Matt's Basement Arcade
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Big Guns Pinball - Rom Upgrade Set
CPU 2 Rom Set [U26, U27] Version L-8 (This listing is the most current official release?)
L-A version notes / tune up guide is available from ipdb.com. https://www.ipdb.org/files/250/Williams_1987_Big_Guns_Notice_of_Big_Guns_ROMS_Revision_A_cover_letter_only_dated_June_9_1988.pdf
Revision History: (Included for reference)
Game Version L-8
U26 : Checksum: 9256
U27 : Checksum: 03D0
Sound Revision History: (Included for reference)
Sound Version L-1
U4 : Checksum: 84B0
Speech Version L-1
U19 : Checksum: 1DAF
U21 : Checksum: 4D54
U22 : Checksum: 844C
This is an officially licensed replacement part. Please view my shop policies for more information.
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