Technics Sa-370s Service Manual |verified| -

Phono (MM), AUX, Mic mixing (Karaoke), and support for 4 speakers.

After an hour of meticulous desoldering and replacing the faulty components identified in the manual, it was time for the "Idling Current Adjustment" described in section 5. He carefully turned the tiny potentiometers until the needles on his meter stabilized. Technics Sa-370s Service Manual

If original transistors are obsolete, cross-reference the parameters in the manual with modern equivalents (such as ON Semiconductor parts) ensuring matching pinouts (ECB vs. BCE). Conclusion and Safety Warning Phono (MM), AUX, Mic mixing (Karaoke), and support

Source: Radiomuseum.org

Crisp, clean wattage optimized for vintage high-efficiency speakers. Mic mixing (Karaoke)