Yamaha RX-V4A, RX-V6A, and RX-A2A - Free board replacement for 4K / 120Hz issue

MrSpark

Active Member
Yamaha Audio Japan have just announced a program to offer free board replacements for the RX-V4A, RX-V6A, and RX-A2A, where a customer requires 4K / 120Hz compatibility.

Hopefully this will be rolled out to other territories and also its good news for the RX-A4A, RX-A6A & RX-A8A and 4K / 120Hz compatibility. i.e. its fixable via a firmware update.


Google translation:
We would like to express our sincere gratitude for your continued patronage of Yamaha products.

Regarding the AV receivers "RX-V4A", "RX-V6A", and "RX-A2A" released in 2020 and 2021, support for 4K / 120Hz input / output, which is the latest HDMI 2.1 function, in future updates. ... is my plans. However, in the 4K / 120Hz signal from the next-generation game machine Xbox Series X and the graphic board NVIDIA GeForce RTX 30 series, the problem that video and audio are not output when inputting to the AV receiver became clear, and in order to deal with these It turns out that the hardware needs to be replaced.

For customers who enjoy 4K / 120Hz input / output by connecting to Xbox Series X and NVIDIA GeForce RTX30 series​

We are planning to support free board replacement for customers using the target AV receiver. This allows you to connect to problematic devices and enjoy 4K / 120Hz signal images. This board replacement will be carried out free of charge for 24 months from the start month. Details such as how to apply will be announced on this website around September 2021.
Customers who do not use the Xbox Series X or NVIDIA GeForce RTX 30 series for 4K / 120Hz video signals do not need to replace the board. The AV receiver targeted this time currently supports 4K / 60Hz HDR signals, so it can be used as usual on many game devices. In addition, the target AV receiver is compatible with eARC. You can enjoy 4K / 120Hz video by directly connecting the TV and the source device and outputting the audio signal to the AV receiver with eARC.
In addition, the AV receivers "RX-A4A", "RX-A6A", and "RX-A8A" announced on May 13, 2021 do not have this problem, so there is no need to replace the board and future firmware updates. You can enjoy HDMI 2.1 standard video only.
We apologize for any inconvenience caused to customers using this target device and combination, and we appreciate your understanding.
 

whitehart

Well-known Member
interesting, wish it was a bit sooner - think i will still flog my RX-V6A for another Yamaha though
 

dante01

Distinguished Member
Not sure why the translation is required? This is not new news and was announced on Yamaha's US site on Friday.

 

MrSpark

Active Member
🙄
Not sure why the translation is required? This is not new news and was announced on Yamaha's US site on Friday.

 

dante01

Distinguished Member
Hopefully this will be rolled out to other territories and also its good news for the RX-A4A, RX-A6A & RX-A8A and 4K / 120Hz compatibility. i.e. its fixable via a firmware update.


No, it isn't fixable via a firmware revision.


Yamaha:
A future hardware update is required on the above AV receivers for customers who plan to connect Xbox Series X or NVIDIA RTX30 at 4K/120Hz to these select AV receivers.

The fix will require the HDMI board to be replaced. The new board will incorporate a different HDMI version 2.1 chipset that isn't effected by the issues that are effecting the current chipset relative to the conveyance of 4K/120Hz video.

Expect the scheme intended to update the effected models to begin no sooner than September. It will be available for 2 years from the date they commence with the update board replacenent scheme.
 
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MrSpark

Active Member
Better! Thanks for clearing that up
No, it isn't fixable via a firmware revision.


Yamaha:


The fix will require the HDMI board to be replaced. The new board will incorporate a different HDMI version 2.1 chipset that isn't effected by the issues that are effecting the current chipset relative to the conveyance of 4K/120Hz video.

Expect the scheme intended to update the effected models to begin no sooner than September. It will beavailable for 2 years from the date they comence with the update board replacenent scheme.
 

Villanaurus Rex

Novice Member
Sounds like a massive faff to me, especially if we have to send the AV in for repair, as nobody keeps boxes any more. (I know some people do but I can't, small flat, and disabled. Boxes would get in the way of my crutches and wheelchair) I don't get why they couldn't go down the same route as Denon and Marantz with the adapter.
 

dante01

Distinguished Member
Most Denon owners would prefer that Denon did what Yamaha are doing as opposed to resorting to an external adaptor. No one actually knows what the adaptor does, whether it modifies the video signal or whether it will add latency and a delay to that signal? A complete board replacement with a new chipset isn't going to result in added latency, the additional box or require it own power supply. The AV receiver will be in fact as ir was advertised and you'd not know the difference unless somone told you.

There's no advantage to using the kind of external adaptor Sound United are pushing when compared to replacing the HDMI board and chipset onboard the AVR itself. If anything, there could be disadvantages associated with such external adaptors.
 
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whitehart

Well-known Member
does anyone know if the replacement chipset board for the RX-V6A etc will run at 40gbps or at the slower speeds?
 

dante01

Distinguished Member
does anyone know if the replacement chipset board for the RX-V6A etc will run at 40gbps or at the slower speeds?


Yamaha have never indicated the bandwidth of the original chipset and neither have they declared what the banwidth of the replacement is or will be. Try asking them directly. They may be a bit more forthcoming with such information now that they've officially announced their intentions?
 

whitehart

Well-known Member
Yamaha have never indicated the bandwidth of the original chipset and neither have they declared what the banwidth of the replacement is or will be. Try asking them directly. They may be a bit more forthcoming with such information now that they've officially announced their intentions?
I will once they have contacted me with regards to the swap out thanks, the general consensus was that the original bandwidth was less than 40gbps and the new AVR's coming out will be 40gbps so im hoping the swap out will use a simliar cct
 

dante01

Distinguished Member

It is the same as what Yamaha had previously posted on their US site.





Also worth emphasising to current owners:


  • Be sure to register your product to be notified of next steps and receive direct communication about the update program.
 
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