What if the projector has no signal?

The projector has no signal, which is a common problem in use. Here are some solutions.

Check the connecting line

Check whether the projector is connected to the computer with VGA cable or HDMI cable.

Adjust the resolution

If the connected device is a desktop, you need to adjust the resolution of the computer according to the resolution of the projector. Usually the refresh frequency can be adjusted to 60 Hz, and some are higher. It is best to try one by one, then turn off the computer, connect the projector to the VGA, and then turn on the computer.

Notebook switching display

If the projector is connected to a notebook, you need to press FN+FX (F 1-F 12) in the lower left corner of the keyboard. Generally, there are three modes to switch dual monitors. You can try it once, twice and three times at the same time.

Check signal source input

If it is a VGA connection, please check whether the projector selects VGA or computer mode. In the case of HDMI connection, please check whether the projector has selected HDMI mode, that is, the selection of signal source input.

Replace connecting wire

If the above operation is normal and the projector still has no signal, you can try a different cable.