eptheca Posted November 30, 2011 Report Share Posted November 30, 2011 I am building a MB64 with modules from SmashTV I have already built 2 MB SID's so I am familiar with using MIOS studio I have built the Core, and MIOS Studio can't connect to it. On the Core I have left out the Bridge rectifier, the "huge" el.cap, C6, voltage regulator, transistor and pots As I understand these parts are for powering the Core and for the LCD, is this correct? I am powering the Core from another 5V source, and I am not using a LCD +5V and Ground connected to the voltage regulator position I have checked all solder joints, tried with another PIC and another Optocoupler Checked the MIDI sockets etc. My MIDI interface and cables works fine with MIOS on my MB SID's any suggestions? Quote Link to comment Share on other sites More sharing options...
ilmenator Posted December 1, 2011 Report Share Posted December 1, 2011 Did you connect to the output pad of the voltage regulator? Alternatively, try connecting your 5V power to J2. Quote Link to comment Share on other sites More sharing options...
eptheca Posted December 1, 2011 Author Report Share Posted December 1, 2011 thanks I have tried that now, but no difference I have meassured voltage to the 2 places on the PIC and on the Opto, all fine I can't see how the parts I have left out can affect the MIDI could it be the crystal? Quote Link to comment Share on other sites More sharing options...
eptheca Posted December 1, 2011 Author Report Share Posted December 1, 2011 DUH! It was the MIDI connection pins For some reason I assumed that the pins corresponded to the holes for the MIDI sockets, but it's the opposite Up and running :) Quote Link to comment Share on other sites More sharing options...
ilmenator Posted December 1, 2011 Report Share Posted December 1, 2011 Glad you solved it :thumbsup: Quote Link to comment Share on other sites More sharing options...
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