Original readme by Eugene Sandulenko / Shiru update 2008-08-05 by f205v This arcade machine contains four PCBs: BEIA-100 Main CPU board. CPUs, support chips, PROM, XTAL 15750 |-------------------------------------------------------------------------| | A B C D E F | | |---------| c|t s| 11 KR580VI53 KR1533LA1 |KR556RT17| o|o o| |---------| n| u| 10 KR1533LI1 n|c n| e|a d| 9 K155IE7 K555LL1 c|s | t|e +|C 8 K K o| |o R R r| i|n 7 5 5 | n|n 8 8 | p|e 6 KR1533LN1 0 KR580VK28 0 KR1533AP6 | u|c V V | t|t 5 KR1533LN1 V X KR580GF24 M KR1533AP6 | |o 5 T 8 c|t p|r 4 KR1533LN1 KR1533LN1 5 A KR1533TM2 0 KR1533LN1 o|o o| A L A n| r| n|c t| 3 KR1533LI1 K155LN2 K155LN2 KR1533IR23 KR531RU8 KR1533KP12 e|a s| c|s | 2 KR1533LE1 KR531RU8 KR1533KP12 t|e | o| | 1 K155LN3 KR1533LE1 KR1533LA1 r| | | |-------------------------------------------------------------------------| BEIA-101 Video board 1. Background generator, video tiles RAM and video sync schematics, PROM |--------------------------------------------------| | A B C D | | 13 K555LL1 K555ID4 K555KP11 K155IE7 c|t | o|o | 12 KR1533LN1 K555TM2 K155IE7 n| | n|c | 11 KR531TM2 K555LI1 K555AP6 K155IE7 e|a | c|s | 10 K555ID4 K555LL1 K555AP6 K155IE7 t|e | o| | 9 K555LI1 K555IR23 K555AP6 K555ID4 r| | | | 8 K555KP7 K555IR23 KR537RU8 K555KP11 | | | | 7 KR531TM2 K555ID4 | | K555AP6 | | 6 K155IE7 KR537RU8 | | | | 5 K155IE7 K155IR13 | | K555AP6 | | 4 K155IE7 KR537RU8 K155IR13 | | K555AP6 | | 3 K155IE7 KR537RU8 | | |-| c|t | |K| o|o | 2 |R| K555AP6 K155IR13 n| | |5| KR537RU8 n|c | |5| e|a | 1 |6| K555AP6 K155IR13 c|s | |R| t|e | |T| o| | |1| r| | |7| | |--------------------------------------------------| BEIA-102 Video board 2. Sprite generator, video buffer RAM (hardware triple buffering), PROMs |------------------------------------------------------------| | A B C D E | | c|t | 9 KM555TM2 KR531RU8 KR531RU8 K155IE7 K555AP6 o|o | n| | 8 K555LP5 KR531RU8 KR531RU8 K155IE7 K555KP11 n|c | e|a | 7 KM555TM2 KR531RU8 KR531RU8 K155IE7 K555ID4 c|s | |---------| t|e | 6 K555LL1 |KR556RT11| KR531RU8 K555ID4 K555KP11 o| | |---------| |-| r| t|c |K| | o|o |R| | |n |5| | B|n |5| | E|e 5 K555LP5 |6| K555ID4 | I|c |R| | A|t |T| | 1|o |1| | 0|r |7| c|t 3| |-| o|o | 4 KR1533LN1 K155IE7 K155IE7 K155IE7 K555IE7 n| | |---------| n|c | 3 K555KP11 |KR556RT11| KR541RU2A K555KP11 K555KP11 e|a | |---------| c|s | 2 K555KP11 K555KP11 KR541RU2A K555KP11 K555KP11 t|e | o| | 1 K555KP11 K555KP11 KR541RU2A K555KP11 K555KP11 r| | | |------------------------------------------------------------| BEIA-103 EPROM banks, RAM. |----------------------------------------------| | A B C D c|t | o|o | 8 K555LE1 K555AP6 n| | n|c | 7 KR1533LI1 M2764A e|a t|c K555ID7 c|s o|o 6 M2764A K155IR13 K555ID7 t|e |n o| B|n 5 M2764A K155IR13 M2764A r| E|e | I|c c|t A|t 4 K555KP11 KR537RU8 M2764A o|o 1|o n| 0|r 3 M2764A K155IR13 KR537RU8 M2764A n|c 2| e|a | 2 M2764A K155IR13 KR537RU8 M2764A c|s | t|e | 1 KR537RU8 M2764A o| | r| |----------------------------------------------| Notes: All connectors are 32x3 legs. Side with 2 connectors is inserted into case. Side with single connector joins 102 to 103; 100 should be connected to sound and input ports. Case has a connector with 11 legs (most likely video + controls), only 9 legs are wired. There are also 8 other wires connected to the case (most likely GND + PWR) The only western parts are the 10 EPROMs, all the rest is Russian conversion table ----------------------|------------------- Russian part number | Western equivalent in western characters | | K155IE7 --|-- TTL 74193n K155IR13 --|-- TTL 74198n K155LN2 --|-- TTL 7405n K555AP6 --|-- TTL 74ls245n K555ID4 --|-- TTL 74ls155n K555ID7 --|-- TTL 74ls138n K555IE7 --|-- TTL 74ls193n K555IR23 --|-- TTL 74ls374n K555KP7 --|-- TTL 74ls151n K555KP11 --|-- TTL 74ls257n K555LE1 --|-- TTL 74ls02n K555LI1 --|-- TTL 74lS08n K555LL1 --|-- TTL 74ls32n K555LP5 --|-- TTL 74ls86n K555TM2 --|-- TTL 74ls74n KM555TM2 --|-- TTL 74ls74j KR1533AP6 --|-- TTL 74als245n KR1533IR23 --|-- TTL 74als374n KR1533KP12 --|-- TTL 74als253n KR1533LA1 --|-- TTL 74als20n KR1533LE1 --|-- TTL 74als02n KR1533LI1 --|-- TTL 74als08n KR1533LN1 --|-- TTL 74als04n KR1533TM2 --|-- TTL 74als74n KR531RU8 --|-- TTL 74s189n RAM 64b 3-state KR531TM2 --|-- TTL 74s74n KR537RU8 --|-- SRAM 8Kb KR541RU2A --|-- ??? KR556RT11 --|-- PROM 256x4 TS (equivalent to 82S129) KR556RT17 --|-- PROM 512x8 ts (equivalent to 82S141) KR580GF24 --|-- Clock generator and driver (equivalent to 8224) KR580VI53 --|-- Programmable interval timer (equivalent to 8253) KR580VK28 --|-- System controller and bus driver (equivalent to 8228) KR580VM80A --|-- Main CPU (equivalent to 8080) KR580VV55A --|-- Programmable peripheral interface (equivalent to 8255)