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638B MP3-Compatible AM/FM CD Receiver USER’S MANUAL CONTENTS Installation 2 DIN front-mount installation 3 DIN rear-mount installation 4 Removing the head unit 4 Detaching the front panel 5 Replacing the front panel 5 General controls 6 Radio controls 7 Audio controls 8 CD/MP3 Playback controls 9 How to select MP3 files 10 Controls behind faceplate 10 USB and SD/MMC operations 11 Remote control functions 12 How to use bluetooth in your car audio 13 Wiring diagram 14 Troubleshooting 15 Specifications 16 1
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Before removing the bezel, press the RELEASE button to remove the front panel. press RELEASE to release the front panel... Release Button 4 im638B.indd 4 18.3.
press RELEASE to release the front panel... Release Button 5 im638B.indd 5 18.3.
Front panel controls GENERAL CONTROLS POWER Press any button to turn unit ON. To turn head unit off, press and hold POWER. RELEASE Press to release and remove the front panel. DISP Selects radio frequency or clock display. To set the clock: 1. With clock display selected, hold down (DISP) button until clock display starts flashing. 2. Rotating VOL left to change minutes, VOL right to change hours. 3. Press (DISP) button to start clock The Liquid Crystal Display will display the current state of the unit.
RADIO CONTROLS AS/PS Select six strong stations and store them in current band. 1. Select a band (if needed) 2. Hold A/PS button for more than three seconds. The new stations replace stations already stored in that band. Preset Scan Scan stations stored in current band 1. Select a band (if needed) 2. Touch A/PS for more than one second but less than three seconds. Radio pauses for five seconds at each station. Touch A/PS again to stop scanning when desired station is reached.
Front panel controls AUDIO CONTROLS EQ Press repeatedly to cycle through five modes: POP M, ROCK M, CLASS, FLAT M or DSP OFF. SUB Press and hold to engage subwoofer output. LOUD Press this button to increase the level of bass output. MUTE Press to silence the receiver. Press again to return to normal operation. SOURCE By pressing this key, user can select AUX/TUNER/CDMP3/USB or MMC/SD mode.
CD/MP3 PLAYBACK CONTROLS EJECT Press to eject CD +10 10 TRACK UP SELECT: (In case of MP3 files) TUNE/TRACK BUTTONS Press and release to advance to next track or to return to the beginning of the current track (track number will be displayed). Press and hold to fast forward or reverse. Play will begin at the point when you release the button. -10 10 TRACK DOWN SELECT: (In case of MP3 files) SHUFFLE Press to play ALL tracks on the CD in random order. PAUSE Press to pause CD playback.
Front panel controls How to select MP3 files Searching Track: • Press “AS/PS”, then search track is activated. • Press “AUDIO” button, then the first digit will flash. • Rotary “VOL knob to right or left”, select first digit desired. • Press “AUDIO” button, then the first digit is fixed and second digit will flash. • Rotary “VOL knob to right or left”, select 2’nd 3’rd respectively. • Then automatically the song selected will start. Searching File Name: • Press “AS/PS” twice, then file search is activated.
USB and SD/MMC operations Insert SD/MMC card into the card slot. Support MP3 ID3 format music only. Plug your USB memory driver stick directly or using USB cable. Then automatically start to play. 2 sec. SEL ESP 2 sec. SEL ESP VOL ESP 12s. / 45s. CD MULTI SECTION MODE When press AUDIO button for more than 2 seconds, it is activated as selecting mode of these function. SEL MULTI VOL CD MULTI ON/OFF CD MULTI ON/OFF mode is selected by rotary VOL left or right 2 sec.
Remote controls functions POWER Use to turn the CD receiver ON or OFF SEL Turning the VOL knob Right or Left, you can adjust VOL/BASS/TREB/BAL/FAD. To select other functions, press the SEL button shortly until the desired functions is shown on the display. VOLUME Use to increase or decrease volume level. SOURCE Press to choose desired audio source (Radio, CD or Aux in). TUNE/SEEK and In Radio mode, press shortly to make manual tuning, press and hold to engage automatic seek function.
How to use Bluetooth in your Car Audio 1. You need to connect your mobile phone and car audio by pairing. A. Press (+) button in Bluetooth Remote Box longer than 6 seconds. The LED in Remote Box will blink fast. This mode is Pairing mode stage. Note: To deactivate Pairing, Press (+) again longer than 3 seconds. LED will stop blinking. B. Turn on the Bluetooth connection of the mobile phone. Perform Add Bluetooth device. The mobile will search for any Bluetooth devices within the range.
Electrical connections L (WHITE) R (RED) ANTENNA CONNECTOR L (WHITE) R (RED) SUB WOOFER L (WHITE) R (RED) LINE OUT (FRONT) ISO CONNECTOR LINE OUT (REAR) B LINE IN A BLUETOOTH SPEAKER ANTENNA CONTROL ISO A/B PLUG BLUE/WHITE POWER CONTROL CONSTANT 12 VOLTS FRONT LEFT SPEAKER REAR LEFT SPEAKER BLUE YELLOW + WHITE – WHITE/BLACK + GREEN – GREEN/BLACK BLACK GROUND (–) RED IGNITION SWITCH (12 V) GREY + GREY/BLACK – VIOLET + VIOLET/BLACK – FRONT RIGHT SPEAKER REAR RIGHT SPEAKER 14 im638B.
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Specifications 638B MP3-Compatible AM/FM CD Receiver CD/MP3 PLAYER Signal to Noise Ratio Channel Separation Frequency Response > 60dB > 45 dB 20Hz - 20 kHz RADIO FM Section: Frequency range Intermediate frequency Sensitivity Stereo separation Signal to noise ratio Channel step 87.5-107.9 MHz 10.
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