As of a couple days ago its stuck on the TV guide channel ( channel 99 ) the remote buttons aren't stuck I tried rebooting the cable box scanning channels and its not working
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Sounds like a bad mainboard
SOURCE: TV gets stuck on channel, won't advance past channel 7.1
Background:
I'm assuming you have Cablevision. This is becoming a known problem with their broadcasting system. They have been upgrading since last thursday and it has been causing the Sharp TVs to freeze up on channel 7.1. There have been reports of channel 21, 21.1, and 24 as well.
Simple way to fix it:
1. Unplug tv
2. Unplug coax from tv
3. Plug tv back in
4. In the Menu go to Setup > CH setup > CH Memory > Cable (digital)
5. Enable channel skip for channel 7.1
6. Push Menu to exit
7. Change to any other channel
8. Reconnect coax to tv.
Followup:
Avoid channel 7.1 and go give Cablevision a call and let them know about it. They won't do anything to fix it until they get a certain number of reported issues about the problem. Enjoy.
SOURCE: Emerson 20 inch flat screen tv problem
i had the same problem with a 32 inch and i kept "clicking" the channel changer on the remote to force the tv to go to another channel (that had previously been selected during the initial auto scan) --- still trying to figure out why the tv locks onto the scanning for channel
SOURCE: Sony HDTV flat - no picture with HDMI cable and Verizon FIOS box
Probably a handshake problem with the cable box. It is common for cable boxes to have HDMI handshake problems. Hook the box up using the component cables and you should be fine
SOURCE: TV stuck on one channel
Remove batteries from remote, and test again the touch buttons on TV with remote batteries out. This to exclude the possibility that remote has a stuck button.
If the problem persists , then it is probably a faulty IR board on TV (the one that gets IR signal from remote), or a faulty touch button switch.
SOURCE: I lost the remote and cant find a universal that
you can go to menu options, than find programming options.
Look for an option called "autoprogram" and select it. It will search and set all available channels.
There is universal remotes for this tv that you can find by googling "elements electronics remotes":
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