What should I do when the TV may show no input source when the MAC/Laptop/PC/Xbox/PS5 is connected to the Smart TV?

Turn on the TV first, wait for the TV to display the main interface, and then turn on the MAC/laptop/PC/Xbox/PS5. Or Manually switch the input source to HDMI in the TV settings.You also can re-plug the HDMI cable on the MAC/laptop/PC/Xbox/PS5 end

What is 4K@60Hz,4K@120Hz?

4K@60Hz TV supports up to 60fps, such as 1080p 60fps, 4k 60fps.4K@120HzTV supports up to 120fps, such as 1080p 120fps, 4k 120fps.

Why do TCL and Hisense TVs show no HDR support?

TCL and Hisense TVs do not enable all the features of HDMI 2.0 by default. You need to allow all HDMI 2.0 features in your TV settings by yourselves. TCL and Hisense, find and change "HDMI 1.4" to "HDMI 2.0" in the TV settings.

What should I do when the monitor shows no input source?

First, check if the HDMI cable is connected to the HDMI ARC/eARC port of the receiver. Second, enable the ARC (eARC) function in TV settings. Finally, select the input source for the HDMI port where the HDMI cable is plugged into for the receiver.

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