Dynex lcd wont stop channel surfing

SOURCE: tv wont stay on channel

This TV actually has bad buttons I've seen many of them, usually those switches never go bad but on this tv they do. The easiest thing to do is remove them, and use the remote, who uses those buttons anyway. You can slide out the circuit board and you will see the small switches in front if you can solder just remove remove them if not you can cut them out just be careful none of the pins remaining in the board are touching one another.

SOURCE: Tv wont stop changing channels

ok, Sony had this issue on their early production. The problem you are having is called a leaky switch. The volume down switch on the TV is leaky. To fix this you must replace the switch. This part is called the switch block. Part number 1-473-549-21

Average cost $26
Best regards
Circuitcity

SOURCE: Channel keeps changing

It sounds like a stuck button or switch. What happens when you hit the channel DOWN, does it still keep scrolling down?
Is this with or without the remote?
Have you tried it with the remote and or the TV?

Let me know whether you are changing the channels with the remote or the buttons on the tv and I can try to give you a couple more suggestions.
Mac =)

SOURCE: Dynex 32" 720 LCD HDTV - no channel listing after run auto scan?

Excuse me but the other answers are written by people who have not actually confronted the problem and are just guessing. They are all wrong. Here's the answer:

If your TV is expecting a TV input, it will keep searching for at least one TV channel on cable or antenna. If you only have a DVD player plugged in, for example, or if your cable is hooked up wrong, so there's no video signal on it, the TV will keep searching forever. (This is an unforgivable design flaw, by the way. But then, it was a cheap TV, wasn't it?)

To solve the problem, look at your remote control. You will find input buttons. Mine are small, along the top, right under the "power" button. Try pressing "video" for example, instead of TV. That stops the TV from hunting for TV channels.

Have a merry Christmas. Enjoy your new TV. Watch it in moderation and eat fruit and vegetables every day.

SOURCE: need code for Dynex/DX-l42-10A for Dish Network

I know you've probably figured this out by now, since you posted last May, but I figured I would post the solution, since I just found it, and someone else may want to know.
I bought one of these sets the day after Christmas 2009, and finally figured out the code that works with the Dish Network 5.4 IR remote.
I did a Code Scan, and found that the code that works is 721. In the Dish Network listing, this is listed as the third code for Sansui.

Hope someone finds this useful, even if it's too late for you.