Introduction

The 72-PIN connector is a piece of hardware inside of the game console. It has 72 metal pins, which come into contact with the metal spokes inside of the game cartridge to register the game. The pins on the connector bend out of place over time, and the game console can no longer register your games. This guide will show you how to locate and remove your worn out 72-PIN connector.

Image 1/2: The screws are recessed about 40 mm. Image 2/2: Flip the game console right side up and take off the top by pulling it up and away from the rest of the device with your hands.
  • Remove the six 13.25mm Phillips screws on the bottom of the game console with a #2.5 flathead screwdriver.

  • The screws are recessed about 40 mm.

  • Flip the game console right side up and take off the top by pulling it up and away from the rest of the device with your hands.

the outside screws are a little deep, plan ahead :)

Joseph McCord - Reply

Image 1/2: Remove the metal cover by pulling it up and away from the rest of the console with your hands. Image 2/2: Remove the metal cover by pulling it up and away from the rest of the console with your hands.
  • Remove the seven 13.25mm Phillips screws from the metal cover with a Phillips head #2 screwdriver.

  • Remove the metal cover by pulling it up and away from the rest of the console with your hands.

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Image 1/3: Remove the two bronze 13.25mm Phillips screws from the cartridge tray using a Phillips head #2 screwdriver. Image 2/3: Slide the cartridge tray toward you, away from the 72-PIN connector, and off the motherboard assembly. Image 3/3: Slide the cartridge tray toward you, away from the 72-PIN connector, and off the motherboard assembly.
  • Remove the two silver 17.45mm Phillips screws from the cartridge tray using a Phillips head #2 screwdriver.

  • Remove the two bronze 13.25mm Phillips screws from the cartridge tray using a Phillips head #2 screwdriver.

  • Slide the cartridge tray toward you, away from the 72-PIN connector, and off the motherboard assembly.

There may also be two short/yellow screws at the upper (back) right and left of the cartridge tray.

Jay - Reply

Image 1/1: Make sure you orient this tab underneath the motherboard in addition to orienting the tray on top. Failure to do so will bow the cartridge tray and place stress on the component.
  • Underneath the cartridge tray is a black tab/lip (see marker).

  • Make sure you orient this tab underneath the motherboard in addition to orienting the tray on top. Failure to do so will bow the cartridge tray and place stress on the component.

This is so unclear! I have no idea what tab this step is referring to.

trevorsklar - Reply

Me too... No idea whatsoever

zac - Reply

its when your replacing the cartridge tray, if u do it wrong the tray will feel like it's bowing up in the middle, like when u put in the screws u have to press the tray down to get the screw holes to line up / be flush, if u get the lip underneath to catch correctly there will be no issue/bow u wan't have to press down on it, or make the screws pull the tray to the motherboard, instead the tray will be flush with no pressure applied, i had no idea what he meant either until i was reversing the steps.

Joseph McCord - Reply

also not all NES are the same underneath, my tab was much less noticeable and i had one less screw to get the shield off then he showed. and 2 less screws to remove the cartridge tray.

Joseph McCord - Reply

Image 1/3: Pull the motherboard assembly straight up and out of the plastic case with your hands. Image 2/3: Turn the motherboard assembly over so the metal cover is facing you. Image 3/3: Turn the motherboard assembly over so the metal cover is facing you.
  • Remove the three 13.25mm Phillips screws that secure the motherboard to the lower case with a Phillips head #2 screwdriver.

  • Pull the motherboard assembly straight up and out of the plastic case with your hands.

  • Turn the motherboard assembly over so the metal cover is facing you.

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Image 1/1: Player 1
  • Disconnect the wire harnesses from the motherboard assembly:

    • Player 1

    • Player 2

    • Power

  • Make sure you remember where player 1 and player 2 cables are plugged in; do not mix them up. A good technique would be to write each title on a piece of tape and wrap them around the appropriate wire.

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Image 1/3: Turn over the motherboard assembly so the 72-PIN connector is on the top of the motherboard assembly. Image 2/3: Turn over the motherboard assembly so the 72-PIN connector is on the top of the motherboard assembly. Image 3/3: Turn over the motherboard assembly so the 72-PIN connector is on the top of the motherboard assembly.
  • Lift off the EMI shield (metal cover) from the motherboard assembly.

  • Turn over the motherboard assembly so the 72-PIN connector is on the top of the motherboard assembly.

would have been really nice to show a Step 8 in pulling off the 72-PIN connector has i had to just guess that it would just pull off. it took a little force and at first i thought it was attached via something i was missing, Also anyone who wants to know when removing player 1/2 and the power and reset "big blue tab" don't pull on the wires but try and get your fingernail/jimmy on either side and nudge it going back and forth until you get some release a little, then go to other side and so same until you can get a better grip and just pull it out

Joseph McCord - Reply

Conclusion

To reassemble your device, follow these instructions in reverse order.

58 other people completed this guide.

nicholasweiser

Member since: 09/22/2010

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Cal Poly, Team 14-40, Forte Fall 2010 Member of Cal Poly, Team 14-40, Forte Fall 2010

CPSU-FORTE-F10S14G40

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5 Comments

Because it wasn't terribly clear, the pin connector pulls off from the motherboard. Just pull straight away from the board to clear the connector. It takes some force to get it off.

Dylan Peterson - Reply

And, no wires need to be disconnected either.

Very easy repair.

justinlamoureux - Reply

"How to replace your 72 pin connector"

Leaves out the steps that show how to remove the 72 pin connector.

Priceless

punch0073735963 - Reply

Um are we missing the last steps on how to actually remove the 72pin connector???

Connor Gray - Reply

I replaced mine, and I'm still getting a solid white screen. Any ideas what else it might be?

Brandon Dixon - Reply

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