I need a schematic for a 1986 Arpege Guitar

[Guitar5150]

Hi, I have a 1986 Arpege Guitar. It has started making an oscillating sound and there is current leaking out of the jack. I was hoping someone could hook me up with a schematic- as Vigier took the values off the IC's and seems to not have any schematics for these guitars. If anyone could let me know the value of the IC's that would help as well. Thanks!

[1Patrice Vigier]

They are TL062 and TL061