Mitsubishi MOTORS Laser 1991, Service Manual, Page: 275 / 320

SYSTEM
Mixed with noise, only at night (AM).
The following factors can be considered as possible susceptible to interference, and a change to a
causes of noise appearing at night. different station or the appearance of a beat sound*
Factors due to signal conditions: may occur.
Due to the fact that long-distance signals are more
*Beat sound: Two signals close in frequency
easily received at night, even stations that are
interfere with each other, creating a repetitious
received without problem
during the day may high-pitched sound. This sound is generated not
experience interference in a general worsening of
only by sound signals but by electrical waves as
reception conditions. The weaker station is more
well.
Does the noise occur even
when the lights are turned
off?
I
No
Is
the
antenna plug
properly connected to
the radio?
I
Correctly connect the
antenna.
strong signal without
extending the
antenna.
l
Tune to a strong station.
l
Tune to a station with a
Does the following measure elim-
inate the noise?
Yes No
l
Move the harness
on
the vehicle
side away from the radio body (if
the harness is not in the proper
No
I
If there is more noise than other radios, consult a
service center.