Question about Audio Players & Recorders

3 Answers

Receiver shuts down after loud bang

I have a NAD T 773 receiver and it makes a loud sound like "bang" and shuts down completely. Could not operate from remote or front of unit. Red light upper left corner of unit came on. Powered down from front of unit and unplugged for a few minutes. Plugged back in and started unit with the remote and it turned back on. Sound was very bad so turned unit off with remote and back on again and sound was ok. This happened a few days ago for the second time and do not know when it will happen. Unit is enclosed and nothing is around or on top of it so there is good air movement. Unit is still under warranty but a massive pain to unplug all and replug again. Could it be a overheating problem? Should I take it in for service? Let me know what you think. Thanks

Posted by on

  • swandizzle Nov 27, 2007

    I have a Yamaha Natural Sound AV Receiver HTR 5630. It is about 4 years old. I have never had a problem until a week ago. There would be a loud crackling bang out of one of the speakers and then the unit would shut down. I would turn it back on and sometimes it would be fine and other times it would do the same thing within 10 seconds.

    We have had problems with a new microwave we recently bought. Sometimes when we start the microwave it will blow a fuse and shut down everything in the family room Receiver, tv, etc) Could this have fried the receiver? Please help.

×

Ad

3 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

You said it's bang and shut it off, try also to check the current requirment of your unit maybe current req can't stand for your loud audio.. peace!

Posted on Sep 25, 2007

Ad
  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 11 Answers

You said Unit is enclosed!! Does that mean it is inside something? Receivers & Amps need to have a clearance above them so air can circulate, otherwise you'll have an overheating problem. You also might have some of your wires crossed which will cause the Amp to shut down. Look at all your connections and make sure they're correct, including speaker wires.

Posted on Sep 23, 2007

Ad
  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

No fix to this problem. When my T763 had the same symptoms I left it with the dealer who sent it on to service. It ended up being scrapped. So I'm afraid this is the end of your receiver unless your techies are better than the ones who worked on mine.

Posted on Aug 11, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

VSX 60 pioneer receiver shuts down on loud action dvd


Sounds like a bad speaker or speaker that is being over-driven.

Jan 09, 2013 | Pioneer Audio Players & Recorders

1 Answer

The left main channel not working. hook any speaker to it and putting my ear close, it has a very low hollow sound, almost a hum. would there be fuses, a reset, or something on each channel or something...


There is no seperate fuse but it seems likely that the left side preamp or the power amp section had opened up a fusible resisitor that could have shut the section.
Now the only way out is to take a voltage or signal test with the right - working- channel as a reference . Please attempt only if you are familiar if not it will end up with further damage as the sections are very delicate. Testing with a signal will confirm the faulty section to narrow down your search.

Aug 23, 2011 | NAD T742 Receiver

1 Answer

NAD C320 system sounds like a cheap, tinny tranny


Let's distill this down to its simplist configuration. FM source, stereo.

BTW, a search for NAD 440 only brings up a C440 >>>Tuner<<, no receivers. Are you sure about that model number? The only receiver model numbers with x40 on the NAD website are the C340 and C740, neither of which has a link to a manual (go figure). I have the C740 manual, so I'll use it for a loose reference.

If it still does what you're describing in a basic configuration and the volume control seems to affect it like you belatedly mentioned, I'd suspect a noisy volume control or some other control in the receiver (like a rarely used Tape Monitor switch) that is always there in the circuit but may have oxidized contacts and responds sometimes to burn-through.

Set the volume at a medium setting and repeatedly operate every switch, knob and button (one at a time) to gauge its effects on the sound. You may find one is the culprit. Then it's a matter of accessing it for a shot of contact cleaner.

If you have jumpers between Pre Out and Main In, it might be a good idea to reseat them, too.

Mar 23, 2010 | Audio Players & Recorders

1 Answer

NAD T747 Shutting Down


get a fan or do a re-stack...open the back of the e-center, Yes it will do a thermal shutdown... just like 3 mile island

Dec 10, 2009 | Audio Players & Recorders

1 Answer

Receiver powers on then shuts down. Any mode (CD AUX,VIDEO,etc) will cause same result. Sometimes FM mode will keep receiver on for longer. Once speakers are connceted, shut down happens no matter which...


If it's not happening when your speakers are disconnected, your problem is not in the receiver, it's either a wire touching at the terminals on the rear of the receiver, or a bad voice coil or crossover in your speaker. If you re connect the speakers and it immediately cuts out, disconnect all speakers and reconnect one by one testing the receiver each time until your receiver shuts off or remains on with all wires connected and you've fixed the problem. If it cuts out, disconnect the problem speaker at the speaker and test again. If it stays on, problem is in the speaker, if it still cuts out, problem is in the wire. Hope this helps. If you need further help, post a comment and I can help you troubleshoot some more.

Aug 11, 2009 | NAD C730 Receiver

1 Answer

NAD T773 Shuts Down in 1-5 secs


Your problem is a common symptom of loose connection or cold solder and cleaning problem this is the main caused of no sound or automatic shut off for how many seconds..Cold solder issues - each component is soldered into small holes on the printed circuit board which in turn connects said component to the other components. Due to time, heat, use, some solder joints would be cracked or loose. It is possible that the cold solder is still minimally connected (hanging by a thread). When the receiver turns on heat would be generated which would be sufficient to further loosen up the solder joint to the point it no longer provides electrical contact. Jarring the unit creates movement inside enough to re establish the contact, sometime good enough sometimes not enough. Again, since the unit still operates (sometimes) then it is highly probable that there are no defective components. As you have surmised, it is possibly a loose connection, solder joints are "connections" except that molten soldering lead is used to attach/connect the component to the board, "loose connection" in this sense is equal to "cold solder". Again on the assumption of no defective parts, then seeking a more experienced buddy for the soldering might be to your advantage. This is of course in addition to the possible electrical hazards when repairing.... Good luck: Regards, VOTIT

Jun 08, 2009 | NAD T773 6.1 Channels Receiver

2 Answers

NAD T760 remote control


You could buy a universal remote control and try the following NAD audio remote codes to program it with:
NAD
575 773 975

I read somewhere else that the 'Supplied Code for NAD receivers' was 033, but cannot confirm this. Try the first 3 first.

Universal remotes tend to be pretty cheap, certainly cheaper than buying one from NAD.

Good Luck

Chris (ziraffa)

Dec 20, 2008 | NAD T760

1 Answer

My NAD T763 turns on but no sound comes out of any speakers


HI,
I had the same problem and AH reset did not work. IS there anything else i can do?
Thanks
Adrian

Dec 02, 2008 | NAD T763 Receiver

2 Answers

Loud humming on my tv and dvr with ny nad 761


The problem is the capacitor on the DSP board C107 2200mf / 16 Volts. Try replacing it and it should be fine

Oct 25, 2007 | NAD T761 Receiver

Not finding what you are looking for?
Audio Players & Recorders Logo

Related Topics:

596 people viewed this question

Ask a Question

Usually answered in minutes!

Top Audio Players & Recorders Experts

 Grubhead
Grubhead

Level 3 Expert

5547 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

The Knight
The Knight

Level 3 Expert

75846 Answers

Are you an Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...