JBL LSR305 - Troubleshooting Guide; No Sound Troubleshooting Steps

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Section 7: Trouble Shooting
TROUBLE SHOOTING
If there is no sound from your speakers, check these settings:
• Make sure a signal source is connected and producing sound.
• Make sure the POWER INDICATOR is illuminated on the front of the speaker.
• Make sure the VOLUME CONTROL is not set to the full counter-clockwise minimum position.
• Conrm the power cable is connected and the POWER SWITCH is set to the ON position.
If the above measures do not correct the problem, please contact JBL Professional Customer Service.