282 - only one channel - why?

Posted by: Jez R Oakley on 26 May 2017

Hi, 

Took delivery of my 282 today, plugged it in, powered it up and hit play.

Only getting sound out of the left channel.

Called Naim and confirmed it was connected properly.

I put my 202 back and everything works fine so it can only be a problem with the 282.

Going to have to return it but what could be causing such an issue?

 Thoughts please...

 

 

Posted on: 26 May 2017 by Adam Zielinski

Balance knob turned all the way to one channel?

Posted on: 26 May 2017 by Finkfan

What's the rest of the system Jez? 

Posted on: 26 May 2017 by Jez R Oakley

I've basically just swapped a 202 for a 282 with exactly the same connections. 282 powered by HiCap and then 200

Posted on: 26 May 2017 by Jez R Oakley
Adam Zielinski posted:

Balance knob turned all the way to one channel?

Unfortunately not that simple. I get the left channel only but when I hit "mono" I get the 'full sound' but only out of the left channel.

Posted on: 26 May 2017 by Finkfan

Posted on: 26 May 2017 by Finkfan

Are the connections as above? 

Posted on: 26 May 2017 by Adam Zielinski
Jez R Oakley posted:

I've basically just swapped a 202 for a 282 with exactly the same connections. 282 powered by HiCap and then 200

Try taking the HiCap out - NAP 200 will power 282.

Posted on: 26 May 2017 by Jez R Oakley
Finkfan posted:

Are the connections as above? 

Yes, correct HiCap output and pre input.

Posted on: 26 May 2017 by Jez R Oakley
Adam Zielinski posted:
Jez R Oakley posted:

I've basically just swapped a 202 for a 282 with exactly the same connections. 282 powered by HiCap and then 200

Try taking the HiCap out - NAP 200 will power 282.

I've considered that but why would the 202 be OK if there was a problem with the HiCap?

Posted on: 26 May 2017 by Jez R Oakley
Jez R Oakley posted:
Adam Zielinski posted:
Jez R Oakley posted:

I've basically just swapped a 202 for a 282 with exactly the same connections. 282 powered by HiCap and then 200

Try taking the HiCap out - NAP 200 will power 282.

I've considered that but why would the 202 be OK if there was a problem with the HiCap?

Tried it. Same problem when powering the 282 from the 200.

Posted on: 26 May 2017 by Richard Dane

Is it on all inputs?  It could be a relay on one channel has stuck - rare, but annoying if/when it happens.

Posted on: 26 May 2017 by james n

Make sure the link plug in link 2 socket is seated correctly - pull out and then push back in again (with the Hi-Cap powered off !) 

Posted on: 26 May 2017 by Jez R Oakley
Richard Dane posted:

Is it on all inputs?  It could be a relay on one channel has stuck - rare, but annoying if/when it happens.

Tried on CD and HDD inputs but it makes no difference.

Posted on: 26 May 2017 by Jez R Oakley
james n posted:

Make sure the link plug in link 2 socket is seated correctly - pull out and then push back in again (with the Hi-Cap powered off !) 

Yes, tried re-seating it. (200 only powering the 282 now)

Posted on: 26 May 2017 by james n

Ok - I take it when you say you've tried different sources CD and HDD that you mean you've tried two different sources and cables (not the same one and same cable into the different inputs) ?

Only other thing to suggest is to fully power down, disconnect NAPSC and 200 for 1/2hr or so then re-connect and power back up. NAPSC on first and then 200. If that doesn't work then it's back to Naim...

James

 

Posted on: 26 May 2017 by Jez R Oakley
james n posted:

Ok - I take it when you say you've tried different sources CD and HDD that you mean you've tried two different sources and cables (not the same one and same cable into the different inputs) ?

Only other thing to suggest is to fully power down, disconnect NAPSC and 200 for 1/2hr or so then re-connect and power back up. NAPSC on first and then 200. If that doesn't work then it's back to Naim...

James

 

Happy to try anything. What's the rationale behind that approach? Do you suspect a stuck relay or something?

p.s.

(Now back to 202 + NAPSC + 200. The NAPSC made a huge difference when I added it)

Posted on: 26 May 2017 by james n
Jez R Oakley posted:
james n posted:

Ok - I take it when you say you've tried different sources CD and HDD that you mean you've tried two different sources and cables (not the same one and same cable into the different inputs) ?

Only other thing to suggest is to fully power down, disconnect NAPSC and 200 for 1/2hr or so then re-connect and power back up. NAPSC on first and then 200. If that doesn't work then it's back to Naim...

James

 

Happy to try anything. What's the rationale behind that approach? Do you suspect a stuck relay or something?

p.s.

(Now back to 202 + NAPSC + 200. The NAPSC made a huge difference when I added it)

Could be a stuck relay as Richard mentions but sometimes the logic board can get itself a tad confused so a full power down lets everything fully discharge and reset. It may save you sending it off for repair.

Hope you get the 282 sorted. Lovely pre-amp. 

James

 

Posted on: 26 May 2017 by Jez R Oakley
james n posted:
Jez R Oakley posted:
james n posted:

Ok - I take it when you say you've tried different sources CD and HDD that you mean you've tried two different sources and cables (not the same one and same cable into the different inputs) ?

Only other thing to suggest is to fully power down, disconnect NAPSC and 200 for 1/2hr or so then re-connect and power back up. NAPSC on first and then 200. If that doesn't work then it's back to Naim...

James

 

Happy to try anything. What's the rationale behind that approach? Do you suspect a stuck relay or something?

p.s.

(Now back to 202 + NAPSC + 200. The NAPSC made a huge difference when I added it)

Could be a stuck relay as Richard mentions but sometimes the logic board can get itself a tad confused so a full power down lets everything fully discharge and reset. It may save you sending it off for repair.

Hope you get the 282 sorted. Lovely pre-amp. 

James

 

Thanks, it certainly sounded highly refined out of the left channel!

Posted on: 26 May 2017 by Jez R Oakley

Tried leaving it for an hour completely disconnected and powered off.

Reconnected and powered up but no difference.

The good news is it's less than two years old and should still be under warranty so hopefully I can get things sorted out.

Rather disappointed to say the least...

Posted on: 26 May 2017 by james n

That's a shame. At least your 202 will keep you going whilst the 282 is away. 

Cheers

James

Posted on: 26 May 2017 by Quads

Hi, 

you may have tried this but if you are using the din input (on the 282) for your CD player, you might try the rca in put for this or another source...

Posted on: 27 May 2017 by Jez R Oakley
Quads posted:

Hi, 

you may have tried this but if you are using the din input (on the 282) for your CD player, you might try the rca in put for this or another source...

I'm pretty sure it's the output as when I switch the 282 to mono, I get both channels out of the left speaker.

Posted on: 27 May 2017 by Jez R Oakley
james n posted:

That's a shame. At least your 202 will keep you going whilst the 282 is away. 

Cheers

James

Indeed, the 202 is still an excellent bit of kit. Leaving the HiCap out of the picture for a few days but then will be treating myself to a 'free' power supply upgrade later in the week.

Meanwhile, the 282 will soon be taking a trip back to Salisbury.

Reminds of the old Peter Cook and Dudley Moore one legged Tarzan sketch. "Mr 282, you are deficient in the channel department to the tune of one!"