A remote that doesn't work can ruin your day. But before running to the store to buy a new one, you can try some troubleshooting techniques. Troubleshooting your Daewoo TV remote doesn't take long or require any technical experience.
Press the "TV" button and then press the "Power" button on the remote. If the TV turns on, your remote was just switched off of TV mode.
Reprogram your remote to your TV. Universal remote controls can be accidentally unprogrammed by sitting on the wrong combination of buttons or having the batteries disconnect from the inner connections.
Unplug the TV from the electrical socket for a few minutes and plug it back in. This will reset the TV in case a power surge caused the TV to become "confused."
Replace the batteries with new ones. Do not use old batteries from a different device in your house because if the batteries do not work, you won't be able to determine anything because those batteries may not have enough juice to power the remote. Keep in mind that different devices have different needs, so the batteries may have had enough power for something else to work but not enough for your remote.
Check the batteries to see if they are inserted in the right direction. It's possible that someone dropped the remote, the batteries fell out and then were inserted incorrectly.
Press the "Power" button on the TV set to determine that the TV is not dead. A dead TV will not turn on from a remote.
Program the remote to another TV. If the second TV works from the remote, the problem is with your TV's remote signal receiver.