MXR noise gate script logo schematic question

[tinsomniacj]

ok, i have had this pedal for a couple of years now. It works fine and have had no problems with it. i noticed that one of the components is completely fried in it. it has been like this since i got the pedal and i was wondering if anyone could help me.

i am pretty sure its a diode. it is right next to the IC that is closest to the switch. it is under, what i call a stair case of resistors. if you have one of these you know what i am talking about then.

can anyone identify what that is, and tell me wether or not i should replace it? as i said it works fine, but i have never used the line driver part so i dont know if the component has to do with that or not.

thanks for you help.