... .** (this operation is invalid when you open OSD menu)- “Clamp sp” & “Clamp” please don’t adjust this button , excepting the ... board, display, high resolution screen, LCD games, arcade LCD, HD game consoles, high resolution scanning, connectivity fighting, KOF board, LCD Landlords ... it’s too black, or picture discoloration. -please adjust “Clamp sp” and “Clamp st”, please keep “Clamp st” less than “ ...