How to Fix a TV With No Signal

By Nina Nixon

At times, your TV may not respond when you press the power button on the remote control or TV control panel. Without a signal, the screen may appear blank or display digital noise. One of several circumstances could cause a TV to lose a signal. Resolve the source of the problem to restore your TV signal.

Step 1

Press the "Menu" button on the remote control. Select "Setup." Use the arrow buttons to make your selections and select "Input Source." Select the input source of the device you want the TV to operate. Typically, "HDMI1/DVI," "HDMI2," "Component1," "Component2," "RGB-PC," "AV1," "AV2" and "TV" or are available. Press "Exit" when finished.

Step 2

Run an auto channel scan to tune channels if your TV. Press the "Menu" button on the remote control. Select "Setup," then "EZ Scan." Press "Enter" to begin the scan.

Step 3

Check all TV, antenna, cable and device connections and verify that each one is secure.

Step 4

Verify that the correct cable types are used with the devices connected to your TV. Refer to the device and TV user guides for the recommended cable specifications.

Step 5

Turn off and unplug the TV and all connected devices. Wait two minutes and plug in the TV first; then plug in the devices.

Tips & Warnings

  • Use input labels to recognize devices that are connected to your TV. Press the "Menu" button on the remote control. Select "Setup," then "Input Label." Select the input source that matches one of your device connections. Choose from "RGB-PC," "Component1," "Component2," "AV1," "AV2," "HDMI1/DVI," "HDMI2," "TV," or other input source. Select input labels for all of your connected devices. Press "Exit" when finished.