Etched in copper on top of board Exidy inc. PCB 77-2028 ASS 77-2029 ATTACK-1A FG-M1-A .a1 mmi 6301 read as 82s129 stamped 1001 .b1 mmi 6301 read as 82s129 stamped 1002 .c1 mmi 6301 read as 82s129 stamped 1003 .d1 mmi 6301 read as 82s129 stamped 1004 .j6 mmi 6301 read as 82s129 stamped 1005 .k6 mmi 6301 read as 82s129 stamped 1006 8.064 MHz crystal Left pot labled TIME 1 MIN <----> 2 MIN Right pot labeled SOUND -----> MAX Mame 0.136 E:\hardware\EETools\roms>e:\games\mame\mameui32\mameui32 -romident e:\hardware\eetools\roms\attack\roms\attack.a1 attack.a1 NO MATCH E:\hardware\EETools\roms>e:\games\mame\mameui32\mameui32 -romident e:\hardware\eetools\roms\attack\roms\attack.b1 attack.b1 NO MATCH E:\hardware\EETools\roms>e:\games\mame\mameui32\mameui32 -romident e:\hardware\eetools\roms\attack\roms\attack.c1 attack.c1 NO MATCH E:\hardware\EETools\roms>e:\games\mame\mameui32\mameui32 -romident e:\hardware\eetools\roms\attack\roms\attack.d1 attack.d1 NO MATCH E:\hardware\EETools\roms>e:\games\mame\mameui32\mameui32 -romident e:\hardware\eetools\roms\attack\roms\attack.j6 attack.j6 NO MATCH E:\hardware\EETools\roms>e:\games\mame\mameui32\mameui32 -romident e:\hardware\eetools\roms\attack\roms\attack.k6 attack.k6 NO MATCH