Plug the AC adaptor into a working wall socket and plug the connector into the supply jack on the unit.
If unit is plugged in and doesn't respond, try resetting the unit by following these steps:
a) Remove iOS device (iPhone/iPod/iPad) from dock b) Unplug unit from power source c) Remove back up batteries d) Wait a few minutes, then reinstall battery and resume use
iPhone/iPod/iPad is not docked properly.
a) Remove your iPhone, iPod, or iPad from the dock and check for obstruction on the connectors in the dock and on your iPhone/iPod/iPad. Then reseat it in the dock. Also try removing any case or “skin” on your device that may be preventing proper contact.