Jump to content
Due to a large amount of spamers, accounts will now have to be approved by the Admins so please be patient. ×
IGNORED

Arcade Power Supply


Crafty

Recommended Posts

Well after finally finishing the cocktail cabinet, I am now on to my last project...

 

My 100cm LAI showcase cabinet.

 

This will have my new Neo single slot and 100 in 1 cartridge put into it.

 

Now this is my first arcade machine that I'm getting going from scratch. (The cocktail has a 48 in 1 with a pc power supply)

 

Does anyone have a good link on how to wire up an arcade power supply. I have 2 in the shed which may or may not work also, so how does one tell this also.

 

All help appreciated.

 

Cheers

Crafty

Link to comment
Share on other sites

Crafty, I don't have any diagrams but I went through this recently after having to scratch-wire a cabinet too.

 

The 'layout' of the terminals can be different across different power supplies, so it might be best if you can take a photo of the front of it.

 

Aside from that, its very easy to test & wire up.

 

To test, just set your multimeter to DC and measure the +12 and +5v are within range of what you expect (+ lead on the +12/+5v and - lead on the GND).

 

There should be two "AC" pins and a pin with an 'earth' symbol (this is distinct from the other two GND pins near the +12/+5v). Make sure your power supply is switched to expected 240v, and wire the AC power lead to the two "AC" pins and the earth (green?) lead of your power cable to the earth pin.

 

Now regarding which pins of the JAMMA harness the +5, +12, and -5v go to, you should look up the thread on Jamma pinout stickers... that will make it a lot easier.

Link to comment
Share on other sites

I think I will buy a new power supply first then move on from there. When it arrives I will post a couple of photos with my questions. Cheers.

 

The cabinet already powers up as in fan and monitor - all 240V- so it's just a power supply away from going (I Hope)

 

PS I think the 2 power supplies I have are dead...as i did wire them up to a 240V lead but did not get anything from the DC connectors so for the sake of $40 for a new power supply... It removes one area of doubt.:D

Link to comment
Share on other sites

I think I will buy a new power supply first then move on from there. When it arrives I will post a couple of photos with my questions. Cheers.

 

The cabinet already powers up as in fan and monitor - all 240V- so it's just a power supply away from going (I Hope)

 

PS I think the 2 power supplies I have are dead...as i did wire them up to a 240V lead but did not get anything from the DC connectors so for the sake of $40 for a new power supply... It removes one area of doubt.:D

 

A lot of these power supplies require a load on the output before they will work. I use a 12V automotive globe to do this. Also, double check that the supply is set for 240V before powering them up.

 

Regards,

 

Johns-Arcade.

Link to comment
Share on other sites

Ok guys time for stupid questions...

 

1/ On an arcade power supply does it matter which terminal is which for the AC connection?? Obviously earth is earth but what about active and neutral (pic 1)

 

2/ Does the power supply wire direct to my distribution box (pic 3) like everything else?

 

3/ What the hell is this and do I need it?? (pic 5)

 

4/ Is DC Com - DC earth in pic 1 ?

Link to comment
Share on other sites

Ok guys time for stupid questions...

 

1/ On an arcade power supply does it matter which terminal is which for the AC connection?? Obviously earth is earth but what about active and neutral (pic 1)

 

2/ Does the power supply wire direct to my distribution box (pic 3) like everything else?

 

3/ What the hell is this and do I need it?? (pic 5)

 

4/ Is DC Com - DC earth in pic 1 ?

 

 

1, No, connect your active and neutral to either terminal (there is no polarity).

 

2, Yes, if your power supply is set for 240V, you connect it to this distribution box.

 

3, Not sure to be honest, can you post a closer picture?

 

4, DC common is the return for your output voltages (+5V, +12V, -5V) Earth is an AC term and this is where you connect the AC earth.

 

Regards,

 

Johns-Arcade.

Link to comment
Share on other sites

Thanks john, I think it's beginning to make sense...

 

Another question for you in regards to the DC com then.

 

DC ends up being in a loop so to speak then like when you wire up arcade buttons?

 

The cabinet has all the wiring in place just disconnected so I'm trying to get it right before plugging in the Neo board.:D

 

as for the "what the hell is it" I will take closer photo's. It did not come with this cab though it was in the box with the power supplies and other bits I got.

Link to comment
Share on other sites

Thanks john, I think it's beginning to make sense...

 

Another question for you in regards to the DC com then.

 

DC ends up being in a loop so to speak then like when you wire up arcade buttons?

 

The cabinet has all the wiring in place just disconnected so I'm trying to get it right before plugging in the Neo board.:D

 

as for the "what the hell is it" I will take closer photo's. It did not come with this cab though it was in the box with the power supplies and other bits I got.

 

Yes, that's correct. Your DC common acts as a return for your power and inputs (buttons, joysticks, etc).

 

Regards,

 

Johns-Arcade.

Link to comment
Share on other sites

Pic 5 looks like a zap buster - restarts the machine by power cycling if you try and use a "clicker" piezo zapper doodad.

 

So no, you don't need it, unless disciplin is an issue at your place...

 

Cheers

Jacob

 

That makes sense, hence the single green wire which would be connected to ground.

 

Regards,

 

Johns-Arcade.

Link to comment
Share on other sites

Pic 5 looks like a stepdown transformer to me? 240vAC goes in, 110vAC comes out?

 

 

On closer inspection the board has LAI power reset written on it? I got a couple so wondering if they were needed in this cabinet???

 

What they are used for at all??

 

While in in the shed taking photos Jacob gets the answer (i Think)

 

So I don't need them although with 3 kids discipline is always an issue :)

Link to comment
Share on other sites

On closer inspection the board has LAI power reset written on it? I got a couple so wondering if they were needed in this cabinet???

 

What they are used for at all??

 

While in in the shed taking photos Jacob gets the answer (i Think)

 

So I don't need them although with 3 kids discipline is always an issue :)

 

As Askjacob pointed out, these would be used to reset the power to the game if a spike was detected (Via a piezo zapper, etc). It was common for kids to zap games with piezo zappers which would put up credits on the game. When I was a kid just simple static generated by rubbing your feet along the carpet at the local arcade would quite often work. I'm guessing the small IC is a comparator or timer (555)? of some sort which would disable the relay on the other side of the transformer.

 

Regards,

 

Johns-Arcade.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...