Wiring a coin mech to a computer PSU

[eggedd2k]

i've got a sentinel coin mech - 12v. Would it be possible to power this from a computer psu? how would you ensure you get 12v?

[pmc]

The yellow wire on a PC PSU is +12V. I'm not sure if you need to know more than that... someone here will be able to tell you.

-pmc

[eggedd2k]

how do you physically wire it to the 12v on the computer's PSU? do you have to take the case off the PSU to do this?

[agfisher]

You should be ablr to just tap off of the Yellow (+12v) and the Black (Ground) from the Hard Drive power connectors.

Adam
Boston, MA

[eggedd2k]

thanks. seems easy enough. what's the best way of attaching the wires?

[Franco]

You could use some insulated disconeects like these that i used:-



Also, this site has some info on wiring the sentinal mech, including dip switch settings.

http://homepage.ntlworld.com/chris.nightingale1/arcades/cbmain.htm

[pmc]

thanks. seems easy enough. what's the best way of attaching the wires?

I used a molex hard drive cable. Plug into the PSU harness and then cut the connector off the other end. Extend the yellow and the black wire next to it (pin 1 and 2) to your destination and hook up with quick-disconnects as mentioned. Tape off, remove, or cap wires 3 and 4.

-pmc

[agfisher]

thanks. seems easy enough. what's the best way of attaching the wires?

I used a molex hard drive cable. Plug into the PSU harness and then cut the connector off the other end. Extend the yellow and the black wire next to it (pin 1 and 2) to your destination and hook up with quick-disconnects as mentioned. Tape off, remove, or cap wires 3 and 4.

-pmc

I do something like this but I cut all four wires and extend then to a wiring bus. Then, if i need  +12, +5 or Ground in the future, I just tap off of the bus. You can then use the quick disconnects between the bus and your application.

Adam
Boston, MA

[RayB]

**WARNING**
Use a multimeter first to determine which wire is 12v. Not all manufacturers use the same color codes. Most do, but there ARE some that reverse it. Though I suppose it won't hurt anything if you accidentally apply 5v instead of 12....

[Stingray]

what's the best way of attaching the wires?

I'm not sure it's a really spectacular idea for you to be poking around inside an arcade machine. If you see something that looks like a suction cup, don't touch.

-S

[tivogre]

I made a cable to tap off of a hard drive power plug.

I started with a HD power splitter cable.  One branch, I removed the molex plug and soldered on a length of wire to the 12v and GND wires.

To the other end of the extension wire, I soldered 6 pairs of 12v / GND wires with QD terminals: