hook machine,,, getting slam tilt whenever skill shot upper switch 1 gets activated , no obvious loose wire that I can see, looked at switch matrix chart both are on row 7, my simple and probably incorrect conclusion is that somewhere there is a short to the slam tilt switch? any ideas on how to proceed? thanks

thanks for the reply, maniac 40, will try tonight, if you can share your thought process on trouble shooting this , it would be great , I infer all switches should read open without the balls, if one reads closed what does that mean? ( would you expect it be in that row ?)

thanks always good to know the why behind the how!, maybe you missed but hook machine ( 3 balls ) not jp

Ok no switches closed when balls are out of trough,did a manual check of all the switches they all register when closed but the slam tilt does not,will check it again with door closure switch on, otherwise thanks for further Inut

thanks for your help, new at this and not sure of all the terminology , I think I did both tests, on active switch with no balls in trough no switches are closed , when I put the balls in the trough the three trough switches( left ,middle and right) all read closed,

when I go around the machine and manually activate the switches ( is this called the switch edge test? ) they all read out on the dmd except the slam tilt switch does not ( regardless of door closure switch status),

new to this and factors at play I do not grasp yet and the tilt switch status may be a red herring , but if there was a short in the slam tilt switch wouldn't it read as closed?

will try to send one this afternoon , not much to see on it looks relatively new with what appear to be good connections , did not check it for continuity but took the column wire off that feeds it ( from coin door ) and still got slam tilt

double checked the slam tilt switch it does register, it seems it would take a big blow to get it to activate during play! during game mode activated all the other switches on row 7 and pretty much all the switches the only one that triggers the slam tilt is #31

no luck with the play field tap test , the individual sling switches are ok

reading up on switch matrix trouble shooting bunch of questions. I have some fuzziness...

to check diodes on switches need to unsolder or clip one end and then resolder if good?

on the matrix 31 switch is a c7 r7 ( slam tilt(7) is c1 r7) the diodes to check would be all the ones in row 7 ? or check the diodes of the corners of the box c4r4 c7r4 c7r7 c4 r7?

Can I say it is a playfield issue or can it be a board issue? Do I need to check at the board in the back box by jumping across the matrix ? at connector 8 and connector 10 ? a diode is needed on the one end of the jumper?

any tips on getting the connectors off the board, looks like they have a little locking flap on the top that needs to get pried up, use small screw driver or other?
feel free to answer any or all for the newb!

posted my trouble shooting issues in tech so it has a separate thread , look like board issue, thanks for all the input and feel free to provide your thoughts !

hope this works, thanks for your help pinballmaniac would love to hear your thoughts

https://pinside.com/pinball/forum/topic/hook-slam-tilt-phantom-need-board-repair-