20 Most Recent NAD T762 Receiver Questions & Answers

if the power flows properly ,all fuses are okay in side the unit ? may be amplifier circuit is damaged .just remove all the wires of out put speakers,chk the speaker by connecting a normal battery cell 1.5 volt to spkr wires and feel the the sound ,if sound comes by connecting bateery cell, means speakers are okay,chk each pair of speaker wires of ur system,if any pair of wire of speaker has any cut of short connection it will nor let the sound come from any other as well.

Remove the power plug first, try to find the Battery inside the unit,Remove it, just for a minute, or two, and put it Back, hope it work again.if you don,t find in the users manual ,how to reset !

What cable did you hook up your dvd? The 5.1 sound works only with optical cable or HDMI. Check in the input settings wich one is selected. With the analog cable ( Stereo RCA) is not working. Good luck!

this is an internal protection feature, so that your speakers are not overloaded and blown out

hello my cuestion is that mij power is green ,and i haven nothing on my display?

greetz
paul pols

Hello Hans,
I did have that problem too, just 1 month ago (after 5 years of working properly). The importer in Holland can solve it, but it will be expensive. I paid around 300 euro for it. They flashed the firmware to the latest version, put some new cables in and so on. After that the problem was solved. But it isn't clear where the problem exectly came from (they said maybe from the mainboard or powersupplies in the receiver).
Now I have the receiver back and the sound is good again, no more problems with a strong POP from the speakers when I'm switching channels (on TV) or surround modes.
So if you don't have the money to buy a new one, I will advise you to send it to the dealer for an good overall maintenance.
Good luck!
Arthur
(Holland)

Since the problem appears only after the unit has been run for a while, I'd be looking for any part close to a heat source. The odd behavior suggests that there is noise on the data lines for the volume control chip and the digital processing areas. Look for a bad 5V regulator +/or bad caps on the 5V line. Also check for poor solder connections in the power supply and final output stages.
Keep us posted.
Dan

If you can solder, examine the pins for the display itself. In particular, look at the pins at either end. These are the power and ground pins. These often develop poor solder connections. Try resoldering these pins and update this with the results.

Dan

I have the same headphones. I went to Batteries Plus and purchased a similar battery, NUON, NU67, 3.6v 320mAh. The original battery is 3.6v 280mAh. The 320mAh holds the charge longer. You must swap the connector from the old battery to the new battery in order tomake it work. This can be done two ways, carefully removing the connector or cut, splice, solder and insulate the battery leads. Removing the connectors is tricky because the leads lock into place when inserted into the connectors. Good Luck.

Try reseating the prologic/output board. Second one from the right (from the front of the reciever), that fixed my no sound problems on many channels. You will have to take out a few screws to remove and reseat it, and while you are at it clean the connections.

Go to this website, make an account, go to support, help center. Thenfollow the instructions and you might get your answer.

Hope this helps. :)

You have a fault in the power amp. Identify the faulty channel by following the input leads. As, a stereo amp is basically two mono amps put together. You can compare the bad channel with the good one. First thing to do is a visual look around. If you see something odd looking in one channel and it's the faulty one, compared with the good channel, you might have found the cause. Look at the devices or device on the heatsink especially. If nothing stands out, the next thing to do is test the channels. You can do this in two ways. First, by touching the parts on each channel (with power on) with an insulated screwdriver. If you get a buzz in one channel and nothing in the bad one, in the same places of course! You might have located the faulty device. You can do the same with a volt meter. The readings should be the same in each channel. Work forward from the end of the preamp stage. Don't bother with the power supply parts, as they are common to both channels. By the way, don't short anything!

Distortion is categorized in Hum, Motorboating etc. Anyway see page 9 of owner manual for help. NAD C325BEE AMPLIFIER OWNER'S MANUAL ' ManualsLib For further help see page 24 of Service Manual NAD C 325BEE SERVICE MANUAL Pdf Download ' ManualsLib

I have nad t748 but not switching on the power on tha auto turn off