Nord's classical Virtual Analog Synth Nord LEAD 1/2/2x/3/4/A1 and Nord Rack versions

Re: Nord Lead A1 Keybed

Postby Mr_-G- » 15 Mar 2021, 20:08

Hey moped2000, these are my thoughts on this:
I would *not* buy a new keybed unless I have it first hand from somebody who has actually done it.
If you read this thread again carefully, it is obvious that there is a dose of well intentioned speculation but it does not seem that actually has been done. There are no photos either, which I think it is essential to make up one's mind if the transplant would look and function fine or whether it looks like done by Boris Karloff.
If you succeed, of course then let us know how it worked out!

The author Mr_-G- was thanked by:
moped2000
User avatar
Mr_-G-
Moderator
 
Posts: 4099
Joined: 18 Aug 2012, 16:48
Has thanked: 1230 times
Been thanked: 1087 times
Your Nord Gear #1: Nord Stage 2

Re: Nord Lead A1 Keybed


Sponsor
 

Re: Nord Lead A1 Keybed

Postby Spider » 15 Mar 2021, 21:19

Mr_-G- wrote:if the transplant would look and function fine or whether it looks like done by Boris Karloff.


Hahaha! Well I once saw an ad for a used Lead 2X which had been upgraded with a TP9, so it surely can be done, at least by a skilled technician who knows VERY well what he's doing. It definitely looked like a Frankensynth anyway, with the bigger keys overhanging the chassis :twisted: :lol:

For reference, this is a photo of my Lead Anniversary (same TP/7 action, only in reverse colors) next to a Lead 3 (TP/9). The size difference is quite obvious.
_20180701_111242.JPG
_20180701_111242.JPG (1.37 MiB) Viewed 400 times
Last edited by Spider on 15 Mar 2021, 21:25, edited 1 time in total.

The author Spider was thanked by 2 members, including:
moped2000Mr_-G-
User avatar
Spider
 
Posts: 873
Joined: 06 Nov 2012, 12:26
Country: Italy
Has thanked: 403 times
Been thanked: 395 times
Your Nord Gear #1: Nord Stage 2 EX
Your Nord Gear #2: Nord Lead 1/2/2x

Re: Nord Lead A1 Keybed

Postby Duplobaustein » 16 Mar 2021, 09:39

Spider wrote:The TP7 and TP9 are different: different size, electronics, everything. Surely they could be exchanged, but changing also the connections, probably a daughter board...definitely not just a matter of drilling a few holes. And the new keys will hang outside the chassis, being longer.


Afaik that's not correct.
Last edited by Duplobaustein on 16 Mar 2021, 09:41, edited 1 time in total.
User avatar
Duplobaustein
 
Posts: 264
Joined: 25 Nov 2012, 15:45
Location: Vienna
Country: Austria
Has thanked: 51 times
Been thanked: 92 times
Your Nord Gear #1: Nord Lead A1

Re: Nord Lead A1 Keybed

Postby Mr_-G- » 16 Mar 2021, 17:59

Which part is not correct? The photo above is very suggestive of a difference in key size.
User avatar
Mr_-G-
Moderator
 
Posts: 4099
Joined: 18 Aug 2012, 16:48
Has thanked: 1230 times
Been thanked: 1087 times
Your Nord Gear #1: Nord Stage 2

Re: Nord Lead A1 Keybed

Postby moped2000 » 16 Mar 2021, 18:14

Hey, I found the technical drawing of a TP/9s on Doepfer's homepage (unfortunatley not for the TP/7, but I can measure it by myself). The width of the keyboard is 68,3cm, exactly the same as the TP/7 in my A1. The keys are indeed longer - measured from the yellow line (from where the keys are visible) they are 0.6cm longer and thus slightly overhang. But maybe you can also install the keyboard 2mm further back (if the holes have to be re-drilled anyway) - then they hardly overhang the case.

There is still the question of whether the height fits and the depth of the keys when played. For this I would have to remove the keyboard again, unfortunately I don't have time right now. And of course the main question, whether the connection is compatible! On Doepfer's homepage there is also a diagram showing the pin assignment, but without the same document for the TP/7 tthere is no comparison. I will try to contact Doepfer maybe they can provide me also information on the TP/7 although they don't sell it...
Attachments
49TP9_drawing.pdf
technical drawing tp/9s
(48.34 KiB) Downloaded 17 times
Last edited by moped2000 on 16 Mar 2021, 18:23, edited 2 times in total.
moped2000
 
Posts: 8
Joined: 14 Mar 2021, 12:33
Country: Germany
Has thanked: 4 times
Been thanked: 14 times
Your Nord Gear #1: Nord Lead A1

Re: Nord Lead A1 Keybed

Postby Spider » 16 Mar 2021, 18:23

Duplobaustein wrote:
Spider wrote:The TP7 and TP9 are different: different size, electronics, everything. Surely they could be exchanged, but changing also the connections, probably a daughter board...definitely not just a matter of drilling a few holes. And the new keys will hang outside the chassis, being longer.


Afaik that's not correct.


Sorry, I never disassembled mine so I'm not speaking first-hand, I was reporting what I read on this ad I was mentioning, from somebody who had done the modification, but I'm not sure of the details. Conversely, the size difference is absolutely real (I can do detailed measurements tonight, if needed), and the TP9 keys will definitely hang outside of the LA1's chassis (as they did on this L2X of the dude who did the mod).
User avatar
Spider
 
Posts: 873
Joined: 06 Nov 2012, 12:26
Country: Italy
Has thanked: 403 times
Been thanked: 395 times
Your Nord Gear #1: Nord Stage 2 EX
Your Nord Gear #2: Nord Lead 1/2/2x

Re: Nord Lead A1 Keybed

Postby orcoaffamato » 16 Mar 2021, 20:14

Here you can find the TP/7 technical drawing: http://www.doepfer.de/service/25TP7_drawing.pdf
Nord Stage 3 HP76 / Nord Lead A1R / Nord Rack 3

The author orcoaffamato was thanked by:
moped2000
User avatar
orcoaffamato
 
Posts: 160
Joined: 06 Jul 2014, 20:36
Country: Italy
Has thanked: 12 times
Been thanked: 43 times
Your Nord Gear #1: Nord Stage 3
Your Nord Gear #2: Nord Lead A1

Re: Nord Lead A1 Keybed

Postby Duplobaustein » 16 Mar 2021, 20:32

Spider wrote:
Duplobaustein wrote:
Spider wrote:The TP7 and TP9 are different: different size, electronics, everything. Surely they could be exchanged, but changing also the connections, probably a daughter board...definitely not just a matter of drilling a few holes. And the new keys will hang outside the chassis, being longer.


Afaik that's not correct.


Sorry, I never disassembled mine so I'm not speaking first-hand, I was reporting what I read on this ad I was mentioning, from somebody who had done the modification, but I'm not sure of the details. Conversely, the size difference is absolutely real (I can do detailed measurements tonight, if needed), and the TP9 keys will definitely hang outside of the LA1's chassis (as they did on this L2X of the dude who did the mod).


I meant the connector. This should be the same and compatible.

The author Duplobaustein was thanked by:
Spider
User avatar
Duplobaustein
 
Posts: 264
Joined: 25 Nov 2012, 15:45
Location: Vienna
Country: Austria
Has thanked: 51 times
Been thanked: 92 times
Your Nord Gear #1: Nord Lead A1

Re: Nord Lead A1 Keybed

Postby moped2000 » 16 Mar 2021, 22:19

If this is true, a mod would actually be possible without any problems, except that the keys stick out 4-6mm further (I have compared the technical drawings). I'll try my luck again with a Novation SL49 MkII and report then!
Last edited by moped2000 on 16 Mar 2021, 22:20, edited 1 time in total.

The author moped2000 was thanked by:
kiolbo
moped2000
 
Posts: 8
Joined: 14 Mar 2021, 12:33
Country: Germany
Has thanked: 4 times
Been thanked: 14 times
Your Nord Gear #1: Nord Lead A1

Re: Nord Lead A1 Keybed

Postby Spider » 17 Mar 2021, 23:35

I measured the keys in my Lead Anniversary and Lead 3.
Width is exactly the same, while the TP/9 keys are exactly 1 cm longer, both blacks and whites: 9 and 14 cms respectively, against 8 and 13 in the TP/7.
User avatar
Spider
 
Posts: 873
Joined: 06 Nov 2012, 12:26
Country: Italy
Has thanked: 403 times
Been thanked: 395 times
Your Nord Gear #1: Nord Stage 2 EX
Your Nord Gear #2: Nord Lead 1/2/2x

PreviousNext

Return to Nord Lead / Rack Forum



Who is online

Users browsing this forum: pterm and 4 guests