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
<andlabs> did someone here say they knew 'toaplan' on ebay?
<andlabs> I forget
<cr1901_modern> toaplan was an arcade game manufacturer?
<andlabs> yes
<andlabs> this seller stole the name =P'
<cr1901_modern> I have no idea
<andlabs> they ahve a picoPSU X68000 kit which I'll consider doing
<andlabs> assuming it's not a simple capacitor swap that me and my dad can do
<andlabs> of course it could be the X68000 Pro, whose PSU is so big it can store the entire external power brick that the picoPSU guys sell
<andlabs> but no I seem to have gotten an OG one
<andlabs> neil here says the two machines are internallye quivalent, and visibly the only real difference seems to be SASI vs SCSI and two expansion slots vs four
<cr1901_modern> protosphere and fseidel may be able to help you with your x68-kapades
* cr1901_modern volunteers them both
<andlabs> oh protosphere is actually here lol
<andlabs> it was their tweet I linked earlier
<cr1901_modern> She'll probably be awake soon (though remains to be seen if she's checking the channel today)
<ZrX-NoMs> Mmm, crusty capacitors.
<cr1901_modern> Based on the filename and "CSG", I take it that's an Amiga in bad shape?
<ZrX-NoMs> Friend sent A1200 for repairs.
<m4t> fun saturday project https://photos.app.goo.gl/c46N8gFcRkfaBkDg8 (i fixed that solder spike but the later pics i took suck)
<andlabs> ZrX-NoMs: as long as it's the capacitors and not the battery
<andlabs> m4t: what is it
<andlabs> ah
<m4t> uhm, in other news the opl3's that don't say OPL appear to be legit :)
<fseidel> andlabs: don't bother with the recap, the picoPSU is the way to go
<fseidel> (for the PSU, anyway, recapping the rest of the machine is probably a good idea)
<fseidel> I got mine dead, recapping the PSU brought it back for a few months before something else in the PSU died, and this seems like a common story among many X68K owners
<fseidel> the PSUs just kind of suck
<fseidel> this integrated AC-DC + PicoPSU board rules: https://github.com/mattsoft/X68K_Pico_PSU_v2
<fseidel> also, on models with non-rechargable RTC batteries, the original is a CR2450 with solder tabs
<fseidel> irritatingly, the holes are a little off and don't cleanly fit a CR2450 holder, but if you bend the tabs a bit it'll go in
<fseidel> I've also seen someone run wires from the battery pins on the I/O board to a separate battery case which was velcro-ed to the main chassis, if I had to do it again, I'd do that.
<TD-Linux> and yes toaplan's PCBs are the same as the PCB linked above
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<andlabs> yeah
<andlabs> I just vaguely remember someone here said something to me about them but I don't know what
<andlabs> I already asked them the questions I had about their board
<andlabs> the PSU on the X68000 I just bought broke *while the sellers were testing it for the auction*, which was great
<andlabs> [22:17:43] <fseidel>also, on models with non-rechargable RTC batteries, the original is a CR2450 with solder tabs
<andlabs> goddamnit even the batteries are superior to western computers
<andlabs> I can only guess that varta batteries were sold for less than a half of a penny on the dollar
<andlabs> anyway I don't know what mine will ahve but I'm 50% sure it's the original X68000
<sorear> interesting case design
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<andlabs> ah it was TD-Linux who just mentioned they know the person
<TD-Linux> yeah the psus are not good. I don't know if anyone has analyzed the design to figure out why, but they are all guaranteed to fail eventually, even if they work now
<TD-Linux> often the primary side transistor shorts and burns out the transformer as well, so the rebuild kits have to contain that too, it's not just recapping
<andlabs> fun
<andlabs> anyway good night
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<andlabs> I bought the board and the transformer for the X68000 PSU replacement
<andlabs> just need to get the picoPSU, but the mini-box website is currently broken
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<fseidel> andlabs: I think the earlier X68000s do use rechargable cells (Varta(?)), yours may be one of them
<fseidel> the first thing to do when opening the machine is removing the I/O board and getting that battery out
<andlabs> sure thing
<andlabs> gotta open it to do the PSU replacement of course
<andlabs> oh I had to turn off my adblocker for the picoPSU site, lol
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<cr1901_modern> balrog: A while back, you recommended some digital calipers- Idr which channel. Do you remember what brand they were?
<andlabs> misread: digital catgirls
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