Difference between revisions of "Assembling Zynthian Kit V5"

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'''3.''' Plug the RBPi4 (with the thermal block attached) on the Main Board's RBPi4 socket, the big one with 2 rows of 20 pin-holes each. Pay attention to not bend any pins and also note that the display flat cable should pass thru the rectangle hole in the main board, like in the photos (zoom if you have doubts).
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'''3.''' Plug the RBPi4 (with the thermal block attached) on the Main Board's RBPi4 socket, the big one with 2 rows of 20 pin-holes each. Pay attention to not bend any pins. Also note that the display flat cable should pass thru the rectangle hole in the main board, like in the photos (zoom if you have doubts).
  
 
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Revision as of 11:00, 11 July 2023

1 Previous Requirements


1.1 BOM V5 kit


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  • V5 Aluminum Case
    • Bottom
    • Top
  • Main Board
  • Control Board
  • Display
  • Raspberry Pi4
  • Thermal Block
  • Thermal Pad (1 piece of 6 x 2 cm)
  • Silicone Keypad
  • Rubber Feet (4 units)
  • Wiring
    • DSI display flat cable: 20cm long, 1.6cm wide, 1mm pitch
    • Control Board flat cable: 15cm long, 1cm wide, 0.5mm pitch
    • USB-C adapter + flat cable: 5cm long, 1cm wide, 0.5mm pitch
    • uSD-card adapter with flat cable: 5cm long, 1cm wide, 1mm pitch
  • Screws
    • 12 x ISO7380 M2.5x5mm black zinc steel (round head)
    • 21 x ISO7380 M3x5mm black zinc steel (round head)
    • 10 x DIN7991 M3x6mm black zinc steel (conic head)
    • 4 x DIN916 M3x4mm black zinc steel (headless)
    • 8 x Spacer M3x10mm brass
  • Mechanized Aluminum Knobs (4 units)
  • Power Supply: 24V, 1.5 Amp (1 unit)
  • SD-Card >= 16GB (NOT included in V5 kit)
  • Optional: CR2032 lithium battery (NOT included in V5 kit)


1.2 Tools Required


  • Allen Spanner 1.5 mm
  • Allen Spanner 2.0 mm
  • Scissors or Cutter (NOT included in V5 kit)
  • Rule meter (NOT included in V5 kit)


1.3 Time Required


Depending of your skills and ability, from 1 to 3 hours.


2 General Advice


  • Read and follow carefully the assembling instructions. Don't ignore any guidance or recommendation. We are quite lazybones, so we should had some important reason to write it.
  • Use the browser's zoom for magnifying the details in the pictures. They have good resolution and will allow you to see all details you need.
  • Prepare the working space and the needed tools. A clean 120 x 60 cm table will be big enough. More is always welcome. Less is not recommended. Remove all stuff you don't need from the surface and prepare the tools you will need.
  • Ensure you have good lighting in the working area. Having good lightning will ease delicate operations, specially those involving smaller parts.
  • Please, be extremely delicate when manipulating the flat cable connectors (FPC). They are the weakest parts and can be easily broken. Look carefully the photos/videos and proceed just in the way we recommend. Use 2 hands, one finger from each hand. Avoid manipulating the connectors with a single hand or finger and don't use any tool for this.
  • Don't be impatient. If you have doubts or you are blocked, please, stop assembling and ask in the forum or send an email to support@zynthian.org. It's better to wait some hours to get an answer than waiting for days/weeks to get a replacement part.
  • Keep your hands clean so you can enjoy a nice unit after finishing.


WARNING!!

DON'T USE FORCE! NEVER! Some parts are really delicate, specially flat cable connectors (FPC), and you could easily break something if you are brute. Assembling the V5 unit is not difficult at all, but it's a clock-maker work. A beginners one that almost everyone could do, but clock-maker's task anyway. if you are not very used to manipulate this kind of stuff, please, proceed slowly and think twice to do it once.


3 BOTTOM PART


3.1 Dump the screws bag in an suitable receptacle


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Be careful when opening the screws bag. Some of them are really small and you could easily lose them. Please, don't dump them on the table's surface or on top a piece of paper. We recommend to dump the bag's content in an small tray, so you can look and take the parts easily, but getting them well confined so they can't be easily lost.

Put special care to the 4 tiny headless screws used to secure the knobs. They are really small!! You could screw them into the knobs and avoid they get lost during the build process.


3.2 Sticking the rubber feet to the aluminum case bottom


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1. Look for the aluminum case bottom part in the "V5" case:


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2. Look for the 4 x rubber feet inside the wiring bag, in the "Screen and Bits" case:


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3. Stick the 4 x rubber feet to the aluminum case bottom part. This will prevent scratches during the assembling process.


3.3 Install the display ribbon cable to the RPi4


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1. Look for the display ribbon cable in the "Screen and Bits" case. It's 20cm long and 1.6cm wide:


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2. Look for the RPi4 compute module in the "Accessories" case.


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3. Open the RPi4's DSI connector by softly pulling both sides of the tiny black tongue at once. When it's totally open, push the ribbon cable inside, straight, with the blue side facing out. When the cable is totally inserted, close the connector by pushing the tongue with 2 fingers, one of each hand. Pay attention to ensure the cable does not move out of the connector. If it's not well inserted or not straight, repeat the operation until it's OK.


WARNING!!

When possible, use 2 hands to manipulate the fragile FPC connectors. You will control the applied force a lot better than using a single hand. If you couldn't use 2 hands, take extreme care. In fact, extreme care should be taken all the time when manipulating FPC connectors.


Note:

If you break a FPC's connector tongue, you could workaround the problem with thermal glue. Not nice, but it works quite well!


3.4 Install the thermal block


Zynthian V5 gets a 25% extra power from the RPi4 by overclocking the CPU up to 2 GHz. For this to work properly, we need to remove the heat generated by the RPi4. As we don't want a noisy fan, prone to failure, pushing dust inside our nice case, we are using the aluminum case as a huge heat-sink. This is achieved by the thermal block, a solid aluminum block that closely contacts with the RPi4's chips and serve as a heat-highway to the aluminum case bottom, and from there, to the rest of the aluminum case. When your zynthian V5 is working hard, or when external temperature is high enough, you will note the V5 case is hot. This is good because it means the thermal block is doing its job of transferring heat from inside to the aluminum case body, where it's dissipated to the ambient environment.

Having understood all this, you may realize this is a key step for getting your V5 working at 100% of its capacity, so don't be in a hurry and take your time to do a good job. Let's start!




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1. Look for the thermal block in the accessories case.


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2. Look for the piece of thermal pad in the wiring bag, in the "Screen and Bits" case. It is a piece of approximate size of 60 x 20 mm, gray on one side and blue on the other.


3. Using the rule-meter and the scissors or cutter, cut 4 little pieces of thermal pad with these recommended sizes:


  • 27 x 20 mm
  • 11 x 11 mm
  • 11 x 9 mm
  • 6 x 6 mm


We find the easiest way is to proceed by cutting 3 strips like these:


  • 27 x 20 mm
  • 11 x 20 mm => cut this to get the 11x11 & 9x11 mm pieces
  • 6 x 20 mm => cut this to get the tiny 6x6 mm piece


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4. Remove the blue protective sheet from the 3 smaller pieces and stick them to the inner side of the thermal block, the one that makes contact with the RPi4. You'll recognize it because it has 3 small rectangular islands that fit the size of the 3 smaller pieces you cut out. You can use your finger to press the thermal pad and stick it. Use your fingernail to cut off the excess, if any.


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5. Take 4 x ISO7380 M2.5 screws. They are the smaller ones with rounded head.


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6. Remove the transparent protective sheet from the 3 pieces of thermal pad and fix the RBPi4 compute module to the thermal block using the 4 x ISO7380 M2.5 screws.


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7. Finally, stick the remaining piece of thermal pad (27 x 20 mm) on the contact surface in the external side of the thermal block. That is, on top of the "tower" with 2 tiny holes. Follow the same procedure you already did with the 3 smaller pieces, but don't remove the transparent protective sheet yet. You will do later, when installing it in the aluminum case bottom.


3.5 Assemble the Main Board into the aluminum case bottom


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1. Take the main board from its case.


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2. Take 4 x ISO7380 M2.5 screws. They are the smaller ones with rounded head.


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3. Plug the RBPi4 (with the thermal block attached) on the Main Board's RBPi4 socket, the big one with 2 rows of 20 pin-holes each. Pay attention to not bend any pins. Also note that the display flat cable should pass thru the rectangle hole in the main board, like in the photos (zoom if you have doubts).


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4. Fix the thermal block to the main board from the backside using the 4 x M2.5 screws.


Note:

At this point, you could do in advance steps 3.6 and 3.7. Some people will find more comfortable to plug the SD-card & USB-C adaptors before assembling the main board in the aluminum case. Up to you!


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5. Take 7 x ISO7380 M3 screws. They are the mid-size ones with rounded head.


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6. Remove the transparent protective sheet from the piece of thermal pad stuck in the thermal block bottom and softly place the main board in the aluminum case bottom. You will find it more comfortable to grab the thermal block to do this operation. Fix it using the 7 x ISO7380 M3 screws.


3.6 Plug SD-card adapter


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1. Look for the SD-card adapter in the wiring bag.


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2. Carefully, using 2 fingers, one on each hand, pull the main board's SD-card connector tongue until it's totally open.


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3. Insert the SD-card adapter's ribbon cable. It must be inserted straight, with the blue side face down.


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4. When it's totally inserted, push the tongue with 2 fingers at once and close the connector. Pay attention to ensure the cable does not move out of the connector. If it's not well inserted or not straight, repeat the operation until it's OK.


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4. Plug the SD-card adapter into the RPI4's SD-card holder.


3.7 Plug USB-C adapter


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1. Look for the USB-C adapter in the wiring bag.


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2. Carefully, using 2 fingers, one on each hand, pull the main board's USB-C connector tongue until it's totally open.


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3. Insert the USB-C adapter's ribbon cable. It must be inserted straight, leaving the blue side face down.


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4. When it's totally inserted, push the tongue with 2 fingers at once and close the connector. Pay attention to ensure the cable does not move out of the connector. If it's not well inserted or not straight, repeat the operation until it's OK.


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5. Plug the USB-C connector into the RPI4's USB-C socket.


3.8 Stick the SD-card holder cover


This little piece of plastic is just to avoid you accidentally drop the micro-SD card into the aluminum case without getting inserted in the SD-card reader. But ... can this happen? Well, it's not easy, but we have printed this nice piece of plastic for some reason ;-)


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1. Look for the SD-card holder cover in the wiring bag.


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2. Remove the protective sheet.


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3. Stick it on the main board's SD-card holder, so it is well-adjusted, touching the aluminum case.


3.9 Secure the thermal block to the aluminum case bottom


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1. Look for 2 x DIN7991 M3 screws. They have countersunk flat heads.


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2. Flip the aluminum case bottom and look for the 2 countersunk holes. Using the allen wrench, punch the thermal pad through the holes.


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3. Screw the 2 bolts and tight them strong enough, but not too much.


4 TOP PART


4.1 Secure the top-spacers on the control board


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1. Take the control board from its case. You don't need the silicone buttons yet.


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2. If you don't want your zynthian V5 to behave like a rattle, please, remove the nuts and rings from the rotary encoders. You don't need these, so you can throw them away or put in the screws tray.


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3. Take the 8 x brass spacers 10mm and 8 x ISO7380 M3 screws (the mid-size ones with round head).


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4. Secure the 8 x spacers in the control board's top side. To do this, insert the bolt from the back side and while holding it with your finger, fasten the spacer with the other hand until it's tight. You don't need a wrench for this, but you could use it if you like.


4.2 Assemble the display on the control board


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1. Take the display from its case. It should have 2 protective sheets. The first one is thin and baggy and the second one is thicker and it fits the LCD panel except for a small green tab. Remove the first protective sheet (the thin and baggy one) and leave the second one untouched. After this, flip the display and remove the 4 yellow protective sheets from the outer spacers. You could use your fingernail or a cutter for this operation.


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2. Take 4 x ISO7380 M2.5 screws (the smaller ones with round heads).


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3. Secure the display to the control board's top side using the 4 x small M2.5 screws. Don't tighten these bolts yet!!! The display must be loose to get a good fit with the aluminum case top part. You will tighten these screws later. Pay attention to the display orientation. The display FPC connector for the flat cable must be accessible through the main board's square hole.


4.3 Plug the flat ribbon cable into the control board


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1. Look for the control flat ribbon cable in the wiring bag. It's grey with blue tips, 15cm long and 1cm wide.


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2. Carefully, using 2 fingers, one on each hand, pull the control board's FPC connector tongue until it's totally open.


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3. Insert the ribbon cable into the FPC connector. It must be inserted straight, with the blue side face down.


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4. When it's totally inserted, push the tongue with 2 fingers at once and close the connector. Pay attention to ensure the cable does not move out of the connector. If it's not well inserted or not straight, repeat the operation until it's OK.


4.4 Secure the control board, silicone buttons and display to the aluminum case top


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1. Look for the aluminum case top part.


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2. Look for 8 x DIN7991 M3 screws. They have countersunk flat heads.


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3. Place the silicone buttons in place, on top the control board. Note the tiny silicone nipples in the bottom and pay attention to get them to fit into the small locating-holes on the control board. Once it's done, softly side-push to check the buttons are well sited in place. They shouldn't move.


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4. Use the "Screens & Bits" case as a mounting stand and place the control board on it, as shown in the picture.


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5. Place the aluminum case top part over the control board taking care of orientation and proceeding slowly. It's a good time to remove the display's protective sheet, or at least, fold the green tab out of the way so the display makes a good fit into the case's window.


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6. Secure the control board with the 8 x M3 countersunk screws. Again, tighten enough, but not too much.


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7. Flip the top part and place it over the carton-stand again. Now is the right moment to tight the 4 display screws from step 4.2 (do you remember?).


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8. Congratulations! We are ready to join everything together.


5 JOINING BOTH PARTS AND CLOSING THE CASE


5.1 Plug the display flat cable into the display


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1. Place the two parts one aside the other, forming 90º angle, as shown in the picture.


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2. Using two fingers, one on each hand, softly pull the display's FPC tongue until it's open. Insert the flat ribbon cable coming from the RPi4 into the bottom's part. Do it straight, without bending or twisting it in any way, so the blue side is face down.


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3. When it's totally inserted, softly push the tongue using 2 fingers, one on each hand, until it's totally closed. Pay attention to ensure the cable does not move out of the connector. If it's not well inserted or not straight, repeat the operation until it's OK.


5.2 Plug the control flat cable into the main board


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1. Rotate the top part until it's parallel to the bottom part, as shown in the picture.


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2. Using two fingers, one on each hand, softly pull the main board's control-1 connector tongue until it's open. Insert the flat ribbon cable coming from the control board (top part). Do it straight, without bending or twisting it in any way, so the blue side is face down.


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3. When it's totally inserted, softly push the tongue using 2 fingers, one on each hand, until it's totally closed. Pay attention to ensure the cable does not move out of the connector. If it's not well inserted or not straight, repeat the operation until it's OK.


5.3 Close the aluminum case


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1. Fit the upper part into the lower part forming a 90º angle, as shown in the picture.


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2. Note the way the display flat cable naturally bends. You should force this bending by pressing with your fingers and marking a 45º fold. Zoom into the picture to see the detail.


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3. Close the case slowly, taking care that the cables are not being trapped.


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4. Take the remaining 6 x ISO7380 M3 screws and secure the case, 3 on each side. Tighten enough, but not too much.


5.4 Attach and secure the knobs


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1. Take the 4 x mechanized aluminum knobs from the wiring bag and the 4 x super-tiny DIN916 M3 screws (headless screws).


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2. Insert the headless screw in the allen wrench and screw it partially into the knob side hole, until its head is slightly over the knob side.


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3. Repeat the step for the 4 knobs.


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4. Turn the 4 x rotary encoders until the flat cotter is pointing outside.


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5. Tighten the headless screws. Enough but not too much.


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6. Congratulations! Your Zynthian V5 is ready to boot for the first time. It's time to burn a SD-card with the latest zynthian software image.