Electronic Manufacturing, electronics podcast, MacroFab, macrofab engineering podcast
Podcast
232

MEP EP#232: Chonky Motherboards

Podcast Notes

Parker

  • The Cat Feeder Unreminder
    • Different implementations to accomplish the goal

Stephen

  • Synth DSP replacement
    • Korg MS2000
    • Was pulling an additional 500mA on the power supply
    • Found a blown surface mount fuse
    • The DSP chip XCB56362PV100 was hot to touch
      • Replaced with part found on ebay
      • Wasn’t sure if this part needed programming
  • LED Matrix Driver – IS31FL3741
    • 39×9 LED matrix = 351 individual color leds or 117 RGBs
    • QFN-24 package
    • 256 levels of PWM control and 256 levels of DC current control
    • Layout vs code

R.F.O.

  • Brew Day Updates!

The "motherboard" of the synth Stephen repaired. From a Korg MS2000.

The “motherboard” of the synth Stephen repaired. From a Korg MS2000.

Cat Chonker classification chart.

Cat Chonker classification chart.


Special thanks to whixr over at Tymkrs for the intro and outro!