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===Holding everything to the case===
 
===Holding everything to the case===
   −
===Connecting everything===
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=Connecting everything=
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=== Controller Module x 4 ===
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This step is a bit tricky. Remember that, if you follow the instructions before, you have soldered the pin-rows in the bottom side of PCBs, so numbering is reversed when looking from bottom. You can use a little trick: if you rotate the PCB 180º, then numbering is "left to right" again ;-)
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So '''you should look at your controller modules from bottom side and with the pin-row on the top of PCB!'''
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'''PHOTO NEEDED HERE!!'''
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'''Note:''' Some encoders have reversed pin ordering, so, if you buy the encoders by yourself, perhaps you have to change A and B pins.
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[[File:wiring_scheme_controllers_single.png|600px]]
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[[File:zynthian_inside_01.jpg|600px]]
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'''Warning:''' In this photo the controller modules wiring is reversed (1 by 2, 3 by 4). I will change it ASAP ;-)
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=== 2in1 ===
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The 2in1-PCB must be connected using one of the mini ribbon cables. The 6-pin connector must be located towards the PCB. Pin 1 is on the bottom left (component side up). On the other end of the cable there are 1-pin female connectors. They must be connected to the following pins on the (male) 40-pin-conenctor in the middle of the main ribbon cable.
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{| class="wikitable"
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! Wire no. || Function ||  GPIO no. || Pin on Raspi no.
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|-
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| 1 || Vdc 3.3V || 3.3V || 1
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|-
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| 2 || RxD || RxD || 10
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|-
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| 3 || I2C SDA1 || 08 || 3
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|-
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| 4 || I2C SCL1 || 09 || 5
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|-
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| 5 || Vdc 5V || 5V || 2/4
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|-
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| 6 || GND || GND || 6/9
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|-
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|}
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[[File:Cable-schema-2in1.png|600px]]
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Next connect the DIN socket (MIDI) to the 2in1-PCB. The connector on the PCB is the 2-pin one located in the upper right corner of the PCB.
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{| class="wikitable"
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! Wire no. || Function || MIDI-IN pin no.
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|-
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| 1 || MIDI-IN || 2 (MIDI connector: 2nd from left)
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|-
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| 2 || MIDI-IN || 4 (MIDI connector: 2nd from right)
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|-
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|}
    
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