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Blitz 99 4 Player 49-Way Control
Cenzo:
Hello,
I just acquired a 4-player Blitz '99 arcade game. Everything works fine except for the #4 player joystick. It works great for up, down, and right, but when I press to the left on the joystick, it goes to the right.
I am new to the arcade scene and am hoping one of the gurus here may be able to shed some light on this situation for a newbie. Any help would be greatly appreciated.
Much thanks in advance!
Vince
MonMotha:
There are several optical sensors on the stick. Check that they all work. This can be verified by using a multimeter on the voltage setting and checking the output of the sensor right up at the stick while the machine is on. Sometimes, it's just an obstruction like a piece of paper. Sounds like one of your sensors is not working or blocked.
Cenzo:
I cleaned out the dust in the cabinet. I took the joystick apart as well as the housing and cleaned it. I found a wiring diagram on the net and verified the wire colors on both ends are correct. While doing all of that I found what appears to be corrosion or a spill on the ?joystick connection board? Forgive me for not knowing the correct term for this board. Is this corrosion able to be cleaned off and the joystick work or will it have to be replaced? Hopefully if it has to be replaced I can get it easily and also that it wont be terribly expensive. See attached pics:
Thank you again for your help!
Vince
MonMotha:
That particular board is called an I-40 board. Midway used it to multiplex all the joystick inputs together since their Seattle hardware didn't have enough inputs to handle all of those 49-way sticks. Looks like you have some parts that may be corroded or burned up. That could cause your problem. Is that corrosion near the input for joystick number 4? I don't have my I-40s handy to look at.
Given that the board still works, it can likely be repaired if it is the fault, but you may have to solder some of those surface mount passives (it's not nearly as hard as people think). Replacement boards, when you can find them, are generally $20-100, depending on the market. I have a spare or two laying around if you end up needing one.
Cenzo:
I found 1 of these adapters online but it is untested and also $79.99.
http://www.kpsurplus.com/products/view/26163
and also on ebay the same seller from the pervious site:
http://cgi.ebay.com/Midway-Games-5772-15636-I-40-Adapter-Board_W0QQitemZ200392456813QQcmdZViewItemQQptZVideo_Games_Accessories?hash=item2ea8523a6d
$89.99 and untested.
I'm hoping that someone here has one to sell or knows of a better place to get the board that is working and cheaper.
Thanks for your time
Vince