Powering 12VDC Monitor from PSU ?

MindBuster

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Jan 6, 2002
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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 :p )
 

Ultima99

Supreme [H]ardness
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Jul 31, 2004
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4,905
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

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Jun 10, 2005
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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

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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.
 

Tsumi

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Mar 18, 2010
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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

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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.
 
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