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Selecting Power Adapter for LCD Monitor and LCD TV
There are basically three different types of DC plus were use on most of AC Power adapter They are:

Barrel Plug with Center Female



Barrel Plug with Center Male



4 Pin Din Plug



Most of LCD Monitor and Laptop Computer use Barrel Plug with 12 V DC Power Adapter, while 4 Pin Din plug use on larger size of LCD TV.

Barrel Plug Dimension
Outside dimension must match your adapter, otherwise, you may not able to connect to your LCD monitor, while inside dimension could allow 5-7% of aviation base on your measurement. Output Voltage:
Output Voltage and polarity must match with your old adapter. Most of Barrel Plugs are center positive
Output Current:
Output current is not as critical as output voltage, you could select either same or higher output current adapter. For example, your defective adapter output current is 3A ( 3 amp), You used either 3A, or 3.16A or 4 A or even 5A. But you can not use the lower output current adapter such as 1A or 2A that you may be able to purchase at your local Radio Shack. The Reason: The maximum current that your LCD monitor can draw is 3 A regardless how much more current that adapter can supply. On other hand, if the replacement adapter supples much less current then 3A, it may causing problem such as flickering, or Monitor can not be turn on.
Availalbe New Generic Repalcement Adapters are:
12VDC, 3.3A 40W Adapter...details
12VDC, 4.16A 50W Adapter...details
14VDC, 5A 60W Adapter...details

4 Pin Din Plug

Output Voltage:
Output Voltage and polarity must match with your defective adapter. Please check the polarity of your Adapter, The pin layout should be on the label of your defective adapter. Output Current:
Output current is not as critical as output voltage, you could select either same or higher. For example, your defective adapter output current is 3A ( 3 amp), You could used either 3A, or bigger. But you can not use the lower output current adapter such as 1A or 2A that you may be able to purchase at your local Radio Shack. Note: The maximum current that your LCD monitor can draw is 3 A regardless how much more current that adapter can supply. On other hand, if the replacement adapter supples much less current then 3A, it may causing problem such as flickering, or Monitor can not be turn on.
Available New Generic Replacement Adapters are:
12VDC, 5A 60W Adapter...details
24VDC, 6A 70W Adapter..details


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