red color is missing from my monitor and i check everything i can think of.
It is not the plug since the menu has color red (monitor menu)
Please help and the monitor is FPD1960 TFT LCD color monitor

Problem on the plug doesn't affect the menu's color

Check the plug again, or maybe it's your cable between monitor - computer.
Check the pins on the plug and see if there's any missing pin... or probably one of them got bended.