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Old 09-04-2008, 09:26 AM   #1 (permalink)
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Default Wall Charger Makes HIGH PITCH NOISE

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Just wondering if this is normal: when my wall charger is plugged in with my phone not charging it makes this excruciating high pitch sound (it comes directly from the wall charger). But then if I plug my phone into the charger, the sound goes away. Of the many phones I've had none has ever done this.

Any help would be great
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Old 09-04-2008, 09:31 AM   #2 (permalink)
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Help? I would advise unplugging it.

Try another, if it doesn't do it, keep the new and trash the old.

120 volts is nothing something you want to take a chance on.
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Old 09-04-2008, 09:42 AM   #3 (permalink)
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Yeah, change it don't take a chance be safe.
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Old 09-04-2008, 09:56 AM   #4 (permalink)
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In fact I'd go so far as to cut the cord so nobody down the line tries to use it.
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Old 09-04-2008, 09:58 AM   #5 (permalink)
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Always keep electronics unplugged when not in use. It eventually harms the transformer, not to mention wasted energy.
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Old 09-05-2008, 12:19 AM   #6 (permalink)
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Would this be a warranty issue....I just got it about a week ago.

Thanks for the help


Quote:
Originally Posted by JSanders View Post
Help? I would advise unplugging it.

Try another, if it doesn't do it, keep the new and trash the old.

120 volts is nothing something you want to take a chance on.
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Old 09-05-2008, 12:46 AM   #7 (permalink)
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The high-pitched noise you're hearing is from the power electronics in the charger, possibly in the buck converter circuit (steps down DC voltages). I've had that happen to me on a crummy AC adapter for an all-in-one, so I vote trying to get it replaced.
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Old 09-19-2008, 11:27 AM   #8 (permalink)
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if you've had it for only one week... I'd call and get this warranty replaced. They should do this free of charge.
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Old 09-19-2008, 11:29 AM   #9 (permalink)
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Wow!! Never heard of a charger making noises. Must be really bad.
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