Introduction

In this guide i'll show you how to disassemble the motherboard of the Sega Master System II

Parts

No parts required.

Flip the console on it's back and unscrew the 5 screws marked on this photo.
  • Flip the console on it's 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.
  • 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. After the top is at an angle, gently remove it by pulling upwards.
  • Once the console is upright, first gently pull the rear of the top up.

  • After the top is at an angle, gently remove it by pulling upwards.

  • Note: Be very careful! The top has 2 tabs connecting it with the bottom half, those are in the vincinity of the 2 controller ports! (marked yellow)

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Deck the Halls
With tools and Fix Kits
Once the 2 halves are separated, it should look something like this.
  • 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
  • Next step is the removal of the RF shield

  • There are 7 screws in total, please unscrew those.

  • 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.

  • Note: Tab marked in yellow!

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Carefully lift the RF shield up, left side first.
  • Carefully lift the RF shield up, left side first.

  • See note previous step.

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Now we have a complete view of the motherboard, thus coming to the last step. For this step you only need to remove 3 remaining screws.
  • Now we have a complete view of the motherboard, thus coming to the last step.

  • For this step you only need to remove 3 remaining screws.

  • 2 screws on the connector.

  • 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.
  • When you've disassembled everything, it should look like this.

  • Once you've got the replacement board, just follow this guide in reverse order,

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Conclusion

Om het apparaat weer te monteren, volg je deze instructies in omgekeerde volgorde.

One other person completed this guide.

Arjan Kuiper

Member since: 04/20/2016

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