![]() ![]() I recently helped a user repair their 64 through text posts on a forum. As a matter of fact, a scope just adds needless hassle IMO. You have separate data and address lines, chip select lines, write enable, etc. That said, when it comes to slow 5V logic like a Commodore 64 or even an original Amiga, it's my preferred tool. If it doesn't work, well, there's always a newer and cheaper model. Take a look at the size of the probe tip, now look at a modern PCB. It's software, baby! Modern logic with its adaptive-equalized multi-gigabit data lanes and thousands of bits of configuration data aren't amenable to being troubleshooted with some manual poking about. How do you logic probe a differential bus? Most large modern logic systems have JTAG or boundary scan and effectively have a logic analyzer already built in. manual finding out BEFORE you start diagnosing or applying power or ground.Your. Just probing with your giant logic probe is probably adding 20pF to a bus that will not like it one bit and probably fail. On Edit: I went looking on Radio Shacks website for the model and they. What possible use could you get out of a few Hz of LED flashing or audio beeping on a DDR3 bus? Logic levels and rates are so different now. What happened? The last 30 years happened.
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