LCD monitor question

guitarbth · 5th September 2005

Okay, this is crazy. I found a brand new LCD monitor sitting next to the trash dump at my apartment complex. Only thing is...it's missing the power supply. It's a 12V DC, 3A rated power supply. I found one online that is 12V DC, 5A. Will this work? Will it be fine as long as its at least 3A or will the higher rated supply damage the monitor? The adapter size matches and everything. So if 5A will work then I'm set... What do you think?

Brandon

Improv · 6th September 2005

why not just order the proper PSU from the manufacturer? Surely it's got a label on it somewhere.

One has to wonder though.... that it may have been by the dumpster for a reason. Doesn't really need a visible gouge in the screen or anything like that to simply not function.

Good luck with it though.

guitarbth · 6th September 2005

Couldn't find any info on the manufacturer except that it's sold through CompUSA. I'm willing to pick up a power supply to give it a try. Reason being... it looks absolutely brand new.

Improv · 6th September 2005

have you tried finding the model on their website? I bet a call to 800-compusa would do the trick

dasbin · 6th September 2005

If the 12VDC 3A is really all it needs, 12VDC 5A will be fine. The amperage value is the maximum load the supply can handle continuously. It's not like a supply can try to force more amperage through a circuit than the circuit wants to take - physics don't work that way. Voltage is another story of course.

Keep in mind though that there are a few different ways of doing DC. It could be bipolar (which means it expects +12v and -12v on seperate lines... or maybe even +-6v!) though this is unlikely. If there are only two contacts on the supply plug then you will be fine with a regular single supply wallwart or whatever.
It may be expecting filtering and regulation though. You should get a regulated supply just to be safe, though this will be seriously expensive for 3A.

theblue1 · 6th September 2005

Yeah... I could see a scenario where the monitor failed and the owner put it out and threw the ps into his wall wart drawer. That's what happens around here. Well... now I have two wall wart drawers. RIght next to my weird, proprietary USB cable drawer...

guitarbth · 6th September 2005

Cool... so the one I've found should work... if the monitor works. They have a return policy so it's worth a try to me. Thanks for the help.

Brandon

5th September 2005	#1
guitarbth Gear maniac Joined: Apr 2004 Location: Nashville, TN Posts: 181 Thread Starter	LCD monitor question Okay, this is crazy. I found a brand new LCD monitor sitting next to the trash dump at my apartment complex. Only thing is...it's missing the power supply. It's a 12V DC, 3A rated power supply. I found one online that is 12V DC, 5A. Will this work? Will it be fine as long as its at least 3A or will the higher rated supply damage the monitor? The adapter size matches and everything. So if 5A will work then I'm set... What do you think? Brandon

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6th September 2005	#2
Improv Lives for gear Joined: Mar 2005 Location: Philadelphia, PA Posts: 1,365	why not just order the proper PSU from the manufacturer? Surely it's got a label on it somewhere. One has to wonder though.... that it may have been by the dumpster for a reason. Doesn't really need a visible gouge in the screen or anything like that to simply not function. Good luck with it though.

6th September 2005	#5
dasbin Gear addict Joined: Jun 2004 Location: Vancouver Posts: 421	If the 12VDC 3A is really all it needs, 12VDC 5A will be fine. The amperage value is the maximum load the supply can handle continuously. It's not like a supply can try to force more amperage through a circuit than the circuit wants to take - physics don't work that way. Voltage is another story of course. Keep in mind though that there are a few different ways of doing DC. It could be bipolar (which means it expects +12v and -12v on seperate lines... or maybe even +-6v!) though this is unlikely. If there are only two contacts on the supply plug then you will be fine with a regular single supply wallwart or whatever. It may be expecting filtering and regulation though. You should get a regulated supply just to be safe, though this will be seriously expensive for 3A.

6th September 2005	#6
theblue1 Gear Guru Joined: Mar 2005 Location: Long Beach, CA Posts: 15,095	Yeah... I could see a scenario where the monitor failed and the owner put it out and threw the ps into his wall wart drawer. That's what happens around here. Well... now I have two wall wart drawers. RIght next to my weird, proprietary USB cable drawer...