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Created page with "To assemble zynthian mini V2 version you will require: * PCB that need to be produced based on KiCad design that you can find in [https://github.com/zynthian/zynthian-hw/tree..."

To assemble zynthian mini V2 version you will require:

* PCB that need to be produced based on KiCad design that you can find in [https://github.com/zynthian/zynthian-hw/tree/master/MINI_V2 zynthian hardware] repository.
* Components that need to be soldered to this PCB.
* 5" Screen
* Raspberry Pi 4 with heatsink
* optional: zynthian MINI V2 3d printable case

== Assembling the PCB ==

NOTE: Do not be confused that some of the instruction images shown here do not fully align to V2 PCB layout. This is because they are taken with original MINI V2 PCB that had few issues that are now fixed and therefore some small change will be there. Always read the label of the component on the PCB if confused.

=== Components required ===

[[File:Components v2.jpg]]

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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
Where to buy heatsink: https://www.aliexpress.com/item/1005004774833369.html

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
Value: J2
PCB label: J2
Package: RCA RS-234
Quantity: 1
Where to buy: https://www.aliexpress.com/item/1005001629197904.html

=== Soldering ===

First get PCB and all components sorted by their type. Check their values using digital multimeter to make sure that you have them properly sorted.

Heat up the solder iron and make sure that its tip is clean. If not put some solder on it and clean it with wet sponge. It has to be shiny silver tip.

Start by soldering back side of the PCB. Order of soldering is always from smallest to tallest components.

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]]

Solder the ceramic and film capacitors at the back of PCB (orientation not important - they are non polarized).

[[File:Soldering-step-2.png]]

Then solder film and ceramic capacitors at the front (orientation not important - they are non polarized).

[[File:Soldering-step-3.png]]

Then solder female and male headers

[[File:Soldering-step-4.png]]

Then solder two electrolytic capacitors. Pay attention to their orientation.

[[File:Soldering-step-5.png]]

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]]

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]]

Then solder three MIDI connectors.

[[File:Soldering-step-8.png]]

Then solder the switches.

[[File:Soldering-step-9.png]]

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]]

You have finished the hard part - soldering. Now you just need to assemble everything together.

=== Assembling the PCB for the test ===

This instruction here are just assembling everything for testing. You should test it before assembling into the case.

First remove two screen posts that are not necessary and could touch some of the PCB components.

[[File: screen post removal.png]]

Then connect longer cable that comes with a screen to the screen and attach the screen to PCB.

[[File:Screen cable.png]]

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]]

Then connect heatsink to raspberry pi.

[[File:Rpi cooler.png]]

Then connect raspberry Pi to PCB.

[[File:Rpi to pcb.png]]

=== Configure Zynthian MINI V2 for testing ===

Once everything is configured and working it is a time to put zynthian into the enclosure.

=== Assembling Zynthian MINI V2 into 3d printable enclosure ===

Stojos

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Changes

Building Zynthian MINI V2 (view source)

Revision as of 16:07, 5 May 2024