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HX3.5 Hammond XB2 Retrofit Kit  

 

The 

basic kit

 consists of the following components: 

  HX3.5 mainboard (variant XB Kit), four Spax screws 3x12mm, four spacer sleeves 5mm, two wire end 

sleeves for power cable, 5 core crimp cable with 10pin connector. 

  Interface board 1 with 6.3mm jacks, 6 core crimp cable 25cm for swell pedal and foot switch 

connection, 3 core crimp cable 40cm for audio out, 16 core ribbon cable 25cm for pots. 

  Interface board 2 for keyboard, drawbars, buttons, mod wheel and pitch wheel, two Spax screws 

3x12mm, two spacer sleeves 5mm, two 10 core ribbon cables 20cm, 10 core ribbon cable 23cm, 16 
core ribbon cable 33cm. 

  USB extension to screw on. 

  Cable ties, heat shrink tubing. 

Optional additions: 

  Control board with rotary encoder and up/down buttons, two black screws M3, 6 core ribbon cable  

35cm. 

  WiFi kit for wireless operation via TouchOSC on smartphone or tablet (iOS, Android), antenna with 

screw base. 

  HX3.5 Extension Board (variant XB Kit, only needed for 11pin Leslie output), two Spax screws 

3x12mm, two spacer sleeves 5mm, 14 core ribbon cable 66cm 

The installation of the control board requires five precise drill holes (2x 3.2mm, 2x 7mm, 1x 14mm) in the 
steel profile to the right of the display. Alternatively or additionally, the control can be done wirelessly via 
our WiFi interface using TouchOSC. Both options are described in this manual.  

Tools required: 

Small slotted screwdriver (blade <3mm), Phillips screwdriver PH1, Torx screwdriver T10, Hexagon 
screwdriver 2mm, flat nose pliers or combination pliers, flat side cutter, center punch, steel drill bit 3mm. 

For installation of the optional control board with encoder: steel drill bit 3.2mm, steel drill bit 7mm, step drill 
bit (>14mm). 

 

Decoring the XB2 

 

 

Loosen the 5 large screws on the bottom. Then the 
wooden lid can be removed. 

 

 

 

 

 

 

 

Summary of Contents for HX3.5 XB2 Retrofit Kit

Page 1: ...n cable 35cm WiFi kit for wireless operation via TouchOSC on smartphone or tablet iOS Android antenna with screw base HX3 5 Extension Board variant XB Kit only needed for 11pin Leslie output two Spax...

Page 2: ...e The interface board on the rear panel is no longer required and can be removed Disconnect all plug connections and remove the board Disassemble the MIDI connector board and put it aside This board w...

Page 3: ...cable ties holding various harnesses together The metal rails can also be removed and sent for disposal Only the power supply the MIDI connection board and the boards with the controls at the front an...

Page 4: ...enlarged or reduced Cut out the drawing along the contour lines Place the metal profile upside down on a soft surface so that it does not get scratched Attach the drawing with adhesive tape in the ce...

Page 5: ...re cable ribbon into PL16 beforehand Connect the connector of the 11pin Leslie socket to PL17 and the three connectors from the pots at the front to PL12 PL14 and PL18 Plug the USB cable into the sock...

Page 6: ...ore crimp cable The connection of the interface board 1 is now completed and should look like on the adjacent photo Now it s time to install the interface board 2 Screw it close to the left side of th...

Page 7: ...appear on the display Take the opportunity to adjust display contrast with the trimmer on the interface board 2 Switch off the XB2 and disconnect the power cable Identify the harness coming from the...

Page 8: ...use the WiFi interface you can now install the MIDI connector board unchanged and connect it to PL1 of the interface board 1 You can omit the next five steps There is a trimmer for the display contra...

Page 9: ...ve foam plate plug the WLAN module onto the PL33 slot of the mainboard and press it onto the USB socket on the other side The conversion of the Hammond XB2 to a HX3 organ is now complete Now you can p...

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