Repair of JBL car audio amplifier

/en/electronics/repair/ JBLthermal-camera
31/August/2025
authorArt
Art
Under the IR camera
Under the IR camera 960x1280
2025-08-31_22-41-04.jpg
Under the IR camera
Under the IR camera 960x1280
2025-08-31_22-41-18.jpg
PCB under IR-camera
PCB under IR-camera 960x1280
2025-08-31_22-41-23.jpg
JBL audio amplifier under a thermal imaging camera 960x1280 2025-08-31_22-41-32.jpg
JBL audio amplifier under a thermal imaging camera


Burnt out protective diode.
There was a short circuit on the 12V bus.

PCB - JBL audio amplifier 1280x960 2025-08-31_22-41-53.jpg
PCB - JBL audio amplifier
The reverse side of the PCB - JBL audio amplifier 1280x960 2025-08-31_22-41-49.jpg
The reverse side of the PCB - JBL audio amplifier


Original post on My WebArt • Repair of JBL car audio amplifier