How to replace the 72-pin connector in your Nintendo NES

If you've ever played a Nintendo NES then you probably know that as fun as they are, over time you'll have issues with blinking or solid colored screens appearing, rather than the game you intended to play. Generally this means it's time for a new 72-pin connector. Well you're in luck, not only do we have connectors, but here's how to install it to make your system run like a champ once again.

You'll need-

(1) new 72-pin connector.

+(1) Phillips head screwdriver.

+15 minutes




Start with the NES on a clean, accessible workspace.



Turn the NES over and remove the six screws (see photo below) from the bottom in order to open the enclosure.



Turn the NES back over and lift the top cover off.



With the top cover of the NES removed the upper RF shield must now be removed.



Remove the seven screws (see photo below) to allow the upper RF shield to come loose.



Lift the top RF shield off of the NES PCB.



Removing the top RF shield reveals the NES cartridge mechanism.



Remove the remain seven screws indicated to detach the main NES PCB and cartridge mechanism from the enclosure. Make note of the silver screws and their location.



Slide the NES cartridge mechanism slightly forward, then lift it up and slide it away from the PCB.



The NES cartridge mechanism should slide right off of the NES 72-pin edge connector.



Gently lift up the PCB to make the 72-pin edge connector easily accessible, then remove the connector by pushing it in the direction of the arrows.



Here is the main NES PCB with the edge connector removed.



Push the new 72-pin edge connector on to the edge of the NES PCB.



After the replacement 72-pin edge connector is fitted to the NES PCB, ensure that the bottom shielding from inside the case is fit properly to the PCB, especially around the bottom connector.



All screws removed from the NES for edge (72-pin) connector replacement are the same size and color, except for the two silver screws from the cartridge mechanism. Be sure the silver screws go back where they belong.



When fitting the cartridge mechanism back on to the PCB, be sure to slide the bottom lip of it beneath the PCB, else things will not fit together properly. Also note the proper fitting of the bottom RF shield around the bottom connector.



Close everything back up and replace all the screws in their original locations. No need to over tighten.



With the NES reassembled you should be ready to go!