visio remote

2. press the menu button

3. Select “input settings

4. scroll to the input used by your Fios cable box (usually HDMI-1). Select that.
5. scroll to Full UHD color

6. turn it “on”

your picture should come on. Simply press “exit”

that should do it!

Krryan7777

How do you turn on full uhd color on tv? It won’t let me select it

Krryan7777

OMGgg thank you SOOOOmuch! It works now!! Saved me 100$! Thank God I googled this

it’s been so annoying for a week trying to figure this out.
disreguard the above question, I figured it out. Shame on Vizio

Ccanino53

@Krryan7777 wrote:
OMGgg thank you SOOOOmuch! It works now!! Saved me 100$! Thank God I googled this
it’s been so annoying for a week trying to figure this out.
disreguard the above question, I figured it out. Shame on Vizio

Several people on the Vizio website have the same issue. Vizio should have made UHD color the default on their TVs, instead they chose standard HD as the default, causing problems with 4K external sources.

WilliamsFam1

This was very helpful. I literally unplugged everything, factory resets and this, in just 5 secs did the trick.

thank you.

Jc-Va

Yep, that fixed my problem!!! Thank you!!!

Chauncey1

Just set up my new mini box on an old toshiba tv. Worked fine for a few hours, then the no signal appeared on the screen.After going through several steps with no success I decided to disconnect everything than reconnect, success, the tv is working fine for now.

Kc441

I tried this and it worked for me:

1. Unplug the HDMI cord from the tv.

2. Unpug the power cord from the power source.

3. Press and hold the power button on the remote for 3 seconds.

4. Plug the HDMI cord into the tv.

5. Plug the power cord back into the power source.

6. Power on the tv and change the input to the HDMI that you plugged into.

7. Be patient. It takes a few minutes to load but then it should be working.

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