Question about NAD Audio Players & Recorders

1 Answer

Sparks from the speaker wire and no sound through the left just a hum

I have a NAD amplifier and i noticed the wires from one of the connectors had come loose on the back of the speaker. When i attached it it made a pop and a spark and the speaker just hummed with no sound coming out. I swapped the speakers to test if it was the speaker or the amp and the same problem existed. This is strange as the amp worked perfectly. Maybe one of the kids has knocked it over or something, anyone got any ideas to why this issue has arisen. Also when touching the left speaker wire to the right speaker wire it sparks.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • NAD Master
  • 73,619 Answers

Audio output amp section circuit to your amp [left] has damaged. Check and replace damaged component/s there. The work will is a skilled one. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy Pull up older posts. Surf the site with patience.
http://electronicshelponline.blogspot.com/

Posted on May 11, 2014

6 Suggested Answers

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,
a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 2 Answers

SOURCE: nad 302 amplifier

sounds to me that the vol control has lost its earth end connection So yes its a problem with the dial control You couls try some contact cleaner But better still lift of the lid and base if possible while the amplifier is not plugged into the power socket and see if you have a dry joints around the vol control pot regards Trev

Posted on Mar 14, 2007

fixyathing
  • 341 Answers

SOURCE: Sound through one channel only.....NAD 310 Amplifier

If swapping of left and right input sources and left and right speakers does not help...you might have a bad channel in your amp.

Posted on Sep 25, 2008

  • 1 Answer

SOURCE: Speaker Loss Of Sound

Works great after this solution with the cables.

Thanks

Posted on Jan 22, 2009

  • 4 Answers

SOURCE: NAD C272 Amplifier: Intermittent left channel

My solution was actually indeed the output protection relay. What I did was to open up the relay and use contact cleaner and a very fine abrasive to clean the contact surfaces of the relay. After that, the problem was gone!

The way to diagnose this for me was to run the amplifier open until the problem recurred and to simply tap the relay's box. The sound came on immediately, and I was convinced.

Posted on Feb 05, 2009

Grubhead
  • 5015 Answers

SOURCE: Muffled/bad sound on 1 channel of Marantz PM4400 amplifier

Go directly to the main amp, follow the leads from the speaker terminals. And you should find something on an heatsink. If there are two transistors see if they are running hotter than the other channel. If you see any damage to them (compare with good channel) replace both!
If all you see is a black box with pins coming out of it you need to replace that. They sometimes have the letters STK on them.
Replace both types with the letters and numbers of the same type. IE 2SC 1220 or STK 589.

Posted on Feb 16, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

3 Answers

What would cause a buzz in speakers?


There are many causes of buzz, so it should be checked step by step :
- Bad connection on the input connector, or cord.
- Amplifier, basically have the block diagram like this. View image.25850665-l1qpqmriditabltrjczr2eku-2-0.jpg
If in one block damage, buzz can be heard.In the amplifier.
Generally occurs in the PSU and / or power amplifiers.
Fix it to the experts,because it requires a good knowledge of electronics.
Blown speaker cone, does not cause a buzz.
Short circuit along the wires supplying the audio, it will not cause any sound in the speakers, including the sound of music.
Try also, disconnect the input connector, whether the buzz is still audible. If after the input connector is removed, the buzz disappears, the possibility of buzz came from another device before the amplifier.

Sep 05, 2015 | Behringer Xenyx 1202 12-input 2-bus Mixer...

1 Answer

Boston Acoustics CS26 Speakers sound cuts out for over a second at higher volumes tested using two different amplifiers same problem. Does not seem to be related to amp distortion:clipping protectio


It sounds like the speaker cones(if that is what they have) get hung up against the back of the case. No vibration=no sound. Check to see that there is no hum adding to the pressure on the speakers. Check to see that the speakers are hooked to the correct impedence output of the amplifier. Also, wire length affects impedence and shortening the wires might help.

Jan 22, 2013 | Boston Acoustics CS26 Speaker

1 Answer

I run a sub and two sets of speakers on speaker B of my NAD C740 through a speaker selector. I think there has been a short circuit caused by the + and - wires touching. The left channel no longer works on...


Check that both left and right channels work on A speakers. If they do, the amplifier is probably good and your problem may be outside the amplifier. Try swapping the left and right speaker connections at the back of the amp to see if the problem changes from left to right. this would tell you if the problem is in the amp or out to the speakers. Hope this helps

Jan 04, 2011 | NAD C740 Receiver

1 Answer

Only get sound out of right side both a and b


Good day sir, Hi, your Philips receiver trouble can be any of the ff:
  1. your receiver left fuse is blown, check if it has a user fuse at the back. or
  2. your main IC amplifier for the left channel is bad. you need to replace that IC, but check first the wiring of the speakers.
  3. Check your receiver left speakers if it is producing a soft hum, to do this turn down the right channel, or adjusting the balance knob to the left, or simply remove the speaker connection of the right channel. place your ears on the left speaker as you adjust the volume up and down, do you hear a soft hum that goes up and down also? If yes the problem is on the source section before main amplification, usually the pre-amplifier stage, If you hear no hum at all. problem with the main left amplifier. The main amplifier is usually a single IC for both left and right channel, OR one IC amplifier for the left and one for the right, in both cases, replace the bad IC.

Jan 21, 2010 | Philips Audio Players & Recorders

1 Answer

Eratic volume


Hi....
ONe of the leads on the CD cable has a broken ground (thats why it hums loud)
The speaker that has only the tweeter working: The woofer is blown in the speakers.
Check also for good solid wire connections at both ends of your speaker cables

Mar 29, 2009 | NAD C372 Amplifier

2 Answers

Grounding noise


Pull bottom panel and get some canned air and spray around circuit board .May have a shorted capacitor to ground.Might have to use repair directory on this site.

Nov 18, 2007 | NAD T973 Amplifier

1 Answer

Humming from speakers when CD player running


Yes, The humming is always there you just can hear it better when the cd is playing. The humming is caused by the electrical system in your car. There is an inline filter you can buy and insert it between the car's power source and the head unit. I had a head unit I bought that was absolutly terrible until I installed that filter. Also if you did a do it yourself job on your amp wiring it is usually best practice to run your RCA cables on the opposite side of the car as your power cable. You can also purchase shielded spark plug wires which is a source of noise usually of a different kind tho. First make sure you have a good ground. This means that you have grounded your amp to bare metal not painted metal. If that didn't work put in the inline filter on the head deck as they are only $20 available at radioshack. If that doesn't work, go back an wire your car right this time and put the power and RCA on opposite sides of the car. If you still have that hum it may be the spark plug wires but that sounds more like static than hum. You have a text book case of alternator hum... Hack

Jul 11, 2007 | Xtreme Sound WMS336 CD Player

2 Answers

Nad 302 amplifier


sounds to me that the vol control has lost its earth end connection So yes its a problem with the dial control You couls try some contact cleaner But better still lift of the lid and base if possible while the amplifier is not plugged into the power socket and see if you have a dry joints around the vol control pot regards Trev

Mar 14, 2007 | NAD CI9060 Amplifier

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

Related Topics:

70 people viewed this question

Ask a Question

Usually answered in minutes!

Top NAD Audio Players & Recorders Experts

 Grubhead
Grubhead

Level 3 Expert

5011 Answers

The Knight
The Knight

Level 3 Expert

73619 Answers

Larry Stiles
Larry Stiles

Level 2 Expert

287 Answers

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

Answer questions

Manuals & User Guides

Loading...