China factory direct sale Audio High Quality bt Fm Usb Mp3 Player Circuit Decoder

Bluetooth Fm Usb Mp3 Player Circuit Decoder

Support function introduction: MP3/USB/SD/LINE IN/FM/Bluetooth/remote control receiving/DC power supply 5V

Product Details:                                                                               

Workshop production line:                                                                                     

 Certificate:                                                                                                                                

Package:                                                                                                                              

Logistics and Express:                                                                                           

Our Services

      We wish you are fully satisfied with each item that you purchase from JLH One year Warranty

1,One year Manufactruer’s Warranty for defective items(excluding items damaged or misused after receipt)

2,Defective items must be reported and returned to us within the warranty period(and in the original packaging, if possible).You must tell us what the defcet is and prove,we do not rpaite or replace items

3,With an expired warranty. However,the expenses in the process of repair shall be paid by the buyers.

    For all youe inquiries,please contact us immediately,we will reply you as soon as possible

Company Information

    Our production range:speaker module,mp3 decoding module,mini card speakers MP3 circuit board PCBA,no disc on-board machine such as circuit board,harware,SMT,plug-in,assembly,testing,packing,delivery through-train service.

FAQ

1,open the power supply decoding board shows that”HI”

    Connect the power cord will connect the audio line at the same time,did not answer the audio line will show”HI”in decoding board

2,use some customers connected to their audio power amplifier will have noise

    One:using the multimeter,check whether the ground of the power amplifier on a board under the connected(audio ground wire and ground wire of power supply),then com pare the decoding ground wire is connected on the board(audio ground wire and power supply ground wire)must be broken,if the ground wire of power amplifier board is broken,so the decoding board(audio ground wire and power supply ground wire)must be connected.

    Two:the connection between offensive and defensive board and decoding board line if it is too long can also cause murmur voice,use a shorter wire connecting the two board is ok.

China factory direct sale Audio High Quality Bluetooth Fm Usb Mp3 Player Circuit Decoder

China factory direct sale Audio High Quality Bluetooth Fm Usb Mp3 Player Circuit Decoder

China factory direct sale Audio High Quality Bluetooth Fm Usb Mp3 Player Circuit Decoder