Part one can be found here: I’ve been doing some research on this beast and it’s been really hard to track down service info for this model Crumar in particular.
The ones in the FS1R, which although having 8 ops, only has 1 feedback loop and simpler envelopes and other drawbacks when compared to the OPS3 in the 77/99Ībout a million chips from things like the vector synths, PSRs, etc. OPS3 + EGM2: used in SY77, TG77, and SY99, clearly an almost exact merger of the OPSII and OPZII but with many new features and, by volume of features, surely the most capable FM chips Yamaha ever made YM2604/OPSII + EGM: used in DX7 II/S and TX802 YM2128(0)/OPS + YM2129(0)/EGS: used in DX7, TX7, and TF1 and in DX9 with its crippled 4-op firmware YM2424/OPZII: OPZII + fixed frequencies down to 0 Hz, still only 8 channels as the only synth in which it was used, the V50, obtained its 16 channels by using 2 OPZII chips YM2414/OPZ: OPM/P + 7 extra waveforms + fixed frequencies + EG effects, used in TX81Z, DX11, TQ5, YS100, YS200 YM2164/OPP: basically identical to OPM, used in FB-01, DX100, DX21, DX27(S) YM2151/OPM: 8 channels, sine, used in arcade boards OPL*: used in SoundBlaster/AdLib-type cards, 4- or 2-op chips that added more waveforms and channels as the lineage descended
OPN* (YM2413, YM2608, YM2612, YM3438, YMF278, etc.): used in games consoles, 3 or 6 channels, sine only, sometimes built-in DAC or SSG square wave chip
#Opcode galaxy patch editor for dx7 series#
List and Breakdown of Yamaha FM Synthesis series chip set and instruments: I have been vicariously following a conversation on the Yahoo Yamaha DX list and figured i should post this for posterity.
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