Connection problems, help please?

Posted by: Armbored on 18 March 2016

Hi all,

Just have some lovely 'new' used equipment hooked up into my system but unable to get any sound out of it.

Boxes; NAC 202, NAP 155XS, Hicap and NAPSC and Stageline. Tried to connect as per the manuals but nothing is happening. I mean everything lights up but no sound. Hmmmm. I'm aware I can connect the 202 via the 155 but as I already have the other boxes, wanted to use them to reap the extra benefit.

Checked for sound with three different inputs; vinyl, CD and streamer. No joy from any of them so it's definitely a connection problem.  Maybe I will just have to start from one source with the 202 and 155, then gradually add the others one at a time.  Any help appreciated, thanks!

M

Posted on: 18 March 2016 by Skip

Start with the 202 and 155 and your source into different 202 inputs.   Is there a link plug out of place?

 

Get a sound and then add the rest.

 

Do you have a manual?  Have you read it?   You should.

 

Do you have a dealer?   You should.

 

Do you have a friend to help?

 

These power supply hookups are not intuitive on your own.   Good luck.

Posted on: 19 March 2016 by Richard Dane

As Skip suggests, put both link plugs (round 5pin as well as paddle 4 pin) back in place on the NAC202 and start off by just powering it off the NAP.  You will have just a SNAIC4 connected between NAC202 and NAP155xs.  Get a sound then move to adding the NAPSC.  If all well then remove the NAP from the 202, add in the Hicap to the NAC202.  Connect NAP to the Hicap pre-out.  Absolutely DO NOT leave the NAP still connected to the NAC when you have added the Hicap.  Signals route through the Hicap for best system earthing practice. Obviously at each stage of upgrade you should ensure all is powered down properly to avoid any mishaps.

Posted on: 19 March 2016 by Frank Abela

Please remember to switch off everything whenever making a change!

The final solution should be no link plugs in the back of the 202, as follows:

  • NAPSC plugged into the socket marked Upgrade 1 (napsc).
  • Hicap socket 4 (the one on the end) connected to the socket marked "Upgrade2 or link2". Use the SNAIC5 (5-pin) and the band should be at the 202 end.
  • Hicap socket 3 (next to the preamp socket I just used above) connected to the 155. You use the SNAIC4 for this, band at Hicap end.
  • Plug speaker cables into 155 (and speakers of course ).

 Switch on Napsc, followed by Hicap. Wait 30 secs. Switch on 155. Wait for twin pops or for preamp to stabilise. There should be no flashing lights. If there are, it is incorrectly wired up. If you get a hiss from the speakers then there should be no problem and it's something else.

If you still get no sound, it's most likely that you have plugged your source into an input which is not assigned. On a 202, CD and AUX can be either DIN input or RCA input. The default on a new item is DIN. If you're using ordinary 'phono style' (RCA) interconnects, then you need to program the preamp to take the input from there. To do this:

  • Set the volume to a sensible level - say 9 o'clock on the dial, no higher. Start your source playing.
  • Press and hold Prog on your remote until the volume knob starts flashing.
  • Let's say you need to switch the CD input. Press and hold the CD button. It will flash briefly (the number of flashes changes depending on which way you're switching). If I'm right, and you have music playing, the signal will come through from the speakers.
  • Press and hold Prog again to come out of Program mode.

Hope this helps!

Regards,
Frank.

Posted on: 19 March 2016 by Armbored

Thanks very much everyone,

Yes I removed the link plugs as I have the Hicap and the NAPSC plugged into the upgrade sockets.  I will go and check them all now and see where it takes me.

Cheers,

Mike

Posted on: 19 March 2016 by Armbored

PS, Where does the Snaic 5 from the Stageline go to on the 202?

 

Posted on: 19 March 2016 by hungryhalibut

Posted on: 19 March 2016 by Armbored

Yep that's where I plugged it in HH.  Still getting nothing...

Posted on: 19 March 2016 by Armbored

Got it, all working!  No thanks to my own stupidity :-)

Much appreciated folks, thank you

Mike

Posted on: 19 March 2016 by hungryhalibut

Out of interest, what had you done wrong? Don't tell me the mute was engaged...

Posted on: 19 March 2016 by Armbored

Hi HH,

Almost as lame...

I've come from an olive 72/140 setup and there is no power button on the rear of the equipment (you can see where this is going, can't you?)

Well, when I did the swtich on sequence as suggested, leaving the 155 until last as is normal, the Naim logo lit up when I switched it on at the wall. However, as I last resort I checked the switch at the rear... which of course was off. It must have been getting some power from the Hicap, then when I turned it on properly, the logo lit up more brightly.

I don't mind looking stupid, I'm getting used to it at my age

Posted on: 19 March 2016 by hungryhalibut

That's odd, the 155 never gets any power from the Hicap. Can you confirm that the 202 is connected to Socket 4 on the Hicap, and that the 155 is connected to one of the other three - the one next to socket 4 is generally considered the best one to use, as it's the shortest signal path. You haven't connected the 155 direct to the 202, have you - suspecting that you may have done.....

Posted on: 19 March 2016 by Armbored

Hi HH,

Just switched it all off and double checked the connections.  All good, Hicap connected to socket 4/202 and socket 3/155.  The 155 has only one DIN socket, which is connected to the Hicap.

Switching on sequence;

1) NAPSC; power to preamp comes on

2) Hicap; Hicap powers up and 155 lights up.

3) NAP 155; Naim logo glows brighter.

Is there something not right here? 

I do have one more question for you guys out there... how do I connect a Headline to all this?  I was using my NAPSC for the Headline but now I am using it for the 202.  I do have a spare Hicap though, which I suspect will suffice, just not sure where to plug it in.

Cheers,

Mike