Introduction
Disassembly of the NES. Use this guide to learn how to open the system and replace items such as the 72-pin connector, controller ports/buttons, & plastics.
Tools
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Remove six 13.25mm Phillips screws on the bottom of the system.
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Once all screws are removed, simply lift the bottom half away from the top housing.
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Remove seven 13.25mm Phillips screws around the perimeter of the RF shield.
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Lift the RF shield up and away from the system and place aside.
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Remove four 13.25mm Phillips screws from the four corners of the cartridge tray.
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Remove two 17.25mm Phillips screws from the top of cartridge tray.
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Once free, slide the cartridge tray towards you and then lift slightly in the front to remove.
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Remove three 13.25mm Phillips screws to free the motherboard from the bottom housing.
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Carefully lift the motherboard and turn it over to find the wired connections.
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Disconnect the wired connections from the motherboard.
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Player 1 (Shorter wires)
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Player 2 (Longer wires)
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Power/Reset Buttons
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The bottom RF shield is held on by tension around the expansion port. Lift the shield up and away from the motherboard.
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To remove the 72-Pin connector, apply force to each edge and slide the connector off the contacts on the motherboard.
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Remove two 13.25mm Phillips screws from the button assembly. Lift slightly in the back and then up and away from the housing to remove.
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Remove two 7.25mm Phillips screws from the bottom of the system. Lift the controller port faceplate up and away.
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Remove the controller ports by feeding them through the port holes to the front of the housing.
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Remove seven 7.25mm small flathead screws from the inside of the top housing.
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Two of these screws also hold a spring for the door. When reassembling, refer to the keyed shape of the plastic to orient these correctly.
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Screw List
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(19x) 13.25mm Phillips
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(2x) 17.25mm Phillips
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(2x) 7.25mm Phillips (Silver, large cap)
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(7x) 7.25mm Flathead (Silver, small)
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To reassemble your device, follow these instructions in reverse order.