I've changed a few ics and other parts headers and sockets to repair this mpu from corrosion. Lotta little hitches here and there but I finally got it booting up with 7 flashes. But since removing the battery it went to defaults, sounds etc.
Now, I can't get past option 5 to set anything. This was an existing problem before the rework, by the way) i've found snippets that seem to be similar here and there but no luck for me.
I may be making some false assumptions as how to test this too, I've heard hold the button, tap the button and i found even another button hiding on the right underside of the playfield. Also do i need to reconnect a battery to even get the other options?
The Dip switches may well have been accidentelly changed if that makes a difference... I don't have a good pre-picture.
I can follow a schematic if someone can give me ideas.. Thanks

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No luck there... just starts over after the fifth push. I've tried 2 -5101s cause i thought i bought one to fast -1. The last i ordered a 5101l-3 and got a 5101l-C(from pbr), hope thats equivalent. Anyways pushed the red switch on the board at different times and no luck. I've tried grounding all the pins, i've replaced U8 socket

Well a little progress... didn't change anything yet but with hard pushing and timing the button. Actually got to option #18 and changed it to 3 with the replay button. After turning off and on nothing changed, but I didn't have a battery in it. I haven't been able to repeat getting through the options again so I'll try to change out that button and put in a battery next.

Although it seems to hang at diff times most often it hangs after it blinks the lights then checks all the solenoids before the actual audit. If i press the board button it'll lock till restart. Replacing the battery didn't change thing either. Tried a different 5101 with worse luck. Don't have a probe either.... Haven't been able to get back to #18 again. Sometimes ill see the audit #s start to go by, but it'll lock or just start over. I cleaned but still haven't replaced the button...

I've tried 3 different 5101lc chips and still can't change settings. I've replaced both PIAs , U8 & U14 & 555 timer and assorted components during board rebuild, but remember this was a prior problem. I've checked many traces around the areas with no luck. is there any other chip I should replace?

No, it wasn't the button.
couldn't find the post you described.

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I've got the 6800 & 6810 ordered... hopefully its one of those. Pretty much only the roms left that.

S33 is ok. I've also replaced all of the socketed chips with no luck.

To make things clearer... check this out...
As soon as I get to #5 it doesn't actually hang, but it reboots itself everytime.

SeltTest_(resized).jpg

Another discovery... TP2 is 14.7v instead of 11.9v could this be important?

1) 5.2v 2) Yes 3) That time I pressed the buttons I went right past 5 and didn't stop till i got to 18. 4) Yes its playable, but in default mode, beeps and buzzes instead of sound effects...

Unfortunately no change. Still reboots at step 5.