I plugged wrong adapter (dock's proper voltage was 5V, but I plugged 9V adapter) and my dock speaker does not speak! It seems the adapter doesn't work anymore(automatically turns off in 3 sec) I found that I can turn on the power with batteries, but I still have no sounds. Can I fix it?

Audio Players & Recorders - Altec Lansing - - IMT320 - inMotion Compact