JVS PSU

Arcade cabinet hardware and accessories
Post Reply
User avatar
erzane
Not Made In Japan
Posts: 596
Joined: August 23rd, 2008, 12:52 pm
Location: CH
eBay: Gab79

JVS PSU

Post by erzane » October 25th, 2019, 3:52 pm

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!!
Attachments
10.jpg
Arcade's nice when done well

User avatar
nem
Posts: 1610
Joined: August 17th, 2008, 6:59 pm
Location: Finland

Re: JVS PSU

Post by nem » October 25th, 2019, 4:35 pm

erzane wrote:
October 25th, 2019, 3:52 MP
Is this JVS PSU ok for my 15k jamma boards?
For anything that doesn't use -5V, yes.

If you have any older Taito boards, those use -5V for audio.

User avatar
erzane
Not Made In Japan
Posts: 596
Joined: August 23rd, 2008, 12:52 pm
Location: CH
eBay: Gab79

Re: JVS PSU

Post by erzane » October 25th, 2019, 5:52 pm

Maybe a game like Kiki kaikai would use -5v for audio?
Is there a list somewhere with those games?
Arcade's nice when done well

User avatar
nem
Posts: 1610
Joined: August 17th, 2008, 6:59 pm
Location: Finland

Re: JVS PSU

Post by nem » October 26th, 2019, 3:21 pm

The Kiki Kaikai manual does mention -5V, so it's possible the board uses it.
erzane wrote:
October 25th, 2019, 5:52 MP
Is there a list somewhere with those games?
Unfortunately no.

User avatar
erzane
Not Made In Japan
Posts: 596
Joined: August 23rd, 2008, 12:52 pm
Location: CH
eBay: Gab79

Re: JVS PSU

Post by erzane » October 27th, 2019, 7:40 pm

Thanks
Arcade's nice when done well

User avatar
dj_johnnyg
Loves CAVE
Posts: 739
Joined: August 18th, 2008, 5:53 am
Location: Auckland, NZ

Re: JVS PSU

Post by dj_johnnyg » 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
7660-circuit.gif (6.34 KiB) Viewed 648 times
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.
Snakes: They're like bits of rope, only angrier.

User avatar
erzane
Not Made In Japan
Posts: 596
Joined: August 23rd, 2008, 12:52 pm
Location: CH
eBay: Gab79

Re: JVS PSU

Post by erzane » November 16th, 2019, 10:43 pm

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.
Can you show me how you did it? A pic of your unit?
Arcade's nice when done well

User avatar
dj_johnnyg
Loves CAVE
Posts: 739
Joined: August 18th, 2008, 5:53 am
Location: Auckland, NZ

Re: JVS PSU

Post by dj_johnnyg » January 18th, 2020, 11:31 pm

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.
Snakes: They're like bits of rope, only angrier.

Post Reply