| 摘要 |
An apparatus (10) for diagnosing automobile audio systems comprises a system integrity analyzer (20) which includes a speaker test means (24). The speaker test means (24) includes a member for supplying an input to each of the positive leads (61) and negative leads (62) while supplying ground to the other of the positive and negative lead. This, in turn, facilitates diagnosis of the operation of the audio system of the vehicle. In addition, the apparatus comprises a system for analyzing vibrations (30) comprising a frequency transmitter (70) and an oscillator (75). The frequency transmitter (70) is capable of transmitting a signal generated by the oscillator (75) on a frequency that is receivable by a vehicle audio system. The oscillator (75) includes means for altering the signal generated by the oscillator between the lower audible range and the upper audible range.
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