[MAME]

Target Ball
Yunsung, 1995

PCB Layout
----------

YS-2002 YUNSUNG
|---------------------------------------------------------|
|  M6295  M6295   Z80              4MHz       YUNSUNG.110 |
| YUNSUNG.113   YUNSUNG.128                   YUNSUNG.111 |
| YUNSUNG.85     6264                                     |
|                                             YUNSUNG.92  |
|                                             YUNSUNG.93  |
|                                                         |
|                6116                                     |
|                6116              6116                   |
|J               6116                                     |
|A                                                        |
|M                                            6116        |
|M                                            6116        |
|A                            |-------|                   |
|                             | ACTEL |                   |
|                             |A1020B |                   |
|DSW1(8)                      |PLCC84 |                   |
|         12MHz               |-------|                   |
|                           4464                          |
|                           4464     YUNSUNG.114          |
|                           4464     YUNSUNG.115          |
|DSW2(8)                    4464                          |
|                                                         |
|---------------------------------------------------------|
Notes:
      Z80 clock: 6.000MHz
     6295 clock: 1.000MHz (both), sample rate = 1000000/132 (both)
          VSync: 54Hz

 note even with these settings game runs slightly faster in Mame than real PCB

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