thrak
New member
I just got a few of my games out of storage. They had been stored for nearly 12 years. Tempest was in working condition when stored.
Anyway, when I power Tempest, I get no sound and no video. I do have LEDs lit on both the PCB and the monitor board. I also get the one and two player start buttons flashing, but they may be because I the game configured to free play.
I checked the fuses, and they seem fine. I could see no obvious disconnected wiring.
One odd thing is that I could not find any test mode switch inside the coin door. There is the volume pot mounted inside with what appears to be an extra button just hanging off. The extra button looks similar to the 1 or 2 player button.
Anyone know a good place to start? Any good trouble shooting manuals? Any good wiring diagrams to start checking voltages, connections, etc. I am a newbie at this, but would like the experience.
Anyway, when I power Tempest, I get no sound and no video. I do have LEDs lit on both the PCB and the monitor board. I also get the one and two player start buttons flashing, but they may be because I the game configured to free play.
I checked the fuses, and they seem fine. I could see no obvious disconnected wiring.
One odd thing is that I could not find any test mode switch inside the coin door. There is the volume pot mounted inside with what appears to be an extra button just hanging off. The extra button looks similar to the 1 or 2 player button.
Anyone know a good place to start? Any good trouble shooting manuals? Any good wiring diagrams to start checking voltages, connections, etc. I am a newbie at this, but would like the experience.
