Engine JAC HFC4DA1-2C. Service manual — part 82
AV
AV
AV
AV Audio/
Audio/
Audio/
Audio/Video
Video
Video
Video System
System
System
System
-118-
Instruction
Instruction
Instruction
Instruction and
and
and
and Operation
Operation
Operation
Operation
Introduction
Introduction
Introduction
Introduction to
to
to
to CD
CD
CD
CD player
player
player
player function
function
function
function
13. Press it shortly.
Auto searching to low end.
Press and hold it.
Manual searching to low end.
14. Press it shortly.
Auto searching to high end.
Press and hold it.
Manual searching to high end.
15. With U disk inserted, MP3/WMA format play can
be achieved.
AV
AV
AV
AV Audio/
Audio/
Audio/
Audio/Video
Video
Video
Video System
System
System
System
-119-
Instruction
Instruction
Instruction
Instruction and
and
and
and Operation
Operation
Operation
Operation
Precautions
Precautions
Precautions
Precautions
1.
Don’t place CD player under hot environment.
2.
Don’t remove the CD player violently.
3.
Don’t use the CD player when driving on bumpy
road surface.
4.
The deformed CD cannot be applied.
AV
AV
AV
AV Audio/
Audio/
Audio/
Audio/Video
Video
Video
Video System
System
System
System
-120-
Instruction
Instruction
Instruction
Instruction and
and
and
and Operation
Operation
Operation
Operation
Precautions
Precautions
Precautions
Precautions
5.
Handle the CD properly.
6.
The CD is not allowed to be exposed under strong
sunlight.
7.
Don’t write or stick label on the CD.
8.
Keep the CD clean.
AV
AV
AV
AV Audio/
Audio/
Audio/
Audio/Video
Video
Video
Video System
System
System
System
-121-
Diagnosis
Diagnosis
Diagnosis
Diagnosis and
and
and
and Testing
Testing
Testing
Testing
Troubleshooting
Troubleshooting
Troubleshooting
Troubleshooting
1.
1.
1.
1.
Poor
Poor
Poor
Poor reception
reception
reception
reception of
of
of
of antenna.
antenna.
antenna.
antenna.
Step
Operation
Yes
No
1
Does the reception effect decrease or are there more than one radio stations cannot
be received?
Go to Step 3.
Go to Step 2.
2
Check if there are specific frequencies interfered by the electrical system of vehicle
as per procedures below:
①Turn the ignition switch to ON position.
②Select the influenced radio station.
③Remove one fuse each time until the failed one is found out.
④Perform necessary maintenance for the failed circuit.
Is the maintenance finished?
Check radio system.
—
3
①Disconnect the negative cable of battery.
②Disconnect the antenna lead connector from the radio receiver.
③Measure the resistance between antenna lead connector and battery ground cable.
Is the resistance higher than the specified?
Go to Step 4.
Go to Step 5.
4
①Disconnect the radio antenna lead connector from the windshield.
②Measure the resistance between co-axial cable shielded ground and radio
connector shielded circuit.
Is the resistance higher than the specified?
Go to Step 8.
Go to Step 10.
5
Measure the resistance of center conductor (signal input) between the antenna
connector and the radio connector.
Is the resistance higher than the specified?
Go to Step 7.
Go to Step 6.
6
Measure the resistance between center conductor (signal input) and coaxial cable
shielded ground.
Is the resistance lower than the specified?
Go to Step 9.
Go to Step 1.1
7
①Check coaxial cable and interconnection for failed connection or corrosion.
②Repair cable and interconnection when necessary.
③If the cable and interconnection are normal, please replace the coaxial cable of
antenna.
Is the maintenance finished?
Check radio system.
—
8
①Check coaxial cable ground for failed connection or corrosion.
②Repair the ground when necessary.
③Replace the coaxial cable if the ground is normal.
Is the maintenance finished?
Check radio system.
—
9
Replace the affected section of coaxial cable. If the maintenance finished?
Check radio system.
—
10
Perform maintenance for the failed connection or corrosion at the coaxial ground
cable.
Is the maintenance finished?
Check radio system.
—
11
①Check coaxial cable connector on the windshield for failed connection or
corrosion.
②Replace the good radio already known.
③Replace the windshield if the reception is not improved.
Is the maintenance finished?
Check radio system.
—
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