Out of no where my Vizio won't show cable, Blue Ray, or shows on Roku. One of the HDMI ports hasn't worked well for awhile so would have to switch HDMI ports to watch Roku or Blue Ray, but overall worked ok. 2 days ago can't get anything to work. Hand I first turn on Blue Ray main screen that says brand name shows up then goes black also can turn Roku on & browse through shows/channels/movies but when I try to play anything a pale purple screen says HDCP UNAUTHORIZED can hear sound but no picture. Cable tv doesn't show anything not even tv guide. Tried different HDMI cords & even bought 2 new cords....still nothing..TV is about 3 yrs old. Any ideas?

SOURCE: TV wont detect HDMI Devices except a pc.

Something is wrong whith the HDMI jack it's self, or the electronic switching is not sensing a signal is present. In either case the board that has the HDMI jack you are using needs to be replaced. Most all these boards are double printed, Multi-layered or both which prevents replacing the jack it's self. I do have a question though, do you only have on HDMI jack on the unit or do you have another one available.

SOURCE: HDMi ( no signal, not supported) doesn't work with Dmr-Ez47v

Return set!
Akai Tv is not HDCP compatible. Nothing worked akai was not very helpful. This model , a 2006. aparently will not communicate will the newer HDMI devices.
RETURN SET IF POSSIBLE. NO SOLUTION FOR THIS PROBLEM!

SOURCE: Vizio 37 inch lcd

I haven't had any problems with my VIZIO, but I have had several really good experiences with their service people, so I would recommend calling them up. They have great product guaranty and if for whatever reason you got a defective item I'm sure they'll help you out.

Jeff Towle

• 14 Answers
• Posted on Feb 04, 2010

SOURCE: I have a VIZIO LED/LCD VF551XVT hooked up to a

I have the same set, same problem with one of my MOTOROLA boxes, but not with another. I have a SONY TV that works fine with this new MOTO box, but the new VIZIO does not. The audio is coming through the HDMI cable just fine, and the fact that it works when you cycle power on your TV means it's the SYNC between the TV and the BOX. I have the identical problem and am taking back the MOTO box for another one. I spoke to VIZIO for about 45 minutes trying different things. They think it's the MOTOROLA box, COX (my cable company) thinks it's this particular box, who knows.

SOURCE: "No signal" sign on TV screen using HDMI selector

it sounds like a refresh issue, double check you selector and make sure it fits the refresh of the tv. i had this once with a sharp where the tv was 120hz and the selector was 60 and it created a no signal and when it did come in it was jumpy. if you have a 120 tv then selector should be the same.