: Offers fine-tuning with Bass and Treble adjustments of respectively.
Swap the left and right speaker wires at the back of the amplifier. If the dead channel switches to the other speaker, the issue lies with your source cable or input. If the same side remains dead, the amplifier's internal channel fuse or output stage may require service. Kenwood Amplifier A-5j Manual
: Frequently lists technical diagrams and basic operation guides for the Kenwood AH5 series which shares much of the A-5J's internal architecture. : Offers fine-tuning with Bass and Treble adjustments
Schematic & service manual resources
If you prefer a physical, printed copy, many archival businesses sell high-quality reprints or original paper manuals. Kenwood Amplifier A-5j Manual