Hello! I am in the process of reverse engineering a 2.1 computer speaker system.
To expose some tracks I had to remove a blob of epoxy glue. While removing the glue I also removed what I think was an inductor under the glue.
I was able to reverse engineer the circuit and now I would like to replace the inductor. However, I have no idea what kind of inductor to purchase.
As you can see from the photos the inductor is very small and is damaged, so little hope to measure the inductance directly.
By looking at the schematics can you guess what is the original value of the inductance L1?
The inductance dimensions are about 3mm x 1.5mm x 1.5mm.
The LEFT_IN and RIGHT_IN signals come directly from the jack input. The WIRED_LEFT and WIRED_RIGHT signals go on to the input of an OPAMP amplifier.
To expose some tracks I had to remove a blob of epoxy glue. While removing the glue I also removed what I think was an inductor under the glue.
I was able to reverse engineer the circuit and now I would like to replace the inductor. However, I have no idea what kind of inductor to purchase.
As you can see from the photos the inductor is very small and is damaged, so little hope to measure the inductance directly.
By looking at the schematics can you guess what is the original value of the inductance L1?
The inductance dimensions are about 3mm x 1.5mm x 1.5mm.
The LEFT_IN and RIGHT_IN signals come directly from the jack input. The WIRED_LEFT and WIRED_RIGHT signals go on to the input of an OPAMP amplifier.
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