Having problems with your Altec Lansing FX4021 Computer Speakers ?

My subwoofer IC got burned because i accidentally plug it to a 220v power supply, mine is only 110v i want to know the IC# subwoofer.

Answers :

Most likely what got burnt is the bridge rectifier in the power supply section of the electronic circuit. This usually takes the shape of either a single 4-legged IC, or a group of 4 rectifying diodes connected in a bridge configuration. If you disassemble the unit to which the power cord is attached & trace the circuit starting from the terminals of the power chord, you can easily identify it. You will need to replace the 4-legged IC or the 4 rectifying diodes.
You will also need to replace the fuse, since it is usually likely that it gets burnt if the unit is attached to 220V instead of 110V.
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