Question about Cornea CT 1810 18.1" Flat Panel LCD Monitor

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Power supply lost power supply, I know I need to get a wall wart but I don't know is tip negative or positive? thanks.

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Re: power supply

At the adaptor input on the device there is a small diagram that shows the polarity of the tip and the shield of the connector. If it is not there, check the information plate on the back of unit. It has the model/serail number on it as well as the power consumption and build date.

Posted on Jun 25, 2007

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Re: power supply - Cornea CT 1810 18.1" Flat Panel LCD Monitor Computer Monitors

Bs more specific with your problem.

Posted on Jun 24, 2007

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Need one 12v 2500mah power cord for flat screen monitor xenon is the brand name and is prob kinda old cheap if possible

I had a similar problem. Here is what I did:

I went to the computer store and I did purchased a generic Laptop power supply that provides 13 Volts @ 2Ah. y display was working fine with it.

You may be able to take the display information (Voltage, amperage, connector size, positive and negative information) and get assistance from a computer store (maybe radio shack, circuit cit... oops, they closed stores, never mind that one. Best buy or any electronic store in your area).

If that doesn't work or you can't get a similar power supply, you can check in e-bay and get one similar like this one:

but you need to be sure about the positive and negative connector.

Good luck.

Sep 08, 2009 | Xenon XEN 1510T 15.1" Flat Panel LCD...

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I need to know if the center pin is positive or negative on the power plug on the back of the pavilion f1503 LCD monitor.

I assume that you need a new power supply (PS). The old power supply should have an indicator on it depicting the pin-out. If it doesn't, you can break open the old PS and look for the capacitor. One end will be market +++ and the other pin will be marked ---. Trace the wire of use a conductivity meter to determine which wire is + and which is -.

Most of the time (but not always), the center is + and the outside is -.

Jul 31, 2009 | Computer Monitors

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Viewsonic VA712b lost Power Supply need voltage & current

davsmith00, Did you look on rear of VA712B where the power plug enters the power JACK connector? Maybe it will only tell you who is positive and who is negative (gnd) some monitors state what is the required V & I for them on the rear labels somewhere. This will teach you not to lose your supply. Did the dog hide it under the bed? Good luck finding a replacement. There are sources on web that specialize in drop-in replacement IN-LINE switch-mode-power-supply Bricks. You can also try and and to see if they have something. I'm louie12fix on fixya or lmistyrel@ Bye for now.

May 05, 2009 | ViewSonic VA712B 17" Flat Panel LCD...

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What power supply required for my ECS Elite EZX15G. 12v 3A ok but is it + or - tip? Thanks Roger

Normally (90%) it is center positive. The larger outside is effectively 'Ground' and not only connects the inside socket securely to the motherboard, but also provides massive support to keep it aligned and attached by connecting to the most massive copper parts of the PC Mainboard inside. In most cases (pun intended) there is a diagram of a C with a o inside somewhere near to the connector on the PC which tells you which is definitely which. AC doesn't matter, so if its 12V 3 A ACV it makes no difference which is which... and in those same 90% of cases, there is a Diode on the Positive side which only allows POSITIVE (+) volts to flow in IF the other side is more NEGATIVE (-) so no worries... it will not smoke ;-)

Hope that helps

Apr 08, 2009 | Computer Monitors

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I need to know the polarity of my Hp Pavilion F1703 monitor as I have just brought a new power adaptor and before I connect up to the mains it says make sure you insert the adaptor the correct way round...

If the monitor does not have a symbol (similar to the letter 'C' with a dot in the middle), the cheapest digital multimeter can be used on the 'diode' or 'continuity' setting to check the input.
If the meter reads between 600 and 900, you are measuring the forward voltage drop of a protective diode.  Any other reading will mean that the positive probe of the meter is on the positive part of the connector.     i.e. If you are placing the positive meter lead on the center pin and the negative on the shell and it reads 600-900, then the power supply needs to have the negative applied to the center pin and the positive on the shell. If the negative lead is held on the center pin and the positive on the shell and the reading is 600-900 then the center pin is the positive input and the shell the negative.
The readings shown above mean that you are measuring the forward voltage drop of a diode meant to protect the unit against improper polarization and it will probably either die or ruin the adaptor if misapplying the polarity.
You can buy such a meter at electronics or auto parts stores for under $20 US.

Jan 11, 2009 | HP Pavilion F1703 17" LCD Monitor

1 Answer

Vp230mb power supply

Follow the ribbon cable from the pwr supply down to the motherboard. Near where it connects there are two "U" shaped wire loop test points. One is positive, one negative, 12V at 7.5amps.

Solder onto these. There is one other "S" wire which is for voltage sense. Don't know what to do with that one.

Inspite of all the wires in the ribbon, half are + and half are minus 12V, but it really needs the 7.5Amps.

Oct 11, 2008 | ViewSonic VP230mb 23.1" LCD Monitor

2 Answers

Need to know the polarity

you can set positive and negative of the universal power adapter 110v to 220v.

May 05, 2008 | Scanport 821S 17" LCD Display Monitor

1 Answer

Power supply pings distributions planar d6015tm

The information comes on the same manual of the planar monitor d5015TM (see as medical monitor)

Sep 12, 2007 | Planar VitalScreen D6015TM (White) 15 in....

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