Digital KORG CX3 Conversion

Rund um die "Clonewheels" HX3 und HX3.5

Moderator: happyfreddy

formercakid
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Registriert: 29. Sep 2020, 15:00
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Digital KORG CX3 Conversion

Beitrag von formercakid »

Has anyone converted a Digital KORG CX3 to HX3 organ? I see that it's been done with an Analog CX3. Wonder if anyone has info on a Digital CX3 conversion?
happyfreddy
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Registriert: 19. Jul 2012, 09:32
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Re: Digital KORG CX3 Conversion

Beitrag von happyfreddy »

I think there will be noone done this.
The digital version is newer age and has less problems with electronic components.

The older CX 3 or BX 3 is based on the SM 304 and SM 305 Chips and even these components
sometime make trouble. The SM 304 / 305 chips are out of stock and very rare .
So the idea to convert a CX 3 to HX 3 is a way to keep the instrument running.
Hammond H 112 auf Säulen
Wersi Spectra auf Chromsäulen (+ HX 3 im Bau)
Wersi Spectra im Prisma Gehäuse
Leslie 770
HX 3 B 3 look (mk 4 )
HX 2 auf Chromsäulen (mk 1)
HX 1 Labormuster von 2010 mit Röhrenvorstufe
WERSI HELIOS W2TV spezial + HX 3.5
formercakid
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Registriert: 29. Sep 2020, 15:00
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Re: Digital KORG CX3 Conversion

Beitrag von formercakid »

Would'nt it just be a matter of swaping the HX3 board in and connecting the keyboard and drawbar boards???
happyfreddy
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Registriert: 19. Jul 2012, 09:32
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Re: Digital KORG CX3 Conversion

Beitrag von happyfreddy »

I have no information about inside and technical details of the digital Korg CX 3
Adapting of existing components is sometimes a greater problem than to buildt new up ,
so the best way is to use only the housing of that keyboard.
Hammond H 112 auf Säulen
Wersi Spectra auf Chromsäulen (+ HX 3 im Bau)
Wersi Spectra im Prisma Gehäuse
Leslie 770
HX 3 B 3 look (mk 4 )
HX 2 auf Chromsäulen (mk 1)
HX 1 Labormuster von 2010 mit Röhrenvorstufe
WERSI HELIOS W2TV spezial + HX 3.5
formercakid
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Registriert: 29. Sep 2020, 15:00
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Re: Digital KORG CX3 Conversion

Beitrag von formercakid »

The KORG Dig CX3 uses a FATA 61 TP/80 keyboard and a DRAWBAR ASSY (X-8120).
happyfreddy
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Registriert: 19. Jul 2012, 09:32
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Re: Digital KORG CX3 Conversion

Beitrag von happyfreddy »

Using a FATAR 61 TP/80 Key does not mean that the rubbercontact board
is the same You can buy in normal way ie when ordered by Doepfer in Germany
Perhaps Korg uses another Matrix and therefore another ( their own design) PCB Board - I don´t know
Drawbar assy is in the position of a single Drawbar Poti shurely the same, but as a used
KORG Assy perhaps another design which has to be adapted to Keyboardpartner boards and connectors.

All those questions only can be answered when You have a physical look to the parts You want to use
for conversion.
If You have such a keyboard post some pics so we can see it here...
Hammond H 112 auf Säulen
Wersi Spectra auf Chromsäulen (+ HX 3 im Bau)
Wersi Spectra im Prisma Gehäuse
Leslie 770
HX 3 B 3 look (mk 4 )
HX 2 auf Chromsäulen (mk 1)
HX 1 Labormuster von 2010 mit Röhrenvorstufe
WERSI HELIOS W2TV spezial + HX 3.5
formercakid
Beiträge: 5
Registriert: 29. Sep 2020, 15:00
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Re: Digital KORG CX3 Conversion

Beitrag von formercakid »

See attached Pic..
Dateianhänge
cx3.jpg
happyfreddy
Beiträge: 1633
Registriert: 19. Jul 2012, 09:32
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Re: Digital KORG CX3 Conversion

Beitrag von happyfreddy »

hi
As You see comparing Korg Drawbar assy to HX 3 Drawbars
https://shop.keyboardpartner.de/epages/ ... cts/db9mpx
You registrate that the Drawbarpotis are opposite mounted on the boards
ie the knob is at HX 3 potis at the side with two solder pins versus
the KORG Assy has the knob at the side with one solder pin

That means even unsolder the Korg potis never is the anwer of using them in a HX 3 board,
it won´t work
Hammond H 112 auf Säulen
Wersi Spectra auf Chromsäulen (+ HX 3 im Bau)
Wersi Spectra im Prisma Gehäuse
Leslie 770
HX 3 B 3 look (mk 4 )
HX 2 auf Chromsäulen (mk 1)
HX 1 Labormuster von 2010 mit Röhrenvorstufe
WERSI HELIOS W2TV spezial + HX 3.5
formercakid
Beiträge: 5
Registriert: 29. Sep 2020, 15:00
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Re: Digital KORG CX3 Conversion

Beitrag von formercakid »

Imagine if I did'nt inquire on this forum if the CX3 to HX3 conversion was possible... I might be slow but I ain't STUPID!!!!!!!!!!!!
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