Optoma EX550 - The Backside of Mainboard

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5.2 The backside of mainboard
Connector Description
No 1 /
No 2 Connect to DMD Board
No 3 Fan2
No 4 Color Wheel Sensor
No 5 Connect to Power Board
No 6 Ballast control
No 01
No 06
No 03
No 02
No 05
No 04