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A-7
Some noise appears when there is vibration or shocks during traveling.
Are connectors properly connected?
Yes
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
a station?
Yes
Is the radio correctly grounded?
(Is the mounting screw tightened securely?)
Is the antenna correctly grounded? (If noise appears when the No
antenna is moved, this means the ground is not securely con-
nected.)
Yes
No
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.
If rust is present on the antenna ground screw, clean and tighten
the ground securely.
1
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