GEELY CK 2008 Workshop Manual

224Section 2 Audio System Connector Terminal Layout1. Connector terminal layout on wire harness
2. Connect terminal definitionTerminal
No.Func tion Wire color Condition Standard Voltage
A1 FR+ Lg The audio system is onWave form is synchronized w ith
the output sound
A2 FL+ YB The audio system is onWave form is synchronized w ith
the output sound
A3 ACC RW Ignition sw itc h turned to ACC 10
～14V
A4 B+ R Constant Status 10
～14V
A5 FR- LgR The audio system is onWave form is synchronized w ith
the output sound
A6 FL- Y The audio system is onWave form is synchronized w ith
the output sound
A7 GND B Constant Status Continuity
A8 N u ll
A9 N u ll
A1 0 T AI L G WPosition lamp switc h turned to
ON10
～14V
B1 RR+ PB The audio system is onWave form is synchronized w ith
the output sound
B2 RL+ YR The audio system is onWave form is synchronized w ith
the output sound
B3 RR- P The audio system is onWave form is synchronized w ith
the output sound
B4 N u ll
B5 N u ll
B6 RL- YW The audio system is onWave form is synchronized w ith
the output sound
C1 B+ Constant Status 10
～14V
C2 BUS Audio s ystem is On Pulse Signal
C3 GND Constant Status Continuity
C4 ACC Ignition sw itc h ACC 10
～14V
C5 Null
C6 R-OUT The audio system is onWave form is synchronized w ith
the output sound
C7 L-OUT The audio system is onWave form is synchronized w ith
the output sound
C8GND(Audio
Frequenc y)Constant Status Continuity

225Section 3 Audio System InspectionI TroubleshootingSymptom
Suspected Area
1. Ra dio a ssembly c ircuit fa ulty
2. Ra dio a ssembly
1. Ra dio a ssembly bac klight te rmina l
2. Ra dio a ssembly
1. Spea ker c irc uit
2. Ra dio a ssembly powe r c ircuit faulty
3. Ra dio a ssembly
1. Spea ker c irc uit
2. Ra dio a ssembly powe r c ircuit faulty
3. Ra dio a ssembly
1. Ante nna c ircuit
2. Ra dio a ssembly
1. Ta pe
2. Ra dio a ssembly powe r c ircuit faulty
3. Ra dio a ssembly
1. Ta pe
2. Ra dio a ssembly
1. Ta pe
2. Ra dio a ssembly
1. Ta pe
2. Ra dio a ssembly
1. Wire betwe en CD box a nd main unit
2. CD P la ye r ma in unit pow e r supply c irc uit fa ult
3. CD box
4. CD Player main unit
1. Wire betwe en CD box a nd main unit
2. CD box
3. CD
4. CD Player main unit
1. Wire betwe en CD box a nd main unit
2. CD box
3. CD
4. CD PLAYER main unit
1. Wire betwe en CD box a nd main unit
2. CD box
1. CD box
2. CD box installa tion Sound quality poor only when pla ying CD
(Volume faint)
CD sound jump Tape ja mme d, ma lfunc tion with tape
speed or auto-reverse
CD could not be inserted or ejected after
ins e r t e d.
P owe r c oming in, but CD playe r not
operating.
CD ca n not be ta ke n out Una ble to re ce ive ra dio broa dca st (poor
re ce ption)
The c a ssette c ould not be inserted or
playe d
Cassette tape will not be ejected
Sound qua lity poor only whe n playing
cassette tape Ra dio not operating when powe r switch
turned to “ON”.
The radio ba cklight doe s not light up with
t he illumina t ion s w it c h O N
Spe ake r soundless in all modes
Sound qua lity poor in all mode s (Volume
faint)

226II. Inspection1. Power switch system doesn't work
Wiring Diagram
(1) Check radio assembly (+B, ¬ACC, ¬GND)
1Check the continuity between terminals under each operating condition as shown in the table below
Standard:
2Check the voltage between terminals under each operating condition as shown in the table
Standard:
Normal:Repair or replace wire harness, connector
Abnormal:Check or replace radio assemblyMain Fuse BoxRadio and CD
BatteryFusible Link BoxIgnition SwitchTester connection Condition Standard Status
GND Consta nt Status ContinuityTeste r Connec tion Condition Sta nda rd Sta tus
+B - GND Consta nt Status 10～
14V
ACC - GND Ignition switch ACC or ON 10～
14V

2272. The radio backlight does not light up with the illumination switch ON
Wiring Diagram
(1) Check radio assembly (TAIL)
Check the voltage between terminals under each operating condition as shown in the table below.
Standard:
Abnormal:Repair or replace wire harness and connector
Normal:Check and replace radio assemblyMain Fuse BoxRadio and CDFusible Link Box
BatteryLight
Control
Switch
BatteryTeste r Connec tion Condition Sta nda rd Sta tus
TAIL - GND Combined Switch (Light switc h) 10～
14V

2283. Speaker soundless in all modes
Wiring Diagram
(1) Check LCD (Liquid Crystal Display) illumination
1Turn ignition switch to ACC
2Connect radio assembly continuity
3Switch on position lamp
Standard: Radio assembly LCD light goes on
Abnormal:Go to Step (7)
Normal:Go to Next Step
(2) Control volume and adjust volume balance
yOperate the radio assembly to adjust volume balance and find soundless speaker
Check and replace the radio assembly if all the speakers are soundless
Check and replace the soundless speakers if some of the speakers are soundlessMain Fuse BoxRadio and CDIgnition switchFusible Link BoxBatteryLeft Rear SpeakerRight Rear SpeakerLeft tweeter SpeakerRight tweeter SpeakerLeft Front Speaker
Right Front Speaker

229(3) Tweeter speaker assembly inspection
1Disconnect speaker connector
2Check resistance
Notice:
Do not remove the speaker during inspection.
Standard Value: 4Ω¸
AbnormalReplace tweeter speaker assembly
NORMALCheck wire harness and connector
(4) Check front speaker assembly
1Disconnect speaker connector
2Check resistance
Standard Value: 4Ω¸
Abnormal:Replace front speaker assembly
Normal:Check wire harness and connector
(5) Check rear speaker assembly
1Disconnect speaker connector
2Check resistance
Standard Value: 4¸
Abnormal:Replace rear speaker assembly
Normal:Check wire harness and connector
(6) Check wire harness and connector
Abnormal:Repair or replace wire harness and connector
Normal:Check and replace radio assembly
(7) Check and replace radio assembly (+B, ACC, GND)
(a) Check the continuity between terminals under each operating condition as shown in the table below.
Standard:
(b) Check the voltage between terminals under each operating condition as shown in the table below.
Standard:
Normal:Repair or replace wire harness and connector
Abnormal:Check and replace radio assemblyTester connection Condition Standard Status
GND Consta nt Status ContinuityTeste r Connec tion Condition Sta nda rd Sta tus
+B - GND Consta nt Status 10～
14V
ACC - GND Ignition switch ACC or ON 10～
14VΩ

2304. Unable to receive radio broadcast (poor reception)
(1) Check if the radio auto-research function works
Perform the radio auto-research function to see if it works
Normal:Check and replace radio assembly
Abnormal:Check the antenna for noise
(2) Check the antenna for noise
1Turn on radio to AM with the ignition switch ACC.
2Touch the antenna of the seated antenna assembly with the tip of the screwdriver. Check the speaker for
noise.
Standard: There is noise
Normal:Check and replace radio assembly
Abnormal:Check antenna assembly
(3) Check antenna assembly
1Remove the antenna plug from the antenna assembly
2Check for noise
yConnect the radio assembly connector and turn the ignition switch to ACC.
yTurn on the radio to AM
y Insert a flat pan screwdriver or metal object similar to thin wire into the hole in the antenna coaxial
cable. Check the speaker for noise.
Standard: There is noise.
Normal:Check and replace radio assembly
Abnormal:Check and replace antenna coaxial cable sub-assembly
5. Cassette tape can not be inserted or played.
(1) Check for foreign object
yCheck the radio assembly and cassette recorder for foreign object or defect.
Abnormal:Clean foreign object
Normal:Check cassette tape
(2) Check cassette tape
yCheck if the cassette tape is used to record music or sound.
Replace the tape with another tape and re-check if it is faulty.
(3) Replace it with another tape and re-check
yReplace the faulty tape with working tape to see if the same fault will re-occur.
Standard: The function is normal
Normal:The tape is faulty
Abnormal:Check if the radio auto-research function works

231(4) Check if the radio auto-research function works
yPerform the radio auto-research function to see if it works
Standard: The operation works.
Normal:Check and replace radio assembly
Abnormal:Check radio assembly (+B, ACC, GND)
(5) Check the radio assembly (+B, ACC, GND)
1Check the continuity between terminals under each operating condition as shown in the table below.
Standard:
2 Check the voltage between terminals under each operating condition as shown in the table below.
Standard:
Abnormal:Repair or replace wire harness and connector
Normal:Check and replace radio assembly
6. The tape doesn't eject
(1) Press "EJECT" and check the operation
yPress "EJECT" of the radio assembly. Check if the tape ejects.
Standard: The tape is ejected.
Abnormal:Check and replace radio assembly
Normal:Check cassette tape
(2) Check cassette tape
yCheck the ejected tape for trademark peeled off or tape box distortion or other issues
Standard: There is nothing wrong with the tape
Abnormal:There is something wrong with the tape
Normal:Replace it with another tape and re-check
(3) Replace it with another tape and re-check.
yReplace the faulty tape with working tape to see if the same fault will re-occur.
Standard: The fault is cleared
Normal:There is something wrong with the tape
Abnormal:Check and replace the recorder assemblyTester connection Condition Standard Status
GND Consta nt Status ContinuityTeste r Connec tion Condition Sta nda rd Sta tus
+B - GND Consta nt Status 10～
14V
ACC - GND Ignition switch ACC or ON 10～
14V

2327. Poor sound quality only when playing tape
(1) Replace it with another tape and re-check
yReplace the faulty tape with working tape to see if the same fault will re-occur.
Standard: The fault is cleared
Normal:There is something wrong with the tape
Abnormal:Check for foreign object
(2) Check for foreign object
yCheck the radio assembly and the cassette player for foreign objects or defects.
Abnormal:Clean foreign objects
Normal:Clean the magnet head and check operation
(3) Magnet Head Cleaning
1Raise the cassette door with your finger. Next, using a pencil or similar object, push in the guide.
2Using a cleaning pen or cotton applicator soaked in cleaner, clean the magnet head surface, pinch rollers
and tape press wheel.
3Check if the same fault reoccurs.
Normal:The magnet head is dirty
Abnormal:Check and replace radio assembly
8. Tape jammed, malfunction with tape speed or auto-reverse
(1) Check for foreign objects
yCheck the radio assembly and tape player for foreign objects and defects
Standard: No foreign objects or defects
Abnormal:Clean foreign objects
Normal:Replace it with another tape and re-check
(2) Replace it with another tape and re-check
yReplace the faulty tape with working tape (less than 90min) to see if the same fault will re-occur.
Standard: The fault is cleared.
Normal:There is something wrong with the tape
Abnormal:Clean the head
(3) Clean the magnet head
1Raise the cassette door with your finger. Next, using a pencil or similar object, push in the guide.
2Using a cleaning pen or cotton applicator soaked in cleaner, clean the magnet head surface, pinch rollers
and capstans.
3Check if the same fault reoccurs.
Normal: The head is dirty
Abnormal: Check and replace radio assembly

2339.CD can not eject after inserted
(1) Check if the CD box power supply is NORMAL
1Turn the ignition switch to ACC
2Check the continuity between the CD box terminals under each operating condition as shown in the table
below
Standard:
3 Check the voltage between terminals under each operating condition as shown in the table below.
Standard:
Normal:Replace CD, DVD box
Abnormal:Check if the head unit side C socket voltage output is NORMAL
(2) Check if the head unit side C socket voltage output is NORMAL
1Turn the ignition switch to ACC
2Check the continuity between the magnet head unit C socket terminals under each operating condition as
shown in the table below
Standard:
3 Check the voltage between terminals under each operating condition as shown in the table below.
Standard:
Normal:Replace the signal wire connecting magnet head unit and CD box
Abnormal:Check the radio assembly (+B, ACC, GND)
(3) Check the radio assembly (+B, ACC, GND)
1Check the continuity between terminals under each operating condition as shown in the table below.
Standard:Teste r Connec tion Condition Sta nda rd Sta tus
+B - GND Consta nt Status 10～
14V
ACC - GND Ignition switch ACC or ON 10～
14VTester connection Condition Standard Status
GND Consta nt Status ContinuityTester connection Condition Standard Status
GND Consta nt Status ContinuityTester connection Condition Standard Status
GND Consta nt Status ContinuityTeste r Connec tion Condition Sta nda rd Sta tus
+B - GND Consta nt Status 10～
14V
ACC - GND Ignition switch ACC or ON 10～
14V