Inspection Procedure 19
INSPECTION PROCEDURE 19: Distortion on AM and/or FMDIAGNOSIS
STEP 1 Check the level of distortion
Q: How much distortion is there?
Occasional distortion : Go to Step 2
Constant distortion : Go to Step 3
STEP 2 Check the location of the distortion
Q: Is there distortion when the vehicle is near the radio station?
YES: The antenna is receiving too strong a signal
NO: Go to Step 3
STEP 3 Check the wires at each speaker
Q: Are the speaker wires contacting the paper speaker cone?
YES: Move the speaker wires away from the paper speaker cone The speaker should now be free of distortion
NO: Go to Step 4
STEP 4 Remove the speakers, and check the paper cone for foreign material or damage
Q: Is there foreign material or damage on the paper cone of the speaker?
YES: Repair or replace the speakers The speaker should now be free of distortion
NO: Go to Step 5
STEP 5 Check for distortion with the speaker installed Q: Does a distortion occur?
YES: Install the speaker securely The speaker should now be free of distortion
NO: Repair or replace the radio and CD player or radio, CD player and CD changer The speaker should now be free of distortion