Kenwood Amplifier A-5j Manual [work] -

The service manual provides a signal trace path. Usually, this points to the "Loudness" switch or the "Tape Monitor" switch contacts. The manual shows how to access the switches for cleaning with DeoxIT.

Note: Exact numeric specs vary by source and production run; consult the unit’s rear panel and internal schematic/label for precise ratings. Kenwood Amplifier A-5j Manual