I've been spending odd moments over the last month or so on wiring.
The two service buttons, which are mounted out of sight on the wood below the control panel, will act as power and a "back" button. They're LED buttons, so although out of sight they will light to indicate when they're relevant. When the cabinet has mains power applied the power button will light, so there's at least a clue how to turn it on. Once the power button is pressed (and the PC inside powers up) then its light will extinguish and the "back/esc" button will light instead. There are probably ways I could have done this using the uhid, but it's easy enough (in theory, although I spent time in advance testing theory with batteries etc.) to do with a relay.

I'm using a length of cat5 for these buttons, since it was an easy way to get a number of wires through the cabinet and saved money on extra wire (I have cat5 lying around). The power to the LEDs is supplied from the permanent 5V line on the ATX power suply, which I spliced into for ease. This means that the 5V is present when the PC is turned off, and it's only when the PC gets power that I then take 12V from the PC to switch the relay, which then switches the 5V over to the other LED.

I've also wired the other end of the aviation connector that's attached to the coin door wiring, and attached a more than adequate length of wire to it all that I can trim back once I terminate it all to the uhid etc.

More immediately exciting, and a simpler bit of wiring - the marquee light is powered!

For the power input for the cabinet I'm attaching a socket to a piece of wood that is mounting where the switch would be on a normal Nintendo cabinet. A Nintendo cabinet power wire would come as a captive wire through the middle bottom of the rear door, but I'd rather have a removable cable run separately since all the cabinet innards are non-standard anyway. Because the socket is getting sandwiched between two pieces of wood I've had to recess the mount to accommodate it.

For the PC itself I'm using an old one that I've decased and will be mounting it on a piece of MDF that will sit roughly where the cabinet PCB would go. I've attached standoffs to this and also cut a hole for the rear of the CPU/fan mount to allow it to breathe. I'm not planning any ventilation at this stage because I'm hoping there's enough space inside the cabinet to stop it getting too hot. If I need to do something then I'll have to vent somehow through the rear panel.


In place, with lots of wiring still to do. There's plenty of soldering being done, but I'm using connector blocks in many places so that it's easier if I ever need to change the PC.
