Small board meant to replace faulty NEO-273 custom chips in SNK game cartridges.Designed by furrtek in France
What is this ? This is a small, pre-assembled board meant to be used as a replacement for faulty NEO-273 custom chips in SNK NeoGeo game cartridges. A faulty NEO-273 chip causes graphics (sprites a...Read More…
This is a small, pre-assembled board meant to be used as a replacement for faulty NEO-273 custom chips in SNK NeoGeo game cartridges.
A faulty NEO-273 chip causes graphics (sprites and text) glitches.
Remove the faulty NEO-273 chip with hot air, remove the remaining solder on the PCB pads with solder braid if the surface isn't perfectly flat. Clean up the eventual flux residue with IPA or acetone. Place the NEO-273 replacement board in the right direction (see pin 1 mark), align it precisely, solder the 4 corners using a generous amount of flux, then drag-solder all the sides. The small castellated contacts will "attract" solder by capillary action. Make sure none of the contacts are bridged.
If you decide to install the board with hot air, be careful not to knock or blow off the board's own chips when the solder will reflow.
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