Chrysler Stratus LHD 1997, Interactive Electronic Service Manual

Page: 401 / 1534

DIAGNOSIS AND TESTING
AUDIO DIAGNOSTIC TEST PROCEDURES
CAUTION: The CD player will only operate between
approximate temperatures of -23°C and +65°C (-10°F
and +145°F).
Whenever a radio malfunction occurs;
(1) First check FUSES in the Fuse Block:
(a) Fuse 5, Memory feed and the Power Antenna
(if equipped)
(b) Fuse 7, Illumination
(c) Fuse 8, Power Amplifier
(d) Fuse 14, Ignition feed
NOTE: The vehicles are shipped with the INTERIOR
LAMP fuse disconnected.
(2) Verify, the radio wire harness are properly con-
nected before starting normal diagnosis and repair
procedures. Refer to Audio Diagnostic Charts and/or
Group 8W, Wiring Diagrams.
DIAGNOSTIC CONDITIONS
NOISE DISTORTION IN ALL SPEAKERS
Does the distortion occur through all operations:
•
AM and FM stations
•
Cassette tape
•
Compact disc
If not, check for radio interference, damaged tape
or disc that may be causing the distortion. Refer to
Sound Systems Operating Instructions in the Owners
Manual for cleaning procedures of the cassette tape
player.
•
Check battery voltage, for 11 Volts or more
•
Check amplifier connectors, and wires for proper
connection
•
If OK, check radio, refer to Radio Diagnosis
•
If OK, replace amplifier
ELECTRICAL NOISE DISTORTION ONE
SPEAKER
•
Remove output signal connector from amplifier
and check for short to ground on the speaker with
the distortion. Refer to Group 8W, Wiring Diagrams
for the appropriate pin numbers.
•
If shorted to ground, disconnect speaker connec-
tor and recheck from the amplifier for short to
ground.
•
If still shorted to ground, repair wires. Not
shorted to ground, replace speaker.
•
Not shorted to ground, check speaker resistance
at amplifier connector for two to five ohms.
•
If resistance is OK, refer to Radio Diagnosis. If
radio checks OK, replace amplifier.
•
If resistance is less than two ohms, replace
speaker. If resistance is OK, repair wires
MECHANICAL NOISE DISTORTION
•
Check trim for loose parts, and speaker attach-
ments for buzzes
•
Remove speaker that is still connected and lis-
ten for distortion. If distortion remains, replace
speaker.
ONE SPEAKER NON-OPERATIVE
•
Remove output signal connector from amplifier
and check for two to five ohms resistance to the non-
operative speaker. Refer to Group 8W, Wiring Dia-
grams for the appropriate pin numbers.
•
If resistance is less than two ohms, test speaker
for resistance.
•
If OK, repair wire. If not OK, replace speaker.
ALL SPEAKERS NON-OPERATIVE
•
Check radio for being ON, are the display lights
on
•
Radio not ON, refer to Radio Diagnosis
•
Check fuses, amplifier connectors and wires for
proper connection
•
Check for good ground
•
Check amplifier, for battery voltage and
ON/OFF voltage
(1) Battery voltage OK and NO voltage at the
ON/OFF terminal, check for short or open in the
ON/OFF circuit.
(2) ON/OFF voltage OK, and NO battery voltage,
check for short or open in battery circuit.
(3) Prior to replacing amplifier check fuse to the
cigar lighter and horn. If not OK, replace fuse. If fuse
blows again disconnect amplifier B+ wire connector.
Refer to Group 8W, Wiring Diagrams for the proper
connector.
(4) If fuse still blows the problem is not the ampli-
fier. If fuse does not blow replace the amplifier.
(5) If shorted or open circuit repair as necessary.
NO BASS FREQUENCIES, HIGH AND MID
FREQUENCIES OK
•
Check fuses, amplifier connectors and wires for
proper connection
•
Check for good ground
•
Check amplifier for battery voltage, and
ON/OFF voltage
(1) Battery voltage OK and NO voltage at the
ON/OFF terminal, check for short or open in the
ON/OFF circuit.
(2) ON/OFF voltage OK, and NO battery voltage,
check for short or open in battery circuit.
(3) Prior to replacing amplifier, check fuse to the
cigar lighter and horn. If not OK, replace fuse. If fuse
blows again, disconnect amplifier B+ wire connector.
8F - 2 AUDIO SYSTEMS
JA