Audio source testing circuit and audio source testing fixture

Abstract

An audio source testing fixture includes a housing and an audio source testing circuit. The housing has a right channel port, a left channel port, and a test signal output port. The audio source testing circuit is disposed within the housing and includes a right channel audio source receiving line, a left channel audio source receiving line, a first diode, a second diode, and a test resistor. Wherein, the right channel audio receiving line is connected to the right channel port; the left channel audio receiving line is connected to the left channel port; the anode of the first diode is connected to the right channel audio receiving line; the anode of the second diode is connected to the left channel audio receiving line; one end of the test resistor is connected to the cathodes of the first and second diodes, and both this end and the other end of the test resistor are connected to the test signal output port.

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