Mousin' Around!
Bally, 1989You're currently viewing posts by Pinsider SilverUnicorn.
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Calling System 11 gurus! Mousin Around - Bally 1989 - seller stated it worked before moved - I believe them, they are honest. Anyway, it does this now. Many switch errors and weirdness.
There are 2 yellow wires in the back that are not attached. I think they go into the IDC connection on the back pa el, but I THINK that is for lights. I connected them together with no change.Clearly there’s a switch matrix issue, but how to troubleshoot?
Any ideas?
Chris
So based on the errors in the test report -
Switch 17 - Mouse "M"
Switch 32 - Enter mouse hole
Switch 41 - Trap 1 ball
Switch 47 - Enter left ramp
Switch 49 - Ball Diverter
Malfunction - check motor down
Malfunction - check diverter
Malfunction - Check Right trap
The Outhole is also not registering.
In looking at the switch matrix, it looks like the M, Outhole, Trap 1 Up/Down, Trap1 Ball, Diverter, and right flipper are all on the same row so it looks like there may be an issue there. Will have to read up on this.
Mousin Around switch matrix (resized).pngQuoted from sbmania:You will see on the switch matrix that every individual switch has a corresponding row and column pin. For example, the outhole uses 1J8 pin 2 and 1J10 pin 9. In switch test, if you remove both of those connectors (1J8 and 1J10) and short the pins 1J8-2 and 1J10-9 with a jumper or short piece of wire, the switch should show a closure. If it does, the MPU board is good and you have a problem in the wiring from the connectors to the switch, or a bad switch itself. If it doesn't show a closure, then you have a problem on the MPU.
If on the MPU, try to see on the schematic if all of the bad switches go to the same chip. If so, that's probably needing to be replaced.
If wiring is suspect, make sure the switch is good by shorting the wires on the switch itself. If the switch is good, look for a wire which broke free from its solder joint. Switches are daisy chained in the same row and same column so a bad solder on one switch will take out all of the remaining switches down stream.
I find its helpful sometimes to start with the first switch and physically trace the wires to the next switch in the column and the next and so on until you have physically inspected all switches in the matrix. Usually you will find the problem, and its usually a double wire where one of the wires has broken free from its solder joint.
Thank you for the explanation. I will try to work on this tonight when I get home from work.
Chris
Quoted from sbmania:Inquiring minds want to know! What's the status on the fix SilverUnicorn?
Nothing yet 
I broke a wire on the M target so I fixed that. We're still at the same point though. Gotta keep digging.
Chris
Quoted from PinballManiac40:Yellow and red wires are lamp matrix, so I would imagine you can figure it out from the lamp sockets that have one or two wires missing and looking at the lamp matrix, which is in the manual.
Well poop. That wouldn't fix switch issues then?
Chris
Quoted from djblouw:I don't have any clearer photos right now, but looking through my tear down pics and the manual, these do indeed go to that connector.
The two Yellow-brown wires should be hooked together, and it looks like the go in the second to last slot of the IDC connector. This is the common connection for all the letters in "MILLION" so just double check that that pin on the light board goes to all of them.
The Yellow-violet wire only goes to the Jackpot light, and it looks like it goes in the very first slot.
[quoted image]
This helps very much, thank you! Now do get an IDE punch tool.
Chris
Quoted from SilverUnicorn:This helps very much, thank you! Now to get an IDE punch tool.
Chris
Quoted from snyper2099:Regarding your switch issue, your WHT/Brown wire has lost its connections somewhere under the PF. I would use a jumper wire from the Wht/brn wire on a switch that works (the outhole or “T”?) and run it to the wht/brn wire on one that does not.
Then, go to test mode to see if it’s resolved.
If you have none working, run the jumper to the board where wht/brn connects and see if that works. If not, you could have a board issue.
Thanks, I will give this a try once I can get back into the basement. I tore some ligaments in my knee yesterday, so steps are not so great right now
Chris
Quoted from snyper2099:Regarding your switch issue, your WHT/Brown wire has lost its connections somewhere under the PF. I would use a jumper wire from the Wht/brn wire on a switch that works (the outhole or “T”?) and run it to the wht/brn wire on one that does not.
Then, go to test mode to see if it’s resolved.
If you have none working, run the jumper to the board where wht/brn connects and see if that works. If not, you could have a board issue.
Hobbled down to the basement to try this. You are correct that when I jumpered the White/Brown wire from the working tilt bob to the M target, it registered in the switch test, Same with all the others. I did not find any disconnected wires. COuld it be a diode that's bad?
Unrelated but now I have lost all insert lights as well. Ugh!
Chris
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Quakertown, PA