273 

 
No.197 CD-player/radio memory function malfunction   

Malfunction Cause 

Solution 

①

Power outputline B+ (memory line) and 

ACC (ignition line) wrong connected to 
each other 

①

Check power source outputline B+ (memory 

line) and ACC (ignition line), whether they are 
wrong connected, and correct it when necessary. 

②

Power outputline B+ (memory line) 

connected on ACC (ignition line ) 

②

Check power source output line B+ (memory 

line) whether it is connected on ACC (ignition 
line), and correct it when necessary. (Note: please 
connect according the method showing on 
nameplate) 

CD-player/radio memory 
function malfunction 

③

CD-player/radio inner memory circuit 

short or open 

Replace CD-player/radio assembly. ` 

 

 

No. 198 CD-player/radio no signal   

Malfunction Cause 

Solution 

①

Antenna cable disconnected 

①

Check antenna cable whether it is disconnected 

②

Dirt on antenna cable conducting point 

②

Clean conducting point with special cleaning 

solution 

③

Antenna cable deformed and results poor 

conduct  

③

Replace with new antenna assembly of same 

specification  

CD-player/radio no signal 

④

CD-player/radio inner antenna cable 

short circuit, open circuit 

④

Replace CD-player/radio assembly 

 

Connect B+ (memory line) back to memory power end 

CD-player/radio memory function failure 

Power outputline B+ (memory line) and ACC 
(ignition line) wrong connected to each other 

Power outputline B+ (memory line) 

connected on ACC (ignition line ) 

CD-player/radio inner memory short or 

open circuit 

Correct B+ (memory line) and ACC (ignition line) 

Replace CD-player/radio assembly 

Normal 

Normal 

Abnormal 

Abnormal 

Abnormal 

 
 

 

 

274 

 

No.199 CD-player/radio sound distortion at large volume   

Malfunction Cause 

Solution 

Loudspeaker retaining screw loose 

Check loudspeaker retaining screws whether they
are loose, and tighten them when necessary. 

Loudspeaker diaphragm deglue 

Check loudspeaker diaphragm whether it is deglue,
and repair or replace loudspeaker when necessary.

Loudspeaker damage or disable to sustain
high power 

Replace loudspeaker or turn down the volume 

A loudspeaker rectifier burnt 

Replace damaged loudspeaker 

CD-player/radio sound 
distortion at large volume

 

CD-player/radio inner short or open circuit

Replace CD-player/radio assembly； 

 

Abnormal 

CD-player/radio no signal 

A

ntenna

 cable disconnected 

Dirts on 

antenna

 cable conducting point 

Antenna

 cable deformed and results poor contact 

CD-player/radio inner 

antenna

 cable short circuit 

Check 

antenna

 cable whether it is disconnected 

Clean conducting point with special cleaning solution

Normal 

Normal 

Normal 

Abnormal 

Abnormal 

Abnormal 

Replace 

antenna

 assembly with same specification 

Replace CD-player/radio assembly 

Loudspeaker retaining screw loose 

CD-player/radio sound distortion 

at large volume 

Loudspeaker damaged or disable to sustain 

high power 

Replace loudspeaker or turn down the 

volume 

Tighten the screws 

CD-player/radio inner short or open circuit 

Replace CD-player/radio assembly 

Normal 

Abnormal 

Abnormal 

Abnormal 

 
 

 

 

275 

 

No. 200 CD-player/radio tuner can’t stop   

Malfunction Cause 

Solution 

①

Antenna cable disconnected 

①

Check antenna cable whether it is disconnected

②

Dirt on antenna cable conducting point 

Clean conducting point with special cleaning

②
solution. (Note: May clean with soft    cloth, but neve
use solvents such as benzene or alcohol ) 

③

Antenna cable deformed and results poor

conduct 

Replace 

③

antenna assembly of same specification

CD-player/radio tuner 

can’t stop

 

④

CD-player/radio inner antenna cable short

or open circuit 

Replace CD

④

-player/radio assembly。 

 

Antenna

 cable disconnected 

CD-player/radio tuner can’t stop 

Dirts on 

antenna

 cable conducting point 

Clean or replace 

antenna

 cable with same specification 

Connect 

antenna

 cable 

Antenna

 cable deformed and results poor 

conduct 

Replace new atenna cable of same specification 

CD-player/radio inner 

antenna

 cable short 

or open circuit 

Replace CD-player/radio assembly 

Normal 

Normal 

Normal 

Abnormal 

Abnormal 

Abnormal 

Abnormal 

 
 

 

 

276 

 

No. 201 CD-player/radio has noise when receiving signal   

Malfunction Cause 

Solution 

Antenna cable earth lead loose or
poor contact 

Check antenna cable earth lead whether it is loose, replace i
of same specification or clean earth lead conducting point with
special clean solution if necessary. 

Poor local radio signal 

Change channel and test 

Antenna cable earth lead deformed
and results poor conduct 

Replace with new antenna cable of same specification 

Antenna retaining screw loose 

Check antenna cable retainig screws whether they are loose,
and tighten them if necessary. 

Loudspeaker malfunction 

Check loudspeaker, circuit and connector, and remove the
malfunctions according to different appearances. 

CD-player/radio has 

noise when receiving 

signal

 

CD-player/radio inner malfunction 

Replace CD-player/radio assembly 

 

Replace 

antenna

 cable with same 

specification 

Antenna

 cable earth lead loose or 

poor contact abnormal 

CD-player/radio has noise when 

receiving signal 

Poor local radio signal 

Loudspeaker malfuction 

Antenna

 retaining screw loose 

Change channel and test 

Check and maintain loudspeaker and circuit 

Tighten the screws 

CD-player/radio inner malfunction 

Replace CD-player/radio assembly 

Normal 

Normal 

Normal 

Normal 

Abnormal 

Abnormal 

Abnormal 

Abnormal 

Abnormal