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Author Topic: [NES/Famicom] 100k Potentiometer Mod for Expanded Audio Channels  (Read 395 times)

Offline Curriculum Crasher

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Although DefleMask does not support expanded audio in the NES system module, I thought I'd share photos from my recent mod for those who are interested in hearing (and mixing) the additional channels for use in new arrangements and covers on other systems. Rather than the typical 47k fixed resistor, I opted for a 100k Potentiometer to vary the mix for each expanded audio cart. This link to my blog includes stop-step instructions, supply list, and tons of photos. I'm a newbie at hardware mods, so please let me know if there's a better way and I'll update. Enjoy!

https://curriculumcrasher.com/2017/01/24/nes-expanded-audio-100k-pot-mod/
Genesis Consoles:
MD1 VA2 Discrete YM2612
MD1 VA3 Discrete YM2612
MD1 VA6 Discrete YM2612
MD1 VA7 ASIC YM3438
MD2 VA1 ASIC YM3438
MD2 VA1 ASIC YM3438 (w/ Helder's MegaAmp)
MD2 VA2.3 Discrete YM2612
MD2 VA3 ASIC YM3438
MD2 VA4 GOAC YM3438 (MK-1451 Majesco)