IIYAMA ProLite GE2488HS – lokalizacja GND i 5V na 7-pinowej taśmie zasilacza

Hello, I have the power board of my PL2488H (IIYAMA ProLite GE2488HS) and my question is: where are the GND and the 5 V? If someone can explain to me, I don't see anything on the board; I have only a 7-color cable on this. Thanks so much if you can tell me and sorry for my
English.

Connect the AC230V power supply and measure the voltages at the connector.