(Topic ID: 137742)

Whirlwind (sys11b) boot up weirdness

By MarcelG

8 years ago

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Latest reply 8 years ago by pinball_faz
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Whirlwind Williams, 1990

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Power supply is good, Game Roms are good (checked in another game).
Upon switch On I get exactly 70 flashes on the Diagnostics LED and the same semi-garbled message on the display (see pic). Any ideas ?
20150901_144621.jpg

placing the faulty board in a other system 11b game , swords of fury, with the swords of fury Game Roms, yields me a "U25 Ram Failure" on the display. So ill start there.

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