audio DAEWOO LACETTI 2004 Service Service Manual

9E – 30IINSTRUMENTATION/DRIVER INFORMATION
DAEWOO V–121 BL4
GENERAL DESCRIPTION
AND SYSTEM OPERATION
CIGAR LIGHTER
The cigar lighter is located in the front portion of the floor
console. To use the lighter, push it in completely. When the
lighter is hot, it will release itself from contact with the heat-
ing element. The lighter and the heating element can be
damaged if the lighter is not allowed to release itself fully
from the heating element.
ASHTRAY
The ashtray is located below the audio system. To access
the ashtray, pull it out from the center console. The ashtray
lamp will go on when the parking lamps or the headlamps
are turned on.
INSTRUMENT PANEL VENTS
The center and the side vents in the instrument panel can
be adjusted up and down and from side to side. The side
vents can also be aimed toward the side windows in order
to defog them.
GLOVE BOX
The glove box can be opened by pulling up on the latch
handle. The glove box must be removed in order to gain
access to the passenger’s side airbag module.
DIGTAL CLOCK
The digital clock is located in the instrument panel, above
the audio system. The clock is capable of a 12–hour or a
24–hour display.
INSTRUMENT CLUSTER
The instrument cluster is located above the steering col-
umn and in the instrument cluster trim panel. The instru-
ment cluster contains the instruments that provide the
driver with vehicle performance information. The instru-
ment cluster contains a speedometer, an odometer, a trip
odometer, a temperature gauge, a fuel gauge, and several
indicator lamps. For replacement of the indicator lamp
bulbs contained in the instrument cluster, refer to ”Instru-
ment Cluster Indicator Lamps Specifications” and”Instru-
ment Cluster Indicator Lamps” in this section.
SPEEDOMETER/ODOMETER/TRIP
ODOMETER
The speedometer measures the speed of the vehicle in
km/h (mph in some countries). It consists of an instrument
cluster gauge connected to the vehicle speed sensor
(VSS) on the transaxle output shaft.The odometer measures in kilometers (miles in some
countries) the total distance the vehicle has traveled since
it was manufactured. It consists of an instrument cluster
gauge connected to the VSS on the transaxle output shaft.
The trip odometer measures the distance the vehicle has
traveled since the odometer was last reset. It consists of
an instrument cluster gauge connected to the VSS on the
transaxle output shaft. The trip odometer can be reset to
zero at any time so that the driver can record the distance
traveled from any starting point.
FUEL GAUGE
The fuel gauge consists of an instrument cluster gauge
connected to a sending unit in the fuel tank.
The fuel gauge indicates the quantity of fuel in the tank
only when the ignition switch is turned to ON or ACC.
When the ignition is turned to LOCK or START, the pointer
may come to rest at any position.
TEMPERATURE GAUGE
The temperature gauge consists of an instrument cluster
gauge connected to a temperature sensor that is in con-
tact with the circulating engine coolant.
The temperature gauge indicates the temperature of the
coolant. Prolonged driving or idling in very hot weather
may cause the pointer to move beyond the center of the
gauge. The engine is overheating if the pointer moves into
the red zone at the upper limit of the gauge.
INSTRUMENT CLUSTER INDICATOR
LAMPS
The instrument cluster contains indicator lamps that indi-
cate the functioning of certain systems or the existence of
potential problems with the operation of the vehicle. The
indicator lamps are replaceable. For replacement of the in-
dicator lamps contained in the instrument cluster, refer to
”Instrument Cluster Indicator Lamps Specifications”
and”Instrument Cluster Indicator Lamps” in this section.
CHIME MODULE
The chime module is located above the instrument panel
fuse block and will sound in order to bring attention to one
or more of the following conditions:
S The lamps are on, the door is ajar, and the ignition
switch is not in ACC, ON, or START.
S The seat belt is unbuckled when the ignition switch
is in ON or START.
S The door is open when the ignition switch is in ON
or START.
S The key is left in the ignition switch when the igni-
tion is in LOCK and the door is open.

SECTION : 9F
AUDIO SYSTEMS
CAUTION : Disconnect the negative battery cable before removing or installing any electrical unit or when a tool
or equipment could easily come in contact with exposed electrical terminals. Disconnecting this cable will help
prevent personal injury and damage to the vehicle. The ignition must also be in LOCK unless otherwise noted.
TABLE OF CONTENTS
SPECIFICATIONS9F–1 . . . . . . . . . . . . . . . . . . . . . . . . . .
Fastener Tightening Specifications 9F–1. . . . . . . . . . .
SCHEMATIC AND ROUTING DIAGRAMS9F–2 . . . . .
Audio System Circuit 9F–2. . . . . . . . . . . . . . . . . . . . . . .
DIAGNOSIS9F–3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stereo Cassette AM/FM Radio 9F–3. . . . . . . . . . . . . .
Speakers 9F–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MAINTENANCE AND REPAIR9F–7 . . . . . . . . . . . . . . .
ON–VEHICLE SERVICE 9F–7. . . . . . . . . . . . . . . . . . . . .
Stereo Cassette AM/FM Radio 9F–7. . . . . . . . . . . . . .
Audio Remote Controller 9F–7. . . . . . . . . . . . . . . . . . . . Notchback CD Changer 9F–8. . . . . . . . . . . . . . . . . . . .
Door Speakers 9F–8. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tweeter Speakers 9F–9. . . . . . . . . . . . . . . . . . . . . . . . .
Glass Antenna Module 9F–9. . . . . . . . . . . . . . . . . . . . .
Hatchback Windshield Antenna Module 9F–10. . . . . .
GENERAL DESCRIPTION AND SYSTEM
OPERATION9F–11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stereo Cassette AM/FM Radio 9F–11. . . . . . . . . . . . . .
Audio Scurity System 9F–11. . . . . . . . . . . . . . . . . . . . . .
Speakers 9F–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tape Player and Cassette Care 9F–11. . . . . . . . . . . . . .
Compact Disc Care 9F–11. . . . . . . . . . . . . . . . . . . . . . . .
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
ApplicationNSmLb–FtLb–In
Door Speaker Screws2–18
Rear Speaker Screws2–18
Glass Antenna Screws2–18

9F – 2IAUDIO SYSTEMS
DAEWOO V–121 BL4
SCHEMATIC AND ROUTING DIAGRAMS
AUDIO SYSTEM CIRCUIT

AUDIO SYSTEMS 9F – 3
DAEWOO V–121 BL4
DIAGNOSIS
STEREO CASSETTE AM/FM RADIO
CD Player Inoperative, AM/FM Functions OK
StepActionValue(s)YesNo
1Using a good–quality CD, determine if the CD player
performs poorly or is inoperative.
Does the CD player function correctly?–Go to Step 2Go to Step 3
2Inform the customer that the problem is with the CD,
not the CD player.
Has the customer been informed?–System OK–
3Check the CD player for obstructions behind the
tape door.
Is an obstruction found?–Go to Step 4Go to Step 6
4Check to see if the obstruction can be removed.
Can the obstruction be removed?–Go to Step 5Go to Step 6
5Remove the obstruction.
Is the repair complete?–System OK–
6Replace the CD player.
Is the repair complete?–System OK–
AM/FM Cassette Radio Inoperative
StepActionValue(s)YesNo
1Check fuses F23 and F17.
Are fuses F23 and F17 blown?–Go to Step 2Go to Step 3
21. Check for a short circuit and repair it, if neces-
sary.
2. Replace the blown fuses.
Is the repair complete?–System OK–
31. Use a voltmeter to test for battery voltage at
fuse F23.
2. Turn the ignition ON and test for battery volt-
age at fuse F17.
Does the battery voltagematch the specified value at
fuses F23 and F17?11–14 vGo to Step 5Go to Step 4
4Repair the power supply circuit to the fuses.
Is the repair complete?–System OK–
51. Remove the cassette radio.
2. Turn the ignition ON.
3. Use a voltmeter to test for battery voltage at
the audio system connector terminals 4 and 5.
Does the battery voltage match the specified value
at both terminals?11–14 vGo to Step 7Go to Step 6
6Repair the open circuit between the audio system
connector and the fuse.
Is the repair complete?–System OK–
7Use an ohmmeter to test the ground circuit at the au-
dio system connector terminal 14.
Does the resistancematch the specified value?
0 WGo to Step 9Go to Step 8

9F – 4IAUDIO SYSTEMS
DAEWOO V–121 BL4
StepNo Yes Value(s) Action
8Repair the open ground circuit between the audio
system connector and ground G204.
Is the repair complete?–System OK–
9Replace the cassette radio.
Is the repair complete?–System OK–
Cassette Player Inoperative, AM/FM Functions OK
StepActionValue(s)YesNo
1Verify the customer complaint.
Does the cassette player destroy tapes?–Go to Step 5Go to Step 2
2Using a good–quality tape, determine whether the
cassette player performs poorly or is inoperative.
Does the cassette player perform poorly?–Go to Step 5Go to Step 3
3Check the cassette player for obstructions behind
the tape door.
Is an obstruction found?–Go to Step 4Go to Step 8
4Check to see if the obstruction can be removed us-
ing gentle force.
Is the obstruction removed?–Go to Step 5Go to Step 6
5Clean the cassette player head, the capstan, and the
drive system.
Does the tape play properly?–Go to Step 7Go to Step 6
6Replace the cassette radio.
Is the repair complete?–System OK–
7Check the cassette player for normal operation.
Is the repair complete?–System OK–
8Advise the owner of a defective or worn tape.
Is the repair complete?–System OK–
AM Does Not Work, FM and Cassette OK
StepActionValue(s)YesNo
1Check the audio system for normal operation.
Is AM inoperative and the rest of the system operat-
ing properly?–Go to Step 2System OK
2Replace the radio.
Is the repair complete?–System OK–

AUDIO SYSTEMS 9F – 5
DAEWOO V–121 BL4
FM Radio Does Not Work, AM and Cassette OK
StepActionValue(s)YesNo
11. Unplug the antenna cable from the antenna.
2. Connect the test antenna to the antenna cable.
3. Check the FM radio reception.
Is the FM radio operating properly?–Go to Step 2Go to Step 3
2Replace the antenna.
Is the repair complete?–System OK–
31. Remove the cassette radio from the instrument
panel.
2. Unplug the antenna cable from the audio sys-
tem.
3. Plug the test cable into the audio system.
4. Check the FM radio reception.
Is the FM radio operating properly?–Go to Step 4Go to Step 5
4Replace the antenna cable between the audio sys-
tem and the antenna.
Is the repair complete?–System OK–
5Replace the cassette radio.
Is the repair complete?–System OK–
SPEAKERS
Front Speakers Distorted or Inoperative, Rest of Audio System OK
StepActionValue(s)YesNo
11. Turn the ignition and the radio ON.
2. Check for distorted or inoperative front speak-
ers using the fader and the balance controls
with all of the sources (AM, FM, tape, CD).
Are the front speakers distorted?–Go to Step 2Go to Step 4
2Check the speaker and the door area for damage,
rattles, or vibration.
Is there anything loose or in the way of the speaker
causing the distortion?–Go to Step 3Go to Step 4
3Make the necessary repairs to secure the compo-
nent causing the distortion.
Is the repair complete?–System OK–
41. Remove the front speakers and disconnect the
speaker connector.
2. Using an ohmmeter, test the speaker wires for
a short to ground.
Does the ohmmeter show the specified value?Go to Step 6Go to Step 5
5Repair the short circuit between the front speaker
connector and the radio connector.
Is the repair complete?–System OK–
6Substitute a known good speaker for the speaker
causing the distortion.
Is the distortion eliminated?–Go to Step 7Go to Step 8

9F – 6IAUDIO SYSTEMS
DAEWOO V–121 BL4
StepNo Yes Value(s) Action
7Replace the speaker.
Is the repair complete?–System OK–
8Replace the cassette radio.
Is the repair complete?–System OK–
Rear Speakers Distorted or Inoperative, Rest of Audio System OK
StepActionValue(s)YesNo
11. Turn the ignition and the radio on.
2. Check for distorted or inoperative rear speak-
ers using the fader and the balance controls
with all the of the sources (AM, FM, tape, CD).
Are the rear speakers distorted?–Go to Step 2Go to Step 4
2Check the speakers, the rear deck, and the trunk
area for damage, rattles, or vibration.
Is there anything loose or in the way of the speaker
causing the distortion?–Go to Step 3Go to Step 4
3Make the necessary repairs to secure the compo-
nent causing the distortion.
Is the repair complete?–System OK–
41. Disconnect the rear speakers.
2. Using an ohmmeter, test the speaker wires for
a short to ground.
Does the ohmmeter show the specified value?Go to Step 6Go to Step 5
5Repair the short circuit between the rear speaker
connector and the radio connector.
Is the repair complete?–System OK–
6Substitute a known good speaker for the speaker
causing the distortion.
Is the distortion eliminated?–Go to Step 7Go to Step 8
7Replace the speaker.
Is the repair complete?–System OK–
8Replace the audio system.
Is the repair complete?–System OK–

AUDIO SYSTEMS 9F – 7
DAEWOO V–121 BL4
MAINTENANCE AND REPAIR
ON–VEHICLE SERVICE
STEREO CASSETTE AM/FM RADIO
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the center molding. Refer to Section 9E,
Instrumentation/Drive Information.
3. Remove the screws and the audio system.
4. Disconnect the audio system electrical connectors.
Installation Procedure
1. Connect the audio system electrical connectors.
Notice : Dissimilar metals in direct contact with each other
may corrode rapidly. Make sure to use the correct fasten-
ers to prevent premature corrosion.
2. Install the audio system with the screws.
Tighten
Tighten the audio system screws to 4 NSm (35 lb–in).
3. Install the center molding. Refer to Section 9E, In-
strumentation/Drive Information.
4. Connect the negative battery cable.
AUDIO REMOTE CONTROLLER
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the screws and the audio remote control-
ler.

9F – 8IAUDIO SYSTEMS
DAEWOO V–121 BL4
Installation Procedure
1. Install the audio remote controller with the screws.
2. Connect the negative battery cable.
NOTCHBACK CD CHANGER
Removal Procedure
1. Disconnect the negative battery cable.
2. Disconnect the CD changer electrical connector.
3. Remove the bolts and the CD changer.
Installation Procedure
1. Install the CD changer with the bolts.
2. Connect the CD changer electrical connector.
3. Connect the negative battery cable.
DOOR SPEAKERS
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the door trim panel. Refer to Section 9G,
Interior Trim.
3. Disconnect the electrical connector.
4. Remove the screws and the door speaker.

AUDIO SYSTEMS 9F – 9
DAEWOO V–121 BL4
Installation Procedure
Notice : Dissimilar metals in direct contact with each other
may corrode rapidly. Make sure to use the correct fasten-
ers to prevent premature corrosion.
1. Install the door speaker with the screws.
Tighten
Tighten the door speaker screws to 2 NSm (18 lb–in).
2. Connect the electrical connector.
3. Install the door trim panel. Refer to Section 9G, In-
terior Trim.
4. Connect the negative battery cable.
TWEETER SPEAKERS
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the tweeter speaker by prying the tweeter
speaker out of the door trim panel.
3. Disconnect the electrical connector.
Installation Procedure
1. Connect the electrical connector.
2. Install the tweeter speaker into the door trim panel.
3. Connect the negative battery cable.
GLASS ANTENNA MODULE
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the C–pillar trim panel. Refer to Section
9G, Interior Trim.
3. Disconnect the electrical connector.
4. Remove the screws and the glass antenna module.