6
3. List of circuit boards
NO.
Part NO. Part
1 Display board (including software) 8 Indicator lamp Panel Assembly
2 Main Board (including software) 9 Fan conversion Board
3 Power Board 10 IR Assembly
4 Key board 11 WIFI Board
5 Right Eye Protection Board
6 Left Eye Protection Board
7 DMD Board
4. Power board PIN list
XP904 is the power board to the main board connection line
XP902 is the power board to the display board connection line
XP1 is the power terminal on the display board.
XP902:
(1) Pin 1, 3, 5, and 7 are the 12V power supply pins for the display board
(2) Pins 9, 10, and 12 are the R, G, and B analog dimming pins (current
adjustment pins) that the display board outputs to the power supply board, and
the maximum is 5V.
(3) Pins 11, 13, and 15 are the R, G, and B digital dimming pins that the display
board outputs to the power supply board, and are square waves with a duty
cycle.
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