Hi, my labtec speakers stop working the sub woofer is workin properly and the speakers are workin also(i checked them by connectin to another woofer) but when ever i connect to the one i have the speaker do not play. i have an idea that the fuse or IC might be broken but i dont know which is the fuse or IC. can you help me with this? is it possible to give me a picture showing which is the parts just so i can look and fix and maybe trouble shoot by myself.
SOURCE: Sub Woofer Not Working
Make sure it is plugged in and the volume is up. Also make sure you don't have your sound muted. Do any sounds come out of your computer? Go to the control panel and click sounds and do a test.
SOURCE: After I transported Labtec APX
Open the unit and look forr the fuse to the unit. If power comes to the sub woofer drive board , check for the rail voltage to the IC.
Check the resistance of the subwoofer, make sure it i working.
If supply is coming to board, check for any signs of crack on the PCB. If not check for any loose connection on the IC.
If posible use a good soldering iron to solder suspected points in the board and the IC pins.
Since your set was working we must use the logic to look for a fault that occured during the transit.
if all the tests prove corrrect, then we can suspect the IC.
Make sure that there is input audio signals to the IC before you can confirm.
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