There were not much info in the manual but it did suggest trying this.
1st- Unplug for a few minutes and then plug it back in. Or use the reset button look it up in the manual. MANUAL
2nd- Blank screen troubleshooting
• If you're trying to watch TV, change channels or press the ANTENNA button to switch tuners.
• If you're trying to watch something that's playing on a component connected to the TV (like a DVD or a VCR tape), press the TV
button on the remote, then press INPUT until you get to the correct video input channel.
• If you're trying to watch a component (like your DVD player or VCR), make sure the component connected to the TV is turned on.
• If you're trying to watch a component (like your DVD player or VCR), make sure the component is connected correctly.
Post back if non of these ideas work and explain if there are any lights flashing or changing colors on the front where the green light usually is. A fixya rating would be appreciated, thank you for stopping by Fixya!