Mitsubishi Pajero Pinin 1999 Workshop Manual page 778

CHASSIS ELECTRICAL ±
A-3 Broadcasts can be heard but FM/MW/LW has a lot of noise.
(1)
Noise occurs when the engine is stopped.
Yes
Do the following measures eliminate the noise?
Tune to a station with a strong signal.
Extend the antenna completely.
Adjust the sound quality to suppress high tones.
No
Is the radio body earth mounted securely?
Yes
Is the antenna plug properly connected to the radio?
Yes
Is the antenna itself in good condition or is it properly
mounted?
Yes
Yes
OK
No
Securely tighten the nuts for the body
earth.
No
Correctly attach the antenna plug.
No
Clean the antenna plug and earth wire
mounting area. Mount the antenna se-
curely.
Is the noise eliminated?
No
If there is more noise than other radios, consult a service
centre.
Radio and Tape Player
(2)
Noise occurs when the engine in running.
Inspect the vehicle's noise suppressor. (Refer to A-4.)
Yes
54A-51
OK