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If you have a cable TV line connected directly to the TV, an antenna or a cable box connected by coaxial cable, I would suggest running the automatic channel scan (AUTO-PROGRAM) again:
1. Press the AV key on the Advent remote control repeatedly until TV is displayed in one corner of the TV screen. If you don't have the Advent remote, use the TV/AV button on the front of the TV. 2. Press the MENU key on the advent remote or the front of the TV to open the on-screen menus. 3. Use the CH+/- keys on the remote or on the front of the TV to highlight PRESET then press VOL+ to select. 4. Use the CH+/- keys on the remote or on the front of the TV to highlight ANTENNA then use the VOL+ key to select either AIR (for antenna) or CABLE. 5. Use the CH+/- keys on the remote or on the front of the TV to highlight AUTO-PROGRAM then press the VOL+ key to start the automatic channel scan.
Once the channel scan is complete, the TV should automatically return to viewing the first channel found during the scan. Do not press the MENU key during the scan or the scan will not complete.
If you are using a cable/satellite receiver and it is connected to the TV by any means other than a coaxial cable, you do not need to run the channel scan. You should simply select the correct AV input using the AV key on the remote or the TV/AV key on the front of the TV (see step 1 above).
If you have done all of the above and you are still unable to get the channels on your TV, please post back for further assistance. You can reply to me by clicking on "Add a Comment" below your question. Please let me know whether you are using a direct cable line, antenna or cable box, etc.
You only can get,what is in air broadcasting shows signals,u can't changes the signal modes format.You getting those shows in modes 1080i or 1080p.The shows have a display said HD logo on right side or left side of the tv.U are getting a HD air broadcasting signal.
More information is required. Your backlight is lit (screen not dark) but I need to know what you have connected to the TV (your sources) and how they are connected. Does the menu/OSD (on screen display) work?
Very likely a power supply problem.
Most modern sets monitor power supply performance continuously and if a higher drain circuit is drawing excessive juice, they are designed to shut down to avoid burning down your house.
After all, no house, no new TV needed -
I would be sniffing around the top vents on the set to detect possible 'hot' odors coming from it.