Cue ball wizard blows fuse

(Topic ID: 209829)

Cue ball wizard blows fuse


By pblover

11 months ago



Topic Stats

  • 13 posts
  • 4 Pinsiders participating
  • Latest reply 47 days ago by wayout440
  • Topic is favorited by 1 Pinsider

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    #1 11 months ago

    I have a Cue Ball Wizard by Gottlieb Premier 1992, that blows skill shot fuse F27 2a sb on 3rd ball with 2 ball multiball that happens every 3rd ball. Ive replaced driver chips, filter board parts, opto sensor board and both optos, and finally upgraded to a new driver board made by Rottendog Amusements. I've researched on line and have seen forum report of a software issue that I'm not sure was ever resolved. I can't find a software version on the machine setup and the roms only have 734 and rom type marked on them. I'm in need of experienced wizard.....

    #2 11 months ago

    I've never had that problem myself, but have heard someone had a perfectly playing machine for a long time, and then this error cropped up with nothing changed on the machine. Doesn't sound like a software problem, and I havn't found anything to confirm there is even more than one version of CBW software.

    The only other thing I found online was this:

    Quoted from RampShot11:

    I had the same issue when I first got my CBW, the 8 ball shooter coil (coil # 19300) started smoking and melted to the shooter assembly. It turned out the Driver board transistor was fried.
    I think it was Q10 if I remember correctly. Try to find Q10 on the driver board and see if it is fried. Anyhow, I ended driving up to Steve Young at PB Resource and purchased a new driver board for about 90 bux. So far so good with blowing a fuse once in 3 months.

    #3 11 months ago

    Inspect your grounds in the bottom of the cabinet. These can cause bizarre problems such as this. Much info available on line with illustrations.

    http://www.pinrepair.com/sys3/#gnd

    #4 11 months ago

    thanks wayout440 , I have experienced q10 cooking on the older board and had a number of
    Buzz 72's I replaced but without luck. so I went to the new driver board with heavier duty transistors.

    thanks paragon66x , Ill check out and beef up the grounds, something I haven't tried.

    #5 11 months ago

    Good luck, let us know when you solve it.

    9 months later
    #6 49 days ago

    Hi, have you or anybody confirmed if this may be a software issue? I have the same exact issue going on. I have also taken the same steps as above. thanks for your time and any help.

    #7 49 days ago
    Quoted from shadyj7:

    Hi, have you or anybody confirmed if this may be a software issue? I have the same exact issue going on. I have also taken the same steps as above. thanks for your time and any help.

    Doubtful, as there is only one version of software for CBW. The stock MosFETs Used should be beefed up to more robust types.
    See:
    Replacement MosFETs for Gottlieb System3 Driver Boards.
    http://www.pinrepair.com/sys3/

    #8 48 days ago

    Wayout440 Thanks for your response. Unfortunately I have tried all of these steps. It is strange that it blows the fuse only on 3rd ball as stated above. But I have found from using a larger fuse that what is happening seems to be that the coil is locked on after engaged one time After ball 3 your shot

    #9 48 days ago
    Quoted from shadyj7:

    Wayout440 Thanks for your response. Unfortunately I have tried all of these steps. It is strange that it blows the fuse only on 3rd ball as stated above. But I have found from using a larger fuse that what is happening seems to be that the coil is locked on after engaged one time After ball 3 your shot

    Bizarre. I'm not even sure what the next step should be. Please PM me, I will look at my ROMs when I am home later and see what is marked on them. I'll help you dig into this as best I can.

    #10 48 days ago

    ROM label and checksum from fully functioning game posted below

    1205181529a~01 (resized).jpg1205181532~01 (resized).jpg
    #11 48 days ago

    Hey thanks. I will compare the check sum in the morning. Thanks again!

    #12 47 days ago

    It was the same version and check sum. Thanks for helping me rule that theory out.

    #13 47 days ago

    I'd say to do the ground mods. I've read that the opto board signal can double bounce or stick, and the software wasn't written to compensate that. You've already replaced the opto board - but the output from it needs to be spot on. If you are getting noisy grounds to the comparator on the opto board that might be responsible for a double bounce or sticking switch signal. The ground mods should be done anyway as a host of reliability issues can be solved by them - and this could be one of those.

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