How do I get +5 Volt power source, I'm a noob in this area, any advice?

[postalp123]

Hey guys, need some guidance.

I got a Druin board (Thanks Retro-active!) and in order to wire it up, it requires a 5-volt power source, this is where my ignorance kicks in.

I have an IPac-4 as well as a HAPPs 3" trackball, would either one of these have that Power Supply, or would I have to get it from the PC?

If I have to get the 5-volt from the PC, a few questions:

*What color wire is the 5-volt on the PC's drive connectors?

*Would I need to use the PC's drive connector ground or can I ground the Druin board elswhere (IPac-4??)?


BONUS QUESTION: LOL, sorry, In this review by "Dr. D" http://arcadecontrols.com/arcade_druin.shtml , he mentions that he "adjusted the key speed in Ikari Warriors to get one twist to turn the correct distance", how would I go about adjusting the key speed?

Thanks gents!
-P

[fatfingers]

If your IPAC-4 is already hooked up then it has a +5v input.  You should be able to use that same wire for the +5v for your Druin board.  If you want to use a different wire and need to get it from your computer, the red wire from the driver connectors is 5v.  I believe you can ground whereever you want, but you might want to read other replies about that.

[leapinlew]

Use a wall wart that has a 5v DC output. Cut off the end and use the 2 wires. Many times, people have tons of them laying around:

[postalp123]

Thanks for the reply fatty (and I mean that in the most respectful sense  ) I dont have my IPac-4 sitting here in front of me, but looking at this pic, I cant seem to find the 5 volt lead on it:



If you can locate it on there, let me know, thanks!

[Kaytrim]

One thing you will want to get is a multi meter.  You can use it to check the voltages on the power supply of your PC, continuity and other things depending on the complexity of the meter.  For your +5v supply you can use a drive power connector from the PC's power supply.  Here is the pin out of the connector in order.

Yellow     +12v
Black       12v Ground
Black       5v  Ground
Red         +5v

I wouldn't take too much power from a USB power source as they are normally limited to around 300 - 500 milli-amps of power draw, I don't remember the exact limit off hand.  An example of this is Groovy Game Gear's LED-Wiz, there is a limit of the amount of milli-amps you can draw without supplying +5v from an external source.  The drive power source will have plenty of amperage to draw from.

A lot of these simple questions can be answered buy using the forum search.  There is a link on this page and every forum page at the top just above the links to the various boards here.

Sorry I can't help you with your bonus question.

[postalp123]

Thanks Kay for the reply,

Funny you mentioned this, because I was actually under the desk with my multimeter between posts and came to the same conclusion (Red = 5 Volts).

Good stuff!

[JoyMonkey]

The pin header on the IPac has two +5v pins:

http://ultimarc.com/ipac2.html

[postalp123]

The pin header on the IPac has two +5v pins:

http://ultimarc.com/ipac2.html

Thats for an IPAC-2, you think that would matter?

[Scumgriever]

Yellow     +12v
Black       12v Ground
Black       5v  Ground
Red         +5v

Just as a side note.

This has always thrown me... Whay would they put the lower voltage on the red wire with the higher on the yellow.
I know its been that way for donkeys years but it just seems so counter intuitive.

[fatfingers]

Thanks for the reply fatty (and I mean that in the most respectful sense  ) I dont have my IPac-4 sitting here in front of me, but looking at this pic, I cant seem to find the 5 volt lead on it:



If you can locate it on there, let me know, thanks!

*sigh*  It seems you are correct and I'm an idiot!    I usually try not to post when I'm not certain, but I thought I was in this case.  It seems the IPAC/4 must get power from the PS2 connector.  I think that means you're back to the drive connector (red).