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Tubbutec OrganDonor Installation Manual

For crumar performer
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Tools you will need:

• Soldering iron
• Wire stripper
• Metal drill 3.5mm (or similar)
• Metal drill for a 15mm hole (stepping drill for example)
• Center punch
• Screw driver

Included in the kit:

• OrganDonor Main Board
• 4x OrganDonor Switch Board (1 single), 2x16pin Connector,
1x20 pin connector, 1x 2pin connector
• Analog switch connection: 1x16 – 70cm, 1x16p – 60cm, 1x20 –
55cm, 1x2 - 30cm
• Interconnect cables: 1x 4cm, 1x 5cm, 1x 11cm, 1x 13cm
• Midi connector assembly
• Power connector, extended
• Learn button
• 17x screw 2,9x6,5
• Midi socket drill guide
• 2x M3 bolt, 2xM3 nut for midi socket
Tubbutec OrganDonor
Installation manual for Crumar Performer

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Summary of Contents for Tubbutec OrganDonor

  • Page 1 • Screw driver Included in the kit: • OrganDonor Main Board • 4x OrganDonor Switch Board (1 single), 2x16pin Connector, 1x20 pin connector, 1x 2pin connector • Analog switch connection: 1x16 – 70cm, 1x16p – 60cm, 1x20 – 55cm, 1x2 - 30cm •...
  • Page 2 OrganDonor uses analog switches to simulate keyboard presses directly. Normally this would require to solder two wires for each key. Luckily this can often be avoided by grouping common signals. OrganDonor features solder jumpers to connect common signals on the back of each analog switch board.
  • Page 3 Switch board installation Mount the switch boards and the main board on the bottom plate of the synthesizer as shown in in the picture using the 17 2,9x6,5mm screws. The rightmost and middle board have 16pin connectors, the large one on the left a 20pin connector.
  • Page 4 Now solder the power connections as follows: The black wire gets soldered to the green ground wires, the yellow wire gets soldered to the orange wires (-12V) and the red wire gets soldered to the red wires (+12V). Please note that the board are installed upside down in reverse order (counting from right to left) to make sure we don’t need a too long interconnection cable between the main board and the first switch board.
  • Page 5 Installing the key contacts Cut the ribbon cables to length and strip the wires. Switch board 3 (20pin connector): Wires 1 and 2 get cut. Wires 18–3 get soldered to key contacts 2–17. Wire 19 gets cut. Wire 20 gets soldered to the busbar (common contact). There are 2 diodes per key.
  • Page 6 Wires are not included in the kit. Press the learn button and while it is pressed send a midi note on any midi channel. organDonor will use this midi channel from now. These settings are saved.

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