CHASSIS ELECTRICAL ± Radio and Tape Player54-72
B-5 Distortion on AM or on both AM and FM.
How much distortion is there?OccasionalDistortion in the vicinity of the radio sta-
tionYe sExcessive antenna input
Constant
No
Are the speaker cords in contact with the cone paper?Ye sRemove cords away from cone paper.
No
Remove the speakers and check for torn cone paper or foreign
objects.Ye sRepair or replace speakers.
No
Check for deformation with speaker installed.Ye sInstall speaker securely.
No
Repair or replace radio.
B-6 Distortion on FM only
Does the distortion persist when the radio is tuned to another station?NoDue to weak electrical field of radio station
Ye s
Does distortion increase or decrease when the vehicle is moved?Ye sDue to multipath noise
No
Repair or replace radio.
B-7 Too few automatic select stations.
OK
Is the check being conducted under spe-
cial electrical field conditions?Ye s
Example: In an underground
garage or inside a building
No
Is the antenna plug properly connected to the equipment?
Is proper performance obtained when
the vehicle is moved?
Ensure proper connection.No
No
Ye s
Repair or replace radio.Ye sDoes the equipment work properly if the radio is changed?
No
Replace the antenna.Ye s
