Posted 08 March 2011 - 06:07 AM
Yes, it is fine to have higher Amperage rating on the supply. That indicates up to how much it can provide without being overloaded. If the monitor pulls less, the power supply just has less work to do, so to speak. So a 3A or 3.5A supply will be OK.
The Voltage, polarity (+ and - on plug) and DC or AC output all need to be correct as per the monitor's specification.
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