[Jun/18/93]

Atari Star Wars EPROMs

part number  board & loc  checksum  type
-----------  -----------  --------  --------
136021.114   main   1F    661a      27128-3
136021.102   main   1H/J  571e      2764-25
136021.203   main   1J/K  73dd      2764-25
136021.104   main   1K/L  f839      2764-25
136021.206   main   1M    0210      2764-25
136021.105   vector 1L    91d1      2732A-25
136021.107   sound  1J/K  6509      2764-25
136021.208   sound  1H    9358      2764-25

.214 fixes a bug where no stars appear at startup


Rom locations

1 1 2 1 2   main board
1 0 0 0 0
4 2 3 4 6

1 2         sound board
0 0
7 8

HARDWARE:  Star Wars game board.
SYMPTOMS:  When game first turned on, no starfield background pattern
           (noticable during demo display).  When game is played,
           everything appears normal until you select a difficulty
           (deathstar).  Once your ship leaves the menu, no starfield
           background nor enemy attackers (tie fighters) nor deathstar
           ever appear.  Gameplay is otherwise unaffected (you can aim,
           fire, etc).
SOLUTION:  Check the four 18-pin socketed ROMs 136021-110 through 113 at
           locations 7H, 7J, 7K, 7L in the middle of the main game
           board.  At least one of these is bad.  These are 1024x4
           bipolar 82S137 (Signetics) PROMS which contain the microcode
           for the math box.  In my case -112 was bad.

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