So far only tested with an 8Mb game on a 29F800 in a 32-pin socket, and found to work. It should work fine with a 29F160 since the only difference is one additional address pin.

This installs on the backside of a mask ROM. You must cut/isolate the /OE pin on the mask ROM and tie it to Vcc.

This adapter is made to work on both 32-pin and 36-pin mask ROM sockets. If using on a 32-pin socket, you will most likely have to cut off the 4 pins for clearance. You could score both sides with a utility knife or X-Acto blade and then snap it off, or use small flush cutters.

If you are using a 29F160 on a 32-pin socket, you will have to use a jumper wire for A20.

J1 connects /OE from the mask ROM socket to the TSOP chip, so close it if you are only using a single TSOP chip. If you leave J1 open, then you can use the /OE pad on this adapter to connect where ever you need it.

J1 is an 0603 resistor pad. You can use a 0-ohm resistor to close/bridge it, or a small bit of wire, or a trimmed leg from a through hole resistor or capacitor. I though the 0603 pad would be easy to close with a solder blob, but as it turns out, it’s not. The next revision of this board will have a proper jumper pad that is meant to be closed with a solder blob.

C1 is for an 0603 0.1µF capacitor.

Don’t forget to isolate the bottom to prevent shorts.