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=== Components required ===
=== Components required ===
[[File:Components v2.jpg]]
[[File:Components v2.jpg|400px]]
1. Capacitors - Electrolytic - Polarized
1. Capacitors - Electrolytic - Polarized
* Value: 470u 10V
* PCB label: C1
* Package: CP_Radial_D8.0mm_P3.50mm
* Quantity: 1
* Where to buy: https://www.aliexpress.com/item/1005003189675117.html
2. Capacitor - Electrolytic - Polarized
2. Capacitor - Electrolytic - Polarized
* Value: 100u
* PCB label: C4
* Package: CP_Radial_D6.3mm_P2.50mm
* Quantity: 1
* Where to buy: https://www.aliexpress.com/item/1005003189675117.html
3. Capacitor - Film - Non-Polarized
3. Capacitor - Film - Non-Polarized
* Value: 100n
* PCB label: C2,C3,C5,C6,C7
* Package: C_Rect_L7.0mm_W2.0mm_P5.00mm
* Quantity: 5
* Where to buy: https://www.aliexpress.com/item/1005005894912292.html
4. Capacitors - Ceramic - Non-Polarized 100n and 10n
4. Capacitors - Ceramic - Non-Polarized 100n and 10n
* Value: 100n
* PCB label: C22,C16,C19,C13,C23,C20,C9,C26,C27,C32,C8,C18,C21,C34,C33,C17,C25,C11,C24,C31,C12,C15,C10,C14
* Package: C_Rect_L4.0mm_W2.5mm_P2.50mm
* Quantity: 24
* Where to buy: https://www.aliexpress.com/item/1005002290441861.htm
* Value: 10n
* PCB label: C30,C29,C35,C37,C38,C28,C39,C36
* Package: C_Rect_L4.0mm_W2.5mm_P2.50mm
* Quantity: 8
* Where to buy: https://www.aliexpress.com/item/1005002290441861.htm
5. Diode
5. Diode
* Value: 1N4148
* PCB label: D1
* Package: D_DO-35_SOD27_P7.62mm_Horizontal
* Quantity: 1
* Where to buy: https://www.aliexpress.com/item/32660088529.html
6. MIDI Connectors - PCB mountable
6. MIDI Connectors - PCB mountable
* PCB label: MIDI-OUT-J1, MIDI-IN-J1, MIDI-THRU-J1
* Package: MultiDIN5
* Quantity: 3
* Where to buy: https://www.aliexpress.com/item/1005005773478404.html
7. Resistors
7. Resistors
* Value: 220R
* PCB label: R1,R3,R5,R4,R6
* Package: R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal
* Quantity: 5
* Where to buy: https://www.aliexpress.com/item/1005005669886834.html
8. Resistor
8. Resistor
* Value: 1k
* PCB label: R2
* Package: R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal
* Quantity: 1
* Where to buy: https://www.aliexpress.com/item/1005005669886834.html
9. Resistor
9. Resistor
* Value: 10k
* PCB label: R8,R7
* Package: R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal
* Quantity: 2
* Where to buy: https://www.aliexpress.com/item/1005005669886834.html
10. Digital Optocoupler
10. Digital Optocoupler
* Value: H11L1M
* PCB label: U2
* Package: DIP-6_W7.62mm
* Quantity: 1
* Where to buy: https://www.aliexpress.com/item/32867427644.html
11. Hex inverting Schmitt trigger
11. Hex inverting Schmitt trigger
* Value: 74HCT14
* PCB label: U1
* Package: DIP-14_W7.62mm
* Quantity: 1
* Where to buy: https://www.aliexpress.com/item/33020259485.html
12. Sound Card PCM5102
12. Sound Card PCM5102
* Value: GY-PCM5102
* PCB label: A1
* Package: GY-PCM5102
* Quantity: 1
* Where to buy: https://www.aliexpress.com/item/1005002898278583.html
13. I/O Expander
13. I/O Expander
* Value: MCP23017_SP
* PCB label: MCPMCP23017_SP1, MCPMCP23017_SP2
* Package: DIP-28_W7.62mm
* Quantity: 2
* Where to buy: https://www.aliexpress.com/item/1005005363863079.html
14. 2x20 Pin Header - male and female
14. 2x20 Pin Header - male and female
* Male:
* PCB label: HAT1
* Package: PinSocket_2x20_P2.54mm_Vertical
* Quantity: 1
* Where to buy: https://www.aliexpress.com/item/4000133266617.html
* Female:
* PCB label: RPi1
* Package: two spacer female 40pin vertical header
* Quantity: 1
* Where to buy: https://www.aliexpress.com/item/4001095693537.html
15. Encoder with a Switch
15. Encoder with a Switch
* Value:
* PCB label: Enc2,Enc4,Enc1,Enc3
* Package: RotaryEncoder_Alps_EC12E-Switch_Vertical_H20mm
* Quantity: 4
* Where to buy: https://www.aliexpress.com/item/1005006142236380.html
16. Encoder Cap
16. Encoder Cap
* Value: encoder caps
* PCB label: Encoder caps
* Package: Encoder caps
* Quantity: 4
* Where to buy: https://www.aliexpress.com/item/1005005835327286.html
17. Push Button
17. Push Button
* Value:
* PCB label:SW14,SW9,SW16,SW20,SW6,SW10,SW8,SW2,SW17,SW4,SW12,SW19,SW5,SW1,SW13,SW18,SW15,SW7,SW11,SW3
* Package: push-button
* Quantity: 20
* Where to buy: https://www.aliexpress.com/item/32912263133.html
18. 5" DSI Screen for Raspberry Pi
18. 5" DSI Screen for Raspberry Pi
* Value: Screen
* PCB label: RPI 5" screen
* Package: RPI screen
* Quantity: 1
* Where to buy: https://www.aliexpress.com/item/1005005353135304.html
19. Raspberry Pi 4 4GB with heatsink
19. Raspberry Pi 4 4GB with heatsink
* Where to buy heatsink: https://www.aliexpress.com/item/1005004774833369.html
20. 1/4 Stereo jack
20. 1/4 Stereo jack
* Value: J1
* PCB label: J1
* Package: Jack_6.35mm_Neutrik_NMJ6HFD2_Horizontal
* Quantity: 1
* Where to buy: https://www.aliexpress.com/item/4001266094691.html
21. RCA Stereo jack
21. RCA Stereo jack
* Value: J2
* PCB label: J2
* Package: RCA RS-234
* Quantity: 1
* Where to buy: https://www.aliexpress.com/item/1005001629197904.html
=== Soldering ===
=== Soldering ===
First solder resistors and diode and microchips such as Digital optocoupler (H11L1M), hex inverting schmitt trigger (74HCT14) and I/O Expander (MCP23017). Pay attention to orientation of these microchips.
First solder resistors and diode and microchips such as Digital optocoupler (H11L1M), hex inverting schmitt trigger (74HCT14) and I/O Expander (MCP23017). Pay attention to orientation of these microchips.
[[File:Soldering-step-1.png]]
[[File:Soldering-step-1.png|400px]]
Solder the ceramic and film capacitors at the back of PCB (orientation not important - they are non polarized).
Solder the ceramic and film capacitors at the back of PCB (orientation not important - they are non polarized).
[[File:Soldering-step-2.png]]
[[File:Soldering-step-2.png|400px]]
Then solder film and ceramic capacitors at the front (orientation not important - they are non polarized).
Then solder film and ceramic capacitors at the front (orientation not important - they are non polarized).
[[File:Soldering-step-3.png]]
[[File:Soldering-step-3.png|400px]]
Then solder female and male headers
Then solder female and male headers
[[File:Soldering-step-4.png]]
[[File:Soldering-step-4.png|400px]]
Then solder two electrolytic capacitors. Pay attention to their orientation.
Then solder two electrolytic capacitors. Pay attention to their orientation.
[[File:Soldering-step-5.png]]
[[File:Soldering-step-5.png|400px]]
Then solder sound card. First solder male header pins that came with the card and the solder it to PCB board.
Then solder sound card. First solder male header pins that came with the card and the solder it to PCB board.
[[File:Soldering-step-6.png]]
[[File:Soldering-step-6.png|400px]]
Make sure that you have cut sound card pins - they are too long and they will touch the screen if you leave them as it is.
Make sure that you have cut sound card pins - they are too long and they will touch the screen if you leave them as it is.
[[File:Soldering-step-7.png]]
[[File:Soldering-step-7.png|400px]]
Then solder three MIDI connectors.
Then solder three MIDI connectors.
[[File:Soldering-step-8.png]]
[[File:Soldering-step-8.png|400px]]
Then solder the switches.
Then solder the switches.
[[File:Soldering-step-9.png]]
[[File:Soldering-step-9.png|400px]]
Finally solder the encoders. After soldering them cut any excess wires because that side will be very close to RPI heatsink so any contact to it must be avoided.
Finally solder the encoders. After soldering them cut any excess wires because that side will be very close to RPI heatsink so any contact to it must be avoided.
[[File:Soldering-step-10.png]]
[[File:Soldering-step-10.png|400px]]
You have finished the hard part - soldering. Now you just need to assemble everything together.
You have finished the hard part - soldering. Now you just need to assemble everything together.
First remove two screen posts that are not necessary and could touch some of the PCB components.
First remove two screen posts that are not necessary and could touch some of the PCB components.
[[File: screen post removal.png]]
[[File: screen post removal.png|400px]]
Then connect longer cable that comes with a screen to the screen and attach the screen to PCB.
Then connect longer cable that comes with a screen to the screen and attach the screen to PCB.
[[File:Screen cable.png]]
[[File:Screen cable.png|400px]]
Then screw appropriate hex mounts to PCB for Raspberry Pi. Do not connect Raspberry Pi yet. The type of hex mounts will depend on heatsink that you use. Also connect the screen cable to RPI.
Then screw appropriate hex mounts to PCB for Raspberry Pi. Do not connect Raspberry Pi yet. The type of hex mounts will depend on heatsink that you use. Also connect the screen cable to RPI.
[[File:Rpi screen cable.png]]
[[File:Rpi screen cable.png|400px]]
Then connect heatsink to raspberry pi.
Then connect heatsink to raspberry pi.
[[File:Rpi cooler.png]]
[[File:Rpi cooler.png|400px]]
Then connect raspberry Pi to PCB.
Then connect raspberry Pi to PCB.
[[File:Rpi to pcb.png]]
[[File:Rpi to pcb.png|400px]]
=== Configure Zynthian MINI V2 for testing ===
=== Configure Zynthian MINI V2 for testing ===