Solution to the problem of no signal in TV set and matters needing attention in connecting set-top box

No signal on TV is a common problem, which may be caused by poor video line contact or wrong signal source setting. This article will provide you with a solution and introduce the matters needing attention when connecting the set-top box to the TV.

Reconnect the video cable.

If there is no signal on the TV, it may be that the video cable is in poor contact, so just reconnect it.

Set the signal source correctly

The signal source may be set incorrectly. Just check and reset it.

TV screen cable failure

If it's not the video cable or signal source, it may be the cable fault on the TV screen. It is recommended to seek the help of professional maintenance personnel.

Connect the set-top box to the TV.

When connecting the set-top box and the TV, it is necessary to pay attention to connect one end of the white cable to the cable junction box and plug the other end into the signal input port at the back of the set-top box.

Using AV composite video line

Connect the AV output port of the set-top box with the TV correctly by using the AV composite video cable, and ensure that the cable color corresponds to the interface one by one.

Switch to AV channel

Start the set-top box and TV, switch to AV (video) channel through the remote control, and the set-top box startup screen will appear.

Check RF input signal line

Check whether the TV RF input signal line is connected to the RF input port or junction box of the set-top box.

Check the set-top box information and indicator light.

Check the screen display information and indicator light of the set-top box to ensure that the red power light is on and the green or yellow signal light is displayed normally.