I've got a NES which is a CPU-01 and serial number 52,096. Someone messaged me on youtube wanting to know if it had 2 green jumper wires on board because he had a CPU-01 board that needed repair & indeed the early units do have 2 green jumper wires in the vicinity of the controller chips. Anyone know what their purpose is? None of the other 100 or so boards I have or have had has had them jumper wires. You can see them under the cartridge tray on the right side with the top removed & a flash light. I assume my 131 has them as well as all the other early units I have & would like to know a bit of information about them but it's probably non existent because I never had even noticed them before until the guy with a rough deck missing the serial number was repairing his board & posted a video on youtube showing me what he was talking about.
-------------------------