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Select the input channel for your Fire TV - Turn on your TV and select the input channel for the HDMI port you used to connect your Fire TV. You should then see a loading screen with the Amazon Fire TV logo 4.
First off, D12-100 is your direct TV Box, Not your TV. A D-12 -100 direct tv box is not an HD box and will only connect to your tv via a coaxial cable or av jacks (red, white, yellow).
If you have lost your remote for your tv and your direct tv remote does not operate it, then you should be able to find the manual buttons on your television somewhere along the edge of the screen.
Toggle inputs till your on "TV" then use the channel selection to toggle it up or down till it's on channel 3 or 4 for Direct tv, If that doesn't work toggle inputs again and try the AV inputs. And of course if you want to use another device toggle inputs to HDMI 1 or 2.
Have you tried to push the tv input button? Sometimes when a button is buy accident it changes the input on the tv. Hope this works, let me know. Good luck, Toni
That situation clearly indicates that no signal is coming to the set in its present setting. Have you checked to make sure that the tv's input is set on the right input setting. Mine always defaults to "Antenna" which drives me nuts cause I get that big blue screen with "no signal". It seems to do that at the slightest provocation, too. After 5 years, I still have to think twice before checking it. If that is not it, make sure that the cables are plugged in. If that doesn't fix it try another type of input such as HDMI or S video, composite, etc - one that you are not using. Don't forget to switch the input to it. Good luck!
If
your television is displaying a blue screen or no signal message and
then turning off, your TV may be at an inactive input. Here's how you
can get back to watching your TV: 1. Powering on your
TV and press the INPUT button on the VIZIO remote control repeatedly
until a picture re-appears. 2. If this does not work, try again but press the button slower this time.
Sounds like you mabe be on the wrong source. Try hitting the input button on the side of the set to change inputs. Input channel up or down find tv hit input again. If on the wrong input you will only get a blue screen and message no signal that will apear for a few seconds.
First try another signal input like a DVD player or other source, is the signal displayed ok? Then you have lost the signal on one input from whatever the device is.
You need to replace the surface mounted voltage regulator IC (small black square chip with a metal tab on one end, and two legs on the other end.) it is on the main board, right behind the signal input board. It's a BA09FP regulator IC, you can purchase this on mouser.com
it requires a bit of disassembly, but it is relatively easy to do. it is component number IC9C25. It could be bad, or just have bad connections . This IC supplies 9 volts to the terminal board. Try resolding it first.
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