So my Tempest quite working last week after years of problem free service. The first sign of an issue started a few weeks back when I turned it on and I had no video and no blind game play. I opened it up and reseated the edge connectors and that fixed the problem. It ran fine for a few more weeks and then had the same issue, this time however, re-seating the side connectors did not do the trick. I checked my voltage (at the AR and the main PCB) and all voltages are fine. All fuses are fine, actually, everything looks fine.... A few things to note, when I flip the test switch up it will eventually shoe me the switch test screen but it's not showing any ROM failures or the settings screen. When I flip off the test switch I get one horizontal line that flashes in the middle of the screen and nothing else. After cycling power it goes away and back to a blank screen and no game play. Also, the player 1 and 2 lights are not blinking normally, they are blinking in a faster cycle and that cycle changes, it doesn't stay consistent. I swapped out my main PCB with another one I had (that I thought worked) and had the same exact problem. So I swapped out my AR board with another one and still have the same problem. I do have another Tempest cab that has a bad monitor, I can get the game to play blind in that one but not in my good cab. I guess I'm just wondering what am I missing? I work on these a lot and this is the first time I've had this issue. Anything is appreciated, thanks...
-Dave
-Dave

