It's OK. Pin 1 on most ROMs (up to 64K) is either ground or +5v, and about 24 pins. 128K, 256K and 512K ROMs Pin 1 is usually an address pin, depending the ROM size. They are to up 28 pins in size. Usually.

I'll check the schematics when I get home. Right now I'm at the doc office with my travelling Mac and do not have the schematics with me.