Galaga?

Silkscreened on top of board			2002-3

Rom text and graphics showed Galaga stuff

top left corner by 2002-3 is row a, column 1 for rom locations

.1i	MX26c512
.4j	27256	handwritten	2
.4l	27256	handwritten	1
.5j	27256	handwritten	5
.5l	27256	handwritten	4
.5n	27256
.6a	27256	handwritten	9
.6c	27256	handwritten	8
.6d	27256	handwritten	7
.6f	27256

18.432MHz oscillator
D780c		x4
ATF1508		x3
6116		x5
kt76c28k	x2

Mame 0.139.2

E:\hardware\EETools\roms>e:\games\mame\mameui32\mameui32 -romident e:\hardware\eetools\roms\b2002\roms\b2002.1i 
b2002.1i            NO MATCH

E:\hardware\EETools\roms>e:\games\mame\mameui32\mameui32 -romident e:\hardware\eetools\roms\b2002\roms\b2002.4j 
b2002.4j            NO MATCH

E:\hardware\EETools\roms>e:\games\mame\mameui32\mameui32 -romident e:\hardware\eetools\roms\b2002\roms\b2002.4l 
b2002.4l            NO MATCH

E:\hardware\EETools\roms>e:\games\mame\mameui32\mameui32 -romident e:\hardware\eetools\roms\b2002\roms\b2002.5j 
b2002.5j            NO MATCH

E:\hardware\EETools\roms>e:\games\mame\mameui32\mameui32 -romident e:\hardware\eetools\roms\b2002\roms\b2002.5l 
b2002.5l            NO MATCH

E:\hardware\EETools\roms>e:\games\mame\mameui32\mameui32 -romident e:\hardware\eetools\roms\b2002\roms\b2002.5n 
b2002.5n            NO MATCH

E:\hardware\EETools\roms>e:\games\mame\mameui32\mameui32 -romident e:\hardware\eetools\roms\b2002\roms\b2002.6a 
b2002.6a            NO MATCH

E:\hardware\EETools\roms>e:\games\mame\mameui32\mameui32 -romident e:\hardware\eetools\roms\b2002\roms\b2002.6c 
b2002.6c            NO MATCH

E:\hardware\EETools\roms>e:\games\mame\mameui32\mameui32 -romident e:\hardware\eetools\roms\b2002\roms\b2002.6d 
b2002.6d            NO MATCH

E:\hardware\EETools\roms>e:\games\mame\mameui32\mameui32 -romident e:\hardware\eetools\roms\b2002\roms\b2002.6f 
b2002.6f            NO MATCH