Will Not Charge Your Apple Device
Apple device's charge indicator does not appear when connected.
Be sure that your dock is connected to a wall outlet or your computer so that it will charge your device.
Error Message "Charging is not supported with this accessory"
This problem may be caused by a poor connection between the dock and your Apple device and can be resolved by disconnecting the iPhone/iPod and:
- Waiting a minute before reconnecting it to the JBL dock
- Cleaning the connectors on both the JBL dock and the Apple device
- Cycling the power of both the dock and Apple device
Music Will Not Play
Power is on but the music will not play out of the JBL speaker.
Check That Your iPhone/iPod Indicates that a Connection has been Made
If your Apple device does not indicate that it is connected disconnect and reconnect it to the JBL dock.
Volume at Zero
Be sure that the volume is not turned off. Raise the volume on both your device and the JBL speaker.
Connected by Auxiliary Cord
If using an auxiliary cord instead of the dock, be sure that the connection between the JBL speaker and your device is not loose.
If the auxiliary cord fits loosely:
*disconnect then reconnect the auxiliary cord
*otherwise, see: Disassembling the Circuit Board
Music is Distorted
Static, buzzing, and/or humming noises are playing through the JBL speaker while playing music.
Input Cable May Be Improperly Connected
Be sure that the input cord is not loose.
Volume Too High
Distortion may occur when the volume level is too high for some devices. Lower the volume.
Equalizer (EQ) Setting Too High
Change the EQ setting to flat or turn it off.
If the distortion only occurs on some songs, those songs may have been recorded or downloaded improperly. Re-download those songs from another source.
Loose or Disconnected Speaker
One or more of the wires to a speaker are disconnected. Use this guide to reconnect them: JBL On Stage II Speakers Replacement
The volume is stuck on high or low, or the power button is unresponsive.
Volume Stuck On High
There may be a short circuit. [See this guide.] This is a chip level problem and involves replacing a surface mount chip on a circuit board
See JBL On Stage II Power Button Replacement for replacing a broken button.
Dock Connector is Loose
The connector is loose and the dock will not play music from your iPhone/iPod.
Connector is Broken
See JBL On Stage II 30-Pin Connector Replacement for replacing broken connector.
Will Not Turn On
Using JBL speaker in another country and now your speaker does not work.
Be sure that your dock is connected to a wall outlet or your computer so that it will turn on.
Power Brick has Gone Bad
The country that the device is being used in may have different power standards than the country it was purchased or regularly used in. Purchase a different power supply or a power converter. [guide]