Yamaha RX V673, audio frequently cutting out

rinjulian said:

Yamaha RX-A2020 delayed audio at power on

I've had this Yamaha RX-A2020 for a few years now - purchased new from BB. I have not used it myself much for the past 2 years since my teenage son has taken over the basement as his appt. He has used it every day and night for quite a while now. Lately when powering it on it takes a long...

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solution is the heat in the chip DSP.

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Ryan Ewen said:

Solution is to replace the DSP chip with newer revision chip.
Temporary workaround is to heat the chip. It will fail again. Quicker and quicker.
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Hi, thanks for the reply, where can I get a replacement DSP chip?
Cheers

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Ginja said:

Hi,

I am hoping someone could help me with this issue. I have had my receiver for just over two years now. The problem started small, but has gradually gotten worse and worse.

Basically, the audio cuts out for a few seconds and then returns. Sometimes it does so every 10 minutes, sometimes every 30 seconds. When it does cut out, the speaker icons disappear from the display of the receiver, and then return again just before the audio plays.

I have tried using headphones, instead of speakers (speakers unplugged) - same problem.
I have tried playing music through Ethernet (HDMI unplugged) - same problem.
I have placed the unit in a different location - same problem.
I have power it from a different wall socket - same problem.
It worked perfectly for two years...

Rarely, there is a subtle noise, like someone crumpling a plastic shopping bag, or like firecrackers, coming from the speakers.

I have sent it in for repairs twice, but the Yamaha engineers say that the unit is working perfectly. The second time, the engineer said he tried it at his home for over a week, and he didn't have any issues.

After they returned it, each time it is fine for a day or two, and then the audio issues start again. Which leaves me to believe it must be something in my home.

Has anyone else had an issue like this, or know what else I could try to resolve it? Any forum searches I have done, refer to HDMI issue, which I bypassed, or TV Boxes, which I don't have connected at the moment.

The engineer said, he could replace the DSP board (I think that's what he means. I am in Taiwan, and the engineer only speaks Chinese) But he said that could be expensive.

Thanks in advance!

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Ryan Ewen said:

Solution is to replace the DSP chip with newer revision chip.
Temporary workaround is to heat the chip. It will fail again. Quicker and quicker.

Click to expand...

Bigfield said:

Mine is an RX-A840 with similar behavior. The only way for me to keep the audio flowing, is to have my source connected through analog ports and put it in Pure Direct mode. Any other combination ( SPDIF, HDMI with or without Pure Direct mode and analog without PD mode), brings the problem back (Audio & L R lights simultaneously switching off/on).

The only other difference I noticed is that it takes longer and shows less frequent with analog connections. Through digital, it shows almost immediately.

I have been able to reproduce it a couple of times with some slamming, which could mean that there is a bad connection somewhere.

I'm curious if others are able to reproduce and confirm this. And if so, is replacing the DSP chip the way to go.

Hope this helps to find the cause and solution.

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Markjd15 said:

Same problem with the tsr-7810 but the fix was easy after just poking around in the settings for a few. Go to settings then sound then scroll down to virtual surround back speaker and be sure it's turned on. For me, it was problem solved and the problem I was having is the same as what I've read here. Try it let us know how it worked out.

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