Echopraxia Posted August 28, 2010 Report Share Posted August 28, 2010 Hi every body, I have some concern with my DOUT4 board. I am trouble shooting it for my MBFM and on one shift register (J4) I am getting odd voltages on two pins (3.6v and 1.6v). When I pull the register out I checked the voltages and was getting 4.8v so I tried another shift register and got the same 3.6 and 1.6 voltages when inserted. I looked at the DOUT schematic and saw that only 2 pins are supposed to get 5v but on my board I am getting 4.8v in at least 4-6 places. Can any one tell me if this is normal? I am using a 9vDC 400ma to power a MBFM with full control surface. 4.8v is what I am getting across all active pins on all shift registers. Reason why I ask all of this is because I cannot get my MBFM matrix working which requires that 4 DIN buttons get connected to the DOUT board. Regards, echo Quote Link to comment Share on other sites More sharing options...
nILS Posted August 29, 2010 Report Share Posted August 29, 2010 one shift register (J4) J4 is not a shift register. Which one do you mean? I checked the voltages and was getting 4.8v Where? I am getting 4.8v in at least 4-6 places Where? Give us some more info ;) Decent pictures could help as well. Is this a regular DOUT module or have you already done any mods for the matrix or the likes? Quote Link to comment Share on other sites More sharing options...
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