Question about NAD T761 Receiver

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Optical Audio problems with T770 NAD Receiver

I've had this receiver for years and has worked great. Has a digital coax input that has always worked flawlessly but the optical input has always been "iffy."

When I had it hooked up to the cable box, the audio through the optical used to take 5 minutes or so to "kick in" when the box was rebooted.

I then switched the cable box to the digital coax and moved my DVD player to the optical.

With my Denon DVD player it would work, but sometimes take10 minutes before it did so.

A year ago I bought an HD DVD player, (doh, now obsolete), but it worked great with the optical for a while, and then slowly started to take more and more time to work, (ie. no sound through the optical for about 10 minutes and then eventually it took 30 minutes).

Now there is no optical audio at all.

Thoughts?

I'm assuming the problem lies with the receiver as all 3 devices had "issues" with delay in getting the receiver to accept the optical audio.

I've had the receiver since it was new.

The thought of unhooking that thing and taking it in for sevice is daunting.

Thx.

Geoff Jones

Santa Rosa, California

Posted by on

4 Suggested Answers

SOURCE: Right surround channel not working in some modes

I had the same problem with the right channel.    It turned out to be a broken wire inside the receiver; it can be found connecting from the main PCB to the card for the 5.1 board.    After repairing the broken wire, it has worked fine.   

 

The harness connects the 5.1 low level signals to the board which are then redistributed to the amplifier section.     It is a bundle of wires in gray casing and with red, black and white wires (with shielding).

 

Find the offending wire, repair or replace and it should be fixed.

 

Hope this helps

Posted on Oct 27, 2007

Dipu007
  • 2110 Answers

SOURCE: Nad T770 Manual

http://nadelectronics.com/img/manual/NAD-T770(EN).pdf

Posted on Dec 18, 2008

  • 1 Answer

SOURCE: NAD T743: The digital channels stop working after a short time.

I had the same problem just once, about a week and a half ago. Don't tell me that this problem is going to get worse.

Posted on Feb 04, 2010

mikeywaf
  • 346 Answers

SOURCE: I have an NAD T755.

Hi - Not a flash of brilliance I know, but have you switched physically the HDMI cables between the PS3 and STB before connecting to the NAD?

Also - You might try (if you have them) a set of component cables from the STB to the receiver to try and see if the cable box may be having having difficulty with your NAD.

If you can let me know the results of cables switching I'd appreciate it. On a personal note I both love and hate HDMI, having had similar problems 8^)

Good Luck

Posted on Mar 26, 2011

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