ChanServ changed the topic of ##yamahasynths to: Channel dedicated to questions and discussion of Yamaha FM Synthesizer internals and corresponding REing. Discussion of synthesis methods similar to the Yamaha line of chips, Sound Blasters + clones, PCM chips like RF5C68, and CD theory of operation are also on-topic. Channel logs: https://freenode.irclog.whitequark.org/~h~yamahasynths
<Nerionaya> whee i'm an idiot
<Nerionaya> decided to crack open my yamaha electone me-50 since it was having trouble saving the settings
<Nerionaya> look inside, find no battery-- *then* look at the schematic, seems to use a supercapacitor
<Nerionaya> obviously I have batteries but I don't have any of those lying around anyway
<cr1901_modern> How old is the ME-50?
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<sorear> supercap + sram?
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<Nerionaya> my schematic sucks but as far as I can tell, yes
<cr1901_modern> https://www.adafruit.com/product/1885 700 Farad capacitor. Only $19.95
* sorear remembers when 1000 µF was a lot
<andlabs> *watches Nerionaya's organ pop*
<Nerionaya> woah
<Nerionaya> but yeah I really don't want to separate everything from the circuit board and take it all apart so I think since I know there isn't a battery spewing all over the motherboard I'll let it be for now
<Nerionaya> "but nicole there could be a capacitor spewing all over" still better than a battery... somehow
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<andlabs> but is it an electrolytic capacitor
<andlabs> finally found a youtube video where someone shows what that capacitor is
<andlabs> 180µF 400V
<Nerionaya> lol I was hoping you had found a video of an ME-50 repair
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superctr__ is now known as superctr
<Lord_Nightmare> lol the url implies it was once $215
<Lord_Nightmare> was $49.95 reduced to $19.95
<superctr> Product ID: 215
<Lord_Nightmare> I'm actually curious how it works, it uses a parallel port dongle as you mentiond on twitter
<Lord_Nightmare> ah
<Lord_Nightmare> i'm curious if its a parport DAC or if its something more complex
<Lord_Nightmare> maybe msm6295 ADPCM, or it could be TMS5220 based etc
<Lord_Nightmare> if its tms5220 based then the chip inside it alone is worth more than the $20 per item
<Lord_Nightmare> it could be tsp50c1x based though like the last echoII cards for apple2
<Lord_Nightmare> those are less useful but still useful
<superctr> probably just a dac
<superctr> 6295 is unlikely, since that uses ROM
<Lord_Nightmare> hmm true. could it be msm5205 and a FIFO?
<Lord_Nightmare> it could also be CVSD based
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<cr1901_modern> balrog: Remember how we weren't sure whether this person was Japheth? https://github.com/Baron-von-Riedesel
<cr1901_modern> Well, he filled out his name field. You were correct
<cr1901_modern> indeed it is Japheth under a new name
<cr1901_modern> https://github.com/Baron-von-Riedesel/HX/issues/7 Also, open to any info re: this
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