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18
Settings
• “BT Control Pairing” enables Bluetooth control pairing for up to 30 seconds with the JBL Pro Control app. This turns off
when a pairing has been made, or after 30 seconds.
• The PRX900 loudspeaker will conrm a secure pin with the app. Please ensure you conrm this to secure BLE control
pairing.
• “LCD Contrast” allows the user to adjust the LCD contrast between 0 and 100%.
• “Firmware Version” shows the current rmware version loaded onto the speaker.
• “Factory Reset” resets all settings in the speaker to factory default, including Bluetooth communication pairing.
• “System lock” locks out all hardware operation from the speaker.
• To initiate system lock, press and hold the POWER button and the BACK button until all LEDs ash and a LOCK icon
appears in the top left corner of the LCD.
OR
Navigate to the System Lock eld in the settings menu, and select CONFIRM.
• To disable system lock, press and Hold the POWER button and the BACK button until all the LEDs ash the lock icon
disappears from the top left corner.
OR
Remove AC power and reboot the system.
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