Hi everyone,new to this forum and i have to say of the many forums i belong to im glad i found this one. I have an 05' Doosan/Daewoo 225Lcv excavator and i hate being without some tunes.The machine is 24 volt and radio hasn't worked since i've had the machine(4mos.).Decided to put an aftermarket radio in itand before i hook up radio let me just put a meter on it to make sure i've got 12 volts going to radio,well its 24.Old radio was 12 volt according to the parts manual that i got with the machine.There are 2 converter boxes under the seat with a bunch of other stuff,a 24 volt 20/30A relay, also a switch along side rght arm rest that is defined in book as an interrupteur.At a loss as to where to start trying to find where the problem is,as im not good with electrical diagnostics.Can anyone shed some light as where to start with a process of elimination system.Sorry for the long post:beatsme. Tim
Does your machine have the 12v cigar lighter in it? I ran a Daewoo 130LC-V a few years back and the radio pooped out. I ended up pulling the cigar lighter, running a power wire off the spade plug on it and to the radio for power. I also wired the ACC on the radio to it, so the radio never shut off, but it worked. Hope that helps. I am by no means an electrical engineer.
Yes it does(cigar lighter) and there is 12v coming out of that,i was thinking of that but i was a little concerned if one of the converter boxes shorted out.If it just quit thats one thing,but if it shorted out i like to find out why and fix it.Seems the converter boxes are in series. 1o has power coming out @12v but the other one i test has nothing and i dont know if im testing the right wires.Its driving me nutz. Thanks for the help,i guess i could resort to that cigar lighter . Tim
Radio All you need is a from a radioshack or other store that carrie 24V relay that will reduce to a 12V power and then hook uo your radio
Buy an after market 24/12 converter. Be sure to wire it so that the ignition side is powered only when the key is on. There will be instructions with the converter. There should be a 12 volt battery terminal for the radio memory. Do not wire the radio into one battery on the unit like some people do.
Converter. Hello. You say "Shorted out", what do you mean? A short is a low resistance that will cause excess current to flow. Is this what you mean? There are indeed 2 converters, a low current and a high current, they are NOT connected in series. A cable runs from one to the other. Normally the low current unit stays on as long as the "ignition" switch is on. The high current unit kicks in and the low current unit drops out when a sudden large demand is presented, like the cigar lighter. The low current unit can provide 7 amps constant. The high current unit can provide up to 35 amps, but only for a short time, perhaps 5 minutes. This scheme is quite common. Remember, the 12 volt circuit is only intended to provide a maximum of 7 amps constant, connecting a powerful radio that draws much over 7 amps, or perhaps a 2 way radio and the broadcast radio may overtax the system. And, the electrical system is not all that massive, I am thinking a 60 amp alternator.