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Started by Tiido Priimägi, June 23, 2009, 07:38:27 am
Quote from: Tiido Priimägi on June 25, 2009, 02:24:14 amI can see some interection points that are missing like where the power input is, and I see ground touching the line that is supposed to be VCC, that can be quite confusing
Quote from: Lawrence on June 25, 2009, 10:23:10 amQuote from: Tiido Priimägi on June 25, 2009, 02:24:14 amI can see some interection points that are missing like where the power input is, and I see ground touching the line that is supposed to be VCC, that can be quite confusing Image and schem file updated.I fixed the two joins on power, but I don't see the ground touching VCC. Can you clarify where that is?
Quote from: antron on June 25, 2009, 08:07:51 amIs the standard audio out from a G/MD 2 pre-amplified?
Quote from: Tiido Priimägi on June 29, 2009, 09:04:32 pmI would need a quad opamp for PSG and FM + a dual opamp for output part.... you will need some buffering on YM2612 outputs since they're rather high impedance and really quiet anyway, and if there's anything wrong you get massive distortion :/Using additional opamp will result in more components really.....
Quote from: Tiido Priimägi on September 06, 2009, 06:47:15 amYep, it does give best sound than any unmodded version. All systems with 5487, 5600, 5608 and 5700 ASICs can have this mod (that includes Wondermega, Xeye, Nomad, CDX to name a few).
Quote from: Ace on December 05, 2009, 03:57:17 pmThere's really no point in adding Tiido's circuit to a Sega CDX, as its sound is already quite clear out of the box. It's just a little quieter than most of the other Genesis systems.
Quote from: Tiido Priimägi on December 07, 2009, 12:09:31 pmI have a MultiMega around, and it does sound very nice, at least MD side... there is considerable amount of digital noise and video noise in the sound, particularly because of the compactness. You can fix this by adding a linear power regulator and use it to power all audio parts and nothing else. This is what I did in my MD2 and things became really nice when it comes to noises in sound.I need to do more research around CDX / MultiMega, its compactness makes things quite challenging though. to get good sound, you will have to kick out the 315-5684, there's nothing you can do about it... I believe its some octal opamp by ROHM.