Trying to find if speaker or nap90 has a fault

Hi-Fi Corner
21

As the other amp isn’t a Naim do you have DIN (CD player) to RCA (amp) interconnect (proven working by swapping input channels) … so that the player can be eliminated as an issue?

22

Instinct suggests a dodgy connecting wire somewere in the chain, but let’s see.

1 Like
23

Here is my intermediate update

Test 1: Left Speaker on Right Channel

  • Power off the amplifier.

  • Disconnect the right speaker from the right channel.

  • Connect the left speaker to the right channel output .

  • Power on the amplifier and play audio.

  • left speaker worked and sounded fabulous

I then did a second test

Test 2: Right Speaker on Left Channel

  • Power off the amplifier.

  • Disconnect the left speaker from the left channel.

  • Connect the right speaker to the left channel output .

  • Power on the amplifier and play audio.

  • Zero sound from the right speaker

24

Speaker output socket has come loose from the circuit board inside the amplifier? Quite a common problem with the 90 if incorrect banana plugs have been used in place of the SA8s?

2 Likes
25

Hmmm. Interesting, but also very sad! I guess that sounds like I need a Naim specialist to fix that , which I guess will be like hens teeth in rural Australia!

26

If it is the speaker socket that has a dry solder joint to the main board then it should be fairly straightforward to fix it provided you can find someone who’s good at soldering.

2 Likes
27

We opened up the nap 90 and the board has burnt out.

Thank you to everyone for your help and guidance.

2 Likes
28

This topic was automatically closed 60 days after the last reply. New replies are no longer allowed.