Hello, it has been a while since I've been on this forum but I've continued to enjoy my RMB-1075 amp. My dilemma is that my friend who I am helping setup his system has a Rotel RSX 972 receiver that despite setting Video 1, Video 2 to various optical inputs, does not play sound. I know it is not the amp since I ran an analog input into the Rotel and got sound from the DVD player (listening to a CD). I am completely stumped and as you know the manuals for the 972 aren't the most descriptive. I am frustrated and need some Rotel help. Thank you in advance.
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If it's like the newer models, the analog section is separate from the digital section. Which means the digital board could be bad and it would still play analog sources fine. I'll check the manual later tonight to see if something jumps out at me.
Kevin D. -
Thank you Kevin for your time. Basically, we kept on playing around and swapping wires and finally got the darn thing to play dolby digital, etc. Honestly, I repeated the same steps I was doing all day so I've got no idea what I did different.Originally posted by Kevin D
Ok, that issue seems to be resolved, but now he has a humming issue. My first impression is that it is a grounding issue with the Rotel or the panamax power strip/console that he is using. Have others run into a steady, pretty loud humming coming from their speakers, most likely caused by grounding?
Edit: In reading and searching this forum, I see there's been issues with cable boxes, etc. He has a new HD Cable box from Dish Network. Since I'm not familiar with proper grounding, could you please walk me through proper testing to resolve this and how to? Again, the more I read, the more I'm realizing the steady hum from the speakers is most likely grounding.Comment
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To check for a poorly grounded dish, just unplug the dish cable(s) from the back of the sat receiver. It could be a number of things, but most likely:
1) Dish
2) power outlet for the sub vs the main unit
3) power outlet for the TV vs the main outlet.
I would start at the dish, then unplug power from anything not connected to the panamax that is some how connected to the system.
Let us know.
Kevin D.Comment
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And if it is the dish, what to do? And if it is the sub, what to do? I did disconnect the sub cable from the receiver during the hum and it continued. All equipment is plugged into the panamax.Originally posted by Kevin DComment
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If it's the dish, grounding the physical dish to an electrical ground usually works.
You might have to unplug everything from the 972 except for the speakers and add the components and wires back one by one to narrow it down.
Kevin D.Comment
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Hi bmwuk
Sorry, I'm not able to help with the humming issue but just wondering if you have resolved the problem?Comment
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I was just at a dealer and he reminded me of my old RSX 965. I had it and there was a distinctive hum being generated somewhere and it sounded like a grounding issue but I couldn't get around it. Finally after much complaining my Rotel store took it in to be fixed and the tech guy said it was definitely...05 February 2003, 23:51 Wednesday -
Hi there,
I currently have an RSX-972 running my HT set up.
H/ever I still have an RC-970BX pre-amp and two RB-970BX p/amps running my stereo and driving the front speakers in bi-amped, bi-wired set-up.
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