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Details power transformer, fuse ratings, idle current, and secondary winding outputs for ON/OFF and amplifier stages.
Explains signal sensing, Schmitt trigger operation, relay activation, LED indication, and temperature protection for auto power.
Describes signal flow through variable high pass filters, buffer amplifiers, and summing into an active low filter.
Covers variable low pass and fixed high pass filters, noting remaining components are for the Ace-Bass amplifier.
Explains the Ace-Bass amplifier, driver current sensing, bandpass filtering, signal summing, and negative output resistance.
Details input signal path, negative feedback, soft clipping network, Darlington output stage, and bias current temperature sensing.
Guides on checking LEDs, fuses, DC voltages, and localizing faults using signal generator and test points with expected AC values.
Provides steps to diagnose blown fuses by checking driver disconnection, test point H signal, and voice coil resistance.
Details checks for the auto ON/OFF function, including test point K signal, test point L voltage, and R213 shunt for delay.
Instructions for readjusting bias current after transistor replacement, setting R523 for specific emitter voltage.
Procedure to reset negative output resistance by adjusting R411 with a signal generator and specific input conditions.
Presents the detailed schematic diagram of the subwoofer, covering power supply, signal path, and amplifier sections.
Illustrates the physical placement of components on the PCB, referencing test points and connections for repair.
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General