While it's not an exactly similar situation, I unpacked a new Williams Diner, which I noticed straight away had been rejected from domestic (U.S.A) production. When powered up, it immediately displayed the message "Malfunction- Can't Move Wheel". The rotating wheel on the backbox insert board, which showed clock hands, did indeed remain stationary. However, the serial number sticker on it didn't match the machine, so that had already been changed.
When it went into normal game over/attract mode, I thought the high score 'pages' zipped across the displays almost too quickly to be read, prompting me to wonder if the cpu was running too fast. Getting into the bookkeeping/diagnostics added to this feeling - pressing Advance had the bookkeeping tallies at No.3 or 4 even for the briefest touch of the button, our collectors wouldn't have been able to get the coin totals. It was 'playable' by some op's standards, but really unpleasant, as all timed features were affected (even the plunger skill shot, which really was random at that speed).
I verified this by putting the Diner program chips into another Cpu board, which worked okay; the wheel tested during start-up and the other points were right too. The faulty Cpu went back to Deith Leisure, and I later heard that it had an 8 MHz crystal rather than the proper 4 MHz, even though it was marked as a 4 MHz.
