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#16684 |

Sorry Leo in the picture, at the top next to the white button you may notice the individual contact of TTL.
The 12v white button in the upper left allows, by feeding the laser to exchange between pointing mode and cutting mode
The first is to place it at the desired point and the second burning at full power (as if it were 255)

the part below the card is all empty, ie there are no tracks or visible components, and even connector of any kind.