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Flyron Technology Co., Ltd.
FN-A501 Programmable MP3 Player Siren / Alarm Speaker
E-mail: [email protected]
4
Also remove the screw at the middle of the board, and get the board to front side.
2). See the illustration below on the MP3 player board.
Volume control
Trigger to play 3
rd
sound
Trigger to play 4th sound
Trigger to play 1
st
sound
Trigger to play 2
nd
sound
Micro SD slot
Micro USB port
Power input
Audio output
to speaker