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http://romlaboratory.dbwbp.com/romlab/snesroms.htmpin 33 - /OE, solder adapter to back side.
The Mask Rom must be “deactivated” as a final step. Do this AFTER the adapter has been mounted on the donor.The MASK Rom has a control line, the “/OE” line. When this line is tied to 5volts, it deactivates the rom as if it was never there. The Control line is pin 33 and the 5volt line is pin 34 (how handy!) Cut pin 33 close to the pcb and then bend it over to the 5volt pin and solder. The Mask rom is now deactivated. Don’t let the MASK Roms confuse you…. There are 36pin and 32pin mask roms but the control line is always in the same place. Just Always count as if it was 36 pins.
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