Powering 12VDC Monitor from PSU ?

[MindBuster]

So I found this old Viewsonic VG512s 15" (1024x768) monitor that runs on 12V and I want to run it from a computer PSU, that's doable isnt it ?

The monitor says 12VDC 3Amps which any PSU can deliver on the 12V rail, so it's just tapping the power from a Molex, Yellow 12V going to the mid pin of the Monitor DC jack, and a black wire from the molex going to the shell/shield of the Monitor DC jack, and it should run fine...

...shouldnt it ?

(just making sure )

 

[Ultima99]

I am not an electrician but 12VDC is 12VDC as long as your PSU is up to the task.

You could power the monitor off a battery of sufficient specs.

 

[Arcygenical]

That is correct!
Though next to the 12v In, there may be a diagram outlining if the tip or shield is positive. Also, the adaptor will have this info.

 

[Tsumi]

Make sure you know where the positive and the negative is on the dc jack. Usually the positive is the inner one, but sometimes it can be reversed.

 

[Mohonri]

Yup, you'll be fine, as long as you don't short anything

 

[MindBuster]

Thanks, I'm gonna give it a try

 

[rflcptr]

A multimeter is your friend.

 

[MindBuster]

A multimeter is your friend.

I know, been wanting one for years, and actually got one a few month ago, I'll find the +

 

[Tsumi]

Multimeter won't tell you what's positive and negative on the monitor though. But if you had the original power adapter, you could figure it out.

 

[MindBuster]

I dont have the original powerbrick, but I have the monitor taken apart, so should be easy to locate positive, negative would be connected to alot of points and cover a big area of the pcb, positive probably only one point.

 

[stormy1]

put a 3a fuse in the line going to the monitor.