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External DC Supply on MiniDSP Kits

1. marn id s p External DC Supply on MiniDSP Kits Warning A wrong connection could damage the board and unfortunately void your MiniDSP kit Warranty Please make sure to double check your DC supply connectivity to the board by checking that you did not introduce short circuits in the process of modifying your board Important note This application note only applies for the Rev O purchased before May 2010 of the miniDSP Kits If you miniDSP does not look like the picture below then you have a rev1 and this note does not apply Please refer to the miniDSP user manual for more info What you will need A multi meter to check the polarity of your DC power supply a soldering Iron to build a custom cable finally some patience to make sure you do the following steps as we describe them Here is an overview drawing of the MiniDSP kit with the expansion connectors on each side INPUTS SS as P External DC TF pos m mm cfm n ico LII 10 jm m Coe JEg C187 R connection ia C15 Cll 4 5 to 24VDC qe inl ml E se GROUND 0o Aaa ui ee ee a ose ee co ee FIF Z ee p ee p ae eo a m o R112 Rit im lim ae ial im OUTPUTS Which Power Supply should I use MiniDSP kits require a stable clean source of DC power ranging from 4 5V to 24VDC You can easily power the device from a good quality cell phone USB charger using the USB port Some of you may wa
2. nt to utilize the external DC expansion port to keep the USB port free for programming use While the power consumption of the board is really low 250mA 5V you need to know the polarity positive and negative of your PSU before going any further in this process Use a multi meter to double check you have that right then move on to the next step How to connect your external supply to our female headers The easiest way to connect to our female headers is to find some male 2 5mm pitch rectangular connectors Then build yourself a cable to allow easy plug in to female header Important note Do not connect anything else to the other pins as you could damage the board by inadvertence Figure 1 Example Male Header Still un sure on how to connect your MiniDSP kit to an external DC supply If in any doubts don t hesitate to contact our technical team for support on how to connect your external DC supply to our kit or simply post your pictures to the community forum Thats why we re here

External DC Supply on MiniDSP Kits

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