R-86 Foam Behind CCC

[mgentry66]

Hello, I'm cleaning up and restoring my R-86. The foam behind the CCC board has rotted away and some has stuck to the pcb. A couple of questions. I tried to brush off the foam from the pcb with some 91% isopropyl and a soft toothbrush. seems like its leaving a little residue. Is that ok? Also, what type of foam should I use to replace it with? 

I've owned the machine for seven years but not messed with it since i bought it. Located in the US.

thank you

[Ron Rich]

You can just leave what's stuck-- does not seem to affect anything- fill space with thin cardboard. No problems ! Ron Rich

[Ken Layton]

I use 99% isopropyl alcohol to clean the "gunk" off of the circuit board. I use a cut up cereal box to make a new insulator sheet for the back of the circuit board.

[Ron Rich]

Hi Ken,
I wonder how many "cereal boxes" are in jukeboxes-- ? I did the same for years till I got a roll of "fish-paper"-- lol
Ron Rich