Question about NAD T743 Receiver

1 Answer

Nad 743 shuts off at -14db vol. Why?

I have 5 speakers hooked up. Is it anything in the setting of tone defeat?
Please help.
thnx
greg

Posted by on

  • Anonymous Apr 03, 2009

    my nad T743 last month started turning off when I would try to increase the volume from -16 to -19 db in a surround mode. Upon getting power back which would only last for 5 min at best I noticed the device selection had changed and was frozen not allowing me to go back to my setting.  I took it to the dealer.  They said for $350 they could fix it.  However, they said they did not know what was causing the problem.  I am on my way to retrieve my NAD.  I will attempt to find someone else to do the repair.




    This is sad.  I have had several NAD components over the last 20 or so years.  Never had a problem before.  I'm afraid the NAD reputation matters no more to them.

  • janus11 May 17, 2009

    mine does the same, when it's warm (more then 30 minutes on), control processor turns mad. A reset (video 6 + source down) recovers normal service... until next crash... It seems related to temperature, with a fan on top of it it works 2 hours while without fan sure I loose it after on hour max.

×

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

Mine got fixed by replacing the front panel PCB with control processor. Only 350€...

Posted on May 03, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

NAD T-763 receiver. cannot get surround sound. all speakers work. should the 7.1 and or surround be connected to the receiver and what else. stereo works fine....two front speakers, in stereo mode. ...


Have you looked at the manual? There is no internal source that would produce 7.1 audio other than the test tones. Attach a multichannel source according to ITS manual.

Register and download the manual for free at retrevo.com

http://www.retrevo.com/support/NAD-T763-Receivers-manual/id/8043bh646/t/2/

Apr 19, 2011 | NAD T763 Receiver

1 Answer

The amplifier has occasionally shut itself off due to overheating for the last 3 years (I've had it since 2005). But now it continuously shuts itself off and simly won' start up anymore. Does it need a...


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.

A heat sink is just a finned heat-conducting device for radiating heat to the air which should be flowing freely through the unit's ventilation holes. It can't break in normal use. But it CAN get clogged with dust reducing its effectiveness.

Register and download the manual for free at retrevo.com

http://www.retrevo.com/support/NAD-T743-Receivers-manual/id/8043bh636/t/2/

Page 6

"Choose a location that is well ventilated (with at least several inches to both sides and behind), and that will provide a clear line of sight, within 25 feet/8 meters, between the receiver's front panel and your primary listening/viewing position-this will ensure reliable infrared remote control communications. The T 743 generates a modest amount of heat, but nothing that should trouble adjacent components. It is perfectly possible to stack the T 743 atop other components, but the reverse usually should be avoided. Nonetheless, it is generally preferable that the T 743 stand alone. It is especially important that sufficient ventilation be provided; if you are contemplating locating the T 743 within a cabinet or other furniture, consult your NAD audio/video specialist for advice on providing adequate airflow."

If you're lucky, you haven't finally toasted it. If you have, a hands on tech will need to sniff sround (literally) to find the dead component(s).

Mar 06, 2011 | NAD T743 Receiver

1 Answer

NAD T763 - i turned it on and all the lights on the display lit up and stay on. It doesn't work at all !! Any suggestions?


Have you tried doing a factory reset?

1. With unit powered ON, press the VIDEO and TONE DEFEAT buttons.
2. Display will show "AH RESET DONE".
3. Power off (from rear panel switch) and back on.

Jan 29, 2011 | NAD T763 Receiver

1 Answer

How do I adjust the trebble on my Denon Receiver?


go to sound parameter in your parameter menu under the setup. There should be a tone control option, when there you can adjust the bass and treble by a variable decibel range. the range is -14db to 14db.

Jul 07, 2009 | Denon AVR588 Receiver

1 Answer

Yamaha RX V2400 keeps shutting off


When it shuts off, does it display anything on the front like "ck speakers" you could have a shorted wire or bad speaker. Sounds more likely than a bad receiver. Yamaha is pretty bulletproof in "self preservation" circuitry! about the only thing that takes them out is lightning and major power surges. I have been selling and installing Yamaha receivers since 1995 and have only ever seen one with a problem that was unrelated to power. and I've done hundreds. If your not using HDMI, and the Video portion of the receiver, I would definately keep the unit $ 1500.00 is no cheap receiver. Try disconnecting the speakers, then turn on the unit with a source connected like cable/sat/fios on then crank the vol and let it set, if it cuts out, yes you've got a problem internally, however, I would stronly suggest metering all of the speakers and wires for shorts. There is an internal fuse as well right near the power cord, you have to pop the top to get to it, If you have a multimeter check the fuse with resistance tone. If you get tone, you have a good fuse if not If you need to replace it. They can be found at Radio Shack etc. If the fuse is OK, chances are you've got bad transistor(s) and needs to go to service. Repair should be under 200, well worth it. If you have further questions, post a comment and I will get back to you ASAP. Hope this helps

Apr 21, 2009 | Yamaha RX-V2600 Receiver

3 Answers

Yamaha RX-V2500 completely shut down


Sounds like the volume control on zone 2 is your culpret. You should set up zone 2 to have a "fixed" output instead of "variable" it's in zone 2/3 setup. whats happening is you are overloading the volume control from the zone volume on the receiver and getting feedback to the receiver and shorting it out. What you do is put zone 2 to fixed output. set the vol control to 3/4 then adjust the vol to relatively loud and exit out of settings. this will be your max volume setting. Now, on to your problem.Unplug the receiver. There is an internal fuse that could have blown, not to likely but it's possible. You have to take the top off the receiver with a #1 phillips or a T10 torx they vary. It's about 7 screws, pop off the top and look from front to back, you will see 1 or 2 fuses near the AC plug port. Sometimes they are gray or white and you cannot visibly tell if it's bad. If you have a multimeter, set it tone resistance. Then put your leads on either side of the fuse, if you hear tone the fuse is ok. If not check your leads by touching them together and you will hear tone then test again. If you don't have tone, your fuse is bad. Radio Shack should stock the fuse you need. If you don't already know this, there are 2 Power switches for your unit. Front of receiver bottom left corner "Master Power" and normal Power switch "Main Power" check them both. If your fuses are good and power is good, you have bad transistors internally and it needs to go to service. check www.yamahausa.com support and service, and you can find the closest authorized service center to send it to. If you mail it out directly to the service center rather than taking it to a dealer, you will save some money and get it back faster. Lastly, pull your zone 2 volume control and look for black marks on it or white chalky substance. "oxidation". If you don't mind spending a little money on the system, hardwire the speakers thru and replace the volume control with an IR receiver. If you could control the zone from the zone by pointing the remote at the volume control you had an IR vol control. You really didn't need the vol part. Xantech or Proficient make good IR receivers that aren't too expensive and will keep this from happening again. If you need any more help, I am a Yamaha Dealer, let me know where your located and I can send you to a good service center. Just post a comment and I'll get you the info you need. Hope this helps

Apr 19, 2009 | Yamaha RX-V2600 Receiver

1 Answer

Power on T743


Just had my t753 in bits... sounds like its overheating to me. Check that the fans on the bottom still turn and aren't clogged up with dust. Make sure that it has plenty of ventilation.

hmm, also try unplugging everything and leaving it on and see if it still freezes? ie check you're cabling is ok, there are no shorts from bare speaker wires etc...

Could try resetting it too? (in each case hold the buttons for 5 seconds then release)
- Firmware version: hold video 6 and tone control
- Reset DSP: video6 + tone defeat
- Reset completely: video6 + right source button (this will wipe all settings - hold for 5 seconds, release and then unplug from the wall or turn off with the rear power switch)

Nov 23, 2008 | NAD T743 Receiver

1 Answer

Nad 214 amp


problem is- intermittent speaker relay. You can cleaned contacts or better upgrade relay to better one (sealed)  Dariusz

Jan 03, 2008 | NAD 712

2 Answers

Outdoor speaker hook-up


Go into the manual setup on the GUI then go to the zone 2 and zone 3 setup. If you are using only the power from the receiver to power the speakers, make sure the setting is for Zone 3 amp "INT" if you still have no volume, on the front of the receiver look at the display, make sure "zone 3" is lit up then use the small remote and turn up the vol. if it's on you will see "zone 3 vol" and the bar going up it should be ok. if it says "fixed" it thinks you have an external volume control, if you do, make sure it's "on" at about 12 o'clock and test. If not, you need to switch it in the on screen "menu" or "GUI" button, follow to zone 2 & 3 vol control and make sure it is set to variable. If you still have no vol post a comment and we can dig further. Hope this helps

Aug 18, 2007 | Yamaha RX-V2600 Receiver

1 Answer

Keeps shutting off


are you able to check whether any of your speakers may have been blown? or have a direct short to ground ..this usually indicated by the amplifier protecting itself and shutting down,, try un plugging one speaker at a time and you may find that it is one of the speakers ....then get a replacement or get it repaired

Jul 09, 2007 | Aiwa AV-D97 Receiver

Not finding what you are looking for?
NAD T743 Receiver Logo

Related Topics:

489 people viewed this question

Ask a Question

Usually answered in minutes!

Top NAD Audio & Video Receivers Experts

gaucherre

Level 2 Expert

180 Answers

Al Kizina

Level 2 Expert

168 Answers

Brad Brown

Level 3 Expert

13561 Answers

Are you a NAD Audio and Video Receiver Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...