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Soundstream VM-21B User Manual Download Page 15

TROUBLESHOOTING

13

If you suspect something is wrong, immediately switch power off.
Do not use the unit in abnormal condition, for example without sound, or with smoke or foul
smell, can cause fire or electric shock. Immediately stop using it and call the store where you
purchased it.  Never try to repair the unit by yourself because it is dangerous to do so.

- Turn you car's key to ACC or ON.

- Check the connection.

- Replace fuse.

- Check volume or mute on/off, adjust volume to a desired level.

- The built-in micro computer is not working properly due to noise.
Press the RESET button to restore the program to zero.

- Station or signal is too weak. Select other stations of stronger signal level.

- Insert the antenna cable firmly into the antenna socket of this car radio.

- Battery cable is not correctly connected. Connect the battery cable to the terminal that is

always live.

- USB or SD card connection is not good. Take it out and insert again.
- USB or SD card is damaged or no music file inside. Change to another USB or SD card, or

record music inside it.

General
1) Car's engine switch is not on.

2) Cable is not correctly connected.

3) Fuse is burnt.

4) Volume is in mute or minimum.

5) The operation keys do not work.

Radio
1) Much noise in broadcasts.

2) The antenna cable is not connected.

3) Preset station is reset.

USB/SD
1) USB or SD card is connecting but no sound

Summary of Contents for VM-21B

Page 1: ...Car AM FM Radio MP3 Player with USB SD Card Inputs Mech less USER S MANUAL LOC Model No VM 21B ...

Page 2: ...ing 7 Auto Seek Tuning 7 To Store Recall Preset Stations 1 6 7 USB SD Card Operation 8 To Insert USB SD Card 8 Eject USB SD Card 8 Play Pause 8 Next Previous Track 8 Fast Forward Backward 8 Introduction Scan 8 Repeating the same track 8 Playing All Tracks in Random 8 Track Folder Navigation 8 Remote Control 11 Troubleshooting 13 Loudness on off 6 Switch Between USA area and Europe area Frequency 7...

Page 3: ... reprogramming The unit is designed to be installed in a level horizontal position For optimal performance avoid installing the unit at an angle Never use excessive force when removing or attaching the faceplate Do not tightly grip the display and buttons to avoid damage Lithium Battery Cell Warnings Drives and connections Others Warnings Cell leakage may cause damage to the remote control Do not ...

Page 4: ...eft or right top corner of the plastic outer trim ring then pull it out to remove it 4 Insert the two bracket keys into the left and right side of the chassis as shown the below figure to separate the chassis from the housing 5 Insert mounting sleeve into the dashboard and bend the mounting tabs out with a screw driver Make sure that the lock lever is flush with the mounting sleeve and is not proj...

Page 5: ... the auto antenna is 200mA Removal of the Main Unit 1 Remove the metal strap from the main unit 2 Remove the plastic trim out from the main unit 3 Insert a bracket key into the left and right side of the main unit and draw the unit out of the mounting sleeve Wiring Connections WIRING DIAGRAM CAUTION 12V DC NEGATIVE GROUND INSTALLATION DIAGRAM 10A FUSE 10A ...

Page 6: ...k down track down fast reverse button 13 tune up seek up track up fast forward button 14 MUTE button 15 button 4 AMS automatic store preset station scan automatic music search button Preset station Preset station Preset station Preset station Preset station IR remote control sensor 16 LCD Display 17 EQ Equalizer Preset Button 18 USB port 19 SD Card Slot 20 MIC hole built in Microphone 21 AUX IN au...

Page 7: ...L01 00 R01 R06 R07 FADER R07 R06 R01 00 F01 F06 F07 EQ Equalizer Setting OFF CLASS ROCK POP FLAT Loudness LOUD ON OFF DX LOCAL Enables or disables the local broadcast mode LOCAL Stereo Mono Switches between MONO and STEREO reception mode for radio frequencies AREA US EU This car radio is equipped the USA Europe frequency Rotate the volume knob to switch between USA and Europe frequency The system ...

Page 8: ... your voice when you calling by using this bluetooth handsfree system The 3 5mm auxiliary input stereo connection is designed for deiveces with 3 5mm line out or headphone output The RESET button is used to reset all parameters to factory default settings This function may be used when the LCD does not display normally or sound is distorted or when any of the controls are disabled Press the releas...

Page 9: ...ion To recall a preset station Automatic Store station Preset station scan AMS AMS AMS LOCAL DX LOC ST The radio can be stored 6 preset stations for each band FM1 FM2 FM3 AM1 and AM2 for a total of 30 preset stations Turn the radio on and select the desired band and station Select a station by button Press and hold the desired preset button numbered 1 6 on the face of the radio for more than 2 sec...

Page 10: ... the SD card from the chassis Press the play pause button to pause or resume playback To play the next track press the button To play the previous track press the button To fast forward press and hold the button To fast backward press and hold the button Press the button to play the first 10 seconds of each track press again to stop the introduction scan and play the current track Press the button...

Page 11: ...e by its serial number and the TRK SCH and T sequence Rotate the knob to select the serial number of your favorite song with high speed c After selecting the desired serial number of your favorite song press the button to confirm and search If you want to listen to the 123rd song a Rotate the knob to select the 1 on the ones place 2 seconds later the 1 will skip to tens place b Rotate the knob to ...

Page 12: ...and button on remote control to input the telephone number and the entered number will be shown on the LCD b If a number has been incorrectly inputted press the button or button to delete it c Press the button to make outgoing call Press and hold the button on the control panel to redial the last dialed phone number When the mobile phone is called the incoming telephone number displays in the LCD ...

Page 13: ... about 30 degrees The distance between the emitting window of the remote control and the sensor window of the unit should remain less 5 meters 11 3 4 1 2 Button Names and Locations 1 Power on off button 2 3 4 5 8 9 10 11 16 17 18 19 20 VOL VOL volume increase decrease button Band button anser call button button tune down seek down Track down fast reverse SEL selection button 6 button tune up seek ...

Page 14: ...z 200KHz Step 87 5 108 0 MHz 50KHz Step Usable Sensitivity 30 dBu I F Frequency 10 7 MHz FM BT AM USB Card USA Europe Frequency Range 530 1710KHz 10KHz Step 522 1620 KHz 9KHz Step Usable Sensitivity 20 dBu I F Frequency 450 KHz Usable Audio Formats MP3 WMA Pre amp Output Front and Rear Frequency Response 20 Hz 20 KHz S N Ratio 60dB BT Profile supports A2DP AVRCP HSP HFP Range of frequency 2 4GHz s...

Page 15: ...ton to restore the program to zero Station or signal is too weak Select other stations of stronger signal level Insert the antenna cable firmly into the antenna socket of this car radio Battery cable is not correctly connected Connect the battery cable to the terminal that is always live USB or SD card connection is not good Take it out and insert again USB or SD card is damaged or no music file i...

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