Nord 1 rack knobs replacement

christos · Joined: Apr 22, 2009 Posts: 5 Location: athens

Hi all
I have a nord lead rack, bought it used some months ago and has that unique raw sound which i really love it so much but the only thing are the knobs that after so many years they stack and feel like shit when turning them, i really need to replace them but cannot find anywhere, emailed clavia some time ago but didnt get any answer, if anyone knows where to find them, i could carefully replace them on my own or call a technician that can do that.
Also is there a possibility to put the knobs from a Nord 2 which have excellent feeling on my nord rack ??
I really need to replace these but cannot find knobs anywhere, any help is much appreciated
thanks a lot

christos · Joined: Apr 22, 2009 Posts: 5 Location: athens

And basically the biggest problem of course is that i cannot program exactly the values i want some times because they are too loose and jump values, with a more steady knob i feel its much better (or with indication of the values on screen, which does not exist anyway)

Wout Blommers · Posted: Wed Apr 22, 2009 4:29 am Post subject:

christos,

christos · Joined: Apr 22, 2009 Posts: 5 Location: athens

you rock

thanx . but still it would be great if i can replace and theres a chance to find new knobs

thanx a bunch for the tip , really really helpful Cool

Wout Blommers · Posted: Wed Apr 22, 2009 5:48 am Post subject:

christos · Joined: Apr 22, 2009 Posts: 5 Location: athens

hmm, i see, so you suggest to open the synth and check what kind of pots it needs and go buy some to replace and keep the black knobs, i know it needs new mechanism to be more steady, i thought this comes only with the knobs but if the pots are more "generic" parts that i can find i will go this way and fix it on my own (i have soldering iron and know how to use them good so that is not a problem, ive studied computer engineering too Razz

, this is more like fun, no worries Cool

)
i guess you are write dr Wout , thanx for your tips again Wink

Oli · Posted: Wed Apr 22, 2009 10:44 am Post subject:

Not sure if you are aware of this or not, but I'll write it anyway, just in case.

The pots are variable resistors, connected as voltage dividers (variable potentiometers). They come in a few varieties, such as linear or logarithmic taper, multiply ganged, integrated switch, through hole/surface mount, orthogonal/prallel mount, chassis mount w/ wire contacts/pcb mount, varying pin alignments, varying resitance etc.

The trick to replacing PCB components is really in safe removal. It is a lot easier to fit a component to a vacant PCB than it is to remove a component once fitted. One must be careful not to damage plating, pads, tracks etc, and not to overheat the board.

Of course, one can learn to do so. One trick is to cut the pins off the component, and then remove the pins one at a time from the PCB. Use of flux paste, desoldering braid, solder sucker, and a good iron can help. It would be highly advised to get a good amount of practice on something like a broken stereo or mixer, prior to attacking your synth.

I suggest you learn to read the component legending first, and source the replacement components before going any further. Do an eyeball check for fit in all dimensions, and preferably also a multimeter check of any components prior to swapping, if you are not certain of your replacement's suitability. Be ware of measuring values of components mounted on a PCB though, as the electrical net can affect what one thinks one is measuring.

You may be able to find some demonstration videos for desoldering online. There are certainly some around for soldering in general. There are also plenty of fora dealing more specifically with this kind of operation.

Good luck. Hope this helps, and please accept my apologies if I am stating the obvious for you here.

W.T. · Posted: Tue May 05, 2009 3:17 pm Post subject:

Wout Blommers · Posted: Tue May 05, 2009 5:39 pm Post subject:

blue hell · Posted: Tue May 05, 2009 5:45 pm Post subject:

W.T. · Posted: Wed May 06, 2009 3:05 am Post subject:

Wout Blommers · Posted: Wed May 06, 2009 3:25 am Post subject:

[Shift+Filter mode] > Notch+HighPassFillter? All three LEDs are burning.

Wout

W.T. · Posted: Wed May 06, 2009 4:16 am Post subject:

mmmm... i knew that one but now it doesn't work.
when i make the shift + filter type combination it jumps to notch+lp Confused

At first it did ok in single mode but when i went to performance mode (where it didn't work) and back it now also doesn't work in single mode no more.

the leds are ok and i restarted it several times.

never mind i can overcome this sinds i dont use that allpass/notch/hp thing . . Very Happy

Wout Blommers · Posted: Wed May 06, 2009 4:44 am Post subject:

W.T. · Posted: Wed May 06, 2009 5:16 am Post subject:

It is a nord Rack 1 (os 2.5)

Yes i hold the shift button down, I did it many times before........ wait, wile I am writing this beautiful sentence I tried it again and now it does work...

perhaps it has something to do with the fact that i dumped some sounds in my sequencer and some weird midi/loop thing was taking place....

wait (again) . . now i found out that... when the NR channel is in record mode it doesn't work (it goes to lp+noth) and when it is out of record mode it does work.

when controller data is set to off it works properly Razz

solved . . . well-done

pffffff.................