Method and apparatus for troubleshooting the stereo audio circui

Details Method and apparatus for troubleshooting the stereo audio circui Method and apparatus for troubleshooting the stereo audio circui

1992-01-09

1993-11-30

Isen, Forester W.

Electrical audio signal processing systems and devices

Monitoring/measuring of audio devices

H04R 2900

Patent

active

052673197

ABSTRACT:
A composite test signal which consists of the combination of four audio modulated carriers is developed and injected into the stereo audio circuits of a Beta type VCR. The audio output of the VCR is observed or listened to in order to determine if the circuits downstream of the point of injection of the test signal are operating correctly.

REFERENCES:
patent: 3474451 (1969-10-01), Abel

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