Addams Family, The
Bally, 1992You're currently viewing posts by Pinsider zaza.
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Without a logic probe you can test in another way by 'pull low' base Q62 (2N5401) with a 470 ohm resistor.
If this fires sol#7, the 3 transistors ( Q62-Q67-68) are working.
And if sol#15 'Right Slingshot' fires in solenoid test, data D6 is functional.
In that case U5 is likely the problem.
Quoted from PittPin:Since #15 did not fire what does this indicate?
Possible the dataline D6 doesn't work on the powerdriver.
Let's test that. Go into single lamptest and test all lamps. Do lamps work on lamp column7 and row7 ?
If not, reseat the ribbon cable between cpu- and powerdriverboard.
Quoted from PittPin:explain the relationship between D6 and col/row 7?
The picture TerryB posted in post#20 shows the data lines D0-D7 on left side of U5.
Those lines are travelling all over the drivertboard and data D6 is used for sol#7, but also for lamp row+col 7 and some more.
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