Tired of buying new pin-connectors? Raging over the flashing red light? Unable to play Contra? Well I have the one 10-15 minute solution! (Tried this with my grandpa, he's got years of experience with electronics, worked with Grumman, the military, etc.) So, what is this magical trick that will fix most pin connector problems? Well here it is:
1. Unscrew and open your NES.
2. Locate and unscrew pin-connector area.
3. You know those white eraser that you see at the art store? You're gonna need one. Link: http://www.officedepot.com/a/products/9 ... 8909262716
4. Cut a sliver of it off.
5. Rub it on all of the connecting points. Avoid rubbing too hard, and avoid extensive skin contact with the connector.
6. Re-assemble NES.
Should work almost good as new. You have just gotten all of the excess crud off of your pin-connector that has been building up for 20+ years. Hope this helps!