(Topic ID: 313815)

Pinbot right sling switches and no music issues

By InfiniteLives

4 months ago



Topic Stats

  • 2 posts
  • 2 Pinsiders participating
  • Latest reply 3 months ago by Shogun00
  • Topic is favorited by 1 Pinsider

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#1 4 months ago

Hey everyone,

I've had my pins folded up for ~2 years while we were finishing out basement.

Figured I would start with Pin*bot trying to get it up and running first as I knew there were a few issues. I tracked down and fixed most things but I am stuck on these two:

1) The right sling shot switches do not work. The scoring switch does work and the coil fires in test mode. These switches are not part of the switch matrix so I am a bit lost on what to look for.

2) I have all the sound effects but I do not have any music. I previously replaced all the eproms with new ones. I swapped out the sound board with one I had when I had another System 11 in the house and the sound board works fine. I have read that some of the sound is generated on the MPU as well as the soundboard in pinbot so I probably have an issue somewhere on the MPU.

For what its worth, For several years neither of these were an issue and the game operated 100%

Any help would be appreciated

Thanks!
Dave

#2 3 months ago

1.) Port 1J18 on the MPU is for the special solenoid switches. Also, there is a bit more detail on Pinwiki.

https://www.pinwiki.com/wiki/index.php/Williams_System_9_-_11#Special_solenoid_problems

2.) How many bongs are your hearing at startup?

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