Subaru 1600 Service Manual page 838

ELECTRICAL SYSTEM
a.
Low
sensitivity
Turn ignition switch to ACe.
I
radio for curate tuning.
No
Inaccurate tuning.
I
Reset tuning knob.
Check
I
Yes
Check antenna trimmer for pro-
No
Trimmer out of adjustment.
L
Readjust trimmer.
per adjustment.
j
Yes
Installing another antenna to see
No
Radio is defective.
I
Repair or replace radio.
if sensitivity increases. I
I
I
Yes
Defective antenna grounding or
I
Tighten screws securing antenna
insula tion.
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or replace antenna.
b. Noisy reception
Start up engine.
Check radio for noise while
No
Crunching sound Fuel unit
Repair connection at grounded
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operating other electrical parts.
Howling sound Wiper motor
part, or replace condenser.
No
Scra tching sound Ignition coil
Whisling sound Alternator
Noise dies when antenna is re-
No
I l I
moved from radio.
I
Radio is defective.
I
-I
Repair or replace radio.
Yes
H
Loud noise from outside.
I
Radio
is in good condition.
I
I
No
Check antenna feeder and harness
I
I I
Check and repair grounded part.
I
for close arrangement.
I
Defective antenna grounding.
I I
I
Yes
Arrange feeder wiring apart from
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harness.
15-175