Yamaha RX V673, audio frequently cutting out - Home Theater Forum and Systems - HomeTheaterShack.com

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post #1 of 16 Old 07-30-15, 02:53 AM Thread Starter
Shackster
 
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Yamaha RX V673, audio frequently cutting out

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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post #2 of 16 Old 07-30-15, 11:16 AM
 
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Re: Yamaha RX V673, audio frequently cutting out

I had a similar problem that turned out to be our freezer...our freezer was on the same circuit as our Yamaha. Everytime the freezer would turn on the HDMI would cut out causing a loss of picture, and sound. I replaced our freezer with a new one (old one was about 10 years old), and the problem was still there...So i plugged the freezer into another outlet and the problem went away. Do you by chance have an appliance on the same circuit?

Hope this helps.

My Home Living room Theater
Samsung 65" FP, Yamaha CX-A5100, Xilica XP4080, (4) Klipsch RP160MS, (4) JBL 8340As, (2) Yamaha P2500s amps, PS3, XBox One, (1) Asus mini pc, (2) Furman Power Conditioners, Darbee Darcet, and a Project RPM 1.5 Carbon turntable..
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post #3 of 16 Old 07-30-15, 03:12 PM
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Re: Yamaha RX V673, audio frequently cutting out

Quote:
ellisr63 wrote: View Post
I had a similar problem that turned out to be our freezer...our freezer was on the same circuit as our Yamaha. Everytime the freezer would turn on the HDMI would cut out causing a loss of picture, and sound. I replaced our freezer with a new one (old one was about 10 years old), and the problem was still there...So i plugged the freezer into another outlet and the problem went away. Do you by chance have an appliance on the same circuit?

Hope this helps.
I would check this as well. The 1st thing that popped into my head was to try the receiver on a different circuit.
I see you said you tried it in a different location but you may need to verify that it's not somehow on the same circuit.
I had an intermittent failing breaker cause all kinds of weird and occasionally inconsistent issues.
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post #4 of 16 Old 07-31-15, 11:43 PM Thread Starter
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Re: Yamaha RX V673, audio frequently cutting out

Thanks for your replies and advice.

I don't know exactly how the circuitry is mapped in this house. I am renting, and it would require switching things on and off in the circuit breaker panel to figure it out. Can't do that now, as there are servers running.

What I did do, is move the receiver (headphones and flash drive) into the kitchen, which is on the complete other side of the house. I would assume that is most likely to be on a different circuit. Anyways, the issue was even worse there. The sound cut out almost as soon as it started, the audio was out for much longer, and only came back briefly before cutting out again. Also, that crackling sound was much, much worse.

The Yamaha engineer called me last night, and he is coming over tomorrow morning to have a look. He is also bringing along two kinds of replacement boards, in case he identifies those to be the problem. Then, he can fix it here.

I worry that he won't be able to figure it out, so keep coming with advice.

Thank you!
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post #5 of 16 Old 08-01-15, 08:12 AM
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Re: Yamaha RX V673, audio frequently cutting out

Get a good UPS and plug the AVR into that. Should clean up the power and isolate it from any wonky power issues in the apt.

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post #6 of 16 Old 08-03-15, 09:20 AM Thread Starter
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Re: Yamaha RX V673, audio frequently cutting out

The technician came out on Sunday.

After listening to the problem, he figured the HDMI board needed replacing. He said that even though the problem persisted without the use of HDMI, most of the circuits and chips are on the same board. He brought a new one, however, the new one didn't seem to work either. It didn't play sound at all, and wouldn't take an update.

He put the old board back in, and the sound worked again, but still had the same problem cutting out. He said he'd have to order another board. If there's stock in Taiwan, it'd take a week or two, if not, he'd have to order it from Japan, which would mean about a month.

A brand new board not working either doesn't quite inspire confidence. However, the technician came all the way to my home on a Sunday, so I gotta commend Yamaha on that.

I am concerned about the price of the new board. The technician said it costs NT$9000, which is about US$280, that seems ridiculously expensive. That is almost half of what I paid for the receiver.
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post #7 of 16 Old 05-20-16, 10:36 PM
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Re: Yamaha RX V673, audio frequently cutting out

Did you ever resolve your issue? I'm now having exact symptoms and have had it on the bench twice with NTF. Just curious is yours was resolved
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post #8 of 16 Old 05-21-16, 12:05 PM
 
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Re: Yamaha RX V673, audio frequently cutting out

Quote:
offshorsailor wrote: View Post
Did you ever resolve your issue? I'm now having exact symptoms and have had it on the bench twice with NTF. Just curious is yours was resolved
Mine is currently at a Yamaha Service Center under warranty... A repair shop I went to said my problem is the HDMI board now as the problem has evolved to moving the channels randomly around the room or turning them off randomly. We will see if Yamaha is able to duplicate the problem. I wish that a Service Center would just replace what they think is wrong instead of not finding a problem, and making you have to take it back multiple times to finally discover the problem.

My Home Living room Theater
Samsung 65" FP, Yamaha CX-A5100, Xilica XP4080, (4) Klipsch RP160MS, (4) JBL 8340As, (2) Yamaha P2500s amps, PS3, XBox One, (1) Asus mini pc, (2) Furman Power Conditioners, Darbee Darcet, and a Project RPM 1.5 Carbon turntable..
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post #9 of 16 Old 06-11-16, 09:51 AM
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Re: Yamaha RX V673, audio frequently cutting out

I also have a Yamaha RX V-773 and the sound is doing the same thing. It is cutting out intermittently and pops. I thought maybe it was a firmware problem as I seen an update 1.91. So I updated from 1.84 and then the update was successful but the 1.91 did not display, only got XXX. So i tried again and now get errors. I tried both over wifi and USB and keep getting various error codes. I would assume that the sound problems are hardware problems vs. firmware...any ideas as I see others are having the same problem.
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post #10 of 16 Old 12-11-16, 06:15 PM
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Re: Yamaha RX V673, audio frequently cutting out

I had EXACTLY the same problem then Ginja.
Looks like is a design issue as is very estrange the same behavior.
The issue started very sporadically and now the receiver is almost useless.
I vacuum clean inside (all the boards) and also updated firmware to latest now (1.96).
Problem still persist but having the unit unplugged from power sleeps the issue for few hours.
Perhaps it is just a capacitor losing its value, but how may now which one if it is the case.
I'm in Argentina, very far for any reliable Yamaha technician, so please I'll appreciate your input in any solution shows up.
Good luck to all of us!
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