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Ksarul last won the day on May 5 2017

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  1. Yes--you will note that there is a diode where R6 should be. That terminates the recharge circuit. Final revision boards will have a spot for the diode and for the resistor, to support whichever option is needed by the user (either or on the components).
  2. Note also that the Thorne EMI games would have been side port cartridges too. They never released them in that format, but prototypes do/did exist. Kantronics also made a HAM Radio sideport cartridge (HAMSoft). Lastly, there were GROM Buster cartridges from CorComp and Navarone that plugged into the side port and allowed the user to insert ROM only cartridges into the cartridge port of a V2.2 console, press the GROM buster button, and the ROM cartridge would now be able to execute (instead of being locked out by the TI). This was a great option for those with V2.2 consoles.
  3. Note also that the side port versions could be up to 48K in size. That would allow for very large TI applications that didn't need anything but a bare console to use. I see that capability as more of an advantage than a protection scheme (although it did help with the latter too). Allowing a console user access to huge programs like that would have been a major plus--especially since it completely avoided the cartridge port lockout scheme for V2.2 consoles. I figure that a lot more cartridges using these tricks would have shown up on the market if TI hadn't pulled out. Sunware had a good idea for ROM/RAM-only cartridges, but they came on the market just a little too late and the company folded after concerting just the two known Exceltec cartridges. . .both of which are extremely rare. I know of only four copies of Killer Caterpillar and less than ten copies of Arcturus. I am lucky in that I have found one of each for my collection.
  4. Try grabbing the TIImage Tool from the bottom of the Ninerpedia home page and use it to make your images.
  5. The Reset circuit on the board just connects pin 1 to pin 29, following the TI standard. Third party cartridges don't always run this trace, and thus may not activate the Reset.
  6. One note on cartridge insertion under power: cartridges from TI generally have the reset circuit, as already noted, but that protection isn't perfect. GROM only cartridges generally have no issues with removal under power, but once you add ROMs to that mix, it becomes a bit more problematic (as Tursi noted). That said, with third party TI cartridges, insertion/removal under power is not advised, as most of them are ROM only and may or may not have the reset circuit present. I just turn power off for every change of modules, as that keeps it to a single process safe for all of my cartridges (and I do have a lot of them).
  7. Oh yessssssss! Sky Bars are delicious!
  8. I am really liking this one!
  9. The use the same GROMs. The cartridges were prepared for Tronics but ended up in overstock status. Scott Foresman then relabeled them and sold them with the two-page manuals later on, as the math games series was pretty popular and it didn't make sense to write them off. The physical cartridges were produced by TI and sold to SF in bulk from what I've been able to determine.
  10. I just validated my manual set, Owen. The only Tronics manual I have is for Picture Parts. I also compared it to both varieties if the Scott Foresman manual. All of the changes are in the first and last few pages, mostly to change things to Tronics instead of Scott Foresman. The content is otherwise identical. Note also that there is a secondary way to get the Tronics labelled cartridges: look for the Scott Foresman versions of the six math games with red text labels (as opposed to the normal blue text). Look carefully and you will see that the red labels are applied over a Tronics label. It is possible to carefully remove them without destroying the Tronics label (I did this once BITD to try to figure out what the underlying label was). It is a bit easier to find cartridges like this than it is to find the native Tronics label by itself. Note that the SF version with red print is a lot harder to find than the ones with the blue text labels, but they are a lot more common than the ones wih just a Tronics label.
  11. The only Tronics carts I have ever seen in the wild were the six game cartridges. I've never seen any of the five school management carts with a Tronics label--and for that matter, there are no more than five or six of any of the school management cartridges in the wild with a Scott Foresman label either. All of those fit into the mega rare category.
  12. Your symptoms actually lead me to the cable as the problem, not the console. If ALL games work with the modulator, it is taking the same signals as its input that the composite cable is using. Try a new composite cable. . .you may get a pleasant surprise.
  13. I have on of the original tapes for Wildcatting and a complete copy of Wall Street Challenge (in sealed, original packaging). The tapes used a blue cassette shell for all of their games. The two I have are the only ones I've seen physical copies of in the wild, although I have seen the file for Tournament Brick Bat somewhere on a disk as well. They were only released on cassette though, so that disk file I saw would have been a pirated copy.
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