Powers Up Ans Shuts Down Immediately

1. Check the power source: Ensure that the boombox is plugged into a working power outlet and that the power cord is securely connected to the boombox.
2. Check the batteries: If you are using batteries to power the boombox, ensure that they are fresh and installed correctly. Try replacing the batteries with a new set.
3. Reset the unit: Turn off the boombox and unplug it from the power source. Wait for a few minutes before plugging it back in and turning it on again.
4. Check the disc player: If you have a disc inside the boombox, remove it and try turning on the unit again. A faulty disc player can cause the boombox to shut down immediately.
5. Check for any loose connections: Check all the connections between the various components of the boombox, including the speakers and any auxiliary devices.
6. Try a different power source: If possible, try powering the boombox from a different power outlet or with a different set of batteries to see if the issue is related to the power source.

If none of the above steps work, it may be best to contact Sony customer support or take the boombox to a professional repair shop for further assistance.