In this case, you can plug your Apple TV 4K into either the sound bar or AV receiver to play sound in Dolby Atmos. Or you can plug your Apple TV 4K into your television to watch video in HDR and Dolby Vision.
You will plug one end of the HDMI cable into the back of your TV and the other end into the receiver where it says “Out-to-TV.” Now plug the receiver into the power adapter and a wall socket. Make sure the green power light is on.
How to connect an iPad to your TV with an Apple TV
For most televisions. Look for component inputs on your TV. These connections have a row of five differently-colored inputs (green, blue, and red for video, white and red for audio). If you have more than one set of component inputs, it's the first set that generally works with standard AV cables.
Standard USB-A to USB-C cable and Apple's Lightning to USB Adapter.
If you have a MacBook with an HDMI port, connecting your device to a TV is extremely straightforward – simply buy an HDMI cable, plug one end into your computer, and the other end into your TV.
To connect your cable:
To switch to a wired connection, all you need to do is to connect one end of an Ethernet cable to your Apple TV® and the other end to one of your Linksys router's numbered ports (1, 2, 3, 4). The Apple TV® will then switch automatically.
Plug the adapter into the Lightning port on your iOS device. If you need to charge your device while using it, plug one end of a Lightning to USB or Dock Connector to USB cord into the second port on the adapter and plug the other end into a power source. Switch to the HDMI input on your TV.
The adapter costs around $40 on Amazon, and you'll also need to buy an HDMI cable if you don't have one already.
Using Apple's Lightning Digital AV Adapter – or any third-party alternative – is a fairly straightforward process:
How do I connect my device to TV using the HDMI Adapter?
Check if the cable is firmly connected to the TV and the A/V device and make sure it is not loose. Check if the input setting on the audio system (such as an amplifier or theater stand) is set to the input where the A/V device (such as a Blu-ray Disc™ player) is connected.
To access the AV channels:
Overview. Belkin's 3.5 mm Audio Cable lets you enjoy listening to music anywhere by connecting your iPhone or iPad to the 3.5 mm jack in your car or home stereo systems.
Connect to your HDTV with an A/V adapter. Using an HDMI A/V adapter allows you to connect iOS 4.0 or later Apple devices that use a 30-pin connector. In three easy steps you can connect your Apple device to your HDTV: First, plug in a digital A/V adapter to your iPad, iPhone or iPod touch.