Question about NAD T770 Receiver

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NAD T770 (T2 Monitor button)

My NAD continually defaults to the T2 Monitor while playing especially after start up,thus muting the sound,

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  • davebiomed Jul 02, 2008

    I have the same problem have tried shorting the tape - 2 inputs no change.

    has had this problem for most of it life it gets better after a warm up. To old to fix to good to through away ???? Dave Brisbane

  • rjelles Aug 10, 2008

    I see the same behaviour with my T770 - the T2 monitor switches on and off every few seconds at first, then gradually the cycles are longer as it warms. The NAD service centre appears to be aware of this, and said it is due to a heat sensitive switching component. I was hoping to find out if the T2 monitor function could just be disabled, but haven't had a response yet from NAD.

  • acimon Oct 06, 2008

    My T770 has the same problem... you guys mentioned that the NAD service center was already aware of the issue, but can't they fix it? I had that problem for a few years, it seems to get worse over time.

    I would really hate to have to throw away my receiver... but if I'm forced to, I sure won't get another NAD. It worked well for about 5 years, that's it...


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The best solution for this problem is to throw it away and never buy nad again. its junk.

Posted on Jul 22, 2009

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1 Answer

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Look for a button labeled 'tape monitor'. That is what the T2 monitor is. When you press that button, it will toggle on and off.

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Hi i cant get any sound out of the unit from the audio part or dvd could something be unpluged i did play with some settings


Check that speakers are turned ON and then look for inadvertent selection of Mute or Tape Monitor.

I doubt any cables jumped off spontaneously from you playing with settings.

Just the same, go through all of the setup instructions before we assume a hardware problem.


If the unit appears to be malfunctioning due to power or internal issues...

Generally speaking, an amp protects itself from heat, shorts and overloads.

Overloads can be from excessive periods of high output and shorts would be wiring issues or a speaker blowing up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.

If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.

If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced hands-on tech.

Check tyhe

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Now tell the NAD you have a subwoofer. Page 15, Figure 13, etc. and Page 18 - 19.

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Error s10

Did it ever work properly? If not, let's get down to basics and set it up for the simplest configuration it can have: FM source in stereo with front left and right speakers, no Surround Mode, no DSP, no Tape Monitor, no Mute, Volume not turned all the way down. Does that work?

Do you have Surround Speakers defined in System Setup A? If not, only Dolby Surround or Off are valid Surround Modes.

Is T2 Monitor indicator lit? Press the Tape-2 Monitor.
Is there acceptable sound other than during Speaker testing? NO? Is MUTE On?

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Is there an indication of protect mode on the front display? Have you checked to see if the tape monitor switch is on? Did you hear a click when you first turn on the receiver followed by a second click?

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No sound

Bad regulators in the power supply or the capacitors in the power supply are drying up. Needs to be taken into a shope as there are no user serviceable parts inside these units good Luck

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