No sound from left channel. - NAD Audio Players & Recorders

As you mentioned, recording on left channel is correct but monitoring on left channel is distorted, the problem seems in the Power Amplifier section / output stage. See the block diagram given on page 29 of manual.
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It may help you.

First, does TV sound without external sources work on both channels?

With the one RCA connected and getting sound, unplug it and plug into other channel. Any sound? If not, remove it and plug the other RCA by itself into the left channel. Sound? If yes, plug it into the right channel. No sound? If not, bad TV input.

If you do get sound on that other channel with a single RCA, then you have either a bad cable or bad source. Reverse RCA's on source and try same test, plugging each RCA into each input on TV one at a time.

If the TV is bad, you will get sound on just the left channel regardless of which RCA you use.

Hi,
Here's a solution to see if you have a problem with either your receiver or turntable.
The turntable has 2 RCA's one red for right channel, and one white or black for left channel, which plug into the back of the amplifier.

• Unplug both RCA from rear of amplifier.
• Plug in a cd or dvd player into those inputs on the amplifier, the sound will be lower but it will give you an indication if the amplifier is ok or not.
• If you have sound on both channels left and right then the amplifier is good
• If you still only have sound on left channel, then there is a problem with the right channel input on the amp.
  

• If your amp, is good, unplug the cd /dvd player.
• Put a record on and start playing the record
• Plug the white or black RCA from the turntable into the rear of the amplifier marked left, you should have sound.
• now unplug it from the left and plug in into the right red RCA socket, if you have sound the amplifier is working fine.
• if there is no sound there may be a problem with the stylus cartridge on the turntable
  
• now lets reverse the test
• unplug both RCA from amp.
• Plug the red RCA into the left socket on amplifier, if there is sound, turntable is working fine, if no sound there is a problem with either the stylus cartridge or that red RCA cable.
• now unplug the red RCA from the left side and plug it into the right side socket
  

• if there is no sound there may be a problem with the stylus cartridge or RCA cable.

I hope this helps

MobileJB

There are just two causes, one is the preamp, which can be easily checked by putting the right channel jack in the left terminal. If the sound is normal, then it's likely that the cartridge in the deck is bad, or some wire is loose. However if the sound is still poor then the magnetic cartridge preamp in the amp has a fault. These are normally a single IC, which will have failed. Find the preamp by tracing the wires from the imput socket to the PC board, which may be alone.

check wiring. if ok, swap speaker channels if ok, swap rca plugs, if ok. Bad channel on amp.

disconnect the cabel of left channel from your amp disconnect the cabel of right channel and put it in place of left channel if the problem goen your problem is in left speaker itself (cabel or speaker).if the problem excit the problem will be in amplifier output stage

Its easy. Jus from task bar click on that Speaker Icon of sound. In that you can select the left channel, right channel or both! Keep the pointer in middle and you will get sound in both the channels! Enjoy

Did you ever find the solution to the left channel issue? I have the same problem with mine.

all of the channel are resonding to the test. but you cant notice it bec 5.1 speakers, each channel are designed to respond to a certain frequecies.  the L/R channel your talking about have the mid-range frequecies so it responds clearly compared to other channels...

 

hope that helps...

I think you mean the left channel is out but when you use test tone, the sound comes from left and right channels through the right channel speaker. If this is case, the switching IC is malfuncting. Unit needs service