Chery S11 / Chery QQ. Manual - part 62

             

Chery QQ Service Manual                              BCM Computer Control System   

     

 

 
(2) Mode selection (MODE) 
 
Press (3) key repeatedly and you will be able to select the function modes in the 
following order: VOL→BAS→TRE→BL→ FA→VOL.  
 
In each mode, press “+” or “-” to adjust electrical frequency for each mode. 
 
VOL 
Press “+” or “-” to adjust volume electrical frequency in the range of 0-63. 
 
BAS 
Press “+” or “-” to adjust BAS volume in the range of –7 to 7.   
 
TRE 
Press “+” or “-” to adjust the volume of left or right sound track in the electrical 
frequency range of 15L to 15R.   
 
FA 
 
Press “+” or “-” to adjust the volume of left or right sound track in the electrical 
frequency range of 15L to 15R. 
 
(3) Waveband function selection key (BD) 
 
Press (4) key repeatedly to select the functions in the following order:   
 
FM2 →FM2→ FM3→FM4 →AM1→ AM2 
 
When the desired waveband is selected, press “∧” or “∨” to select radio stations 
manually or automatically. When the desired radio station is selected, press (3) and “+” 
or “-” to adjust volume.   
 
(4) Clock function key (CLK) 
 
Press (5) key to toggle between radio frequency and clock display. In the radio mode, 
press CLK, and the clock will be displayed for five seconds before the radio mode 
returns. Press this key for a long time and simultaneously press “∧” or “∨”, and then 
the time (hour and minute) can be adjusted.   
 
(5) Automatic Preset Save key (AS) 
 
Press (6) key and hold for less than two seconds, and then the preset radio stations set by 
using this key will be displayed one by one. However, by pressing this key and hold for 
more than two seconds, you will have the character of “ATP” displayed and the device 
started to scan the radio status automatically. At the same time, six effective radio 
stations will be automatically saved and the device will start to repeat the order of the six 
stations until users select one of them by pressing a key (1-6).   
 

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Chery QQ Service Manual                              BCM Computer Control System   

     

 

(6) Save key (1-6) 
 
Radio Save key (1-6) can save more than 30 radio stations (18 FM stations and 12 AM 
stations). When users need to save radio stations, they can do so by pressing “ ” or “ ” 

∧

∧

to select a desired station and then press the key (1-6) to save it to the key.   
 
(7) Tuning key (“ ” or “ ”)

∧

∨

 

 
By pressing “ ” or “ ” for a short time, users can search for radio stations manually 

∧

∨

(AM: 9KHZ and FM: 50HZ) until a desired station is reached. Then, when pressing “ ” 

∧

or “ ” for more than one second, users can locate an ideal station. If “ ” or “ ” is 

∨

∧

∨

pressed in the process of automatic search, the radio frequency will return to the last 
station frequency status.   
 
2. Notes for radio operation   
 
(1) Turn on: When POWER key (2) is pressed and characters are displayed, the device is 
in the mode of radio.   
 
(2) Press BD key (4) to select FM2, FM2, FM3, AM1 and AM2.   
 
(3) Tuning key: Pressing “ ” or “ ” to manually search for station

∧

∨

s upward and 

downward. Press the key for more than one second, and then the automatic search will be 
triggered and continue until the desired station is selected.   
 
(4) Manual station saving: Select a desired wave band station to save it to one of the six 
Save keys (1-6). Press this key (1-6) for two seconds, and then the selected station will 
be saved to it. The six keys can save one of the FM1, FM2, FM3, AM1 and AM2 
stations.  
 
(5) Audio adjustment: Press “MODE” key to display “VOL” and then press “+” or “-” 
within five seconds to adjust volume. If “+” or “-” is pressed within five seconds, the 
display will return to the main display status. This method applies to BAS, TRE, BL and 
FA, too.   
 
(6) Automatic scanning save (six): After pressing this key for about two seconds, users 
can receive a signal that is used to confirm memory and displays and automatically saves 
six radio stations with strong radio signals. Pressing this key or one of the six numeric 
keys will stop this function. If the six saved stations cannot be found, these stations will 
disappear.  
 
(7) Stereo: ST9 will be automatically displayed when a stereo station is received (stereo 
indication) 
 
(8) Scan and save programs: By browsing the preset keys (1-6), the saved stations can be 
retrieved.  
 
3. Notes for Tape player operation   
 

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Chery QQ Service Manual                              BCM Computer Control System   

     

 

(1) The turn-on operation is the same as in the radio mode.   
 
(2) Insert gently a cassette with the open side on the right into the compartment. When 
the display shows TAPE and “◄” or “►”, the device is in normal play status. 
 
(3) Volume adjustment: the operation is the same as in the radio mode. 
 
(4) Select songs: Press FF “►►” or FW “◄◄” to find desired programs quickly. 
 
(5) Playing direction conversion: Press FF “►►” and FW “◄◄” at the same time to 
reverse the playing direction.     
 
(6) Radio and player conversion: Just by inserting a cassette gently into the compartment 
will change the device from the status of radio to that of music player. Press Reject (12) 
to remove the cassette, and then the device changes to the status of radio.   
 
Press FF or RW keys (when the operations of FF or RW complete, the device will 
automatically change from the status of radio to that of player).   
 

 

II. CD player panel (Option)(illustrated just by using VDO CD player and please 
refer to the supplied specifications for other players) 

 

Panel of VDO Audio System (Option)

 

 

Notes for function keys     
 
1 Preset Key 1            RANDOM: CD player starts/stops random playing   
2 Preset Key 2 
3 Preset Key 3   
4 Source: sound source 
5 Sound: Press for a short time: sound effect mode    Select: Press for a long time: Sound 

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Chery QQ Service Manual                              BCM Computer Control System   

     

 

setting mode   

6 MUTE 
7 Volume 
8 Power switch   
9 Display 
10 BAND   

SCAN: Radio frequency scanning/CD player song scanning   

◄ ►: High-end and low-end scanning (playing) 

 

Previous/next song (CD cassette)

 

 

Automatic music scan system 
 
11 AST: automatic saving system 
12. Preset key 6  DISC-: Choose forward discs    13. Preset key 5 
14 Preset key 4   

DISC+: Choose backward discs 

15 Fast Forward ►► 
16 Rewind 
17 Reject ▲ Press for a short time to reverse the cassette        Press for a long time to 
reject the cassette 
18 Cassette compartment   
 
Note: VDO CD player is optional. See supplied manuals for the information on use and 
maintenance of VDO CD players.   
 
III. Audio system maintenance   
 
1. Before the radio maintenance, shut off the ignition switch and disconnect the battery 
negative wire. 
 
2. Common problems and troubleshooting     
 

Symptom Possible 

Cause 

Solution 

 

Fuse broken 

Replace it with another fuse of 

the same type 

The main processor fails 

to be turned on 

Wrong wiring 

Check the wiring against the 

wiring diagram 

Speakers and wires

Check connections and speakers

The main processor 

works but without sound 

output 

Main processor out 

of order 

Consult a professional radio 

technician  

External signal 

antenna 

Check the connection between 

the antenna and main processor or 

amplifier power.   

Poor sound quality of the 

main processor, with 

interference 

Dirty magnetic 

tapes and heads 

Clean magnetic heads 

Tapes damaged 

Replace the broken cassettes 

Cassettes blocked 

Main processor 

failure 

Consult a professional radio 

technician 

 
 
 
 

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