- Thread starter Krec9
- Start date
biggestsonicfan
Professional
Is your Astro City wired for JAMMA? Let's look at what's inside the cab before we put the game in it.
Then a harness like the one you sent should be good, one thing is that u may need an external power supply as typically the jamma edge doesnt give enough power
ItsBobDudes
Grand Master
The VF game boards pull too much current for the tiny JAMMA edge finger. The model 2 is looking for 5v power on about 15 pins on the filter board and just as many to ground.
https://www.arcade-projects.com/thr...d-worrying-and-learned-to-love-the-bomb.8697/
specifically this post:
https://www.arcade-projects.com/thr...and-learned-to-love-the-bomb.8697/post-334200
So I’m going to need the model 3 harness in order for this to work I have a sega new Astro city wired for jamma I have no issues playing my Naomi on here when hooked to the capcom IO
ItsBobDudes
Grand Master
What power supply do you have in your NAC ?
Attachments
ItsBobDudes
Grand Master
Your best bet might be to get a harness that can bring these 5v and ground lines to the filter board.
All of the controls, RGBS, and mono sound can be handled by the JAMMA connector with this thing you pictured:
All of the controls, RGBS, and mono sound can be handled by the JAMMA connector with this thing you pictured:
biggestsonicfan
Professional
5v at 7a? Is that really enough to run a Model2 board? That amperage seems low to me.
ItsBobDudes
Grand Master
True, that's why people usually seek out the NVS-4000 power supply.
I am in the same boat Virtua Fighter 2 Rev B. I see adapters to power over Jamma from ebay, but not sure what the move is. This harness is one that I already own.
I have a spare sun power supply I wanted to use. Will the 5v black amp up connector connected to a sun PSU through this harness suffice to power the board?
I have a spare sun power supply I wanted to use. Will the 5v black amp up connector connected to a sun PSU through this harness suffice to power the board?
So i would need a filter board with this wire too ?Your best bet might be to get a harness that can bring these 5v and ground lines to the filter board.
All of the controls, RGBS, and mono sound can be handled by the JAMMA connector with this thing you pictured:
ItsBobDudes
Grand Master
biggestsonicfan
Professional
@Krec9 Both that filter board and the shape of the main-board indicate that is a Model2b. VF2b runs on a Model2a board, which uses a different main board, a separate video board, and a different filter board. Can you take a picture of the ROM board so we can identify the game?
@Segafan1985 Theoretically, yes. The 2a would only use the two power connectors circled in green here on CN3 and CN12.
@Segafan1985 Theoretically, yes. The 2a would only use the two power connectors circled in green here on CN3 and CN12.
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@Krec9 Both that filter board and the shape of the main-board indicate that is a Model2b. VF2b runs on a Model2a board, which uses a different main board, a separate video board, and a different filter board. Can you take a picture of the ROM board so we can identify the game?
@Segafan1985 Theoretically, yes. The 2a would only use the two power connectors circled in green here on CN3 and CN12.
