Actually I have a SWN-7N PSU (12v, 5v, -5v) since only play 15k games:
https://www.tops-game.jp/products/detai ... ct_id=2609
Yesterday I found an SWN JVS model (12v, 5v, 3.3v). I like it since it has some connectors instead of screws to hook the wires:
https://www.tops-game.jp/products/detai ... ct_id=2610
As I see there are only positive voltages: 2x 5v (V1?), 2x 12v (V2?), 1x 3.3v (V3?) and a lot of GNDs but no -5.5v anymore. Is this JVS PSU ok for my 15k jamma boards?
Thanks!!
JVS PSU
- nem
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- erzane
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Re: JVS PSU
Maybe a game like Kiki kaikai would use -5v for audio?
Is there a list somewhere with those games?
Is there a list somewhere with those games?
Arcade's nice when done well
- nem
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Re: JVS PSU
You can build a simple voltage inverter circuit. Feed +5v in, and you get -5v out.
I have one attached to my JAMMA>JVS converter which works nicely, as the -5v is generally low current.
I probably have some units knocking around, but shipping would be $$$.
Found a schematic, which looks similar to what I used.
Cut off pins 1, 6 & 7.
Solder a cap (in the correct orientation) between pins 2 & 4.
Solder a cap (in the correct orientation) between pins 5 & 3, and connect a ground wire to pin 3
Slam +5v into Pin 8, get -5v out of Pin 5.
I have one attached to my JAMMA>JVS converter which works nicely, as the -5v is generally low current.
I probably have some units knocking around, but shipping would be $$$.
Found a schematic, which looks similar to what I used.
Cut off pins 1, 6 & 7.
Solder a cap (in the correct orientation) between pins 2 & 4.
Solder a cap (in the correct orientation) between pins 5 & 3, and connect a ground wire to pin 3
Slam +5v into Pin 8, get -5v out of Pin 5.
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Snakes: They're like bits of rope, only angrier.
- erzane
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Re: JVS PSU
Can you show me how you did it? A pic of your unit?dj_johnnyg wrote: ↑November 7th, 2019, 3:47 am You can build a simple voltage inverter circuit. Feed +5v in, and you get -5v out.
I have one attached to my JAMMA>JVS converter which works nicely, as the -5v is generally low current.
I probably have some units knocking around, but shipping would be $$$.
Found a schematic, which looks similar to what I used.
7660-circuit.gif
Cut off pins 1, 6 & 7.
Solder a cap (in the correct orientation) between pins 2 & 4.
Solder a cap (in the correct orientation) between pins 5 & 3, and connect a ground wire to pin 3
Slam +5v into Pin 8, get -5v out of Pin 5.
Arcade's nice when done well
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Re: JVS PSU
Sorry, didn't get a notification for this.
I can't show you the PCB, as that is encased in adhesive heat-shrink. For the JVS, I just soldered to the +5v and Ground, then soldered to one of the (unused) -5V pins on the JAMMA connector.
I can't show you the PCB, as that is encased in adhesive heat-shrink. For the JVS, I just soldered to the +5v and Ground, then soldered to one of the (unused) -5V pins on the JAMMA connector.
Snakes: They're like bits of rope, only angrier.