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
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 – 11
DAEWOO V–121 BL4
GENERAL DESCRIPTION
AND SYSTEM OPERATION
STEREO CASSETTE AM/FM RADIO
There are three audio systems offered. The stereo digital
logic cassette AM/FM radio with electronic tape ejection
is offered in standard and deluxe models. Both models
feature RDS (radio data system) which automatically se-
lects the best station within the chain of RDS stations cur-
rently being listened to. A trunk mounted CD changer is
also available.
AUDIO SCURITY SYSTEM
The audio security system is activated whenever the audio
system circuit is disconnected from the battery. A four–
digit security code must be entered in order for the audio
system to resume functioning. The security code is
stamped on a card located in the vehicle (usually in the
glove box). The following security code entering proce-
dure must be used to deactivate the audio security sys-
tem:
1. After connecting the audio security system to the
battery, ”CODE” will flash on the display.
2. Enter the proper security number into the unit, us-
ing the preset buttons No. 1 through 8.
3. For example, if the security number is ”1234”:
a. Press the preset button No. 1. ”CODE” will
disappear and ”1 – – – ” will appear on the dis-
play.
b. Press the preset button No. 2, and ”12 – – ”
will appear.
c. Press the preset button No. 3, and ”123– ” will
appear.
d. Press the preset button No. 4, and ”1234” will
appear and flash three times.4. The audio system will function and will transfer to
the radio.
If the incorrect security number is entered into the unit,
”Err” will appear followed by ”CODE” and there will be sev-
eral audible beeps. If this happens, repeat the security en-
tering procedure beginning with Step 2.
SPEAKERS
All audio systems use eight speakers, four speakers and
four tweeters mounted in each door.
TAPE PLAYER AND CASSETTE
CARE
The head and the capstan are the two parts of the tape
player that should be cleaned. This service should be per-
formed every 100 hours of cassette operation.
To clean the head and the capstan, use a cotton swab
dipped in rubbing alcohol.
A cassette cleaning kit may also be used to clean the head
and the capstan. Follow the cleaning kit instructions to
clean the tape player.
Do not touch the tape head with magnetized tools. If the
head becomes magnetized, it will degrade cassettes
played in the player. No service is performed on the cas-
settes. The cassette manufacturer handles warranties of
the cassettes. Store cassettes away from extreme heat
and direct sunlight.
COMPACT DISC CARE
Handle discs carefully. Store the discs in protective cases
away from the sun, heat, and dust. If the surface is soiled,
dampen a clean, soft cloth in a solution of mild neutral de-
tergent and wipe the disc clean.
9G – 10IINTERIOR TRIM
DAEWOO V–121 BL4
4. Install the screws to the rear portion of the floor
console.
5. Connect the negative battery cable.
6. Install the glove box, instrument panel lower cover,
cigar lighter trim panel and stereo cassette player.
7. Install the console cover.
FLOOR CARPET
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the rear seat cushion. Refer to Section 9H,
Seats.
3. Remove the left and the right rear rocker trim pan-
els. Refer to ”Rear Rocker Trim Panel” in this sec-
tion.
4. Remove the bolts and the left and the right lower
front seat belt anchors from the B–pillar.
5. Remove the left and the right front rocker trim pan-
els.
6. Remove the left and the right lower B–pillar trim
panels. Refer to ”Lower B–Pillar Trim Panel” in this
section.
7. Remove the front seats. Refer to Section 9H,
Seats.
8. Remove the left and the right kick panels. Refer to
”Kick Panel” in this section.
9. Remove the floor console. Refer to ”Floor Console”
in this section.
10. Remove the gearshift housing bolts and nuts and
reposition the gearshift housing.
11. Remove the floor carpet.
Installation Procedure
1. Install the floor carpet.
2. Install the gearshift housing with the bolts.
Tighten
Tighten the gearshift housing bolts and nuts to 8 NSm
(70 lb–in).