Question about Computers & Internet
How to fix an audio jack on a laptop? / What's your diagnosis
If somebody could help me out...I'm pretty sure I blew something up when I plugged the output of a guitar amplifier to the headphone jack of the laptop because since then, when something is plugged in that jack, (speakers or headphones) nothing comes out. When nothing is plugged in, the sound correctly comes out of the two internal laptop speakers. Does anybody understand what happened
Yep, you blew it up, all right.
The headphone jack in the laptop is a low-level OUTPUT which goes TO a set of headphones or the INPUT of an amplifier. You went the wrong way and fed a high-level signal (the guitar amplifier OUTPUT) INTO the laptop.
The electronics inside the laptop are not made to deal with the high level you fed in, so it's been damaged. Ever blow out a set of speakers with too high a volume? That's basically what has happened here.
To fix the problem and get your sound back would require a new system board.
Posted on Jan 19, 2009
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Posted on Jan 02, 2017
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