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In this guide I'll show you how to disassemble the motherboard of the Sega Master System II.
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Flip the console on its back and unscrew the 5 screws marked on this photo.
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Once you've unscrewed those 5 screws, flip the console upright again.
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Once the console is upright, first gently pull the rear of the top up.
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After the top is at an angle, gently remove it by pulling upwards.
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Once the 2 halves are separated, it should look something like this.
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Next step is the removal of the RF shield.
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There are 7 screws in total, please unscrew those.
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The blue marked screw is shorten than the other 6 screws, this screw has to be put back in the exact same location during reassembly.
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Carefully lift the RF shield up, left side first.
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See the note in the previous step.
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Now we have a complete view of the motherboard, thus coming to the last step.
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For this step you only need to remove 3 remaining screws.
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2 screws on the connector.
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There's 1 shorter screw as previously with the RF shield. This small screw keeps the voltage regulator in place.
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When you've disassembled everything, it should look like this.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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