Etched on top of board in copper MADE IN JAPAN stickered on top Serial No. 10147 orange dot sticker dot near pin 1 white dot sticker at other end of connector ROM showed card graphics .u18 MB8516 read as 2716 stickered 13 .u19 MB8516 read as 2716 stickered 11 .u12 MB8516 read as 2716 stickered 12 .u31 MB8516 read as 2716 stickered 10 .u51 6301 read as 82s129 18.000 Crystal 8080 8255 x3 5101 x2 8228 2114 x2 555 circuit for Robbie Mame GND--|104zuF|---|--|1K|--Middle leg of Q1 c1815 y21 - left leg (looking at flat side of Q1) of Q1 had 'E' next to pad | _____ | |--|103zuF|--pin 14 2003 @ u34 GND--|1 8|--VCC | |-----|223uF|--pin 15 2003 @ u41 |2 7|--------|120K|---------| Opposite leg from"E' of Q2 c1815 y21--|120K|--|3 6|-----------------------|broken cap|--pin 15 2003 @ u48 pin 10 8255 @ u20---------------|4 5|----|103zuF|---GND ----- Mame 0.133.5 E:\hardware\EETools\roms>e:\games\mame\mameui32\mameui32 -romident e:\hardware\eetools\roms\japan\roms\japan.u51 japan.u51 NO MATCH E:\hardware\EETools\roms>e:\games\mame\mameui32\mameui32 -romident e:\hardware\eetools\roms\japan\roms\japan.u18 japan.u18 NO MATCH E:\hardware\EETools\roms>e:\games\mame\mameui32\mameui32 -romident e:\hardware\eetools\roms\japan\roms\japan.u19 japan.u19 NO MATCH E:\hardware\EETools\roms>e:\games\mame\mameui32\mameui32 -romident e:\hardware\eetools\roms\japan\roms\japan.u12 japan.u12 NO MATCH E:\hardware\EETools\roms>e:\games\mame\mameui32\mameui32 -romident e:\hardware\eetools\roms\japan\roms\japan.u31 japan.u31 NO MATCH