Hi - when changing channels or accessing recorded shows from DVR - this is occasional but often enough to be a problem - We get scrambled TV image & the only cure is to turn TV off and on. How can i resolve this?
What setting is the box on? Is it on native resolution? If so try changing it to 1080
Thanks for responding. It is on 1080, we still have the problem. Changing channels, pausing and restarting, accessing DVR recordings. every 3rd time the picture scrambles and we turn off / turn on to resolve. This has started last 3 months, we have had FIOS for over a yr.
Two comments. Are you using HDMI or Component Video? If you are using HDMI, try Component Video. It may be a HDMI handshake issue, or possibley even a cable issue. Have you tried a different HDMI cable if that's what you are using.
Generally the scrambling of the picture is due to loss of lock on the Horizontal Oscillator frequency. In Component Video I believe the synch signal is on the 'green' channel.
The TV needs to synch up with that signal in order to present a picture. So my suspicion is the issue is the Television. I know that my TV occaisonally breaks 'lock' on pictures that are almost entirely pure maximum brightness white. The high signal amplitude makes it more difficult to spot the synch pulses. The TV relocks as soon as the picture changes....
Hi -Thanks. I have no idea how to do this- but I am glad to give this a try. Can you tell me where or how to do this on the TV? What is the green channel and what is component video? The TV is not new yet this problem only began 2 months ago. We have had verizon fios for over a year.
Your HD TV is almost certain to have Component Video inputs.Component video delivers the HD picture content via 3 separate cables, one each for Red, Green and Blue signals.
It is a matter of finding them, and connecting them to the component video outputs on the STB. The connectors are typically color coded as red,green and blue, and often labeled as Y/G, Pb/B and Pr/R.
You will need a component cable set (which Verizon may or may not have left you with when the STB was installed, otherwise you can buy them, or perhaps the local Verizon store will give you a set.) There are 3 RCA connections (or 5 connections if the cable includes Audio) on each end, and you must match up the labels on both ends. Often the ends will be color coded in red, blue and Green. Green goes into the Y/G, Blue goes in Pb/B and Red goes in Pr/R. That provides the Red Green and Blue video signals.
Unlike HDMI, the audio is completely separate when component video is used, so you will need to run either another set of RCA cables (or the 2 remaining cables in the Component video set if it has 5 connections) from the Audio outputs in the back of the STB, usually labeled Audio and color coded, one will be red the other will be. Connect the White Audio cable to the White Audio output on the back of the STB, and connect the other end to the corresponding White connector next to the component video input on the TV, repeat for the Red on the back of the STB to the rec on the TV. This will provide the left and right audio.
Once this is complete, you will need to switch the input on the TV from HDMI to the AV input that are using.
There is also a yellow jack on the back of the STB, and probably on the back of the TV, This is composite video, and is not used when component video is in use.
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