Triva looking board Silk screened on front... P/N 1001 Etched in copper on font... COMPONENT SIDE REV 02 Etched in copper on back... COPYRIGHT SMS 1983 S/N MADE IN USA mfg corp Serial number A4675 etched in board Large chips P8088 AY-3-8910 CDM6116 x2 P8255A-5 P8254 D8255AC-5 D780C-1 16 Mhz crystal by D780C (U21) 24 Mhz crystal by P8088 (u53) Open sockets at U50 (40 pin), U15 (24 pin), U2 (40 pin), U25 (24 pin) Bottom Board .U17 - 27128 .U16 - 27128 .U26 - 2732 - stickered #26 073184 .U38 - DMPAL10L8NC - 3 blue dots on it - saved in jedec format .U39 - DMPAL10L8NC - 3 green dots on it - saved in jedec format .U40 - DMPAL10L8NC - 1 pink dot on it - saved in jedec format .U110 - DMPAL10L8NC - 2 pink dots on it - saved in jedec format .U52 - DMPAL10L8NC - not labeled - checksum was 0 .U32 - DMPAL10L8NC - stickered trivia U32 - couldn't read "device overcurrent" .U58 - DMPAL10H8NC - 3 brown dots on it - saved in jedec format .U80 - DMPAL10H8NC - 2 blue dots on it - saved in jedec format .U130 - DMPAL10H8NC - 3 pink dots on it - saved in jedec format .U129 - DMPAL10H8NC - pink-green-pink dots on it - saved in jedec format .U128 - DMPAL10H8NC - blue-brown-blue dots on it - saved in jedec format .U145 - DMPAL14H4NC - brown dot on it - saved in jedec format .U144 - DMPAL14H4NC - brown dot on it - saved in jedec format .U143 - DMPAL14H4NC - brown dot on it - saved in jedec format .U142 - DMPAL14H4NC - brown dot on it - saved in jedec format .U141 - DMPAL14H4NC - brown dot on it - saved in jedec format .U140 - DMPAL14H4NC - brown dot on it - saved in jedec format U.145-U.140 had the same checksum .U94 - DMPAL14H4NC - 2 green dots on it - saved in jedec format .U109 - DMPAL14H4NC - 2 brown dots on it - saved in jedec format Daughter Board Etched in copper on top... SMS MFG M?I 2685 ? = a cage looking symbol Read starting at top row, closest to connector to main board .D0 - DMPAL10L8NC - 1 orange dot on it - saved in jedec format .D1 - 27128 - couldn't read sticker - .D2 - 27128 - couldn't read sticker - .D3 - 27128 - couldn't read sticker - .D4 - 27128 - stickered 4 MOVIES .1 ?2485 ? = can't read .D5 - 27128 - stickered 3 ANYTHING .4 042485 .D6 - 27128 - stickered 2 ANYTHING .3 042485 .D7 - 27128 - stickered 1 ANYTHING .2 042485 .D8 - 27128 - stickered 0 ANYTHING .1 042485 2nd row - left to right .D9 - 27128 - stickered 12 MUSIC .1 042485 .D10 - 27128 - stickered 13 MUSIC .1 042485 .D11 - 27128 - stickered 14 MUSIC .1 042485 .D12 - 27128 - stickered 15 MUSIC .1 042485 3rd row - left to right .D13 - 27128 - stickered 11 SPORTS .4 042485 .D14 - 27128 - stickered 10 SPORTS .3 042485 .D15 - 27128 - stickered 9 SPORTS .2 042485 .D16 - 27128 - stickered 8 SPORTS .1 042485 .D17 - DMPAL10L8NC - 1 white dot on it - saved in jedec format ROM text showed... COPYRIGHT 1984 SMS MFG CORP TRIVIA HANGUP SMART ALECS