Dual power source boombox (disregard, wired it and it works)
hello guys, this is my 2nd post but still finishing out the first project I'm on.
I'm almost done with my boombox but am still working through the wiring.
I have a 12v psu and a 12v 9ah battery.
the box shares the negative side of wiring for everything inside and the positive side of both power sources go into an on/off/on (SPDT) switch.
To retain the memory on the car cd player, I will connect this to the battery so it will be fine.
My question now though is, will there be any issue when I switch the box to pull power from the PSU being that the memory wire is connected to the battery still, but the other 12+ wires into the stereo will be taking power from the PSU?
I'd hate to short it out due to this oversight..
I'm wondering if it will be fine as the 12v memory wire is sort of it's' own circuit within the CD player? however . . I don't know for sure so I could use some help.. I'm hoping to finish wiring it tonight if possible.. however if I don't have an answer by then, I'll most likely just run it off battery for the time being and charge the battery with a tender as I planned to do anyway.. I'll just not use the PSU side of things yet.
Thanks and sorry for the run on, I'm just about to head out for the day but wanted to get this out before I didn't have to time to post it.
[/URL][/IMG]
[/URL][/IMG]
hello guys, this is my 2nd post but still finishing out the first project I'm on.
I'm almost done with my boombox but am still working through the wiring.
I have a 12v psu and a 12v 9ah battery.
the box shares the negative side of wiring for everything inside and the positive side of both power sources go into an on/off/on (SPDT) switch.
To retain the memory on the car cd player, I will connect this to the battery so it will be fine.
My question now though is, will there be any issue when I switch the box to pull power from the PSU being that the memory wire is connected to the battery still, but the other 12+ wires into the stereo will be taking power from the PSU?
I'd hate to short it out due to this oversight..
I'm wondering if it will be fine as the 12v memory wire is sort of it's' own circuit within the CD player? however . . I don't know for sure so I could use some help.. I'm hoping to finish wiring it tonight if possible.. however if I don't have an answer by then, I'll most likely just run it off battery for the time being and charge the battery with a tender as I planned to do anyway.. I'll just not use the PSU side of things yet.
Thanks and sorry for the run on, I'm just about to head out for the day but wanted to get this out before I didn't have to time to post it.


Last edited: