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TOILmodular / GHOST_IN_THE_MACHINE

A noise/sound generating Eurorack module with many controls, but not much control
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Multiplexers heating up #2

Open HeitorAL9000 opened 3 months ago

HeitorAL9000 commented 3 months ago

Hi! First thanks for the great project. I've got the boards made on JLCPCB, assembled first set (control and panel) but I'm facing some issues. with all IC's except for CD4052B(any of them) I have low current usage. Once I plug a CD4052B it jumps from 80mA to 160mA on the -12v Rail similar on the +12v rail. any ideas? I've double check for shorts between rails and ground... another question is if you could provide a photo of the layout with IC numbers so it can be easier to ID each one on the board :) Thanks!

TOILmodular commented 3 months ago

Hello HeitorAL9000. Concerning your 2nd question. I attached a picture, showing the location of each CD4052 with the component name according to the schematic, For the question about the currency consumption: I do not really know why the consumption is that high. I have to admit, I am not that much of an electronic expert to answer that. I tried to check the currency consumption with my module. No idea if I did that correctly. I just used a crappy standard multimeter and checked at the entrance point for the +12V of the module. My measurement showed something between 45 and 60mA. Can it be that the ICs are not ok? Did the switching logic with the button work at all? Cheers, Daniel

GITM CD4052 Positions

HeitorAL9000 commented 2 months ago

Thanks Daniel, I've been out of service finishing building the workshop and will get back to the fault finding soon ;-) That image will help for sure. I'll be back :)