Hisense TV No Signal — How to Fix

What Does This Error Mean?

A Hisense TV showing No Signal is almost always on the wrong input source — it is looking at an HDMI port with nothing connected, or the antenna/cable box is not powered on. Press the Input or Source button on the remote and select the correct source. If using an antenna or cable, check the physical connection and rescan for channels.

Affected Models

Hisense U8K
Hisense U7K
Hisense U6K
Hisense A6K
Hisense R6 Series
Hisense Roku TV

Common Causes

The TV is set to an HDMI input with no device connected or the device is off
The cable box, satellite receiver, or Blu-ray player connected via HDMI is powered off
The antenna cable is loose, damaged, or the aerial signal is weak
The cable or satellite subscription has been suspended or the box needs reactivation
The TV was switched to the wrong input after a remote button was accidentally pressed

How to Fix It

Press the Input or Source button on the remote and cycle through the inputs until you reach the one your device is connected to.

On VIDAA OS, the Input key opens a source list. On Hisense Roku TV, press Home and choose the correct input tile.
Confirm the connected device (cable box, console, streaming stick) is powered on and showing its own output.

A device in standby mode does not output a signal. Power it on fully and wait 10 seconds before checking the TV.
For antenna or cable: check that the coaxial cable is firmly screwed into the TV's antenna input. Try a different cable if available.

A loose coaxial connection is a very common cause of No Signal on the antenna/cable input.
For antenna: re-scan for channels. On VIDAA OS: Settings → Channels → Auto Scan. On Hisense Roku TV: Settings → TV inputs → Antenna TV → Scan again for channels.

If you have recently moved or the TV was reset, a new channel scan is required.
Reseat the HDMI cable at both ends and try a different HDMI port on the TV.

A loose HDMI cable produces a No Signal screen even when the source device is on and outputting correctly.

When to Call a Professional

No Signal is almost never a TV hardware fault. If every input shows No Signal including inputs with connected, powered-on devices and confirmed-working cables, the TV's HDMI chip may be faulty. This is rare and requires professional diagnosis.

Frequently Asked Questions

My Hisense TV says No Signal on every input — is the TV broken?

Before assuming a hardware fault, confirm each source device is powered on and its cable is firmly connected. Try a known-working HDMI device (like a laptop) on each port with a different cable. If nothing produces a signal, the TV's HDMI system needs professional diagnosis.

No Signal appeared after a power cut — how do I get the picture back?

Power cuts can cause the TV to forget its last input and default to a different source. Press Input and select the correct source. For cable and antenna inputs, a power cut may have interrupted the cable box — unplug the box for 30 seconds and restart it.

Antenna TV was working and now shows No Signal — did the channels change?

Over-the-air broadcast frequencies are periodically reassigned. Run a fresh auto-scan from Settings → Channels → Auto Scan. This often restores channels that disappeared after a frequency repack in your area.