Williams Solved Pat Hand (Williams, 1975) will not register bonus score

[jdapolito]

have a pat hand by williams
everything works except when you hit all the "card " rollover targets twice the double bonus lights up but when the ball drains the score reel just keeps scoring and never stops the double bonus switch is activated and the light on the playfield lites but then it just keeps scoring the contacts on the switch all look good
help!
thanks

 

[jdapolito]

Just to update everyone .I got a schematic fr the game noticed that two of the stacks on the motor score unit were supposed to be in the forward position .on my game only one was in this position.I moved the one to its proper place and that did the trick