T B O U B L E S H O O T I N G G U I D E
PROBLEM | POSSIBLE CAUSE |
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1. There is an audible distortion at a low | • Output levels NOT set correctly. |
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volume level. | • Crossover frequencies NOT set correctly. |
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| • Check for shorts on the speaker leads. |
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2. A whining sound can be heard through the | • Check the red power wire. It muse be |
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speakers when the audio system is at low | connected directly to the battery. |
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volume with the engine running. The whining | • Check the system's ground point It muse | 15 |
noise remains unchanged or seems to | make good contact with chassis ground | |
disappear when the volume level is | (bare metal). |
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increased. | • The radio and the CROSSOVER must be |
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| grounded at the same reference point. |
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3. There is a "motor boating" type of sound | • Check the red power wire. It must be |
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when the engine is running and the audio | connected directly to the battery. |
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system volume is set at a reasonably high | • Check the system's ground point. It must |
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level. | make good contact with chassis ground |
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| (bare metal). |
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4. High squeal noise from speakers | • This is almost always caused by a poorly - |
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| grounded RCA patch cord. |
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