Millipede board testing.

[Hawk Daddy]

Whats a good way to test this boards, just send them off to somebody?  I plan on Turning the cabinet into a Track ball MAME machine, but would like to sell all the parts to somebody that could use them instead of just me who will just have them setting around.

Hawk

[Level42]

yeah you can send it to me so I can make a nice Millipide/Centipede combo of my Centipede cab

[fredster]

You can get a power supply, any type, and get the +5V off of it.  If you can get a harness for one, power up the board at the +5V.

Then get the Red, green, blue, ground and sync cables off and plug it into the monitor.  If the board comes up when you power it up, you can expand the testing by adding a +12V to it.

You find the manuals on line.  There are dozens of places you can download the pdf files for manuals.  Google search for the name of the game, and .pdf and Manual.  You will be surprised at what you find.

You can contact people on the RGVAC to help out too.

[Witchboard]

Cool.  If you're not hacking up the wiring harness, I could use it for my Millipede restoration.

[Hawk Daddy]

What is RGVAC, and you have a PM witch board.

Hawk

[horseboy]

What is RGVAC

Rec.Games.Video.Arcade.Collecting newsgroup

[RichSorr]

You can get a power supply, any type, and get the +5V off of it.  If you can get a harness for one, power up the board at the +5V.

Then get the Red, green, blue, ground and sync cables off and plug it into the monitor.  If the board comes up when you power it up, you can expand the testing by adding a +12V to it.

You find the manuals on line.  There are dozens of places you can download the pdf files for manuals.  Google search for the name of the game, and .pdf and Manual.  You will be surprised at what you find.

You can contact people on the RGVAC to help out too.

if you have an old computer laying around, you can use the power supply from that, it will supply +5vdc and +12vdc.  if not, you can probably find one for 5 bucks, or even free.

[modessitt]

If he has the stuff for his MAME already, he should have a power supply available (for his Comp).  Unless he's got an arcade monitor he's using as well, he'd need speakers hooked up to it as well to see if it makes sounds, as well as a button to start a game to test game function.

Probably easier to just sell it as "untested", i.e. might work, might not.

[Rocky]

If he has the stuff for his MAME already, he should have a power supply available (for his Comp).  Unless he's got an arcade monitor he's using as well, he'd need speakers hooked up to it as well to see if it makes sounds, as well as a button to start a game to test game function.

Probably easier to just sell it as "untested", i.e. might work, might not.

He'll need an audio amp if he wants to test the audio, it's unamplified on the board.


Honestly, testing arcade boards without the right equipment or experience is pretty tricky.  If you are really going to do this, take your time and double check your connections.  One slip with a contact and your board it toast.

[seinologist]

You'll need to run two lines from +12v. One to the 10.3v test point for the reset circuit, and another to the +15v test point for the color circuit.

If you have a Centipede jamma adapter you can make a Centipede to Millipede adapter easily like I have.
You can then run 2 jumper wires to +10.3v & +15v.

[Hawk Daddy]

I'm going to go and get that Zaxxon today, and then I'm going to take the monitor out of it and test that Millipede board, after I figure out how to wire it up that is.

Hawk

[modessitt]

Well, since Millipede uses a +/-22V as an input and two connectors to the board, and Zaxxon power supplies do not provide the +/-22V and use three connectors, you're gonna have quite a fun time wiring this up.  Unless you plan to just gut the Zaxxon and MAME it, don't go hacking up any wiring you're gonna need later for something else.....

My guess is a +5V wire and ground, with the video signals wired up (and probably the RESET ), will maybe get the game to boot up on screen, but you will be unable to test game functions (no trackball inputs) or maybe not even sounds.