Yamaha RX-A680 connection issues to apple tv 4K

Im having issues with my apple tv 4K being connected to my yamaha RX-A680.

the connection keeps cutting out, audio and vision, decoder keeps flashing on and off on the av receiver as the connection keeps dropping out.

belkin 2.1 8k HDMI cable isnt the issue, same problems with hdmi 2.0 cables

changed the screen settings within apple tv with no luck.

When the receiver is turned off i get both picture and sound perfectly on the tv via hdmi ARC from receiver.

Any help would great thanks

dante01

Outstanding Member
Joined Mar 5, 2009 Messages 58,243 Solutions 1 Reaction score 16,119 Points 9,937

Try changing the cable between the TV and the receiver. Note that there absolutely no benefit to using the Belkin cable you have. The HDMI implimentation on your receiver is limited to no more than 18 gigs so the additional bandwidth Belking suggest that their cable is able to carry is a mute point. You'd need sources, an AV receiver and a display that includes HDMI version 2.1 to be able to even test that cables abilities. A $5 cable rated high speed will give you the same results with the equipment you currently have.

Additionally, want have you set the AV receiver 4K MODE to in the advanced settings? I'f dugget setting it to MODE 2 if you've not already done so. Maybe also try setting the AV receiver's video processing to direct in an attempt to rule that out as being the cause of your problems?


Note that the Belkin cable is not HDMI version anything and isn't not tested by HDMI org for compliance with HDMI version 2.1. HDMI org do not catagorise cable in accordance with HDMI versions and only hardware uses the version numbers.

Last edited: Nov 10, 2019

Dunners

Established Member
Joined Sep 20, 2015 Messages 644 Reaction score 135 Points 97 Location Close By

How long is this Belkin cable?
Or the cable between the TV and the AVR?
What video settings is the Apple TV set to? 4:2:0, 30fps, 8-bit?
There's no video processing available on the RXA680. Mode 1 indicates that the Yamaha will attempt to pass through 18Gbps, while Mode 2 will attempt 10Gbps. which may help if the cable isn't up to it.

However. Constant drops actually indicate a voltage drop (HDMI likes a consistent 5 volts through out the signal chain). There's products that can attach to the end of the HDMI cable and boost the signal if required.

mikey3000

Novice Member
Joined Sep 12, 2017 Messages 33 Reaction score 0 Points 31 Age 39 Location UK

Hi Guys thanks for your replies,

iv tried both 4K modes with no success,

the cable is 2m long

i think amp to tv hdmi is 2m or 3m

with the apple tv settings i tried all settings, chroma 4:2:0 and 4:2:2, 1080p 30fps all the way to 4K and even SD. Still same issue,

with me swapping HDMI’s iv ruled out that part of the equation,

maybe the hdmi in needs to be the same as hdmi out to tv?

all other devices have never had any issues and my apple tv 4k was fine for the first month or so and now is playing up and iv no idea if this its the source or the amp.

regards to constant drops in volts, can this occur from the apple tv being plugged into a 8 gang extension lead? The loads passing through should be ok, At one time with apple tv id have the TV, amp, subwoofer and ethernet hub.

When the connection issues happen its like the amp is trying to get signal, gets it for a split second, loses signal and repeats is self. On the display decoder is shown and the speaker icons keep appearing and going off when signal is lost.

mikey3000

Novice Member
Joined Sep 12, 2017 Messages 33 Reaction score 0 Points 31 Age 39 Location UK

Try changing the cable between the TV and the receiver. Note that there absolutely no benefit to using the Belkin cable you have. The HDMI implimentation on your receiver is limited to no more than 18 gigs so the additional bandwidth Belking suggest that their cable is able to carry is a mute point. You'd need sources, an AV receiver and a display that includes HDMI version 2.1 to be able to even test that cables abilities. A $5 cable rated high speed will give you the same results with the equipment you currently have.

Additionally, want have you set the AV receiver 4K MODE to in the advanced settings? I'f dugget setting it to MODE 2 if you've not already done so. Maybe also try setting the AV receiver's video processing to direct in an attempt to rule that out as being the cause of your problems?


Note that the Belkin cable is not HDMI version anything and isn't not tested by HDMI org for compliance with HDMI version 2.1. HDMI org do not catagorise cable in accordance with HDMI versions and only hardware uses the version numbers.

Issues still occurring on RX-A680, when i switched over to my old RX-V681 it plays fine.

both hdmi in and out are the same belkin, i got these just so i knew the fault wasnt the ones i had got off amazon. Just to try and rule those out and was hoping they was the issue.


chroma 4.2.0 was fine but Chroma 4.2.2 caused stactic on the RX-V681.


RX-A680 repeatedly losing signal

below is chroma 4.2.2 static, once gone back to 4.2.0 it does now allow me to use 4.2.2 again as its clearly detecting a fault.

it seems as if the apple tv 4K is sending too much bandwidth to the receiver.

Dunners

Established Member
Joined Sep 20, 2015 Messages 644 Reaction score 135 Points 97 Location Close By

Try a different 4K source, 4K Apple TV's are notoriously problematic , sadly.
Get your hands on a 4K Blu-ray player.
If the fault persists, get the amp to your dealer for checking.

mikey3000

Novice Member
Joined Sep 12, 2017 Messages 33 Reaction score 0 Points 31 Age 39 Location UK

Try changing the cable between the TV and the receiver. Note that there absolutely no benefit to using the Belkin cable you have. The HDMI implimentation on your receiver is limited to no more than 18 gigs so the additional bandwidth Belking suggest that their cable is able to carry is a mute point. You'd need sources, an AV receiver and a display that includes HDMI version 2.1 to be able to even test that cables abilities. A $5 cable rated high speed will give you the same results with the equipment you currently have.

Additionally, want have you set the AV receiver 4K MODE to in the advanced settings? I'f dugget setting it to MODE 2 if you've not already done so. Maybe also try setting the AV receiver's video processing to direct in an attempt to rule that out as being the cause of your problems?


Note that the Belkin cable is not HDMI version anything and isn't not tested by HDMI org for compliance with HDMI version 2.1. HDMI org do not catagorise cable in accordance with HDMI versions and only hardware uses the version numbers.

Issues still occurring on RX-A680, when i switched over to my old RX-V681 it plays fine.

chroma 4.2.0 was fine but Chroma 4.2.2 caused stactic on the RX-V681. View attachment 1238613

Gif below is chroma 4.2.2 stactic

Try a different 4K source, 4K Apple TV's are notoriously problematic , sadly.
Get your hands on a 4K Blu-ray player.
If the fault persists, get the amp to your dealer for checking.

The same problem has occured on SkyQ and PS4 pro but only one occasion for both sources, i think it tends to only happen if the amp is still on after having the problems with apple tv 4K. Sometimes this error wont occur at all and ill have days without an issue.

may try a week with the RX-V681 and see if that is effected. If so it must certainly be the apple tv 4K thats the issue.

djdatatec

Novice Member
Joined Apr 3, 2020 Messages 2 Reaction score 0 Points 25 Age 44 Location Florida

I am having this same issue with an RX-V685 and my Apple 4K TV Box. I switched to Fiber Optic HDMI and it still occurs. Its not until i do a reboot of Apple 4K TV that it fixes the issue. I am pretty confident its an Apple issue and I am prolly gonna switch to an Nvidia Shield Pro because of it.

mikey3000

Novice Member
Joined Sep 12, 2017 Messages 33 Reaction score 0 Points 31 Age 39 Location UK

I am having this same issue with an RX-V685 and my Apple 4K TV Box. I switched to Fiber Optic HDMI and it still occurs. Its not until i do a reboot of Apple 4K TV that it fixes the issue. I am pretty confident its an Apple issue and I am prolly gonna switch to an Nvidia Shield Pro because of it.

hi, iv realised i only have issues when chroma 4.2.2 is on.

once i put it into 4.2.0 and the powered down everything to reset things, it works flawlessly now.

using chroma 4.2.2 seems to be too much for the av receiver and really confuses it and it began to confuse the av receiver on other HDMI inputs, hence why i said change to 4.2.0 and power eevrything down so it forgets the errors and works fine with 4.2.0.

iv gone months now with zero problems

hope this helps

stylee99

Novice Member
Joined Feb 14, 2014 Messages 1 Reaction score 0 Points 0 Age 43

I have this same issue. It began after I moved homes, interestingly enough. I brought the same setup from one house to another, connected everything up at the new place, and saw the snow/static with blinking screen issues. At my old house, this same configuration and setup was running without problems, and at 4:4:4 chroma.

Long story short, I ended up getting a new receiver (the RX-A680), and the issue remained. As you mentioned, it seems to happen when trying to set chroma to 4:4:4 (or 4:2:2 in your case). If I set chroma to 4:2:0, I don't get the issues. Also going directly from the appletv to the TV does not produce issues. All that said, I suspect that either the apple TV or cables are the culprit - the apple TV is extremely finicky - restarting it and even tapping cables sometimes produces different results.

I will be trying different cables soon as well. There should be no reason 4:4:4 shouldn't work as it previously was, and all of my hardware supports it.

mikey3000

Novice Member
Joined Sep 12, 2017 Messages 33 Reaction score 0 Points 31 Age 39 Location UK

I have this same issue. It began after I moved homes, interestingly enough. I brought the same setup from one house to another, connected everything up at the new place, and saw the snow/static with blinking screen issues. At my old house, this same configuration and setup was running without problems, and at 4:4:4 chroma.

Long story short, I ended up getting a new receiver (the RX-A680), and the issue remained. As you mentioned, it seems to happen when trying to set chroma to 4:4:4 (or 4:2:2 in your case). If I set chroma to 4:2:0, I don't get the issues. Also going directly from the appletv to the TV does not produce issues. All that said, I suspect that either the apple TV or cables are the culprit - the apple TV is extremely finicky - restarting it and even tapping cables sometimes produces different results.

I will be trying different cables soon as well. There should be no reason 4:4:4 shouldn't work as it previously was, and all of my hardware supports it.

i have stuck With Chroma 4.2.0 and i have 99% no issues.

only issue i have now is sometimes the amp just struggles with certain programmes, drive to survive a prime example. 7 times it can work fine,a few times its will just struggle to process the signal, its almost like the quality is just too high for the amp sometimes.

an overall turn iff and back in again fixes the issue, just annoying when it does happen hut the apple tv 4k is newer than the amp so i guess these issues can be expected.