Test F: Noise Diagnosis

Noise Diagnosis Test:

TEST F: NOISE DIAGNOSIS TEST:


Unplug the Antenna at the back of the Radio Receiver.

If the noise disappears, it was being picked up by the Antenna. Consult the Delco Sound Service Guide for Antenna noise diagnosis.

If the noise persists, it is coming in through the Radio wiring. Refer to the Noise Symptom Table for a possible cause and corrective action.

For more detailed noise repair procedures, consult the Delco Sound Service Guide. Service procedures are given for:

^ Accessory noise
^ CB antennas and noise
^ Computer noise
^ Shielding of wiring and components
^ Locating vehicle noise