lucifershalo Posted September 20, 2010 Share Posted September 20, 2010 Eventually I bought a TI99 with a scart interface and it is working!!! but the dual joystick is not.... is it notorious that it breaks and if so what is the problem most of the time? thanks it is the official one Quote Link to comment Share on other sites More sharing options...
sometimes99er Posted September 20, 2010 Share Posted September 20, 2010 http://nouspikel.group.shef.ac.uk/ti99/joystick.htm Quote Link to comment Share on other sites More sharing options...
jchase1970 Posted September 21, 2010 Share Posted September 21, 2010 something that gets me from time to time is simply check the alpha lock button, the alpha lock overrides the joystick as the both use the keyboard bus. Quote Link to comment Share on other sites More sharing options...
marc.hull Posted September 21, 2010 Share Posted September 21, 2010 Eventually I bought a TI99 with a scart interface and it is working!!! but the dual joystick is not.... is it notorious that it breaks and if so what is the problem most of the time? thanks it is the official one You do have it plugged into the left side and not the back right ? Quote Link to comment Share on other sites More sharing options...
lucifershalo Posted September 21, 2010 Author Share Posted September 21, 2010 Eventually I bought a TI99 with a scart interface and it is working!!! but the dual joystick is not.... is it notorious that it breaks and if so what is the problem most of the time? thanks it is the official one You do have it plugged into the left side and not the back right ? OMG ithought it needed to be plugged into the expansion port yes, i plugged it into the left side Quote Link to comment Share on other sites More sharing options...
nathanallan Posted September 21, 2010 Share Posted September 21, 2010 Are you using a Ti joystick? What's your setup? Atari and other joysticks don't work on the TI, they need an adapter. AFAIK only TI ones will work on it. The Atari adapters are fairly cheap to get, I have one; It splits it tinto two ports for two 2600 pinned joysticks. Quote Link to comment Share on other sites More sharing options...
sometimes99er Posted September 21, 2010 Share Posted September 21, 2010 Atari to TI Joystick Adapter http://www.mainbyte.com/ti99/hardware/cables/joystick.html Quote Link to comment Share on other sites More sharing options...
lucifershalo Posted September 21, 2010 Author Share Posted September 21, 2010 it is an official TI dual joystick but I think it is defect yes, I already saw the schematics but I am useless at building it where did you buy your adapter,nathanallan? Quote Link to comment Share on other sites More sharing options...
sometimes99er Posted September 21, 2010 Share Posted September 21, 2010 (edited) Search ebay for something like "atari ti 99 4a joystick adapter" Edit: He he, some of those adapters cost as much as a system with working TI joysticks. They don't have any adapters here, but some different joysticks here and there. http://www.texintreasures.com Back in the day, I made one of these http://www.atarimagazines.com/compute/issue39/HOW_TO_BUILD_YOUR_OWN_TI-99_4A_JOYSTICK_ADAPTER.php Edited September 21, 2010 by sometimes99er Quote Link to comment Share on other sites More sharing options...
lucifershalo Posted September 21, 2010 Author Share Posted September 21, 2010 I made a search and found the texintreasures site but the only joystick that he is selling is one that needs an adapter...useful! Quote Link to comment Share on other sites More sharing options...
sometimes99er Posted September 21, 2010 Share Posted September 21, 2010 ebay item no. 260656434660 and 170532534061. Expensive, but the last one allows offer. Quote Link to comment Share on other sites More sharing options...
zylon Posted September 21, 2010 Share Posted September 21, 2010 Amiga power sticks work if they're the Y-cable versions or you could splice one from a DB-9 Y-cable. That's what I did until I found a wico adaptor at a price I agreed with. Quote Link to comment Share on other sites More sharing options...
lucifershalo Posted September 21, 2010 Author Share Posted September 21, 2010 as I have 2 TI99 computers one is not working properly (some keys are non responsive and the video output is flaky) I tried the TI joysticks on both so my first conclusion is like I said, that the joystick are defect but I also have the MBX module I tried and the MBX joystick doesnt seem to work either 3 conclusions: -I am unlucky and thejoystick port on both computers is not working -I am even more unlucky : the TI and MBX joysticks are both damaged -I am in deep sh.... the 2 joysticks AND the 2 joystick ports are not working....... Quote Link to comment Share on other sites More sharing options...
sometimes99er Posted September 21, 2010 Share Posted September 21, 2010 Maybe the first joystick fried the port on both computers - if something like that is even possible ? Quote Link to comment Share on other sites More sharing options...
lucifershalo Posted September 21, 2010 Author Share Posted September 21, 2010 is that possible?? Quote Link to comment Share on other sites More sharing options...
sometimes99er Posted September 21, 2010 Share Posted September 21, 2010 Well, when you modify the joystick port as described below, one should take care not to connect +5V to any other pin/pad bla bla bla. http://nouspikel.group.shef.ac.uk/ti99/joystick.htm#modifying%20the%20port Quote Link to comment Share on other sites More sharing options...
matthew180 Posted September 21, 2010 Share Posted September 21, 2010 From looking at the schematics it looks like the worst thing you can do to the joystick port it to connect pin 2 to pin 7, but even then you would be connecting +5VDC to -5VDC through a 1.5K resistor, which would only produce 6ma of current while that particular stick position was held. And, all that would only happen while the joystick was being polled by software. I don't think you could blow anything by plugging the wrong joystick in, and if you do, it would be easy to fix. Matthew Quote Link to comment Share on other sites More sharing options...
lucifershalo Posted September 21, 2010 Author Share Posted September 21, 2010 thanks, for all the replies but I am not good enough to create my own adapter I will open thecomputer and see if I can detect something wrong with the joystick port I am sure that I wont see anything wrong or wont know what to look and test Quote Link to comment Share on other sites More sharing options...
sometimes99er Posted September 21, 2010 Share Posted September 21, 2010 but I also have the MBX module I tried and the MBX joystick doesnt seem to work either Wasn't the MBX joystick supposed to be put in the MBX module ? Quote Link to comment Share on other sites More sharing options...
lucifershalo Posted September 21, 2010 Author Share Posted September 21, 2010 yes ofcourse thats what I did but the MBX module isplugging into the joystick port among other so my assumption is that the "joystick commands"of the MBX are going through the joystick port... sorry if I gave only half explanation Quote Link to comment Share on other sites More sharing options...
nathanallan Posted September 21, 2010 Share Posted September 21, 2010 It's already answered, but I got my Y-cable adapter from ebay a while back. Only after that did I figure out that both my TI's were broken, both need keyboards There is this one store that I can't remember exactly, that sells TI stuff specifically, a dedicated website. I tried looking for it but can't find it. He has all the parts you would ever need to get that rig up and running, and then some! Does anybody know how to get there??? Quote Link to comment Share on other sites More sharing options...
matthew180 Posted September 21, 2010 Share Posted September 21, 2010 You can get keyboards on ebay all the time. Radio Shack in the U.S. used to sell them, and I have even seen them at garage sales here in the U.S. There are quite a few auctions right now and you could pick up a completely spare console pretty cheap. If the keyboard is causing the problem, it is really easy to open the case and disconnect the keyboard to test... Hmm, but how would you then select a program that uses the joystick? It is a catch 22. I suppose you could start the TI, then unplug the keyboard with power on, but you are taking a risk doing that. I am also willing to fix 99/4A's if anyone wants to go through the hassle of shipping it to me. I would just need the motherboard, which should help keep costs down. If I get enough spare consoles, I could start a "swap" service, and that would also help me in my plan to take over the world by first replacing all the 9918A's in all 99/4A's with an F18A! Muhh Ha Ha Ha. Matthew Quote Link to comment Share on other sites More sharing options...
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