My Roku TV says No Signal on every HDMI input. I've tried different cables and different devices. Nothing shows up.
If all HDMI inputs show No Signal even with different cables and devices, the issue is almost certainly with the TV itself, not the external devices. Try a full power reset: unplug the TV from the wall (not just the power strip), wait a full 60 seconds, then press and hold the power button on the TV itself (not the remote) for 10 seconds while it is unplugged. This drains residual power from the TV's capacitors. Plug it back in and try again. Also check if the TV is stuck in a specific input mode. Press the Home button on the Roku remote to go back to the Roku home screen. If the Home screen appears, the TV itself is working — the issue is specific to HDMI input recognition. Go to Settings, TV Inputs, and make sure your HDMI ports are enabled. Try renaming or refreshing each input. For TVs with CEC (HDMI-CEC or Anynet+), try disabling it: Settings, System, Control Other Devices (CEC), turn off CEC. This feature sometimes causes conflicts that make the TV ignore HDMI inputs. If the Home screen does NOT appear and you only see No Signal on every input, the TV's main board may have failed. A factory reset using the physical reset button on the TV (usually a pinhole on the back or bottom) is worth trying before considering repair or replacement.
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