The adapter with power supply cord for my hp sperakers for my computer got lost ion a move. Requirements for the unit are; 12 volt 1amp. Where can i find a replacement? Neither Radio shack nor Micro center were helpful and had no unit that would serve my needs.
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make sure it is compatible first if it isn't it'll not power the computer (best case scenario) or fry it (worst case scenario) look up the computer's requirements as well as compatible power supplies and make sure that the power supply is not so old that it is a safety hazard.
There are two places the trouble can be happening, at the adapter plug or at the power jack in the laptop. To determine which one is causing the power loss, hold the plug in the computer steady with your fingers while you wiggle the adapter cable. (If you have access to a voltmeter you can measure the voltage at the plug while you wiggle the cable to see if remains steady.)
If the charge light flickers it's the adapter cord that's bad. Because the wire flexes so much at the plug, it can break inside the insulation and cause the power loss. You either need to replace the adapter or repair it by cutting off the bad end and installing a new plug.
If the charge light remains on with the plug held steady but flickers when you wiggle the plug itself, the trouble is on the main board in the computer. The solder connections at the power jack have broken from the plug flexing and need to be repaired. This involves opening up the computer and getting at the solder side of the main board. It's tedious but relatively simple. If you are not experienced with soldering on small electronics, leave this to a professional shop.
Go to the family dollar they have those wires that have both male ends. It is meant for ipods, and mp3 players so you can connect them to modern stereos that have inputs like that. I bought sevel of them because they are very usefull for about a few bucks each.
most notebook adapters i've seen have the light stay on as long as it's supplying power to the notebook. so your p/s maybe defective - my guess is that something's tripping it - are you sure the p/s is suitable for your particular notebook (based on voltage/current/power requirements)?