How to Troubleshoot a TV

Thanks to solid-state circuitry, very little goes wrong with modern televisions. However, here is a troubleshooting guide that offers steps to determine where problems are coming from.

Things You'll Need

• Remote Controls
• Televisions

Instructions

1. Check the owner's manual before consulting other sources. Often, the possible problems are laid out right there, along with a troubleshooting guide.

2. See if the television manufacturer has a Web site with troubleshooting tips or FAQs.

3. Check all the connections - AC plug into the wall, cable television connection, input and output cables to other machines such as VCRs. Unplug or disconnect them, then plug them in again.

4. Look in the fuse/circuit box to see if the switch for the television's room is flipped, meaning that a fuse blew. If it did, flip the switch back to reset the fuse.

5. Check the remote control and replace its batteries if necessary.

6. Adjust the television controls, following advice in the manual. Incorrectly set controls can cause problems like sound but no picture and picture but no sound.

7. Test the setup of the cable television or VCR hookups by referring to their manuals. If you can identify which item is causing the problem, you can call the company's customer service number and talk with a technician.

8. Clean the parts of the television that are visible, but don't dig into openings. Make sure the television is unplugged from the outlet when you clean it.

9. Double-check the antenna if you have one. Replacing it or pointing it in a different direction may help solve the problem.

10. Take the television for professional service, if necessary. It's better than nullifying the warrantee or ruining the machine by attempting repairs yourself.

Tips & Warnings

• Make sure the television is not exposed to water or excessive moisture and that the area is well ventilated.

• Many problems have simple solutions. Don't immediately assume that your problem is complex. A TV problem may just be due to a bad connection or blown fuse.

• Plug the television into the power outlet to properly ground it. If you are unable to insert the plug fully into the outlet, try reversing the plug. Do not defeat the safety purpose of the polarized plug.

• Do not overload wall outlets or extension cords. This can result in a risk of fire or electric shock.

• If you get stuck, sleep on it. Sometimes, just letting the problem bounce around in your head will lead to a better approach or solution. Don't work on a TV when you are really tired. This is both dangerous and mostly nonproductive.