Does this product support ARC HDMI connections

Yes, to get sound from your Roku TV to your receiver when using the TV's built-in apps (such as switching to TV sound), you might need more than just RCA cables. RCA cables only carry analog audio signals, and many modern devices, including Roku TVs, use digital audio signals for better quality.
Here's what you can do to ensure you're getting sound from your Roku TV to your receiver:

1. Check Audio Settings on Roku TV:
   • Go to your Roku TV's settings menu.
   • Look for the audio settings section.
   • Make sure the audio output is set to the correct option for your receiver. This is usually HDMI ARC (Audio Return Channel) or Optical audio.
2. Use HDMI Cable with ARC Support:
   • If your receiver and TV support HDMI ARC, connect an HDMI cable between the ARC HDMI port on your TV and the ARC HDMI port on your receiver.
   • Ensure that the HDMI input on your receiver corresponds to the HDMI ARC output on your TV.
   • In the TV's audio settings, select HDMI ARC as the audio output.
3. Use Optical Cable (if no HDMI ARC):
   • If your TV and receiver don't support HDMI ARC, you can use an optical audio cable (Toslink cable).
   • Connect one end of the optical cable to the optical audio output on your TV.
   • Connect the other end to the optical audio input on your receiver.
   • In the TV's audio settings, select optical audio as the audio output.
4. Configure Receiver Settings:
   • Ensure that your receiver is set to the correct input source for audio. For example, if you're using HDMI ARC, select the corresponding HDMI input on your receiver.
5. TV App and Volume Settings:
   • When using apps on your Roku TV, make sure the volume is turned up and not muted within the app itself.
   • Adjust the TV's volume settings to an appropriate level that allows your receiver to amplify the sound effectively.
6. Test with Different Content:
   • Test the setup with different apps on your Roku TV to ensure that the issue is not specific to a certain app.

If you've tried these steps and are still not getting sound from your Roku TV through your receiver, it's possible that there might be compatibility issues between your TV and receiver. You could also try reaching out to Roku's customer support or your receiver's manufacturer for further assistance.

It appears that the Bytecc 4K2K LPCM 7.1 Extractor may not be fully compatible with the ARC (Audio Return Channel) feature on your ONN Roku 40 TV. Here are a few suggestions to potentially solve the issue:

1. Ensure that both your TV and the Bytecc 4K2K LPCM 7.1 Extractor support the ARC feature. Check the user manual for the specific HDMI port on your TV that supports ARC, as not all HDMI ports may have this feature.

2. Double-check your TV audio settings. Make sure the audio output is set to HDMI ARC, and if there's a setting for audio format, choose LPCM.

3. Try using a high-speed HDMI cable that supports Ethernet, as the ARC feature requires this type of cable.

4. Perform a factory reset on your Extractor and reconnect it to the HDMI ARC port on your TV.

1. When you connect an external device to TV (without ARC) and Sound Bar, connect the HDMI cable (sold separately) from the external device to the TV. Then, connect the external device to the Sound bar using an optical cord (sold separately).
2. If you want to connect to just the TV, then the HDMI connection is unnecessary.
3. I myself find it just as good in not using the HDMI and just using the optical cord.
4. Take Care all best

Yes it should have an HDMI ARC connection.

If the TV and Unit have what's called an ARC socket, then you can purchase an ARC HDMI cable and this will pass both sound and picture between the TV and Audio unit.
If it has not, then you will need to connect the sound via either an optical cable or RF cable.
Some TV's have only one ARC HDMI socket, so make certain you get the right one!

Included is a link that may confirm what you already know, but it confirms the two way connection of ARC.

HDMI ARC is not available from the Dynex

The only best choice for is the optical connection to the sound system from the TV. Optical is digital and will contain in the data transfer the audio format. Make sure in the TV settings that the preferred format is set.

There are adapters but anything RCA type connectors will only downgrade the audio quality.

http://www.digitaltrends.com/home-theater/hdmi-arc-explained-works-care


User manual see page 9
https://s3.amazonaws.com/productdocs.inbound.bbycontent.com/ba256559cd12e32832855631db178290

Make sure you have selected HDMI out on the player.

Is your Apple TV connected to the Sony or directly to your TV? If directly connected to the Sony HTS ARC shouldn't be needed and you should have audio. If that's the case check the Apple TV settings to be sure it isn't set for s/pdif output. If connected to the TV then the TV should be able to put a s/pdif signal on the HDMI ARC pin but perhaps there's no way to assign it to the HDMI input coming from the HTS? It may be going to the ARC pin on the Apple TV HDMI input which won't give you any sound. Normally ARC is intended to put the s/pdif signal from the TV's internal tuner on the HDMI cable from the HTS so the HTS can play TV sound without having to tun a separate Toslink cable from the TV s/pdif output to the HTS. One other thing: Early HDMI cables do not include the ARC wire so be sure you have ARC capable cables. Look in your TV documentation to see if there is a way to assign the ARC output to a different incoming HDMI input if the Apple TV is connected directly to the TV. If not you may need to resort to a Toslink optical cable from your TV to an optical input on your HTS. Or actually running that cable from Apple TV to the HTS would be better since it's possible it could carry surround sound. Most TV's optical outputs are limited to the 2 channel sound the TV can accept.

Your TV does support Audio Return Channel (ARC). Try connecting your Bluray player to HDMI 2 and your sound bar to HDMI 1(ARC). You will need to make sure that VIERA link is turned on in the Setup menu of the TV.

There are several different wireless receivers that you can consider.

A simple solution would be the following:

Both devices being connected must support the ARC feature. HDMI ports may be marked with ARC to show which one to use. If not, check your product manual or specifications to see if the ARC feature is supported.
If you find that your TV, A/V receiver or home theater system does not support ARC, you will need to use Option 2: Coaxial Digital Cable, Optical Digital Cable, or Audio Cable to connect your devices.
Make sure that both devices support ARC functionality.
Make sure that the TV and receiver are connected using an HDMI cable.
Connect the cable to the HDMI port that is labeled ARC or the port identified in your manual that supports ARC.
Turn on the Control for HDMI setting on both the TV and the receiver or home theater system.
NOTE: The steps required to enable the Control for HDMI feature may vary. Check the operating instructions supplied with the devices for model-specific steps.