Blast City Club

[grendelrt]

grendelrt do you have the 001 loom with RCA's? The other end of the rcas should plug into the speaker molex in place of the jamma speaker plug. If so, you'll need to figure out the pinout of the molex or just wire that plug you got to some female RCAs so that your MVS/JAMMA converter plugs into the RCA's on your loom.

Yeah I have the 001 Loom. The rcas plug into that yellow connector I pictured, the mono does as well, you just switch depending on what you are using. So I could wire those 4 independent wires off the harness to female rca plugs? My 2 slot should be amplified, so if I use the RCAs does that bypass the internal amplifier in the blast city PSU?

 

[skate323k137]

Yeah I have the 001 Loom. The rcas plug into that yellow connector I pictured, the mono does as well, you just switch depending on what you are using. So I could wire those 4 independent wires off the harness to female rca plugs? The other thing I wasnt sure about is if I would end up double amping the single?

As long as you unplug the jamma one, and plug in the RCA one, yes, you could wire those 4 independent wires to female RCA jacks and plug them in your 001 loom unless it's already an amplified signal which it might be.

Since that stereo signal might already be amplified on the adapter, you're not going to want to plug it straight into the RCA jacks unless you confirm that it's a line level (unamped) signal. Do you have a couple cheap old speakers laying around? If so you can try wiring that harness to the speakers directly to see if it's already an amplified signal. If it is amplified you'd need to attenuate it before sending it through the blast loom on the RCAs. I used to use something like this to turn amplified audio back down to line level: http://www.newegg.com/Product/Produ...86104&ef_id=ULlzFAAAWK0H72qK:20140516010433:s

 

[kuze]

You're probably going to need to check the pinout of your extra wire harness in the CP itself.

Any tips on where to start or associated pinouts? It has a 2p12b harness on the CP which seems to be wired up correctly.

Would I need to get underneath the CP? I read something about there being connections under the panel, but it seems like that would require basically a full disassembly.

 

[skate323k137]

Can you take a pic inside your CP? You should have 3 looms; 1 each for p1 and p2 and a 3rd loom with just buttons 4-6 for both 1 and 2p on it.

 

[kuze]

Can you take a pic inside your CP? You should have 3 looms; 1 each for p1 and p2 and a 3rd loom with just buttons 4-6 for both 1 and 2p on it.

Sure! Let me know if pics of anything else would be helpful.



Any ideas?

 

[Chempop]

Looks to be wired up for 5 button jamma, that's my guess since you aren't getting one of the buttons. You might need one of these:

 

[kuze]

Looks to be wired up for 5 button jamma, that's my guess since you aren't getting one of the buttons. You might need one of these:

Thanks. I thought it might be something like that. My harness looks identical to the one you pictured though. It even says 2L12B on it. Would there be somewhere else it could be miswired?

If I don't get it figured out in the next few days I'll borrow a buddy's blast IO -> cps2 kick harness just to rule out the one from Lemony, but I'm confident the one he sold me is fine.

 

[skate323k137]

Looks to me like he just needs the correct extra button loom inside the CP. The one in there is clearly missing wires for a 2l12b setup.

Kuze, the plug closest to your volume knob is where the kicks are. You only have a few wires on that loom and it needs all 8. Lemony should be able to straighten you out. The backside of it and the kick harness in your pcb bay should be fine.

 

[Lemony Vengeance]

Windy has extra button harnesses on pre order! I'm making them, so get them from Windy!

 

[kuze]

Looks to me like he just needs the correct extra button loom inside the CP. The one in there is clearly missing wires for a 2l12b setup.

Kuze, the plug closest to your volume knob is where the kicks are. You only have a few wires on that loom and it needs all 8. Lemony should be able to straighten you out. The backside of it and the kick harness in your pcb bay should be fine.

OK so why aren't there 8 wires on the extra button connector that chempop linked?

 

[skate323k137]

the one he linked, if i'm not mistaken, routes 4 and 5 to JAMMA instead of the extra button harness.

Basically blasts are wired for both JAMMA+ with buttons 1-5 available on the 1 and 2p looms, but also 4-6 available on the extra button loom if you need them to go to a CPS2 kick harness instead of the jamma edge.

Mine has all 8 wires that route properly to the kick harness. If this pic isn't enough for you I could take a couple more or a short video when I have time. See the few extra wires to the right? those are buttons 4 and 5 to the jamma harness; I don't use them.

edit, this might help if you're still confused. I -think- the blast uses this same pinout, but the concept is the same. You can wire buttons 4 and 5 to two different places. One will end up going to jamma, the other to a kick harness.

 

[Lemony Vengeance]

This extra button pinout is incorrect. When I get home ill post the correct pinout.

 

[Chempop]

Ooops my mistake. I wasn't thinking clearly (have no idea what I'm talking about).

So try this, get rid of that thing I showed, just disconnect it and by pass it altogether. What it's doing is probably giving you the jamma 4+5 buttons over your kick row, not what you want. If you try plugging the kick row button loom directly you should get the CPS2 4,5,6.

 

[kuze]

Ooops my mistake. I wasn't thinking clearly (have no idea what I'm talking about).

So try this, get rid of that thing I showed, just disconnect it and by pass it altogether. What it's doing is probably giving you the jamma 4+5 buttons over your kick row, not what you want. If you try plugging the kick row button loom directly you should get the CPS2 4,5,6.

Dude you rock. That did the trick. All kick buttons are registered correctly now. Problem solved

I figured it was something stupid easy like that. Thanks for the help guys. Hopefully this helps someone else in the future.

 

[Chempop]

Awesome!

 

[Teddy KGB]

Or you can get the FrancoB 4/5 button link kit. It's essentially an inline adapter that plugs into your CP loom to link button inputs four and five between the 12 and 10 pin AMP UP connectors. Gives full four/five button support for MVS/Atomiswave etc from the JAMMA edge as well as 6 button support for CPS2/3 without having to plug/unplug controls when changing systems.

Hit him up, I love mine.

 

[codecrank]

also handy when using 6 buttons with the sega i/o

 

[daskrabs]

Can anyone recommend touch-up paint for the body of a Blast? Specifically the area near the speaker grills?

 

[grendelrt]

Can anyone recommend touch-up paint for the body of a Blast? Specifically the area near the speaker grills?

I was interest in this as well, I have some yellow spots that don't look like yellowing right beside my left grill. I thought they were chips but I can't feel them either.

 

[urmyokazu]

I want to give my control panel a nice scrub down to get rid of some of the gunk in it. Saw the following disassembly guide at AO:

http://forum.arcadeotaku.com/viewtopic.php?f=3&t=15049#p194650

The poster urges not removing the bottom of the control panel without first removing the monitor due to the lower CP supporting the monitor bracket. Does this really mean I can't take the CP off to clean it without removing the monitor? Wasn't planning on messing with the monitor just yet so I was hoping there was a second opinions on this?

 

[skate323k137]

I just took off the top half of my CP, pulled out the looms, scrubbed everything down and put it back together. I would be inclined to trust that information about the bottom half of the CP.

Here's a gallery showing my initial scrubbing. I'm not going to completely disassemble the cab until I move somewhere with a basement or garage.

http://imgur.com/gallery/wIbRF

 

[urmyokazu]

That's what I was thinking of doing after reading the information about the bottom half. I was just worried I wouldn't be able to get a deep cleaning but it definitely seems to have worked out well for you.

Well, time for me to get started!

 

[shadows]

Just put the bolts back in. You wont lose them, and if they are actually supporting the monitor somehow you wont have to worry about it.

 

[urmyokazu]

I ended up just cleaning the control panel with the bottom still bolted on. Results:





More pics: http://imgur.com/a/UXJNj

 

[skate323k137]

Looks a lot better, well done.