tremoloman2006 Posted March 6, 2008 Share Posted March 6, 2008 Wanted: Black TI-99/4A keyboard - One of my TI-99/4A's double and triple spaces on certain keys so I'm looking for a working keyboard to replace it that doesn't suffer from this common problem. TI-99/4A cartridges - If you have any carts for sale, please post which titles you have! I am trying to make a complete set of TI carts as well as ones from other companies. Offhand, I know I need any of the MBX titles, Congo Bongo, Miner 2049er, Junkman Jr, and other rare titles. Thank you for your time! Regards, Trem Quote Link to comment Share on other sites More sharing options...
BigO Posted March 6, 2008 Share Posted March 6, 2008 I have a keyboard that I stripped out of a TI back in '93 for a college project. I vaguely recall having desoldered a short ribbon cable with connector and soldered in my own ribbon connector. If you can cope with that and don't get any better offers, PM me. It'll be way cheap. Quote Link to comment Share on other sites More sharing options...
BigO Posted March 6, 2008 Share Posted March 6, 2008 (edited) Ha. I just went to check to make sure the keyboard was still intact and I found the original rainbow colored ribbon cable that I'd removed from the board. Sheesh, I guess I really never do throw anything away... Edited March 6, 2008 by BigO Quote Link to comment Share on other sites More sharing options...
Tursi Posted March 6, 2008 Share Posted March 6, 2008 I have a number of NOS keyboards, but they are grey/beige, not black. PM if interested anyway. Quote Link to comment Share on other sites More sharing options...
BigO Posted March 8, 2008 Share Posted March 8, 2008 Wanted: Black TI-99/4A keyboard - One of my TI-99/4A's double and triple spaces on certain keys so I'm looking for a working keyboard to replace it that doesn't suffer from this common problem. TI-99/4A cartridges - If you have any carts for sale, please post which titles you have! I am trying to make a complete set of TI carts as well as ones from other companies. Offhand, I know I need any of the MBX titles, Congo Bongo, Miner 2049er, Junkman Jr, and other rare titles. Thank you for your time! Regards, Trem This "keybouncing" is a common problem on the TI? Anybody know why? Do the contacts come loose to the point where the debouncing electronics are insufficient? Guess I could tear mine apart before I toss it. Quote Link to comment Share on other sites More sharing options...
mabb96 Posted March 8, 2008 Share Posted March 8, 2008 Wanted: Black TI-99/4A keyboard - One of my TI-99/4A's double and triple spaces on certain keys so I'm looking for a working keyboard to replace it that doesn't suffer from this common problem. TI-99/4A cartridges - If you have any carts for sale, please post which titles you have! I am trying to make a complete set of TI carts as well as ones from other companies. Offhand, I know I need any of the MBX titles, Congo Bongo, Miner 2049er, Junkman Jr, and other rare titles. Thank you for your time! Regards, Trem Hi there Trem, I do have this available : It is complete in box and in great shape with super minor details as you see in the pictures. PM me with your offer and payment method if interested, and I will send you more detailed pictures if needed. Happy week-end Quote Link to comment Share on other sites More sharing options...
djpubba Posted March 29, 2008 Share Posted March 29, 2008 This "keybouncing" is a common problem on the TI? Anybody know why? Do the contacts come loose to the point where the debouncing electronics are insufficient? Guess I could tear mine apart before I toss it. When I was modding my TI for RGB I found two different things resulted in wacky keyboard symptoms. One was that I had pulled the keyboard out so many times, the flexing of the ribbon cable had broken some of the conductors away from the PCB. I ended up desoldering the whole thing, re-stripping the end and soldering it back. I also found that if I accidently had the metal RF shielding around the motherboard pushed off it's intended path and shorting against the nearby contacts, I'd get keybouncing. Quote Link to comment Share on other sites More sharing options...
Tursi Posted April 27, 2008 Share Posted April 27, 2008 This "keybouncing" is a common problem on the TI? Anybody know why? Do the contacts come loose to the point where the debouncing electronics are insufficient? Guess I could tear mine apart before I toss it. I know it's old. The TI doesn't have any debounce electronics on the keyboard, it's all in the software. It's usually just that they get dirty, but there are no fewer than three styles of TI keyboard (that I've come across so far!) - discrete individual switches, and two types of buttons-over-contacts. In my experience the switches work best, but they're hardest to come across. There's always my PS/2 adapter if you want a project. http://harmlesslion.com/software/adapter Quote Link to comment Share on other sites More sharing options...
nathanallan Posted April 28, 2008 Share Posted April 28, 2008 I have the keybouncing problem on my TI also. I'll have to go and clean it. Um, clean it just liek any other keyboard, right? I may just replace it (though I have a black one, beige will work for me). AFAIK it's never been taken apart. Nathan Quote Link to comment Share on other sites More sharing options...
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