[Jan/21/2001]

Mechanized Attack
(C) SNK 1989

Hardware is likely similar to Beast Busters

Top PCB A-8002-1
Bottom PCB: A-8002-2

CPU: 68000
SND: Z08400 (40 Pin, compatible to Z80), YM2608B, YM3016
XTal's: 12.000Mhz, 8.000Mhz, 
        8.000Mhz (Resonator?)
DIPS: 2 x 8 position
RAM:    TOP - 62256 x 2
              6116 x 5
     BOTTOM - 62256 x 4
              6264 x 4
              6116 x 2
CUSTOM CHIPS: SNK-CG 22A078802 CGO (x 3, 1 on top, 2 on lower PCB)
              SNK-CK 22AO78801 CLK (x 1 on top PCB)


ROMs
-------------------------- 
MA1         27C512
MA2         27C301
MA3         27C512
MA4         27C1000
MA5         27C1000
MA6         27C1000
MA7         27C1000
MA8         27C512
MA9.        512K Mask Rom
MA089P13    4M Mask Rom
MA189P15    4M Mask Rom
MA289P17    4M Mask Rom
MA389M15    4M Mask Rom
MAB189A2    4M Mask Rom
MAB289C2    4M Mask Rom

Two interesting things to note.....
roms MA8 and MA9 are identical AND match 4 roms from Beast Busters (that are also identical)
These roms contain mostly 0's but have something different near the end of the image.

-