Author Topic: SD2SNES REVISION G ???  (Read 35295 times)

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Offline D4v3WTF

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Re: SD2SNES REVISION G ???
« Reply #15 on: April 26, 2016, 01:52 PM »
I've tested the whole thing, but now The music in MSU-1 games cracks and I don't know why
N64 PAL Games Collection: 204/243
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Everdrive 64 v2.01 modded UltraCIC II
SD2SNES Rev. F modded Rev. H

Offline dreimer

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Re: SD2SNES REVISION G ???
« Reply #16 on: April 26, 2016, 01:58 PM »
@ikari_01: Any clue whats wrong?
* dreimer cancels today's plans for now
@claudiosperes: Any pic from the PCB's other side for us? :D
« Last Edit: April 26, 2016, 02:02 PM by dreimer »

Offline TheShadowRunner

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Re: SD2SNES REVISION G ???
« Reply #17 on: April 26, 2016, 02:13 PM »
I've tested the whole thing, but now The music in MSU-1 games cracks and I don't know why
Probably your 5v source point..?

Offline ikari_01

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Re: SD2SNES REVISION G ???
« Reply #18 on: April 26, 2016, 02:13 PM »
Maybe running the 5V through the ferrite bead (that was just removed) could help. Just take care you never connect 3.3V and 5V ;)

Offline dreimer

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Re: SD2SNES REVISION G ???
« Reply #19 on: April 26, 2016, 02:22 PM »
So the original RevG has FB341 still there, just feeded with 5V?

Offline D4v3WTF

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Re: SD2SNES REVISION G ???
« Reply #20 on: April 26, 2016, 02:26 PM »
Now it works, I've connected it with the pic12f629 5v and the cracking is gone.



« Last Edit: April 26, 2016, 02:27 PM by D4v3WTF »
N64 PAL Games Collection: 204/243
N64 PAL Demo Collection: 1/1
N64 Region Free NTSC Games: 1
Everdrive 64 v2.01 modded UltraCIC II
SD2SNES Rev. F modded Rev. H

Offline dreimer

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Re: SD2SNES REVISION G ???
« Reply #21 on: April 26, 2016, 02:31 PM »
I'd really like to see how the PCB is contracted on RevG ^^ I modded my RevE 1:1 already and that mod should be 1:1 what was changed too.

Offline ikari_01

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Re: SD2SNES REVISION G ???
« Reply #22 on: April 26, 2016, 02:35 PM »
You are right, I forgot to mention that it would be better to get 5V from behind L391. In the original design, FB341 remains but the connection from the 3 vias (3.3V) is removed. Instead the 5V line at the bottom of the PCB (going from PIC12F629 to the 14-pin debug port) is tapped and connected to FB341.

Offline dreimer

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Re: SD2SNES REVISION G ???
« Reply #23 on: April 26, 2016, 02:42 PM »
So best way would be turning the FB341 about 90° to keep it still active, but disconnected from 3.3V and then solder a cable the way D4v3WTF did it to the now free side?
Or maybe I could cut the line of 3.3V with a knife and then solder even more easily to it...
« Last Edit: April 27, 2016, 01:22 AM by dreimer »

Offline ikari_01

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Re: SD2SNES REVISION G ???
« Reply #24 on: April 26, 2016, 02:49 PM »
FB341 probably isn't that important for 5V operation because it has already been filtered at the input (L391). But it can't hurt either. It can still slightly improve noise performance on 1chip consoles.

Offline D4v3WTF

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Re: SD2SNES REVISION G ???
« Reply #25 on: April 26, 2016, 03:04 PM »
Okay, I've changed it again to match Ikaris suggestion. With the FB341 attached, it sounds a bit better I think. Thank you Ikari!



N64 PAL Games Collection: 204/243
N64 PAL Demo Collection: 1/1
N64 Region Free NTSC Games: 1
Everdrive 64 v2.01 modded UltraCIC II
SD2SNES Rev. F modded Rev. H

Offline TheShadowRunner

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Re: SD2SNES REVISION G ???
« Reply #26 on: April 26, 2016, 03:05 PM »
Yeah good idea, cut the trace between letters F and B (or B and 3) at the FB341 marking, and join 5v from the PIC12F629.

I'm wondering if it's really necessary though, I find MSU volume to be just fine (the mix between original effects and MSU music seems well balanced to me, for CT/megaman/Fzero, etc), and I don't even use the new "MSU volume boost" feature from 1.7!

Offline dreimer

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Re: SD2SNES REVISION G ???
« Reply #27 on: April 26, 2016, 04:20 PM »
I tend to say that some db more would be quite nice. (Some more BASE would rock even more, but that seems to be the SNES' fault) Aaaand the main thing is sd2snes is more silent than Higan/BSNES which makes it difficult to maintain one hack for everything. OK, will try my luck today. I have a 1 Chip SNES Jr and maaaany PAL ones, we will see ^^

(I use the boost feature @minimal, but the sound becomes distorted by that in my case)
« Last Edit: April 26, 2016, 05:14 PM by dreimer »

Offline rafaelalvesals

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Re: SD2SNES REVISION G ???
« Reply #28 on: April 26, 2016, 05:27 PM »
I'd really like to see how the PCB is contracted on RevG ^^ I modded my RevE 1:1 already and that mod should be 1:1 what was changed too.

here is the pics of mine =)





Offline dreimer

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Re: SD2SNES REVISION G ???
« Reply #29 on: April 26, 2016, 05:39 PM »
Nice, thx ^^
I assume that the small connector to the front side next to the text "R341" is directly connected to the upper right leg of U331 then... At least thats what I believe to see on the pics ^^

EDIT:
OK, turned the FB341 by 90° and soldered a new line to the upper right pin of the PIC12F629 aka the same way @D4v3WTF did it. Works fine, sounds fine and seems a bit louder, too. Now I went back to 0 db vol increase and I like it ^^

I proudly intruduce my ikari_01 hand made Rev.E2 .... errr F .... G I mean ^^

« Last Edit: April 27, 2016, 01:29 AM by dreimer »