Radio Diagnosis - Dodge D150 1990 Service Manual

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RADIO, ANTENNA AND SPEAKERS 8F - 3
RADIO DIAGNOSIS
RADIO
INOPERATIVE
BLOWN FUSE
ANTENNA
OPEN OR SHORTED
T
FAULTY RECEIVER
POWER CONNECTION
OR SPEAKER
CONNECTIONS
T
FAULTY SPEAKER
FAULTY RADIO*
RADIO NOISE
OUTSIDE ELECTRICAL
INTERFERENCE
CHECK ANTENNA
MOUNTING AND
CONNECTIONS
NOISE DOES NOT
VARY WITH
ENGINE SPEED
±
CHECK ACCESSORY
ELECTRICAL MOTORS,
SOLENOIDS AND
SWITCHES AS
RADIO FREQUENCY
NOISE SOURCES
FAULTY RADIO*
RADIO
RECEPTION WEAK
11
SHORTED
ANTENNA LEAD-IN
FAULTY RADIO*
NOISE VARIES
WITH
ENGINE SPEED
RADIO RECEPTION
DISTORTED
i
J L
C H E C K
S E C O N D A R Y
IGNITION
FAULTY SPEAKER
FAULTY RADIO*
*REFER REPAIR OF
RADIO TO AN
AUTHORIZED SERVICE
STATION
LOOSE POWER
OR ANTENNA
CONNECTIONS
LOOSE RADIO
(POOR GROUND)
MOUNTING
BROKEN OR
SHORTED ANTENNA
LEAD-IN WIRE
FAULTY
SPEAKER
FAULTY RADIO*