Daewoo Nubira User Manual page 351

9F – 6IAUDIO SYSTEMS
Step
5 Repair the short circuit between the rear speaker
connector and the radio connector.
Is the repair complete?
6 Substitute a known good speaker for the speaker
causing the distortion.
Is the distortion eliminated?
7 Replace the speaker.
Is the repair complete?
8 Replace the radio.
Is the repair complete?
Step
1 Check fuse EF29.
Is fuse EF29 blown?
2
1. Check for a short circuit and repair if neces-
sary.
2. Replace the blown fuse.
Is the repair complete?
3 Use a voltmeter to test for battery voltage at fuse
EF29.
Does the battery voltage match the specified value?
4 Repair the open power supply circuit to fuse EF29.
Is the repair complete?
5 Use a voltmeter to test for battery voltage at power
antenna connector terminal 1.
Does the battery voltage match the specified value?
6 Repair the open circuit between power antenna con-
nector terminal 1 and fuse EF29.
Is the repair complete?
7 Use an ohmmeter to test the ground circuit at power
antenna connector terminal 2.
Does the resistance match the specified value?
8 Repair the open ground circuit between power an-
tenna connector terminal 2 and ground G303.
Is the repair complete?
9
1. Turn the ignition ON.
2. Turn the radio ON.
3. Use a voltmeter to test for battery voltage at
power antenna connector terminal 3.
Does the battery voltage match the specified value?
10 Replace the power antenna.
Is the repair complete?
11
1. Turn the ignition ON.
2. Turn the radio ON.
3. Use a voltmeter to test for battery voltage at
radio terminal 12.
Is the repair complete?
Action
ANTENNA
Power Antenna Does Not Work
Action
Value(s) Yes
System OK
Go to Step 7
System OK
System OK
Value(s) Yes
Go to Step 2
System OK
11–14 v Go to Step 5
System OK
11–14 v Go to Step 7
System OK
0 – 0.5 W
Go to Step 9
System OK
11–14 v Go to Step 10
System OK
11–14 v Go to Step 12
No
Go to Step 8
No
Go to Step 3
Go to Step 4
Go to Step 6
Go to Step 8
Go to Step 11
Go to Step 13
DAEWOO V–121 BL4