HDMI INPUT FOR NON HIGH DEF CHANNELS WILL NOT DISPLAY FULL SCREEN
I just purchased a samsung ln46a650a1f lcd tv. The HDMI input displays HD channels in full screen mode ok. When viewing an non HD channel it displays the screen with blank areas on the left and right side of the screen. This would be normal for a non HD signal on an HD channel but shouldn't non HD channels be converted to full screen. I have to use AV1 input to get full screen on non HD channels. The set has a wide screen option, but that distorts the picture size somewhat cutting some of the picture off. I also have a 27 " sony LCD Bravo and it converts the non HD channels to full screen through HDMI input with no problem.
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Is this a high def tv? Are you using an hdmi cable, component cable(red green & blue) or a low def coax cable to connect the tv? If coax, the tv needs to be on channel 3 or 4. If hdmi or component cable is used you need to change your input on the tv with your remote to the matching input you wired it to. The uverse stb (set top box) changes the actual channels once you have selected the correct input.
If you are connected to a high definition cable box or satellite tv box you would not need to turn to channel 3 on your television. The television would need to be in the right input either component or hdmi. If someone connected the tv to the cable box or satellite tv box with a coax cable like an antenna cable then the tv channels will be available on channel 3 as well but they will not display in high definition. You change channels with the cable box/satellite tv box remote control. If the above is not correct and you are only connected to an antenna cable and not to a cable box or satellite tv box you will need to complete a channel search from the tv menu. It sounds like you are using a cable box/satellite tv box and that the tv is on the wrong input. If the cable box/satellite tv box is not working (i.e. just a black screen) on your television than that is a different matter entirely.
From what I see it only has a Standard NTSC TV Tuner just like old TV's had so it won't receive any new digital or HD channels if you choose to plug your Cable 'Coxial' RF input directly into the RF Tuner input. The specs say it will display 720p the lower formatted HD signal but with an Analog NTSC tuner I don't see how it can display it for you. The only high resolution input you have is an S-Video input that you could connect up to a Cable box with but again S-Video isn't going to give you High Def only the lower 480 lines of resolution. So to answer your question. It you wish to view any digital channels 'yes' you will need a converter box for this TV. Blessings, A/V Media Guy
I have a Vizio. If I use the HDMI input I can only get normal and zoom w/ picture buttom on the remote but get full picture on all cable supplied HD channels but not on none HD channels. However, if I switch cable input, I have the TV set up with both inputs from the converter box, I am able to have the options of normal,panoramic,wide and zoom on all non HD channels. I don;t like the black bars top and bottom of the HD channels with this imput mode so I switch back to HDMI. Maybe your TV is simmilar.
Hi, first of all you need a high definition source. I'm not sure if your cable box is HD but lets take it as an example. The component leads which you are using isn't 'true' HD video quality, what you need is a hdmi cable from your source to your TV.
Your cable box maybe HD with a HDMI output, if it is then you need the lead to come out of the cable box into your tv's HDMI input using a HDMI lead. Then you switch your TV's source to the HDMI input and it then should be producing a HD quality picture, but to truly get the full HD experience you may want to subscripe to a HD channel or purchase a blueray player becasue most cable TV channels are upscaled to HD and the definition is not as good as on a blue ray disc or a true HD channel.
So in conclusion the cable and input you are using is not designed for HD input. I believe your TV is HD, check for HDMI inputs or DVI inputs.
I had the exact same problem on a brand new Insignia 26 " LCD with DVD. Comcast tech was able to fix it by changing the Comcast box diagnostics. Here is what he did. Using the Comcast remote with the TV on - press power, cable, menu in that order. A comcast diagnostic srceen will appear. Select Additional HDMI options, then audio options. Change the audio options to L-PCM. Press power again to exit the diagnostics. That will fix it and you get to use the HDMI cable.
Okay,i assumed this is what you have: HD cable box with HDMI cable connection to the Samsung TV. Listen careful as follow: First you want to make sure using the same HD comcast box with HDMI connection for our Samsung TV as well as your other TV.Be sure the other TV do received the missing channels from the Samsung TV.You must be SURE you have tested both TVs with the same HDMI cable with the SAME HD cable box. Now that you have confirmed the both TVS are using the same HD comcast box and the same HDMI cable but the connection that goes to the Samsung TV are missing some channels,at this point,use another HDMI connection behind your Samsung TV and see if you have the same problem.If so,please also try the left side of the HDMI connection and see if you could get the other channels. Let me know! solutiondoct
Unfortunately if you chose to view the non HD channels in wide screen format, you are going to have the top and bottom of the screen cut off. Eventually this will not be a problem when everything goes to digital. However presently non HD channels are presented in 3:2 ratio where as HD is 16:9, So your choice really is to view them with the lines on either side for now.
I do not have an answer for the white flickering lines.
To get the BEST picture out of your 1080p unit I highly recommend using HDMI cables to hook it up.
in order to get the full HD experience you should be using HDMI cables. if you're using the white/red/yellow cables then your HD channels will not broadcast in full HD and you'll be stuck with the annoying black things around your screen