All of my cable channels from ch 13 up are not working it's jus showing a blue screen

I am unable to see at a glance how to correct this but it is between its menu, channel and volume buttons to alter the settings it may be worth to run through the re-tune sequence below?


To preset a channel or to change a preset channel, follow the procedure below.
1) Press the POWER button to turn on the TV.
2) Press the MENU button so that the menu display appears
on the TV screen.
3) Press the CH(annel) ? or ? button to point to "CHANNEL SET".
Then, press the VOL(ume) ? button.
4) Press the CH(annel) ? or ? button to point to "AUTO PRESET CH".
Then, press the VOL(ume) ? button.
The tuner scans and memorizes all active channels in your area.
? The TV distinguishes between standard TV channels and cable channels.
? When AUTO PRESET CH action is completed, the lowest memorized channel reappears on the
screen.
? When you press the CH(annel) ? or ? button after selecting "AUTO PRESET CH", the tuner
will stop at the memorized channels only.
? The TV may recognize TV channels to be CATV channels by the receiving conditions. In this
case, try AUTO PRESET CH action again in the fine receiving conditions.
? When AUTO PRESET CH is activated where there is no TV signal input,"NO TV SIGNALS"
will appear on the display after the completion of channel scanning.
[ADD/DELETE FUNCTION]
1) Press the MENU button so that the menu display appears on the TV screen.
2) Press the CH(annel) ? or ? button to point to "CHANNEL SET".
Then, press the VOL(ume) ? button.
3) Press the VOL(ume) ? button so that "ADD/DELETE" is selected.
4) Use the CH(annel) ? or ? button to select the
channel you wish to put into memory or to erase from memory.
Note: The menu will disappear in about 10 seconds.
Perform "ADD/DELETE" function while this display appears on the
screen.
? Press the VOL(ume) ? or ? button to light up the channel number
in LIGHT BLUE if you wish to add the channel into memory.
? Press the VOL(ume) ? or ? button to light up the channel number
in LIGHT RED if you wish to erase the channel from memory.
5) Press the MENU button to exit the menu.

Hope this helps.

ck menu for air or cable settings,air will get all cannels cable stops at ch 13

it sound like your blue background is on! I not familiar in your t.v. model but try to turn off the blue background in channel settings I think!

I went to an online manual and reset the channels.

Well after playing around with the tv some more, I decided the problem was probably the cable jack, and tried running the video in/out cables thru the VCR to get around this, which I read generally works but in this case nothing. I had tried the tv on various settings, anytime I put the tv in "video" mode I'd get a blue screen and nothing else. Anyway I found a switch in the back of the Direct Tv box for ch. 3 & 4 settings. So I flipped it but still got a snowy picture, only this time it was on ch 4 instead of ch 3. By sheer accident I put the tv back in video mode while I had the satilites setting to ch 4, and the picture came up crystal clear. Since I didn't mess with it further, I'm not sure if it was the channel selector or the fact that hooked the tv up via the video cables, but whatever it was it did the trick.

I just KNEW this could not be a broken tv despite the fact that everhwere I read online suggested it was. I knew pictures can go out, or sound can go out....but to have BOTH go out didn't make sense to me. Anyway, glad its working! :)

Make sure in the on screen menu that the tuner is set for CABLE or AIR depending on whether you have cable or an antenna. The channel frequencies are the same for ch 2 thru ch 13 but everthing above that is different depending on your source.
Hope Ya Fix It!

Make sure in the on screen menu that the tuner is set for CABLE or AIR depending on whether you have cable or an antenna. The channel frequencies are the same for ch 2 thru ch 13 but everthing above that is different depending on your source.
Hope Ya Fix It!

Your tuner settings must be set on broadcast instead of cable. Below channel 13, they use the same frequencies so it doesn't matter. Find the tuner settings page in the menus and change the cable/air setting.

First check and see if you are on Cable or Ant. It sounds like you are on ant. Change it to cable. If you are on cable then it's you tuner, you need to replace it.