flash knoker not working please help

[studley67]

this simple little problem(you would think) has got me stumped.
so far replaced the whole driver section right through and including pia 5 &10.ie.tip120,2n4401,7408.new coil also new plunger.

it works in test however not in replay mode,but the electronic sound does work for a replay.

any ideas guys,i am thinking this(fault) must be on the mpu board

[PinPal]

Have you tried setting the game back to factory settings?

[studley67]

its not a dmd,not sure how to do this

[studley67]

i know just pull the batteries.

[studley67]

it bloody worked

[studley67]

thanks heaps pinpal

[PinPal]

Top stuff        I no with my Flash I had it set to Free Play and for sum raeson the knocker dident work, so I set it back to factory and the knocker started to work again.

[studley67]

just did the same thing,set free play,no knocker

[goodolddays]

set free play,no knocker

I think that is normal for early Williams SS at least

[mildflame]

set free play,no knocker

I think that is normal for early Williams SS at least

overall it does make sence, why have a knocker that symbolises a free game if the machine is already set to free play?