I have a dynex tv with basic cable coaxle plugged in. It receives around 20-25 channels after running auto scan with the source as "cable". After powering the tv down and then back on it defaults to "air" and none of the found channels are stored. I must change it to "cable" and run auto scan again. Any ideas?

Do you have any other devices in your setup (cable box/modem, satellite, receiver, gaming consoles, etc)? What type of connection are you using (HDMI, composite/component)? Are you trying to obtain additional channels through a cable scan, or through basic antenna?

for some reason it is not seeing you cable signal. you will need to make sure you have it set up for cable and not air. check your input options, like tv/av/hdmi/ ect hope this helps

you need to select cable from off your remote and run the auto scan.even if it says you does not need to run auto scan still run the auto scan.good luck.

Check this link to download the user's guide or quick setup guide. Press menu > channel, go down to TV source change it to cable and go down to auto scan and press > to start programing the channels into the LCD memory.

Hi I Just Bought A Dynex 32 Inch HDTV. I Did A Auto Scan And It Didnt Pick Up Any Digital Channels? Am I Suppose To Have An Antenna Or Digital Box? How Do I Get Th Channels To Come In?

Found this in the most frequently asked questions at the Dynex customer support website on page 3. the website is:(http://www.dynexproducts.com/pc-680-23-dynex-32-720p-flat-panel-lcd-hdtv-matte-black.aspx) You can also call the customer support telephone number at 1-800-305-2204. between the hours of 7am-12am CST. Give them the model number of you television and tell them you are having problems completing the autoscan of the television. I hope this information helps you with your problem. 1.How do I set up my channels or run an autochannel search? 2.Are you using a cable/satellite box, cable connected directly to the TV, or an antenna? 3.If you are using a cable or satellite box you must use the remote that came with that box to change channels. 4.Make sure you have the correct input selected to view channels via the cable or satellite box. For example, if the cable or satellite box is connected via component cables please press input and select Component 1 or Component 2 to view your channels. If you are using cable connected directly to the TV: 1.Press MENU. The on-screen menu opens. 2.Press < or > to select Channel, then press v to access the Channel menu. 3.Press ^ or v to select Air/Cable, then press < or > to select Cable. 4.Press ^ or v to select Auto Scan. Press > or ENTER. 5.Press ^ or v to select Cable System, then press < or > to select your type of cable or satellite system. You can select STD, IRC, HRC, or AUTO. If you are not sure what type of system you have, select AUTO. 1.Press ^ or v to select Start to Scan, then press > or ENTER to start scanning. Your TV memorizes all cable channels you receive. If you are using an antenna: 1.Press MENU. The on-screen menu opens. 2.Press < or > to select Channel, then press v to access the Channel menu. 3.Press ^ or v to select Air/Cable, then press < or > to select Air. 4.Press ^ or v to select Auto Scan. Press > or ENTER. 5.Press ^ or v to select Start to Scan, then press > or ENTER to start scanning. Your TV memorizes all analog and digital channels you receive.

What you have to do it go to the TV Menu and go to channel. Then go to channel scan and do one of those. THe problem is that is just doesnt know where to look for channels, but a quick scan will fix that.

Hi, A couple of possibilities: 1. Line loss, some of the cables might be too long, shorted, loose ground, not connected right; 2. Splitter - passive splitter, you might be better off using a distribution amplifies (with gain control pref); 3. RFI - TV interference from external sources. Hope this be of some help/idea. Post back how things are or should you need further information. Good luck and kind regards.