I have the same problem. But it doesn’t jumps around. It just doesn’t controls the volume. When turning the knob the numbers goes after several turns one digit up of down. Doe you know what this could be?
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Re: nad t753 volume control knob doesnt work
I'm going to assume that you mean it jumps around, volume up/down by itself? If so, you have a bad rotary encoder. If you are interested in having your NAD repaired, please visit my website at audioserviceclinic.com. You may contact me there. Thank you.
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It could be a heat issue, is the receiver able to get air to cool itself? Also, a bad speaker or mismatched speaker may cause this. Sometimes hooking up extra speakers may cause this. Other than that, it would be a service issue.
If the standby/protection indicator on the amplifier blinks when you specifically press the volume +/- key, it obviously indicates that the unit is receiving the remote's command. Try the following while pressing the volume key on the remote: 1.- Put your ear as close as possible to the volume control knob and listen for the sound of a motor spinning, if you hear it, the volume control assembly needs repair. If you hear no sound, proceed to next step. 2.- Gently rotate the volume control knob on the amplifier unit (it might be stuck and needs a "little help").
If none of the above applies, the unit needs to be opened and troubleshooted. I've seen many instances where the volume control motor was not properly connected to the board or the assembly was put back incorrectly (specially in units that have been opened to be refurbished). I've heard NAD has a limited warranty for refurbished items. It might be wise for you to check before sending the unit for repair at your expense or trying to tackle the problem yourself. Hope this helps.