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Author Topic: Gimmick repro with sunsoft 5PB  (Read 65053 times)
JetBlackSVW
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« Reply #60 on: December 03, 2015, 03:55:05 PM »

Thank you very much for the guide!

Maybe I will build one next year, but that sound circuit seems like a lot of work.
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jensma
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« Reply #61 on: December 03, 2015, 04:51:24 PM »

Yeah, it kinda is when you don't get a 5B. :/

It's worth the effort though Cheesy
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jensma
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« Reply #62 on: April 27, 2016, 05:01:41 PM »

Hey there!

Since I kinda disliked my Gimmick repro based off a FME-7 I made a pcb for it.

This is kinda the "beta"-Version of it, but it works just fine (the silkscreen '56pF should actually be 10nF and you have to connect two pins of the prg rom, see this photo -> http://jensma.de/upload/files/9kooqcpuxjaRwRPbsJrR0.jpg Smiley )

You have to transplant your FME-7 and the capacitor of your donor card. The eproms (I used two 27C020) can be soldered in without any rewiring. Since there was no space left for any more DIP packages (except the AY-3-8912) I had to use soic's for the 74LS74 and 74LS139.

If anybody want a pcb or two - just drop me a pn. I live in germany and international shipping should be around $3.60, the price for one pcb is $3  Grin

PS: The pcb has the exact thickness of original famicom-pcbs and it fits perfectly into a sunsoft-shell. In addition to that it's ENIG-plated!  Starman Starman Starman
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Ryo
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« Reply #63 on: April 28, 2016, 11:00:44 AM »

Hey there!

Since I kinda disliked my Gimmick repro based off a FME-7 I made a pcb for it.

This is kinda the "beta"-Version of it, but it works just fine (the silkscreen '56pF should actually be 10nF and you have to connect two pins of the prg rom, see this photo -> http://jensma.de/upload/files/9kooqcpuxjaRwRPbsJrR0.jpg Smiley )

You have to transplant your FME-7 and the capacitor of your donor card. The eproms (I used two 27C020) can be soldered in without any rewiring. Since there was no space left for any more DIP packages (except the AY-3-8912) I had to use soic's for the 74LS74 and 74LS139.

If anybody want a pcb or two - just drop me a pn. I live in germany and international shipping should be around $3.60, the price for one pcb is $3  Grin

PS: The pcb has the exact thickness of original famicom-pcbs and it fits perfectly into a sunsoft-shell. In addition to that it's ENIG-plated!  Starman Starman Starman

Cool!!! Shocked
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ImATrackMan
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« Reply #64 on: May 03, 2016, 06:17:53 PM »

(except the AY-3-8912) I had to use soic's for the 74LS74 and 74LS139.

I'm amazed by the dedication necessary to make repro boards specifically for Gimmick!, but I'm still surprised by the prevalence of the AY when Gimmick uses an equivalent of the YMZ. Using one would have cut down on board size and necessary components.
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jensma
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« Reply #65 on: May 03, 2016, 07:03:50 PM »

(except the AY-3-8912) I had to use soic's for the 74LS74 and 74LS139.

I'm amazed by the dedication necessary to make repro boards specifically for Gimmick!, but I'm still surprised by the prevalence of the AY when Gimmick uses an equivalent of the YMZ. Using one would have cut down on board size and necessary components.
Oh, I didn't know that. Well, too late  Grin
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Arkanix38
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« Reply #66 on: May 04, 2016, 01:01:21 AM »

Might have to grab one of these boards for when I feel like making something quickly. Been meaning to play Gimmick (without the obligatory pirate cart or spending all of my university fund)
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xIceMan
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Not dead yet.


« Reply #67 on: May 04, 2016, 08:15:18 AM »

Is there a schematic for the YMZ to use for gimmick?
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jensma
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« Reply #68 on: May 04, 2016, 06:10:00 PM »

Is there a schematic for the YMZ to use for gimmick?

https://en.wikipedia.org/wiki/General_Instrument_AY-3-8910#Variants

Some of the YMZ*-variants got pretty similar pinouts compared to the AY-3-8912. That's pretty handy, since they come in smaller packages like QFP. Unfortunatly I'm not able to find a place to buy them.  Sad
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Pit
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« Reply #69 on: May 05, 2016, 09:24:38 AM »

Great job on that !!
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jensma
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« Reply #70 on: May 05, 2016, 11:40:25 AM »

Great job on that !!

Thanks, but this is the work of the community and other nifty contributors. I just collected the bits and pieces and throw a pcb together.

PS: I sent new layouts to the factory yesterday. When I receive the pcbs and they work like intended I'll release the layout files for everyone to use.  Grin
« Last Edit: May 05, 2016, 12:01:34 PM by jensma » Logged

ImATrackMan
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« Reply #71 on: May 14, 2016, 10:00:45 AM »

What format are they? KiCAD, Eagle, Altium, etc?
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jensma
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« Reply #72 on: May 15, 2016, 07:52:13 AM »

What format are they? KiCAD, Eagle, Altium, etc?

KiCAD. Still waiting for the pcb's Smiley

Post Merge: May 17, 2016, 01:42:51 PM
The boards arrived and they're working  Grin Just drop your compenents in and solder them down.

Here's the kicad fesign files and plot files for manufacturing, as promised: http://jensma.de/shop/tutorials/gimmick.zip
The files are released under this license - http://creativecommons.org/licenses/by-nc/4.0/ - So be nice  Kiss
« Last Edit: May 17, 2016, 01:44:03 PM by jensma » Logged

number47
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« Reply #73 on: May 21, 2016, 06:03:33 PM »

I see you have a neat little shop for these boards. How much is the shipping (to Estonia)?
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jensma
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« Reply #74 on: May 21, 2016, 07:01:21 PM »

I see you have a neat little shop for these boards. How much is the shipping (to Estonia)?

3,20 Smiley
I do have some AY-3-8912's kicking around, if you need one  Grin
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