_______________________________________________________________________________________________________________________________________________
|                                                                                                                                               |
|                                           ____________               ____________               ____________               ____________       |
|                                          |T74LS125AB1|  ____        |T74LS125AB1|  ____        |T74LS125AB1|  ____        |T74LS125AB1|  ____ |
|                                          -------------  |  |        -------------  |  |        -------------  |  |        -------------  |  | |
|                                           ____________  |  |         ____________  |  |         ____________  |  |         ____________  |  | |
|                                          | SN74F245N |  |  |        | SN74F245N |  |  |        | SN74F245N |  |  |        | SN74F245N |  |  | |
|                                          -------------  |  |        -------------  |  |        -------------  |  |        -------------  |  | |
|                                           ____________  |  |         ____________  |  |         ____________  |  |         ____________  |  | |
|       ___________   ____________         | SN74F245N |  |  |        | SN74F245N |  |  |        | SN74F245N |  |  |        | SN74F245N |  |  | |
|      |4116R-001  | |X74LS32B1  |         -------------  |  |        -------------  |  |        -------------  |  |        -------------  |  | |
|      ------------- -------------                        |JP|                       |JP|                       |JP|                       |JP| |
|       ___________                                       | 4|                       | 3|                       | 2|                       | 1| |
|__     ___________                         ____________  |  |         ____________  |  |         ____________  |  |         ____________  |  | |
   |    ____________  ____________         | 74LS244N  |  |  |        | 74LS244N  |  |  |        | 74LS244N  |  |  |        | 74LS244N  |  |  | |
 __|   |SN74LS257SN| |4116R-001  |         -------------  |  |        -------------  |  |        -------------  |  |        -------------  |  | |
|__    ------------- -------------          ____________  |  |         ____________  |  |         ____________  |  |         ____________  |  | |
|__     ____________  ____________         | SN74F245N |  |  |        | SN74F245N |  |  |        | SN74F245N |  |  |        | SN74F245N |  |  | |
|__    | 74LS157N  | | 74LS157N  |         -------------  |  |        -------------  |  |        -------------  |  |        -------------  |  | |
|__    ------------- -------------          ____________  |  |         ____________  |  |         ____________  |  |         ____________  |  | |
|__     ____________  ____________         | 74LS244N  |  ----        | 74LS244N  |  ----        | 74LS244N  |  ----        | 74LS244N  |  ---- |
|__    | SN74LS08N | | SN74LS08N |         -------------              -------------              -------------              -------------       |
|__    ------------- -------------                                                                                                              |
|__     ____________  ____________                                                                                            ____________      |
|__    | SN74LS08N | | SN74LS08N |                                                                                            |HSRM2264LM10     |
|__    ------------- -------------                                                                                            |__________|      |
|__     ____________  ____________                                                                                                              |
|__    | 74LS138N  | | 74LS138N  |                                                                                                              |
|__    ------------- -------------                                                                                                              |
|__     ____________  ____________  ____________   ____________   ____________  ____________  ____________                                      |
|__    |  74LS244N | |  74LS244N |  |T74LS32B1 |   |MC14017BCP|  | T74LS14B1 | | GD74LS393 | |T74LS125AB1|                                      |
|__    ------------- -------------  ------------   ------------  ------------- ------------  -------------                                      |
|__      .........     .........    ____________                                                                                                |
|__      .........     .........    | 74LS138N |                     _________                                                                  |
|__     ___________   ___________   ------------                     |       |                                      ______                      |
|__    |4116R-001  | |4116R-001  |  _________________                |       |                                     | HU  |        HSRM20256LM12 |
|__    ------------- ------------- |                |                |  BT1  |                                     |C6270|          ___         |
|__      __________  ____________  | NEC D4465C     |                |       |                                     |     |         |  |         |
|__     | TC4011BP|  |SN74LS373N | |________________|                |_______|                                     |_____|         |  |         |
|__     -----------  -------------  _________________                                                                              |__|         |
|__    ..... ___________     ____  | TOURVISION BIOS|                                                                                           |
|__         | 74LS138N |     |XT1| |                |                                                     ______     ______          ___        |
   |        ------------     |___| |________________|               ____                                 | HU  |    | HU  |         |  |        |
 __|    IC_  _____________                   ________              |    |                                |C6280A    |C6260A         |  |        |
|      |36| |  74LS244N  |  _________________________              | PT |                                |     |    |     |         |__|        |
|      ---- -------------  |                        |              |____|                                |_____|    |_____|                     |
|  ________  _____________ | NEC D8085AHC           |    ___________   ___________   _______                                       HSRM20256LM12|
| | DIP 2 | |  74LS244N  | |________________________|   | T74LS14B1|  |MC14001BCP|  |LM393N|                          ________                  |
| --------- --------------  _________________________   ------------  ------------  --------                         |D74HCU04C                 |
|  ________  _____________ |                        |    ___________                                                 ---------                  |
|  ________ |  74LS244N  | | NEC D8155HC            |   |  7407N   |                                             ____                           |
| | DIP 1 | -------------- |________________________|   ------------                                             |XT2|                          |
| ---------          ____                _____________         _____________                                     |___|                          |
|                    JP107              | JP 106     |        | JP 105     |                                                                    |
|                    ----               --------------        --------------                                                                    |
|_______________________________________________________________________________________________________________________________________________|

IC36  = ST NE 555N 99201
XT1   = 6144 KSS1H
JP107 = 2-pin connector
JP106 = 14-pin connector to 2-digit 7 segments display
JP105 = 16-pin connector (unknown functionality)
PT    = Push-type switch
BT1   = 3.6 V battery 
XT2   = 21.32825 MHz UNI 90-H
JP1-4 = Carts slots