Volts and Amps question.

Blaine

Hinako's Cook
Joined
Jul 16, 2001
Posts
3,113
Okay. I found a cheap pair of Gamecube LCD screens. One will remain intact the other will be canabalized for a dash LCD screen.

The second one didn't come with any power cables. It also has a slightly different end on it's power cord so I can't use the first screen's cables.

The first screen has a car adapter which says it outputs 12v dc 3.25A.

So I figured the other screen is probably same deal. Scrounging I found a cigarette lighter adapter with an appropriate connector (it was very light so I assumed it wasn't a power inverter, just an adapter) and after hooking it and my gamecube up in the car the screen worked.

Now-

I'm trying to add a 9 pin RGB cable to the screen. Which means I have to identify what wires are what on the screen. (Ground, Volt, etc)

So I need to power the screen and I don't want to have to sit in my car.

The only wall wart I found was 12v dc 780mA.

I admit OPENLY I'm still neophyte. Is Amperage a value you should not exceed (such as running 120v into a 12v screen) or is it a value you may not exceed (such as trying to run 600w worth of hardware on a 500w powersupply. While running 200w worth of hardware on a 700w powersupply is perfectly fine)?

For obvious reasons I'd like to know before trying (and for other reasons, such as I'll have to cut off another wart's connector because the 12v dc one I have won't fit).

I thank you for your time.
 

ttooddddyy

PNG FTW,
Joined
Nov 29, 2001
Posts
8,335
Blaine said:
is it a value you may not exceed (such as trying to run 600w worth of hardware on a 500w powersupply. While running 200w worth of hardware on a 700w powersupply is perfectly fine)?

Thats it in a nutshell, ensure the output voltage is correct, 12 volts (maybe a little higher, upto to 13 or 14 when the engine is running and the alternater/charging circuit is operating)

The max current rating is exactly that, if it is exceeded things get warm, fuses may start blowing and its an indication the equipment may be faulty causing the excessive current flow.
 

Dean

Choi's Clawmaker
Joined
Jan 26, 2003
Posts
4,821
Good luck with it. And I'll be most interested if you figure out how to get RGB lines input into it.
 
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