What You'll Need
- The Original JBL Power Cable
- A Known-Working Power Outlet
Troubleshooting Steps
- Check the Power Cable Connection: Ensure the AC power cord is fully and securely plugged into both the back of the PartyBox 310 and the wall outlet. A loose connection is a common culprit.
- Test the Power Outlet: Confirm the wall outlet is working by plugging in another device, like a lamp or a phone charger, that you know is functional.
- Inspect the Power Cable for Damage: Examine the entire length of the power cord for any visible signs of damage, such as cuts, frays, or bent prongs. If you see any damage, do not use the cable.
- Try a Different Power Cable: If you have another compatible power cable (a standard IEC C7 'figure-8' cord), try using it to rule out a fault in the original cable.
- Attempt a Hard Reset: Unplug the speaker from the wall outlet. Press and hold the Power button for 30-40 seconds to discharge any residual power. Release the button, plug the speaker back in, and then try to turn it on normally.
- Check if it Works on Battery Power: If the speaker was previously charged, unplug it from the wall and try turning it on using only its internal battery. If it powers on, the issue might be with the AC charging circuit.
- Charge It for Several Hours: If the internal battery is completely drained, the speaker may not turn on immediately, even when plugged in. Leave it connected to a reliable power source for at least 3-4 hours and then try to power it on again.