Need Help with Bram Stoker's Dracula problem

SkippyJoe777

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I recently aquired a BSD and have not been able to get it running yet. Every time I powered it up after troubleshooting some switch issues the problems would change. I have replaced the MPU (I had a new Rottendog laying around that I use to troubleshoot) but I put the original MPU back in after it did not solve the issue. I also replaced U-20 on the original MPU while it was out. The 10 Opto board is also new.

Currently if the game is powered on the Matrix Display shows "Factory Settings Restored" and "Bookkeeping Totals Cleared" bouncing back and forth. The single boot uptone IS happening. None of the test switches will cause the game to go into test mode or anything the machine is stuck right here.

Any suggestions??
 
Did it say factory settings with the rottendog mpu? Factory settings message is usually the result of dead batteries or battery power not getting to the board.
 
Strangely enough it was doing the same thing with the Rottendog MPU. HOWEVER, There was a broken battery terminal on the original MPU which I replaced. The problem ended up being a shorted SLAM switch, a blown fuse, and a battery terminal. I replaced U20 too just for the hell of it while I had it out. Still having some OPTO problems but will probably be able to get them fixed when I have a little more time to work on them. The machine is back up and playable for now though.
 
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