Harman JBL EON600 Series Manual de usuario

EON600 Fuse Replacement

Repair Addendum

v 1.0 -03/19

1. Remove all eight of the amplier module screws (see Figure 1) from the enclosure.

Figure 1. Amplier Module Cover

1

EON600 Fuse Replacement

Repair Addendum

v 1.0 -03/19

2. Remove the amplier module from the enclosure recess and disconnect the speakers, LED, and

Bluetooth antenna connections.

3. Locate the fuse on the PCBA (see Figure 2). e stock fuse should have a shrink-wrap cover.

4. Verify the fuse is blown by using an ohmmeter.

5. If the fuse is open, place the module on a bench and remove all eight of the amplier PCBA

screws (Figure 3).

6. Pull the amplier PCBA o the module assembly and dispose of all thermal pads (new

pads will need to be installed).

7. Carefully remove or cut away the white anti-vibration RTV from the fuse and its adjacent parts.

8. Unsolder the fuse from the PCBA.

9. Clean up PCB pads where the fuse was soldered to the PCB.

10. Add shrink wrap to the new fuse and bend leads in a manner similar to original fuse.

Figure 2. PCBA Fuse

2

EON600 Fuse Replacement

Repair Addendum

v 1.0 -03/19

11. Insert new fuse (Littelfuse 0218004.MXED or XCE 5T4000212000R15 or equivalent).

12. Solder the fuse to PCB and trim excess leads on the solder side of the PCB.

13. Using an ohmmeter, verify the fuse is connected properly and reads as a short.

14. Add non-corrosive, electronics-grade RTV between the fuse and the heatsink.

15. Replace the thermal pads on the heatsink mounted power semiconductors using JBL

service-recommended parts.

16. Remount the amplier PCBA to the amplier module assembly. Tighten screws to the

appropriate torque.

17. Reconnect all connections and reinstall into the enclosure recess.

18. Reinstall all module screws and tighten to the appropriate torque.

19. Test unit operation prior to releasing repaired nished goods to original customer.

Figure 3. Amplier PCBA

3

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