Connections For MP3/FM board

Discussion in 'The Projects Forum' started by jj_alukkas, Mar 31, 2010.

  1. jj_alukkas

    Thread Starter Well-Known Member

    Jan 8, 2009
    751
    5
    Hello,

    I recently bought a cheap board which plays music directly over USB as well as have an FM reciver. The problem Is that I cant figure out a few pins how to connect them..

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    I figured out the +5v and Gnd and supplied a power to see the display showing '87.5', so I think its booting up in FM mode.. Also found the L and R audio output channels with Gnd but didnt try conencting. I got a USB socket as well as a mini remote control and the dealer told me to get a IR reciever, so bought a 1738 reciver.. But I dont understand where to connect the 3.3 on the board to the TSOP1738.. Also there are terminals for a few buttons, but what would be the common terminals for them?? Would the G be correct as I marked in the diagram??
    Also what is this CDVCC, DET, DAT, CLK, CMD ??

    Please help me with this diagram and also have I marked the identified terminals correctly?? Thanks in advance...
     
  2. jj_alukkas

    Thread Starter Well-Known Member

    Jan 8, 2009
    751
    5
    Finally managed to get it working..
    Powered off 5v and wired the 1738 with the 3.3V, IR and GND pins and connected the USB socket with a usb drive and it started playing.. But the problem now is, I cant hear anything thru the output lines.. I tried with a tiny speaker as well as headphones.. Is it that I need a pre-amp or hi gain mosfet amp?? With the remote I am able to change tracks and change settings.. All fine, except no sound.. what to do??
     
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