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Solve : lcd monitor power supply? |
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Answer» Can you use any AC adapter for an lcd monitor? I bought a monitor and it was tested before shipped and they said worked fine. However I did not know it did not come with the power supply. And it does not take the regular 3 prong supply, so I tried to hook it up with a regular 12v adapter, and it powers on, then the screen comes on for about 3 seconds, and then goes blank. But the power light stays green and on? The 12v adapter has the following specs: Quote Output: DC 12v-5A thats the problem. 300mA is a far cry from 5A. your monitor is not being supplied with enough amperage, assuming the figures you gave are correct.Actually, 300 ma is LESS than 1 amp. As far as matching your needs, just remember Voltage has to be an exact match. A 12V DC device needs a 12V DC adapter. And for Amperage (the amount of power your device uses) the adapter you order has to give AT LEAST the amount of Amps your device draws. If your device states it is 12V 1A, (or any number below 1A, like the ma's (think MG to GB) a 1A adapter or higher can handle that load. The higher amperage (amp) power supply will not have to work as hard to handle a smaller load, and will run cooler and more stable. Luck to you.Meemasaurusrex quote: A 12V DC device needs a 12V DC adapter i agree quote: And for Amperage (the amount of power your device uses) the adapter you order has to give AT LEAST the amount of Amps your device draws. If your device states it is 12V 1A, (or any number below 1A, like the ma's (think MG to GB) a 1A adapter or higher can handle that load. The higher amperage (amp) power supply will not have to work as hard to handle a smaller load, and will run cooler and more stable. while this may be true for a lab-quality power supply, it isn't for the run-of-the-mill power adapters everone buys, if the power supply isn't RATED AT what is going to be used, say 12V 1000 mA[12V 1A] WITH 1 amp LOAD = 12V @ 1A, however, less 'load' than that and the voltage begins to spike, if justh8me wants to use a 'generic' power supply, and the numbers he gave, 12V 5A, are what is written on the monitor's sticker, then that is EXACTLY what he needs to procure, http://www.google.com/search?hl=en&q=12V+5A+power+supply Quote however, less 'load' than that and the voltage begins to spike, excuse me? i would like you to provide us with some proof of that absurd statement.homer, quote: excuse me? i would like you to provide us with some proof of that absurd statement have thought about your posting, have finally decided upon a fitting response, first ,EXCUSE MEEE!!!, let's lose a bit of the attitude!!!, by your obvious attitude, your statement rather touched a spot, #1. you sir do not know me: a. WHO i am, NOR, b. WHERE i come from, NOR c. with WHAT BACKGROUND #2. you want proof, YOU go check it out for yourself, a good place to start?, try @ Cal Poly, they have: a. fantastic library there, b. very good course books, c. outstanding instructors, d. take lots of money, it AIN'T cheap, now, if this is just your way of writing without thinking, a very antagonistic approach i might add, oh well....... i apologize if my post seemed harsh, but, quiet FRANKLY, your post claiming "voltage will spike if less then the rated load is used" is absurd and my viewpoint will remain that way until you can back up your statement. Quote you want proof, YOU go check it out for yourself,you seem to have it backwards, it is your responsibility to backup your own statements, it is not the responsibility of the one who argues your claim. my arguing your statement is not a personal attack on you, and i am sorry if that is how you perceived it. |
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