54-166
CHASSlS
ELECTRICAL
-
Radio and Tape Player
I
A-7 Some noise appears when there is vibration or shocks during traveling.
‘d
~
Are connectors properly connected?
Yes
No
---+
Ensure proper connection
t
Does noise appear when the radio switch is turned on while the
No
vehicle is stopped and the radio is struck while tuned away from
L
a station?
Yes
Static electricity noise:
Body static electric from the shock absorber rubber bushings used
to prevent vibration, tires, etc. occurs because of separation from
the ground, causing a buzzing noise.
Since no measures can be taken on the radio side, steps should
be taken to discharge the static
electricitv
of the vehicle bodv.
t
Is the radio correctly grounded?
(Is the mounting screw tightened securely?)
1
Yes
t
Is the antenna correctly grounded? (If noise appears when the
No
c
antenna is moved, this means the ground is not securely con-
nected.)
If rust is present on the antenna ground screw, clean and tighten
the ground securely.
Yes
1
Reoair
or
reolace
radio.
1
TSB Revision
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