I am using a Comcast Motorola HD box with component cables. I can get regular channels no problem, but when I switch to an HD channel, it's scrambled. I can hear the sound though. I have switched out the cables, tried calling Comcast and Mitsubishi, but no luck so far. Any suggestions? Thanks.
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Re: HD Picture is Scrambled, but Has Sound
A Sure fire way to fix this is to see if your cable box has a HDMI output and your TV has a HDMI input. If they both do , get a HDMI cable to solve your resolution issues. A plus for this also is better signal quality than component cables. Also, the HDMI carries audio so no need for the RCA cables.
If your cable box does not have a HDMI- go to Comcast and trade it for on e that does. Should be free.
I had the same problem
you have to set up the componant on DTV.
the signal my be hd 1080i and the only connection with componant that can support this is the DTV port.
the other componant connections only support 480,
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o.k. check all your connections
if you have a newer house check to see if you have a main hub in a
closet somewhere and check all connections. Check your hd receiver and
you may be able to chage the DPI the receiver receives in.
I have this problem on some of my non HD channels, also. So much for going digital. I get fuzz and pixel problems "from time to time", but, if it is really bad and consistent your should call your service provider.
Things to ask also ? are you using cable or satellite.
If satellite T.V. there are other reasons you could be experiencing problems.
To get an hd picture you have to use a digital input and this cannot be done by simply turning it to a channel. You need to hook up your HD receiver (box) to your tv using either an HDMI or a Component which will be a cable that looks similar to an rca but there are three of them and the colors are bed blue and green. If there is a red, blue and green on the back of the cable box and the tv hook them together with a component cable and then find the input on your tv that correlates to the compnent connections and then even after all of this you need to be tuned into a channel that is offered in high definition and if you have cable like I do the high definition channel will be a seperate channel from the regular one. Comcast in my area puts the HD's from channels 400-500. For example my espn HD is channel 403 but just regular espn non HD is on channel 27 in my area.
So, You have Five cable leads, The rgb get plugged into there corresponding colors and the other two are your Red and White Audio Input ------Correct? You do not use the in4, that is for a pc with horiz and vert sync. You use input 1 rgb and plug the red and white into the audio input.....your done!
there should be 3 sets of video rca jacks on tv or receiver they might have put them on the wrong rca jack in which they just need to be moved over
usually the 3rd set of rca jacks are component jacks not for tv or video but for low output signals say like cameras and only one set of rca's can be used at a time svg on one of them rca's will over power the vid's. so have no picture
Had this happen on a Comcast box (Motorola DCT 6416 III)
Here's how to fix it:
Turn the cable box off, leave fully connected. Press Menu on the remote
The cable box internal menu will display (Not the Comcast one the Motorola one-- i.e. Display ratios-16:9 etc It's in black and white)
Use the arrows to cursor to the Closed Captioning and toggle to "Disabled" Press Manu again to exit and Voila!
This may indicate a problem with the RF tuner. When you are using the DVD player is the output of the DVD using the F (RF Coax) Conncetor or is the DVD connect to the TV using the Video/Audio cables (either Composite (Red, White, Yellow) or Component (Red, Green, Blue)). I am do however believe this to be a RF tuner problem. Make sure that the TV is set to channel 3 and the cable box is connected to the TV (set to channel 3). What you could also do is get digital cable and use the video output jack as the input to the TV on one of your aux positions.
I would first make sure the tunner is on channel 3 when using the regular cable box, or if you are using the TV's cable ready features make sure the tunner is working correctly, this might have to be done by a qualifide TV repair person.
i know this problem, happened to me with the comcast Motorola HD receiver box. The key is with the setting in the cable box.
Switch on the TV.
Set the channel to normal tuner channel 3 or HD input.
Turn off the cable HD box.
Press the Menu Button on the Cable box or the remote.
You should see a Menu.
Use the cursor keys to navigate
The default setup is also one of the option, Right click on your cursor keys acts like the computer keyboard enter key and applies the change.
The default setup is 16:9, the shacking would happen if you have set the picture type to "PAN SCAN". change it to either 16:9 or 4:3 Letter Box. The shacking should stop.
Hope it helps.