First let me say I know there are other threads on this but they are several years old, don't hold the answer and I don't want to necro bump them. Here's where I'm at. I have this Big Buck Safari arcade game that wasn't working. I picked it up for cheap. I am the service manager/ lead tech for a Gameroom/Gametable retail company. I've been doing extensive research on these raw thrills games as I just successfully upgraded a FnF Drift machine. Thank you again to all helped from here. But now I have this BBS machine that displays DISCONNECT when running. At first the Dell Optiplex 740 is uses was giving me the orange light of death on the power switch. I replaced the CMOS battery and it is now green. I set the BIOS settings from Bettson properly too. I also dropped in a back up PSU to make sure it wasnt that. PSU is fine. And the PC is spotless clean. I then ran the restore disc on the dell out of the machine and connected to my bench rest monitor, which was successful and got me to the Big Buck loading screen and then subsequently to the connect I/O board screen. So I powered down and put the PC into the machine and still get the DISCONNECT screen. I've tried connecting an led monitor to the PC with it in the machine and I get nothing displaying, not even the disconnect message. I've even tried to run the restore disc while in the machine, but it doesn't even display the Dell post screen. I tried to hook up a different VGA cable from I/O Board to monitor as well, nothing. Also it doesn't seem to be playing blind as I've flicked the coin switch and tried to start, nothing happens, no sound. So I took PC out of machine and hooked back up to my bench monitor and I get to the connect I/O board screen again. So the HD is fine, that I at least know.
Which leads me to wonder if its the I/O board? All the LED's are lit and fuses look intact. I'm just confused as would it display on the led monitor when bypassing the I/O VGA connection or not? Does anyone have any leads or have experienced this before? All wires seem ok and everything is connected including the small USB memory stick. I've hit a wall and could use the experts again!!!
Which leads me to wonder if its the I/O board? All the LED's are lit and fuses look intact. I'm just confused as would it display on the led monitor when bypassing the I/O VGA connection or not? Does anyone have any leads or have experienced this before? All wires seem ok and everything is connected including the small USB memory stick. I've hit a wall and could use the experts again!!!


