New Sierra 1s and a dead Yamaha AVR???

[Mewman]

Hi All,

I was gifted a Yamaha RX-A720 receiver and decided to buy a set of Sierra 1s with a center channel to go with the receiver. I tried connect everything with 14 gauge speaker wire and I get no sound. I'm very new to HT speaker set-ups and these are the first set of speakers that I've tried connecting to the Yamaha receiver. I believe I'm connecting everything correctly and I reset to the receiver to factory default settings. I tried connecting my computer to the AVR via audio RGA and I also tried connecting my cable box to the AVR via HDMI. In both cases there is no audio coming from the speakers. I do get however get picture going to the TV when I connect the HDMI out from the AVR to the TV.

Am I missing something in the set-up or do I just have a broken receiver? Any thoughts or suggestions of how I can test the AVR would be really helpful.

[racrawford65]

Have you read the manual? setup inputs?

[Mewman]

Yeah, I read through the set-up manual for both the speakers and the AVR. I'm not really sure what I'm missing...

[Mag_Neato]

Have you tried running the auto setup..... YPAO?

That should send a test tone to the speakers. If that does not work it's probably broken.

[billy p]

If you're using ARC output you must assign your other components with ARC... otherwise...you'll not get audio or try using coax or fibre optic cable. I found out with my anthem...HDMI wasn't ARC compliant and I bought a different receiver to solely use HDMI.

*Have you tried a different AVR with speakers to rule out one or the other*. I doubt this will be the problem...it's likely due to finding the correct assigned output.

[racrawford65]

* I assume, then, that you configured the inputs correctly? If you did a factory reset, your configurations will likely need to be redone.
* Do you get sound when trying the FM (or AM?) radio?
* Did you try different sources aside from computer and cable box? Perhaps connect a bluray player via HDMI (try all different inputs) and then by analog (if it has outputs).
* AVR set for 8 ohm speakers?
* Speakers connected to correct terminals on the AVR?
* Do you have a sub? Does it make sound?
* Do the test tones make sound?
* Do you have a separate amplifier? Try connecting AVR Audio Out to AMP, and AMP to speakers.
* HDMI configuration ok? (around pg 86 in manual I see online). HDMI control off; ARC off.
???

[billy p]

What leads me to believe it's ARC related...was his comments on having display and no sound. In my case...I couldn't use fiber optic for sound because of space limitations...on back of OLED panel..plus this method defeats the single HDMI hookup...the tv worked but he's not assigned the correct audio output and unless his display is arc compatible...he'll need either coax or fibre optic....for sound

[racrawford65]

billy p - perhaps, but he did say he hooked up the computer and cable box to the AVR and AVR HDMI out to TV. CEC/ARC can be buggy (I never use it - I'm running an optical cable from my LG into my MRX720).

I'm thinking either a configuration/setup issue (eg inputs not configured correctly) or worse case, AVR is bad. I thought maybe an HDMI board but has same issue with analog/RGA.

[curtis]

The key questions in my mind:

"Do you get sound when trying the FM (or AM?) radio?"
"Do the test tones make sound?"

[Mewman]

Thanks for the advice.

I tried FM/AM Radio: No sound
I tried Auto set-up YPAO: Couldn't start, no sound
I confirmed that the AVR is set to 8 Ohms
I confirmed that HDMI Control and ARC are both off

I think the AVR is bad...

[racrawford65]

well, that's not good. Probably why it was gifted...
anyways, two last things to try (if possible), see if you can find the last firmware for it and reinstall. Maybe, just maybe, the firmware got corrupted. Secondly, make sure HDMI / CEC / whatever it's called is also off in your TV and source devices (if they have)


Otherwise, looks like you need to buy a new AVR unless you have an older one you can use.


quick google search

https://usa.yamaha.com/support/updates/rx-a720-820_en.html

[racrawford65]

Yamaha trouble shooting for this

https://usa.yamaha.com/support/faq/audio_visual/gja16403.html

Hopefully, it's not the third bullet if no test tones....

[racrawford65]

one more thing -- try the tuner (FM/AM) again but in pure direct mode. If you get sound, it is likely an HDMI board and probably not worth fixing as I believe the 720 is several years old.

[Mewman]

Yeah - I'll be replacing it.