Well, I finally got my Hot Hand. I've been looking for one of these for about 25 years. It's in pretty nice shape too. But I have a weird wiring issue.

There is a 4 pin molex connector in the bottom of the cabinet with Wht-Grn and Wht-Brn wires going to the pot and then Grn-Wht and Grn-Yellow wires going to the speaker. The problem is this connector isn't hooked up to anything. I was assuming it should go to the sound board, but I just wanted to make sure I'm reading the schematic right.

The sound board is plugged into the top connector on the MPU. It looks like the pot should go to the Sound Board J3 connector pins 1 and 3, and then the speaker goes to J3 pins 8 and 9. The issue is these connectors look great and like they were wired at the factory, and the wires go to the top of the MPU instead of down into the cabinet.

I guess I'm just confused as to what this connector would plug into. A picture of the wiring (IPDB has some pictures of the bottom of the cabinet, but it's hard to see where the wires are going), or if anyone can add anything as to where these wires should hook up to, I'd surely appreciate it.

-Pat

I apologize, it was late and night, and we're in for another 2 weeks of 90+ degree weather here. I was hoping it was finished so I can start working on games in my basement again.

I'll grab some pictures, and relay the info on where the wiring is connected.

I also should have said that the game never powered up. The MPU isn't even getting a flicker. When I broke the game down, I saw many hacks on the power supply, so I just disassembled it, brought it home, then began to look at the hacks. I've taken the power supply out of the game, and just going to replace it with the Pinhead. So I guess to answer your question, I have no idea of the sound ever worked. But I'm pretty sure with wires from the speaker to nowhere, it probably hasn't. lol

-Pat

I really appreciate all the offered help, but I figured out what was going on. It's embarrassing, but I can attribute it to a mild heat stroke I guess.

There is an extra connector that was attached to the wire loom that goes down to the rectifier board that I was missing. It's the colors of the wires from the J3 connector on the sound board, and it fits into the connector by the speaker.

As I was tracing the wires from the sound board connector, and started pulling out the wire loom from the bottom of the cabinet, bingo the mystery connector appeared.

Also, when looking at IPDB images from Dracula, and a couple other games from around that era, they also have the sound board connected to the top connector of the MPU. I thought my Galaxy was like that, but wasn't exactly sure. Thanks again, but problem solved!! (I hope)

-Pat