Seeking Help: JBL LSR 308 Schematic Diagram or Service Manual
Where can I find the schematic diagram or service manual for the JBL LSR 308?
I can't seem to find it.
The speaker suddenly started crackling out of nowhere, even without any connected input.
Please see the video at the bottom for a sample of the sound.
I took it to an electronics repair technician yesterday, and he mentioned that the power amplifier is functioning properly, but the preamplifier section is not working well.
However, he's unable to find the schematic diagram or the service manual for the JBL LSR 308.
He mentioned that he needs these resources to diagnose the issue.
Any assistance in finding the schematic diagram or service manual would be greatly appreciated.
Video of the speaker issue:
Thanks for your anwser,