Question about Audio Players & Recorders

1 Answer

Nad 218 thx power amp keeps blowing ac plug fuse

Posted by on

  • barnone1 Jun 05, 2008

    amp sounds out of phaze only on one chanel , or like a miss tunned radio station .

    disconected system and took a breif look but saw no phisical damage.

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 1,512 Answers

Hi there. From memory they had bridge rectifier problems with them going short circuit. Check them first. Sometimes the toroidal transformer can go a shorted turn, in turn blowing primary fuses. try to soft start it whilst it is blowing fuses, Best bet is to make up a special lead that has a 60w light bulb wired in series with the mains power supply(or across the fuse holdwer that is blowing:). Limits the power in the circuit to ... well you guessed it 60 watts.

check em out and let me know.

regards
Graeme

Posted on Apr 27, 2008

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,
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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Can i hook up a power amp to my Nad 7155 receiver and how


If the Nad has pre-amp out sockets that are currently connected to the power amp in the receiver. Then you can sever those link and put the pre-amp out into your Aragon inputs.
Otherwise I don't see how you can connect the amp.

Aug 10, 2016 | NAD Audio Players & Recorders

1 Answer

Receiver keeps going to standby


I don't know about the newer receivers but this sounds like an arching OFF/ON power switch that was a problem on Pioneer receivers years ago. I would bypass the switch and see what happens.

1. Unplug unit from wall.
2. Jumper two wires going to off/on switch using alligator clip with insulated boots on clips.
3. Plug amplifier into disconnected circuit breaker/fuse protected AC strip.
4. Plug AC strip into wall outlet, turn AC strip switch ON and see if problem disappears.

Feb 20, 2013 | Insignia 200W Stereo Receiver

2 Answers

My kenwood reciever kr-a4070 keeps blowing a fuse


have you tried a different outlet? something my be wrong internally

Jul 31, 2012 | Kenwood Audio Players & Recorders

1 Answer

Nad t753 av reciever, mains power off then back on think had power surge have i blown a fuse in system. amp turns on but then 2 sec later turns off . can i take the casing off to replace fuses?.... dan


Blown fuses don't self-heal. If power comes back there is no blown fuse.

Generally speaking, an amp attempts to protect itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.

Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; 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 and competent hands-on tech.

Check for loose speaker connections at the speaker as a root cause for intermittent shutdown.

May 29, 2011 | NAD T753 Receiver

1 Answer

Goodmans GDVDR319 Was unplugged recently & whn plugged back in wouldn't come back on. Each time a new fuse has been put in the plug. In the past when it has been unplugged it has taken between...


You don't say if it's blowing the fuses.

If it is, it's dangerous to keep turning it on until you have someone resolve the problem.

If it comes back on after a few days of idleness the fuse isn't blowing as they rarely self-heal.

Have you tried another power cord?

Jan 25, 2011 | Audio Players & Recorders

1 Answer

My NAD 7175PE died the other night meaning that there are no lights, no LED, no signs of life. It did get rather warmmer than normal but I would stop short of calling it HOT. Is there an internal fuse...


There are two fuses in this receiver, but the one most likely to be at fault is in the input AC circuit. This is a 5A, 125V. The fuse for the amplifier section is 15A, 250V.

Jun 09, 2010 | Audio Players & Recorders

1 Answer

I have a pro-sound 1000 which keeps blowing plug fuses Can you let me know what fuse should be in the plug as this maybe the problem


The fuse in the power plug is there to protect the cable. The fuse in the plug should be the same as the cable. For instance a 5amp cable should have a 5amp fuse. If the fuse blows all the time the cable could be faulty or there could be an overload in the power supply (perhaps the transformer has failed) that is causing the supply to draw more amps than the cable and fuse can cope with.
WARNING fitting a fuse higher than the cable rating could cause the cable to overheat and catch fire!

Mar 07, 2010 | Audio Players & Recorders

1 Answer

I have the same problem. The fuse blows every time I plug the Sony STR-DE135 into the wall. I did not find the F901 at Radio Shack, so I bought a fast acting 5 Amp 125V Fuse at the Hardware store. It blew...


There is usually one or two normal clicks on power-up. A self-protection relay activates after a short delay for circuit and power stabilization plus some internal cheking for shorts and thermal issues.

If it keeps blowing fuses you are stressing it a bit more every time you feed it another one. I'd get it in to a Pro for repair.

Mar 02, 2010 | Sony STR-DE135 Receiver

1 Answer

Have a nearly 30-year old Akai stereo receiver AA-R30. Power light just stopped turning on. Opened up case and found main fuse between AC power cord and power transformer blown. When I replace the fuse,...


Look for shorted output transistors or possibly shorted rectifier diodes. An immediate fuse blowing up usually means that the power supply is the problem. Keep us posted.
Dan

Apr 08, 2008 | Audio Players & Recorders

2 Answers

Receiver fuse continuosly blows when replaced and powered up


Ir's not likely to be a resistor. Sounds like a shorted component in the power supply. A diode or bridge rectifier, or possibly a transistor or Regulator IC.

Hope that helps...

Geno

Apr 03, 2008 | NAD C720BEE Receiver

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

Related Topics:

623 people viewed this question

Ask a Question

Usually answered in minutes!

Top Audio Players & Recorders Experts

kakima

Level 3 Expert

98762 Answers

 Grubhead
Grubhead

Level 3 Expert

4678 Answers

The Knight
The Knight

Level 3 Expert

69718 Answers

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

Answer questions

Manuals & User Guides

Loading...