The function of the interface
① DC 12V Input
② VIDEO OUT: VIDEO signal output
③ VIDEO IN: VIDEO signal Input
④ RCA AUDIO L: AUDIO signal input left
⑤ RCA AUDIO R: AUDIO signal out Right
⑥ STEREO Input: AUDIO signal input
⑦ STEREO Out: AUDIO signal out
⑧ USB: Service port
⑨ HDMI: HDMI signal input
⑩ VGA: RGB signal input
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