Well i did some fooling around with an LED and I found out that I have a green and purple wire that both have power but the purple makes the LED brighter. Is all I have to do now hook up a black and purple wire to the amp? Are there any other wires I need to fuse together, maybe a switch or something? Sorry for asking so many questions, but I really want to put this in my dorm room.



Mark

 

Some power supplies will not turn on without a load. You may want to hook up a hard drive or 2 and see if it will turn on. Whatever you do don't connect 2 hot wires together. All you need to do is take a drive connector and use the - and the +12v there. Here's a pic:

http://members.shaw.ca/nrfarley/pics/Image002.jpg

The yellow wire is +12v. It's the first from the left. Your supply may have a different color wire but the first from the left will also be +12v. The red wire on the other end is +5v.

 

there are two wires that you have to short together to get it to come on, if you look at the wiring diagram for the power supply you can probable figure it out. This tells the power supply that it is plugged in.

 

Or you could just use the switch.

 

The battery chargers defiantly don't work, well they work...not very well tho

I know from experience (I only tried it cause I had to switch my car stereo from one car to the other)

 

I got the fan to run and for the red wire to have power. x7x7 was right I had to hook up a load. My problem is that all the wires have power and the grounds work but my amp won't turn on. I'm using a Kenwood KAC 729S. The amp won't even light up, I checked all the connections with my LED and its getting power and the ground is fine, I also checked the wire from the power to the remote turn on and that is working fine. Is there anything else I need to do? Everything is getting power and the fan is running but my amp isn't turning on?





Mark

 

Man is this turning into a project!!!!!! I found out that the yellow is the 12v power and the red is the 5v. So i hooked the yellow and black up to a car neon light and the thing worked fine. I hooked the yellow and back to the amp and the fan on the power supply just dies. The same thing everytime I do it, once I hook it up to the amp the power supply shuts off. Does this mean that it won't work with me? Is my amp draining the power supply and causing it to shut off? Any idea's or suggestions would appreciated b/c now i'm really stumped!



thanks,
Mark

 

umm....ya this thread ended up being quite a discussion...it was taking to long and im an impatient guy so i just went and bought a DJ amp off ebay...

be a little safer for not only me but my subs as well..

someone probably could make a lot of money selling a device which converts the ac to 12 volt dc and from there u can just throw in a fuse or something to power your equipment...basically a way to simulate a battery with ac

 

I was really sick all yesterday so I wasn't able to reply but...

Do you have a short piece of wire running from the + 12 on the amp to the remote turn on lead? This will turn the amp on when the power supply turns on. If you do have it hooked up like that and it's still not turning on then I'd assume that the load of the amp at idle is too low to run the power supply. Try hooking up another load just so the power supply will turn on (a hard drive or 2, maybe your neon light if it doesn't draw too much current). Then hook up the amp.

BTW, a few years ago when I was experimenting with the same thing I used that same amp. It worked fine but I wasn't able to turn the volume up very much because the power supply couldn't supply enough current.

 

That's what a 12v power supply is.

 

I have the hard drives hooked and and I ran the wire from the +12 to the remote turn on still nothing, I even checked the connections 5 times. I think my power supply just doesn't have enough power to turn on the amp. When I hook the wires up to the amp the fan on the power supply doesn't even turn. I may just go to circuit city and buy a cheap Profile amp and see if that works.




Mark

 

Look at the sticker on the power supply. There should be a rating for the +12v line in "A" (amps) what is it? Must be pretty damn low if it's not able to turn on the amp. I'm not really too sure how much current it takes to turn an amp on. I don't think it would be that much.

 

Well I did it!!!! I needed to hook up 1 more drive and it worked!! I have to thank x7x7 for all his help in this endeavor. Once i hooked up a floppy drive and the hard drive together the amp turned on. I connected the RCA's and I had a car system in the house. Let me tell you this thing is LOUD! I need to have the amp turned down almost all the way or else the bass overrides everything. Thanks alot for your help, I was stumped there for a bit



Mark

Just noticed this was my brothers name, thanks again---Marky82

EDIT: Just to reiterate, that was Marky82 who didn't hit the "signout" button and posted under my name