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Thread: Sega CDX second controller port dead

  1. #1
    Nameless One GreasyWolverine's Avatar
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    Default Sega CDX second controller port dead

    As the title suggest, my second port has gone dead. I have tried multiple controllers. No input works. I have tried to find some info on what the suggested fix is. Unfortunately all I can find is advice for model 1 and 2 consoles. Most of the time the posters just suggest buying a whole new console. Thats not the route I want to go, as the CDX is expensive and rare. My CDX works perfect other than the dead controller port. I don't want to just abandon it. I am experienced with soldering so I am not afraid to fix it, but I have heard the CDX is a tough beast to work on. Honestly at this point I'd be willing to pay for a repair, but I'd like too get some input from the best SEGA community online. Do you guys suggest I try to fix it? Is it a simple thing? Or would you guys just send it to a repair pro? If so who do you guys suggest? I am a little weary of sending my CDX off.

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    Hedgehog-in-Training Hedgehog-in-TrainingNameless One pyroesp's Avatar
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    Can't really seem to find a schematic for the CDX so it's not going to be easy to repair.
    The good thing is you have 2 ports so you can measure on the working port and compare it with the measurements on the non-working one, if you want to try it yourself.

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    Video Game Modder Outrunner segasonicfan's Avatar
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    The CDX is a very difficult system to work on, and I don't recommend touching it unless you have 10 years or more soldering experience under your belt. Back when they sold for fifty bucks working, it was a different story but that was many years ago.
    I've repaired a lot of these over the years and I have a lot of experience reverse engineering them and parts on hand. However my repair rate also reflects my skill set, the quality of work that I do, and the availability of my schedule. You might be able to find somebody much cheaper around here.

    A controller port issue could be a big problem, possibly even needing to replace the ASIC. That's a tall order, if you ask me.
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    Comrade as in friend. Master of Shinobi ComradeOj's Avatar
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    I've fixed controller ports on model 2s a few times. It was always a broken/cracked solder joint. Just heat each of the connections with a soldering iron on the second controller port, and put a touch of fresh solder on top. It will create a new solid connection. Hopefully it's just that simple.

    I don't know about CDX's. I'm sure they are tricky to take apart and put back together.
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    Video Game Modder Outrunner segasonicfan's Avatar
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    Thanks for the tip, comradeOJ, that's helpful to know that it might not be such a difficult job. There are some guides to taking the system apart, just follow them closely and don't bend the pins (or force anything). Go slow and take your time and you should be all right.
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  6. #6
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    Quote Originally Posted by pyroesp View Post
    Can't really seem to find a schematic for the CDX so it's not going to be easy to repair.
    The good thing is you have 2 ports so you can measure on the working port and compare it with the measurements on the non-working one, if you want to try it yourself.
    I saw the service manual for it on ebay once but it was sniped in 5 minutes.

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