Atari 2600 Jr. component question

[shear_xear]

Hi everyone!  So I used to install the old simple composite mod on 2600’s, and had a bunch of Jr models that has some artifacts on the picture after the mod was installed.  I’d like to restore the boards back to their factory state, but can't find schematics for the board to find what parts I need to buy in order to do this.  Does anyone know what these parts are?  They are r17 and r56 as well as c33 and q4.  Any help would be great.   Thanks!