Sacramento, CA
Im working on my wh20. The river and lite bounceback targets are not working. They were working fine and then stopped. I don't have a manual yet, which fuses are used for these targets? Thanks.
(Topic ID: 10829)
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1 week later
Quoted from robertmee:Pull the Switch Matrix connectors....Column and Row.
Go into switch edge diagnostic mode
Take a jumper and go through every combination of connecting the column pins to row pins...IE, Column 1 to Row 1, Column 1 to Row 2, etc....
See if every switch registers that should (look at the matrix in the manual).
You probably shorted coil voltage to the switch matrix and blew one of the column transistors or an IC chip.
did this test. j206 pin 3 did not register at all. whats the next step? also, i noticed a new problem that might be related. when the ball rolls over a outlane swith that is lit, the game resets. if it rolls over an outlane switch thats not lit , no reset.
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