[MAME]

Gun Master
Metro Corp. 1994

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

MTR5260-A
|-----------------------------------------------|
|TA7222            3.579545MHz                  |
|            YM3012                      6116   |
|C3403  C3403      YM2151  M6295                |
|       26.666MHz              GMJA-7   GMJA-8  |
|            6264                               |
|J           6264           |--------|  D78C10  |
|A           6264           |IMAGETEK|          |
|M                          |14220   |          |
|M               MM1035     |        |          |
|A         |------------|   |--------|          |
|          |    68000   |               GMJA-1  |
|          |------------|                       |
|                                       GMJA-2  |
|              24MHz                            |
|       MACH110                         GMJA-3  |
|                  6264                         |
|DSW1              6264                 GMJA-4  |
|DSW2    GMJA-6    GMJA-5                       |
|-----------------------------------------------|
Notes:
      68000 clock     - 12.000MHz [24/2]
      D78C10 clock    - 12.000MHz [24/2]
      YM2151 clock    - 3.579545MHz
      Oki M6295 clock - 1.200MHz [24/20], sample rate = 1200000 / 132
      VSync - 60Hz
      HSync - 15.55kHz

68000 @ 12MHz
NEC D78C10
AMD Mach110
Imagetek 14220
YM2151 + M6295 + YM3012
RAM - CY7C199 (x2), 6164 (x2), LH5168 (x2), 6116 (x1)
DIPSW 8-position (x2)
XTAL - 3.579545MHz (near YM2151 & M6295)
OSC - 24MHz (near 68000 & Mach110)
OSC - 26.666MHz (near 14220)
ROMs 5+6 = Main Prg
ROMs 7+8 = Sound Data
ROMs 1-4 = GFX Data

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