AM and FM stereo bands with analog weighted tuning flywheels.
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When testing a live chassis with an oscilloscope, always use an isolation transformer to protect both yourself and your test equipment from ground loops and short circuits. Technics Sa-370s Service Manual
Websites like ManualsLib or dedicated vintage electronics forums often host archived copies.
Mechanical diagrams for the cassette transport system and chassis . Technical Specifications AM and FM stereo bands with analog weighted tuning flywheels
A genuine service manual for the SA-370S contains:
Set your digital multimeter (DMM) to the millivolt (mV) DC range. Connect the DMM leads to the Left speaker terminals. Connect the DMM leads to the Left speaker terminals
Before you search, be aware that there is also a (without the "s") and a separate System Fidelity SA-370 which is a different product. This is why it is crucial to ensure any manual you find is specifically for the Technics SA-370S to guarantee it has the correct schematic for your unit's tape mechanism.
The three most promising avenues are , community forums , and professional schematic archives . The table below outlines the details and links for you.
Visual maps of the actual circuit boards, helping you physically locate components mentioned in the schematics.
What the service manual contains (typical exhaustive breakdown)