marwis Posted July 20, 2014 Report Share Posted July 20, 2014 Hi, ich have build the AOUT_NG for my Seq4, but no CV on any Pin goes out. In CV menu AOUT_NG is selected. Gate is ok. Soldering is ok, no bridges or disconnections. I measured directy on JP1 the DAC output, but no voltage are here. The connection between J1 on AOUT_NG and J19 on LPC17 now is ok (Pin3 on RC1), for the first time I have connect Pin3 to SO, Pin4 to SC and Pin5 to RC1 :-(. Is my DAC damaged now? Have anybody a idea? txh markus Quote Link to comment Share on other sites More sharing options...
Highcooley Posted July 22, 2014 Report Share Posted July 22, 2014 Hi Markus How long is your cable between the LPC17 and the AOUT_NG? I had some trouble in the beginning, when I had a cable which was longer than 10-20cm. I don't see any reason, why you should have damaged the chip with the wrong connection you mentioned. As long as you don't connect these pins to +/-12V, you should be save. cheers Andy Quote Link to comment Share on other sites More sharing options...
marwis Posted July 23, 2014 Author Report Share Posted July 23, 2014 Problem solved! USB Power is to low, if i use external Power, everything is ok. Thanks for help. Quote Link to comment Share on other sites More sharing options...
Highcooley Posted July 24, 2014 Report Share Posted July 24, 2014 Perfect, you are welcome! Quote Link to comment Share on other sites More sharing options...
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