(Topic ID: 228542)

Williams Fire won't boot up

By boosman

5 years ago


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#14 5 years ago

did you acquire this game with this problem? or was it working and then this issue started? did you touch up the solder joints or was it like that? the flux is ugly, but cleaning it up wont really have any effect on the function of the chip.

#22 5 years ago

What is the 5v actually reading at TP2 to TP4? On the main board, not the Power supply.

#24 5 years ago

I disagree, These things will run just fine a tad under 5V, At the main board. But what do I know, Im a Newb.

#26 5 years ago

PIA is bad. Remove the chip and install a new socket and new 6821.

#28 5 years ago

Boosman, if you aren't comfortable desoldering and installing a 40 pin chip, I have done 50-60 of these on a system 11 boards. Pm me if you want the help.

1 month later
#42 5 years ago

sounds like the Blanking Circuit and/or the Clock circuit

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