Originally Posted by MichaelJHuman
I know for a fact you can shut down the receiver with no load. I have done it.
I can't tell you the exact reasons. I would expect, at very least, the voltage amplifier stage is fully operational, and that stage provides all the voltage gain. If the protection circuit mechanism is monitoring the voltage amp stages, it could see a condition it does not like, and shut down the amp. Which is why I suggested trying to reduce the channel trims to see if that helps.
The next question, I guess, would be to figure out a way around this issue, if possible.
My request for help from Yamaha Tech Support has gone unanswered.
I sent them an e-mail from their on-line support page and I got a reply saying:Mark,
Would it be possible for you to call our toll free customer service line for
more detailed assistance. I feel we can solve your problem more efficiently.
Level 2 Support:
1-800-292-2982 Option 5 Hours: Monday Through Friday 8 AM to 4 PM
Note: If our Level 2 support is busy the calls will overflow to the
Level one support line. In that situation please give us a chance to
clear our que's and call back later.
The Yamaha Customer Support Team
I called the number and talked to a guy... and he sounded like he didn't know his ass from apple butter. He was using terminology incorrectly, speaking way too fast, and not doing much listening. Once I got him calmed down and listening to what I was actually saying, he said, "I don't think I can help you... you probably need to talk to someone in our Level 2 Support group." What the heck? I called the Level 2 help desk... but apparently it got transferred to Level 1. No chance to stay on hold, no indication that it was transferred to Level 1, nothing.
To top it off... this guy created ANOTHER trouble ticket.
Anyway, I sent an e-mail back to Tech Support, and never heard another word. So after a week or so, I called again. Once again, it rang, I sat on hold... then it dropped to Level 1 again. This time, the guy listened to me. He looked up my support ticket and said that it had been CLOSED. WTF? Nobody has answered my question or even helped me yet! So he transferred my call to the Level 2 support person... who wasn't there. I left a message, but I still haven't heard back from him.
Needless to say, I am not impressed with Yamaha's tech support.
I work in an engineering/technical support department, and customer service is our focus. Without our customers, there is no need for us... so we make sure to take care of them. Apparently, not everyone has the same attitude about that.