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What exactly do I mean by making a NES universal some of you may question? Well for some reason Nintendo decided that the European
and US NES decks should'nt be compatible with each other, most likely to avoid parallel import and such. Even Europe was split into
a REV-A and REV-B, depending on the type of TV signal used some say but fact is that any US or PAL-A game will work on a PAL-B NES deck,
the only thing keeping you from playing foreign games without a converter is the Nin10, better known as the lockout chip.
On this page you will find a guide explaining how to disable the Nin10 chip. The guide has been tested quite a few times over the
years since it was published back in year 2000. However don't blame me if you screw up your NES deck to the point where it's absolutely
useless. Should you decide to try your luck with the guide below it's entirely your problem if anything goes wrong...
In other words, don't come crying at my doorstep ;-)
What you need for this operation:
Philips screwdriver (crosspoint (X) screwdriver)
A Diagonal cutter
Ok we're ready to begin then, if you want a larger scan of the picture just click on the one you
want to see a larger scan of.
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STEP 1:
Flip your NES around so that it's lying with the bottom up. Remove the 6 screws,
normal Philips screws. Lift the bottom part, dark grey part, apart from the other
half of the NES casing and place it on the table so that you now are facing the
inner parts of the system.
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STEP 2:
Now remove the 7 screws (marked with a yellow square) which holds the metal case covering
the cartridge tray.
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STEP 3:
Now remove the 6 screws marked with the yellow square.
Please note the 2 blank screws, they have to go back in the exact same spot. There's no need
to remove the two screws (one on each side) sitting close to the blank ones.
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STEP 4:
You should now be able to lift up the motherboard (the cartridge slot and all) and turn
it around 180 degrees' so you're facing all the chips on the board. There's no need to
remove the 3 plugs with wires going into the motherboard, I only did it because it would
be easier to make scans then.
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STEP 5:
Ok this is where the hard part is. Look for the chip marked with the yellow square on the picture, the
chip itself says "3195A" or something similar. Well its the only 16 (8 on each side) leg'ed
chip placed on that spot on the board and the only one which says "(C) 1986 Nintendo" aswell. The weird dot on the chip marks "leg 1", it the leg
closest to the dot. What you need to do now is cut the fourth leg with the diagonal cutter.
Click on the picture so see where exactly the 4th leg is, incase you're confused about where
exactly it is located.
Make sure that the chip and the leg you cut is nolonger touching eachother, carefully bend
it away from the motherboard or the chip, depending on where you cut the bone, just make
sure that the chip and the leg is nolonger in contact with eachother.
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STEP 6:
All you need to do now is reassemble the NES again. Flip the Motherboard back to normal
position with the cartridge tray facing up, watch out for the wires going from the motherboard.
Put the screws back into their positions, remember to put the two blank screws into the
right spot. Go back and look at the pictures if you cant remember where to put them.
CONGRATULATIONS!! YOU NOW HAVE A UNIVERSAL NINTENDO ENTERTAINMENT SYSTEM :)
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