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WEEE-Reg.-Nr. DE 85504828

Audio Intense - DIY electronic kits

interconnections
Plakat

Interconnections of Cd-Pro2LF

Power supply / CDPro / Display PCB / jitter-killer/ digital out


overview




 



What is connected to the Display PCB:


 








What is connected to the CD-PRO2:


 



instructions for cables:

  • In the tables above it is shown what is connected to what that is the Interconnection which needs to be made.
  • Finally you need to make the interconnection by soldering the wires. This is not a "no brainer".
  • Se the instructions. Do not use enormous thick power cables. If you want to simulate thick cables use additional 100uf capacitors with a 220nF capacitor parallel close mounted in the cable close to the connector. In this way pulses are hardly influenced by the cable resistance.
  • Do not use capacitors of 4700uF after the regulators as the regulators may respond as if they see a short circuit at start up. In this case they simply do not start at all.
  • The additional 220nF is used as the 100uF has a relatively high impedance for high frequencies because of the folding and electrolytic behavior.
  • See here for an explanation on how to make the cables.
  • The explanation gives a guideline for the use of the JST and the Stocko connectors without special tools.

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Interconnection support

It all starts with a small bag of connectors. The large brown ones are easy to connect because there are cables where you can solder the connectors. The small JST ones look problematic.
If you do not have a multi action folding and stripping tool from JST then you have to go another way:



 First get rid of the ears on the terminals as they otherwise will obstruct the movement into the plastic housings.  

   

Then you place the metal terminal on the Bergstick connector as mounted on the display PCB. You use this connector just as a tool. Put a carton box on your work table and work about 25 cm away from your nose. As you can see in the side view the terminal is put in such a way on the connector that you can solder it from the top side. Pre solder the terminal fast and with hardly any solder material. 

Now you take the flat cable for the communication and you solder the cable with the red flag into the terminal on the left hand side. This is the one that is shown. First you need however to prepare the cable.  For stripping the cable just make with a cutter a brief cutting line from left to right on one side and on the other side of the flat cable about 1 mm before the edge of the cable.  

After that you cut with the cutter for about 6mm between the wires in the flat cable.  After this you can pull by hand the plastic from the cable end. The stranded wire you first pre-solder rapidly before it is soldered to the terminal.  The result is that the terminals are all soldered to the flat cable and in correct orientation.  

If you followed the procedure above then you can click the terminals in one movement into the plastic holder. For this you flip the cable so that you have the red flag on the left hand side and the terminal as in the figure below on the utmost left side.  Now you can see the plastic springs lock onto the terminals.    


interconnections

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