JBL 305PMKII [18/22] Section 7 troubleshooting

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Issue: There is no sound from the speakers.

• Conrm the power cable is connected to the speaker and the POWER switch is set to the ON position.

• Make sure the POWER LED is illuminated on the front of the speaker.

• Make sure a signal source is connected to the speaker and that it is producing sound.

• Make sure the speaker's VOLUME control is not set to the full counter-clockwise (minimum) position.

Issue: The signal is distorted.

• Verify the speaker's INPUT SENSITIVITY switch is set to +4dBu. If the distortion persists, even with the

speaker's VOLUME control set low, inspect the gain stages throughout the system to determine which

one of the speakers off of the supporting surface to see if the boominess is lessened. If it is, the speaker

is likely resonating through the surface it is sitting upon. Try isolating the speakers using a third-party

speaker isolation product. Alternatively, try engaging the BOUNDERY EQ on the speakers. Try both the

-1.5dB and -3dB settings to determine which setting provides the most natural bass response.

• If using the LSR310S Studio Subwoofer, try locating the subwoofer in a different position in the room,

away from corners. Try placing the subwoofer at the listening position and walk around the room while

listening to the system. When you nd a practical position that provides the desired bass response, try

placing the subwoofer at that location.

If the above measures do not correct the problem, please contact JBL Professional Customer Service for

assistance.