Chances are if you've ever owned or played a Nintendo NES, you've experienced the blinking screen or have had trouble playing your games. The cause for all these problems is bad electrical connections between your game cartridges and the NES console caused by a worn out 72 pin connector
, dirt and corrosion.
With a little patience, you can repair your NES and games to a like-new condition. This guide will help you disassemble your console and show you the areas you need to focus on when cleaning and repairing your Nintendo NES. No electronics skills are needed to follow this guide. The only caution I would advise is to take it slow and make sure not to pull too hard on PCB boards or connector wires.
Looking for a detailed walkthrough on cleaning your NES Cartridges