pinbot board question

Gorf69

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Update. Took better pictures.

I have copied this picture from a website but it has the exact same burn marks as my board. Only mine is a bit worse. On the right side of the picture below the marking R107.
Does anybody know:
what is causing this?
Will it affect my game?
Should I do anything to my machine so this dosent get worse?

Thanks for any suggestions.
 

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Last edited:
Yeah, bigger photos would help.

Looks like a fried transistor for a special solenoid, IIRC. Check that your fuses are the correct size, and you're probably going to find a toasted coil somewhere too.

-Hans
 
I will grab some pics of mine.

I am guessing it might be the sand resistors that create so much heat that they stain the board with an updraft. Was really bad on my Alien Poker. Used some tips from Hhaase and now my board runs cool as a penguin (on AP, have not dome it to PB, or know if it is possible)
 
Last edited:
I will grab some pics of mine.

I am guessing it might be the sand resistors that create so much heat that they stain the board with an updraft. Was really bad on my Alien Poker. Used some tips from Hhaase and now my board runs cool as a penguin (on AP, have not dome it to PB, or know if it is possible)

Not sure if that idea works on Pinbot or not, haven't really dug into the System 11's much. Do the System 11's even have the hot resistor issue?

In this case though, it looks like the transistor itself fried.

-Hans
 
Going by the schematics, your left jet bumper is probably dead with a fried coil. You need to get that coil taken care of, and the jet bumper fully adjusted, plus replace the fried transistors on the board. Your solenoid fuse is probably wrong too, that should have blown a fuse before frying the transistor.

Realistically, it's hard to tell from the photos how bad the board is. Could be fine, could be fried, won't be able to tell until you get in there with some alcohol and a soft toothbrush to clean off all that carbon. Depending on your skills in repair, may need to send the board out for repair.

-Hans
 
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