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9

OPERATION 

BASIC OPERATION

SWITCHING ON/OFF THE UNIT   

Press 

PWR/MUT

button (23) to switch on 

the unit. When system is on, press and 
hold 

PWR/MUT 

button (23) to turn off the 

unit. 

FACEPLATE RELEASE 

Press

 

button (1) to detach the 

removable faceplate. 

SOUND ADJUSTMENT 

Press the volume button (3) shortly to 
select the desired adjustment mode. The 
adjustment mode will change in the 
following order: 

VOL    BAS    TRB      BAL      FAD 

(Volume)  (Bass)  (Treble)  (Balance)  (Fader) 

By rotating the volume knob (3) clockwise or 
counter-clockwise, it is possible to adjust the 
desired sound quality. 

SYSTEM SETTING 

Press and hold the volume button (3) on 
the front panel to enter system setting 
mode. Then shortly press the volume 
button (3) to select the item you want to 
change and rotate the volume knob (3) to 
change the corresponding setting. 
1) BEEP ON/OFF 

Use the volume knob (3) to set Beep 
sound ON or OFF. 

2) AREA OIR/EUR/USA/ASI/S-R/JPN 

In radio mode, Use the volume knob   

(3) to set the different area frequency 
spacing. 

3) DIM HIGH/LOW/MID 

In this menu, rotate the volume knob (3) 
to change the brightness of the backlight 
among High, Low and Middle. 

LOUDNESS 

Press 

BND/LOU/ENT

 button (14) for 

several seconds to reinforce the bass 
output. Press it for several seconds again 
to release this function. 
 

 

SET THE CLOCK   

Press the 

DISP 

button (22) until the clock 

is shown on the display. Then hold the 
button until the clock flashes. Then press 

 button (2) to change the minutes and 

  button (15) to change the hours. 

DISPLAY INFORMATION 

Press

 DISP

 button (22) to operate as the 

conversion of each display mode. 

EQUALIZATION 

Press

 EQ

 button (20) to turn on 

equalization function and to select desired 
audio mode. There are five kinds of mode   
as below: 

ĺ

FLAT

ĺ

CLASSICS

ĺ

POP M

ĺ

ROCK M

ĺ

DSP OFF 

 

MUTE

Press 

PWR/MUT

button (23) shortly to 

mute down the sound instantly. Press it 
again to resume the sound. 

LIQUID CRYSTAL DISPLAY   

Exhibit current frequency and activated 
functions on the display (13). 

REMOTE SENSOR 

Point the remote control handset to the 
remote sensor (26). Press the function 
keys on the handset to control the system. 

ESP FUNCTION 

The unit can be shockproof about ten 
seconds. 

AUXILIARY INPUT 

The unit can be connected to a portable 
audio player through the auxiliary input jack 
(24) on the front panel. After finishing the 
connection, you can press 

MOD

 button   

(11) on the front panel to switch the mode 
to AUX IN mode. 

RESET FUNCTION 

Reset button (25) must be activated with 
either a ballpoint pen or thin metal object.   

9

OPERATION 

BASIC OPERATION

SWITCHING ON/OFF THE UNIT   

Press 

PWR/MUT

button (23) to switch on 

the unit. When system is on, press and 
hold 

PWR/MUT 

button (23) to turn off the 

unit. 

FACEPLATE RELEASE 

Press

 

button (1) to detach the 

removable faceplate. 

SOUND ADJUSTMENT 

Press the volume button (3) shortly to 
select the desired adjustment mode. The 
adjustment mode will change in the 
following order: 

VOL    BAS    TRB      BAL      FAD 

(Volume)  (Bass)  (Treble)  (Balance)  (Fader) 

By rotating the volume knob (3) clockwise or 
counter-clockwise, it is possible to adjust the 
desired sound quality. 

SYSTEM SETTING 

Press and hold the volume button (3) on 
the front panel to enter system setting 
mode. Then shortly press the volume 
button (3) to select the item you want to 
change and rotate the volume knob (3) to 
change the corresponding setting. 
1) BEEP ON/OFF 

Use the volume knob (3) to set Beep 
sound ON or OFF. 

2) AREA OIR/EUR/USA/ASI/S-R/JPN 

In radio mode, Use the volume knob   

(3) to set the different area frequency 
spacing. 

3) DIM HIGH/LOW/MID 

In this menu, rotate the volume knob (3) 
to change the brightness of the backlight 
among High, Low and Middle. 

LOUDNESS 

Press 

BND/LOU/ENT

 button (14) for 

several seconds to reinforce the bass 
output. Press it for several seconds again 
to release this function. 
 

 

SET THE CLOCK   

Press the 

DISP 

button (22) until the clock 

is shown on the display. Then hold the 
button until the clock flashes. Then press 

 button (2) to change the minutes and 

  button (15) to change the hours. 

DISPLAY INFORMATION 

Press

 DISP

 button (22) to operate as the 

conversion of each display mode. 

EQUALIZATION 

Press

 EQ

 button (20) to turn on 

equalization function and to select desired 
audio mode. There are five kinds of mode   
as below: 

ĺ

FLAT

ĺ

CLASSICS

ĺ

POP M

ĺ

ROCK M

ĺ

DSP OFF 

 

MUTE

Press 

PWR/MUT

button (23) shortly to 

mute down the sound instantly. Press it 
again to resume the sound. 

LIQUID CRYSTAL DISPLAY   

Exhibit current frequency and activated 
functions on the display (13). 

REMOTE SENSOR 

Point the remote control handset to the 
remote sensor (26). Press the function 
keys on the handset to control the system. 

ESP FUNCTION 

The unit can be shockproof about ten 
seconds. 

AUXILIARY INPUT 

The unit can be connected to a portable 
audio player through the auxiliary input jack 
(24) on the front panel. After finishing the 
connection, you can press 

MOD

 button   

(11) on the front panel to switch the mode 
to AUX IN mode. 

RESET FUNCTION 

Reset button (25) must be activated with 
either a ballpoint pen or thin metal object.   

 

 

 

Summary of Contents for 644UA

Page 1: ......

Page 2: ...of ESP Function y Memory Card Interface y USB Interface y Auxiliary Input Function y Remote Control 1 644UA OWNER S MANUAL Mobile Audio System y PLL Synthesizer Stereo Radio y CD MP3 WMA Player y Auto...

Page 3: ...tes 12 Remote control 14 Specification 15 Trouble shooting 16 Repeating tracks 11 Basic operation 9 2 CONTENTS Installation 3 Take out screw before installation 3 DIN Front Mount Method A 3 Installing...

Page 4: ...es of the unit Then slide the sleeve off the back of the unit 30 Take out screw before installation 3 INSTALLATION Notes y Choose the mounting location where the unit will not interfere with the norma...

Page 5: ...utton to remove the front panel 4 Lift the top of the outer trim ring then pull it out to remove it 4 INSTALLATION 1 Front panel 2 Outer trim ring 3 Sleeve 4 L key 5 R key 6 Mount the sleeve by insert...

Page 6: ...ach side Note The outer trim ring sleeve and the metal strap are not used for method B installation 5 INSTALLATION 5 Insert both of the supplied keys into the slots at the middle left and right sides...

Page 7: ...of the front panel 7 Do not attempt to disassemble the front panel USING THE DETACHABLE FRONT PANEL 6 REMOVING THE FRONT PANEL 1 Press the release button on the front panel and pull off the front pane...

Page 8: ...7 WIRING CONNECTION FOR 60X4W SYSTEM 7 WIRING CONNECTION FOR 60X4W SYSTEM...

Page 9: ...interface 22 DISP button 23 PWR MUT button 24 Auxiliary input jack 25 Reset button 26 Remote sensor 8 OPERATION LOCATION OF KEYS 1 release button 2 tune seek track up 3 Volume knob when rotated SEL bu...

Page 10: ...e RESET FUNCTION Reset button 25 must be activated with either a ballpoint pen or thin metal object 9 OPERATION BASIC OPERATION SWITCHING ON OFF THE UNIT Press PWR MUT button 23 to switch on the unit...

Page 11: ...ase the button PAUSING PLAYING Press PAU button 5 to pause the player Press it again to resume play 10 OPERATION The reset button is to be activated for the following reasons Initial installation of t...

Page 12: ...olume button 3 The selected file can be played by pressing BND LOU ENT button 14 or volume button 3 11 OPERATION PREVIEWING TRACKS Press SCN button 6 to play first several seconds of each track on the...

Page 13: ...please see following recommendations a Use CD RWs with speed 1x to 4x and write with speed 1x to 2x 12 OPERATION 3 DISPLAY INFORMATION Press DISP button 22 to show the following information such as th...

Page 14: ...8x and write with speed 1x to 2x c Do not play a CD RW which has been written for more than 5 times 13 OPERATION C Notes on MP3 files MP3 Version Only 1 The disc must be in the ISO9660 level 1 or leve...

Page 15: ...Scanning Button 15 3 RPT Repeat Button 16 6 DIR Directory Up Button 17 5 DIR Directory Down Button 14 REMOTE CONTROL 1 VOL Volume Up Button Character Select A B 8 9 0 _ For MP3 WMA Operation 2 MUTE P...

Page 16: ...Stereo Separation 25dB AM Frequency Coverage 530 to 1710 KHz IF 450 kHz Sensitivity S N 20dB 36 dBu 15 SPECIFICATION GENERAL Power Supply Requirements DC 12 Volts Negative Ground Chassis Dimensions 17...

Page 17: ...radio station automatic selection does not work The signals are too weak Select a station manually 16 TROUBLE SHOOTING Before going through the checklist check wiring connection If any of the problem...

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