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Zerosquare

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Posts posted by Zerosquare


  1. 8 hours ago, phoboz said:

    I guess the best way to battle this is for the owners of the rights (to these games), is to keep selling them (at a reasonable price) :) 

    Unfortunately, that won't stop some people from making pirate copies, and other people from buying them.

    @str0m said above that the guy was selling Tempest 2000 repros, and you can't really argue that Tempest 2000 is hard-to-find or expensive.


  2. There's something I hadn't noticed before:

    image.png.ed81bba50ced125f1da44710831175b4.png

     

    I wonder if there's a risk that those thin traces could be damaged by repeated insertions, or shorted together by the cartridge connector's contacts.

     

    Just to be sure, I'd recommend moving them of that area, or maybe applying a bit of kapton tape to protect them if it's too late to change the PCB layout.

     


  3. Availability of components from this kind of brokers should be taken with a (big) grain of salt.

    A significant percentage of them don't actually have the stock they claim to have; when you place an order, they try to buy the components from someone else (and may not succeed).

    You may also get junk: chips crudely desoldered from circuit boards, defective or lower-grade chips, or even unrelated chips repainted to make them look like the ones you're looking for.


  4. Usually, PCB manufacturers who do electrical testing mention it explicitly. Some of them let you choose whether you want it or not, to lower the price.

     

    If they don't say anything about it and the price is cheap, I'd assume they don't do any testing.

    • Like 1

  5. On 11/25/2020 at 6:46 AM, cubanismo said:

    Ground and VCC were now bridged somewhere. I wasted a ton of time desoldering components until the short was cleared. Removing the CPLD finally cleared it. Cleaned it up and soldered it back on, the short was back. Desoldered it, it was clear again. Soldered a fresh CPLD chip on, short was back. No idea what happened here, but the board seems to be lost, and I wasted about 3 hours trying to revive it. This is the first board I've lost for unexplained reasons. I may have touched something wrong as I mentioned, but I really don't think I did.

    Does your PCB manufacturer offers electrical testing? If not, a possible cause is a defective PCB with an intermittent short between close pads or inner layers.

    • Like 1

  6. If by "someone" you mean the team that released the Jaguar version of Another World, contacting them directly would be more efficient than posting in a thread they may not read.

     

    If not... asking for dumps of homebrew games is not right, and offering money for it is even worse.

    • Like 3

  7. 8 hours ago, dash_rendar said:

    I would like to build my own joystick for the Jaguar. 2 sticks (digital) and 8 buttons. Do I need anything else besides the 4.7kOhm resistors and the 74HC244?

    Yes, 16 1N4148 diodes.

     

    8 hours ago, dash_rendar said:

    Does any of you have a circuit diagram where you don't get "killed" directly?

    I don't understand what you mean. Anyways, the circuit diagram in the Jaguar FAQ is correct. Just use it as is.

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