Red, green and blue? Ground wire? 6 welding? 7? 8? Last/better/previous/last name

Yellow and black? what's up Synchronization line? Welded on 13 and 14.

The VGA outer shield wire is welded on 15 or the shell.

This is the most basic 3+2 welding. The display device can basically light up. If there is a problem with the color after welding, the 123 wire must have been connected during welding. It is recommended to isolate it with heat shrinkable tube. What if the welding is finished? The screen is not bright, so it must be 13? 14 has a problem.

Attention? Male head? Woman? The line order is the opposite!

In daily life, because the decoration takes the dark line, one end of the VGA line is cut and welded after it is done online. Then before welding, you need to use a multimeter to measure the wire sequence at both ends, because different manufacturers have different color standards for wires!

If both ends are welded, just do as I said at the beginning.