Please see following important safety instructions:

1. The nominal voltage of DC input to the A/D board is 12V, The size of DC current depends on the TFT    LCD panel, audio amplifier, etc. Please note that your AC/DC adapter's output plug need to match the DC input jack, the diameter of the jack is 5.5 mm.

2. Before connecting these input/output ports, Video port, it is strongly recommended that your turn off the A/D board and remove the DC 12V plug from the DC input jack.

3. Don’t put the A/D board into an airtight package. When it works, it will produce a certain heat.

4.  When assembling it, please use a suitable force; don’t distort the PCB and other components.