Laptop sound problem
Dec 26, 2017 5:13:27 GMT -8
Post by shawnturner on Dec 26, 2017 5:13:27 GMT -8
Hello,
I was experimenting a circuit I have built (infrared headphones). I used the headphones jack of my laptop as the source of the audio signal for the transmitter circuit. One of the jack lines is the ground, and is connected to the transmitter ground, the supply voltage of the circuit is a 9V battery. Accidentally, the audio signal line from the headphones jack was connected to the +9V and for several seconds. the wires and the plug became hot, and the laptop sound stopped. I disconnected everything and tried the laptop sound.. even the volume was max. but it wasn't working, no sound. After I restarted the computer, the sound worked! but it wasn't high as usual, the volume was about 1/3 the volume was before. I checked the 'software' issues related to volume and sound device... everything is as norma
Please help
Thanks
I didn't find the right solution from the Internet
References:
forum.allaboutcircuits.com
Startup Launch Video
I was experimenting a circuit I have built (infrared headphones). I used the headphones jack of my laptop as the source of the audio signal for the transmitter circuit. One of the jack lines is the ground, and is connected to the transmitter ground, the supply voltage of the circuit is a 9V battery. Accidentally, the audio signal line from the headphones jack was connected to the +9V and for several seconds. the wires and the plug became hot, and the laptop sound stopped. I disconnected everything and tried the laptop sound.. even the volume was max. but it wasn't working, no sound. After I restarted the computer, the sound worked! but it wasn't high as usual, the volume was about 1/3 the volume was before. I checked the 'software' issues related to volume and sound device... everything is as norma
Please help
Thanks
I didn't find the right solution from the Internet
References:
forum.allaboutcircuits.com
Startup Launch Video
