Inspection Procedure 8: Broadcasts can be Heard but Both LW/MW/FM have a lot of Noise.
DIAGNOSIS PROCEDURE
STEP 1. Check the state of the antenna.
Q.
Is the antenna assembled?
STEP 2. Check that the noise occur when the engine is stopped or the engine is running.
Q.
Does noise occur when the engine is stopped or the engine is running?
STEP 3. Check that the following actions disappear the noise.
| (1)Tune to a station with a stronger wave. |
| (2)Adjust the sound quality to suppress high tones. |
Q.
Is the noise eliminated?
Step 4. Check that the radio is correctly earthed
Q.
Is the radio correctly earthed?
STEP 5. Check the connection of the antenna plug and audio unit.
Q.
Is the antenna plug thoroughly connected to the audio unit?
STEP 6. Check that the noise is eliminated when the antenna plug is properly attached.
Q.
Is the noise eliminated?
STEP 7. Check that the antenna is in good condition and is it properly mounted.
Q.
Is the antenna in good condition and is it properly mounted?