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RADIO AND CD PLAYER CHASSIS ELECTRICAL 54A-123 8. If due to vehicle noise: It may not be possible to prevent noise if the signal is weak. 9. If due to external noise: In almost all cases, prevention on the receiver side is not possible. If there is more noise than on radios in other INSPECTION PROCEDURE 5: Mixed with Noise, Only at Night (AM). The following factors can be considered as possible that long-distance signals are more easily 2. Factors due to vehicles noise: Alternator noise may be a cause. DIAGNOSIS PROCEDURE Step 1. Check that the noise still obvious even Q: Is the noise still obvious even when the lamps are off? YES : Go to Step 2. NO : Go to Step 3. Step 2. Check hat the following actions. completely extending the antenna (Mast Q: Is there more noise than on radio in other vehicles? YES : Consult the radio manufacturer's service centre. NO : Check that there is no noise. Step 3. Check that the noise fades away when the Q: Does the noise fade away when the vehicle harness is moved any from the radio (If the YES : Consult the radio manufacturer's service centre. NO : If there is more noise than other radios, INSPECTION PROCEDURE 6: Broadcasts can be Heard but Both AM and FM have a lot of Noise. DIAGNOSIS PROCEDURE Step 1. Check the state of the antenna. Q: Is the mast antenna assembled? YES : Go to Step 2. NO : Assemble the mast antenna. Check to see Step 2. Check that the noise occur when the Q: Does noise occur when the engine is stopped or the engine is running? When the engine is stopped : Go to Step 3. When the engine is running : Check the vehicle's noise suppressor (Refer to Inspection |