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RADIO WITH TAPE PLAYER AND CD PLAYER TSB Revision CHASSIS ELECTRICAL 54A-129 Inspection Procedure 8: Broadcasts can be heard but both AM and FM have a lot of noise. DIAGNOSIS STEP 1. Check that the noise occurs when the Q: Does noise occur when the engine is stopped or the engine is running? Go to Step 2. When the engine is running : Check the vehicle's noise suppressor. (Refer to Inspection STEP 2. Check that the following actions Q: Is the noise eliminated? YES : Consult the radio manufacturer's service center. NO : Go to Step 3. STEP 3. Check that the radio is correctly Q: Is the radio correctly grounded? YES : Go to Step 4. NO : Consult the radio manufacturer's service STEP 4. Check that the antenna plug is properly Q: Is the antenna plug properly connected to the radio? Go to Step 7. NO : Go to Step 5. STEP 5. Check that the noise is eliminated when Q: Is the noise eliminated? YES : Consult the radio manufacturer's service center. NO : Go to Step 6. STEP 6. Check that the antenna is in good Q: Is the antenna in good condition and is it properly mounted? Consult the radio manufacturer's service center. NO : Go to Step 7. STEP 7. Clean the antenna plug and ground wire NOTE: Noise encountered during FM reception only .) <Noise (hissing) occurs in weak signal areas such as mountainous regions, but this is not NOTE: Furthermore, the amount of interference will NOTE: Diversity antenna system*: A system where Q: Is the antenna in good condition? YES : Consult the radio manufacturer's service center. NO : Clean or repair it. Check the noise is Inspection Procedure 9: There is more noise on either AM or FM. DIAGNOSIS in AM and FM systems, AM is more susceptible to |