How to Repair or Replace the JBL PartyBox 310 Control Panel

Tools & Parts Needed

• Replacement Control Panel Assembly (if replacing)
• Torx T15 & T10 Screwdrivers
• Phillips #1 Screwdriver
• Plastic Pry Tools / Spudgers
• Isopropyl Alcohol (90%+) and Cotton Swabs (for cleaning)
• Small container to organize screws
• Patience and a well-lit workspace

Repair Steps

1. Disclaimer: This is an advanced repair that can damage your speaker if done incorrectly. Proceed at your own risk. Professional service is recommended if you are not experienced with electronics repair.
2. Step 1: Power Off and Disconnect: Unplug the speaker from AC power and ensure it is fully powered down.
3. Step 2: Remove the Front Grille: Use a plastic pry tool to carefully work around the edges of the front metal grille and release the clips holding it in place. Set it aside.
4. Step 3: Remove the Top Handle: On the top of the speaker, locate and remove the Torx screws holding the orange retractable handle assembly in place. Lift the handle assembly out.
5. Step 4: Unscrew the Top Panel: With the handle removed, you will see more screws securing the main top panel. Remove all visible Torx screws around the perimeter of the top panel. Keep them organized.
6. Step 5: Carefully Lift and Disconnect: Gently lift the top control panel from the speaker's body. DO NOT PULL IT OFF. It is connected to the mainboard by one or more delicate ribbon cables. Identify these cables.
7. Step 6: Detach the Ribbon Cable(s): The ribbon cables are typically secured by Zero Insertion Force (ZIF) connectors. These have a small black or brown latch. Carefully flip this latch up with a spudger or fingernail to release the cable. Once the latch is up, the ribbon cable should slide out with no force. Disconnect all cables.
8. Step 7A: For Cleaning Sticky Buttons: With the panel removed, you can now access the underside. Use a cotton swab lightly dampened with isopropyl alcohol to carefully clean around the sticky button contacts and the rubber membrane. Let it dry completely before reassembly.
9. Step 7B: For Replacing the Panel: If you are replacing the entire panel, take your new part. Carefully insert the ribbon cable into the open ZIF connector on the mainboard. Ensure it is straight and fully inserted, then press the latch down to secure it.
10. Step 8: Reassemble and Test: Reassemble the speaker by following the steps in reverse order. First, secure the top panel with its screws. Re-install the handle. Before putting the front grille back on, power on the speaker and test every single button and knob on the control panel to ensure they function correctly.
11. Step 9: Final Reassembly: Once you've confirmed everything works, power the speaker off. Align the front grille with the clips and press it firmly back into place until it snaps in all around.