Question about Vehicle Parts & Accessories
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: Laptop AC Adaptor
If the light is going out whenever you plug the Ac adapter in you most likely have a short in the laptop. The most likely culprits are a failed battery or a damaged AC port. Remove the battery and AC the use a pen or pocket knife to wiggle the pin in the center of the AC port. If it is solid, it's probably good, if it wiggles it's likely broken(may need a pro for this repair).
Assuming it's ok, leave the battery out and try plugging the AC back in. If the light goes out the problem is likely on the motherboard and may need a pro. If the light on the AC pack stays on turn on the laptop, if that works the battery is the problem, you can purchase a new battery.
Try these and let me know how you make out,
Posted on May 26, 2009
Allan, It sounds like you have what is called a ground loop. A ground loop can occur when two pieces of equipment are connected together through a home or buildings safety ground through the same power source. For instance, your PC is connected to a power source through the AC adapter or plug, and your external powered speakers are receiving power from the same power source. The surrounding cables as well as the AC adapter(s) can act like an antenna. This will cause a low hum or crackling that would be audible through the speakers or headphones.
You may want to try plugging all components into a power strip so they are all on the same circuit. You may also want to be sure that the AC adapter cables are not not laying or running across other electrical components plugged into a different socket.
If you get the same hum through your headphones check to see if the headphones were manufactured with shielded cabling. A shielded cable is made with a wire mesh around the outside that helps reduce electrical noise. Hope this helps a little. Thanks!
Posted on Sep 14, 2012
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