Common simple faults and guidance for operation and repair Fault description Possible causes Troubleshooting Speaker not power on The power switch is turned on The speaker is out of battery Turn on the power switch Use power adaptor to charge the battery Audio input is not correctly selected. The audio cable is not connected properly to the line input. Main volume is switched to minimum. No sound when playing U-disk. No sound when playing by line input Poor contact or damage of external audio cable Change the audio input by pressing the mode button. Reconnect the audio cable. Properly adjust the volume knob. Check the U-disk or the mode switch button. Change the audio source of line input. Readjust or change audio cable. External microphone is not fully inserted in the jack The external microphone switch is not turned on The volume knob of microphone is off Totally insert the microphone to the jack Turn on the switch of wireless microphone Properly adjust the volume knob of microphone Mobile Speaker A6-4B No sound External microphone has no sound Problems with wireless microphone The switch of wireless microphone is not turned on The wireless microphone is not Installed with batteries The sound of wireless microphone is in distortion Turn on the switch of wireless microphone Install the batteries in the wireless microphone Change the battery of wireless microphone If the above solution did not solve the issue, please contact the nearest local maintenance department. The product technology of our company is upgraded continuously, the product descriptions in this manual are subject to change without notice. Operating Instructions Please carefully read the operating instruction before using our product Compatible to DVD/VCD/PC and other sound sources Suitable for adaptor and charging Intelligent power switch charging circuit Professional treble and bass gain controlling circuit Built-in battery for outdoor activities Built-in professional wireless microphone system Professional high-effective loud-speaking unit To customers:
Respectable users, Thank you for your support and trust on purchasing the products of our company. To fully exert the function of the product, we suggest you to read the operating instruction carefully before using it, for the convenience of grasping the connection method and using points. Please take care of the operating instruction after reading it for the purpose of further reference. Product features Ultra-low distortion amplifying circuit Digital karaoke, treble and bass independent adjustment Built-in MP3 encoding supporting U disk Unique acoustic appearance design Attention The product has been installed with battery, making it applicable to the outdoor singing, advertisement, recreation and other activities. Please charge the battery before using it outdoors, so as to guarantee that the machine can be used for a longer time outdoors. The machine has been set with power switch circuit. When you connect the adaptor to the power and insert the plug to the charging interface, the machine will switch to the power supplied by the adaptor automatically and charge the built-in battery. When the adaptor interrupts the power, the machine will intelligently switch to the built-in battery for work continuously. When adaptor is used to charge the battery, the integrated intelligent charging circuit within the machine will give hints about charging and the charging indicator lamp will light. After charging is finished, the intelligent charging circuit will give hint to that that the charge has been fully charged and light the charging indicator lamp. At this moment you can close the AC power of the adaptor. If you still use adaptor in the machine to work, the charging circuit will automatically cut off the charging circuit and it is unnecessary for you to worry about the charging breaking. You shall notice that the battery has certain service life and it is beyond the warranty scope of the company. Under general circumstances, the built-in battery needs charging 8-10 hours. With more charging times, the battery volume will change and full charging time will reduce accordingly. When the battery is out of charge after being used for a short time, please change the built-in battery. The user shall also notice that if the electricity quantity of the battery is reduced when using the machine outdoors, please close the power switch on the rear plate and charge the built-in battery within 24hours. If the electricity quantity of battery is totally consumed, the situation that the battery can not be charged and the service life is expired will happen. When you don't use the machine for a long time and leave it alone, please charge the battery every six months, so as to avoid the invalidity of battery. Instruction of U disk MP3 encoding playing When you need to use the built-in MP3 encoding function, please format your USD disk (U disk for short below) as FA-
T32 format in computer first and then copy the file in MP3 format in U disk. When reading U disk, the encoding system will engage in encoding playing according to the generation sequence of MP3 songs file. Therefore, the song which is copied to U disk first will be played in priority or vice versa. When the user needs to play according to the specific sequence, they can arrange the copying sequence. If the files copied to U disk can not be played, please inspect whether the file format is in MP3 format. If not, please switch to MP3 format in computer and then copy to U disk in order to play normally. When copying MP3 file, you shall copy to the catalogue of U disk. It is suggested to delete all the unnecessary files and file catalogues in order to reduce the occurrence of reading error when the encoding is played. When the user buys U disk, please select the ones with better quality and internal encoding supporting 64MB/128MB/256MB/512MB/1GB/2GB/4GB/8GB and other volumes. During the playing process, please make it far away from the places with high temperature, high magnetic field and high frequency interference. In case of crash, please close the power and restart for recovery!
Panel/rear plate/MP3 function and operation 16 15 14 13 12 11 10 9 MIC.VOL ECHO MIC IN LINE IN TF CARD USB 17 1 2 3 4 5 6 7 8
: Allows you to select between dierent audio sources: USB storage device, SD
: Long press to start recording; short press playback the recording les. Recording function
: Set the loop mode of the songs to repeat one or repeat all.
: Play the previous song.
: Start and pause in playback.
: Play the next song. 1.-
memory card, Line input or Bluetooth receiver. 2.-
only works when the U-disk is inserted. 3.-
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7.- Information screen 8.- DC IN 9 V: Power input for the supplied power adapter. 9.- MIC IN: Micro level input, 6.3 mm jack connector. 10.- CHAR: The indicator will glow when the speaker is charging.
- FULL: This indicator will glow when the battery is fully charged. 11.- VOLUME: General volume control. 12.- ECHO: Decrease or enhance the echo eect. 13.- MIC VOL: Volume control for the handheld wireless microphone and MIC IN micro input. 14.- Connection port of USB storage devices. - Connection port of TF memory cards. 15.- LINE IN: Line level auxiliary input. 16.- DC INPUT: Connection terminals for DC 12V. 17.- POWER: On/O switch of the portable amplier. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. Caution: Any changes or modifications to this device not explicitly approved by manufacturer could void your authority to operate this equipment. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.