54-I
62
CHASSIS ELECTRICAL
-
Radio and Tape Player
A-4
Broadcasts can be heard but both AM and FM have a lot of noise.
(1)
Noise occurs when the engine is stopped.
Yes
J
(2)
Noise occurs when the engine in running.
Do the following measures eliminate the noise?
@ Tune to a station with a strong signal.
l Extend the antenna completely. (Whip antenna)
l Adjust the sound quality to suppress high tones.
No
Is the radio body ground mounted securely?
Yes
Securely tighten the nuts for the body
ground.
Yes
Yes
Clean the antenna plug and ground
wire mounting area. Mount the anten-
na securely. On a vehicle with a motor
antenna, check the antenna itself. (Re-
fer to E-1, 2.)
If there is more noise than other radios, consult a service
center
NOTE
About noise encountered during FM reception only.
Due to differences in FM and AM systems, FM is
noise interference (first fading and multipath). (Refer
to A-2.)
not as susceptible as AM to interference from en-
gines, power lines, lightning, etc. On the other hand,
<Noise
(hissing) occurs in weak signal areas such
there are cases due to the characteristics of FM
as mountainous regions, but this is not due to a
problem with the radio.>
waves of noise or distortion generated by typical
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