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Title: Mikie bootleg repair log Post by: Zabanitu on January 14, 2012, 10:55:09 AM hi all.
this board was dead: no sync out. found LS368 @9F and prom @12D in inverted positions- the LS368 replaces the original 18.4MHz monolytic oscillator with a xtal resonant circuit. then the sprites appeared jailbar alike: found a faulty LS86 with dead output @5D (driving A6 of the eproms). found also a ripped off TIP120 for the coin counter near the edge connector. |