Trying to identify this mod/bodge on an Atari 800

[mudmin]

I have an atari 800 that had a switch with the wires broken just under the cartridge cover and a pushbutton on the right side panel. I'm trying to figure out if this is a repair or some sort of freeze/reset mod.
The 2 wires on the first pic go to the button on the side.
The wires on the chip near the cartridge port have some going to a chip on the underside and some look like they used to be going to the switch. Any thoughts?

 

[ClausB]

Looks like it might be a circuit to make upper RAM write-only, to simulate ROM and defeat cartridge copy protection.

 

[mutt-gutt]

never seen a cartridge that had copy protection in the day the just relied on not many people being able to burn the chips in the cart maybe a switcher to enable ram in the rom locations
did you mean make ram read only as write only would be usless

 

[ClausB]

Haha, yes, I meant read-only. On a 48K Atari, upper RAM shares the same address as the ROM cart, so it was simple to load copies from disk to upper RAM. Cart makers got wise and added code to trash a RAM copy, and read-only RAM defeated that.