EN:
Hello,
Does anyone have pictures of the PCB above and below the MZ-1X03 joy stick?
I would also like some pictures of the potentiometers, the interior layout ....
Thank you
FR:
Bonjour,
Est-ce que quelqu'un possède des photos du circuit imprimé dessus et dessous du joy stick MZ-1X03 ?
Je souhaiterai aussi quelques photos des potentiomètres, de l'agencement interieur....
Merci
Joy Stick MZ-1X03
Re: Joy Stick MZ-1X03
I'm afraid I don't have any pictures of the interiors. Are you planning to build a replica? You probably know this already, but the schematics is available in the manual.
https://original.sharpmz.org/mz-700/download/1x03.pdf
https://original.sharpmz.org/mz-700/download/1x03.pdf
Re: Joy Stick MZ-1X03
I actually plan to build a replica, but I have a problem on the diagram in the manual: It says a clock H for controlling circuits 74157 and 74221 but which is not connected to anything, so I suppose that there must be an astable or monostable circuit which is not present in the diagram. It is for this that I would have liked to have some pictures of the printed circuit.
Re: Joy Stick MZ-1X03
You are right, I have not noticed this before. The rate can probably be derived by looking at the assembler example in the manual, but yes, looking at the actual circuit would be easier
Btw another approach would be to use a small microcontroller instead of the original circuit. The protocol appears to be quite simple, although very costly on the computer side and not very practical for arcade style games.
Btw another approach would be to use a small microcontroller instead of the original circuit. The protocol appears to be quite simple, although very costly on the computer side and not very practical for arcade style games.
Re: Joy Stick MZ-1X03
While I have one, I wasn't confortable to dismantle it as I may break it by trying to dislodge the PCB (one main and two smaller for switches).
Re: Joy Stick MZ-1X03
I annotated the rear PCB as much as possible because I don't want to break anything out of forcing dislodging it:
Re: Joy Stick MZ-1X03
Oh I forgot to say: it looks like H is connected to VCC, i.e, 5V.
Re: Joy Stick MZ-1X03
Awesome ! thank you hlide.
There are the details that I wanted to validate this circuit. So if the terminal is connected to Vcc it is therefore that H means HIGH.
There are the details that I wanted to validate this circuit. So if the terminal is connected to Vcc it is therefore that H means HIGH.
Re: Joy Stick MZ-1X03
I'm an idiot: It was enough to look at the datasheet of the 74ls221 to actually see the wiring of the H which is indeed at 5V!
Sorry for the inconvenience.
Sorry for the inconvenience.