I have 2 Rottendog mp327 with the same problem. When the game is in attract mode or play mode the Playfield digital lamps, that are lit, are continuously pulsing and not staying solid. Any help would be appreciated.

I'm talking about all the insert lights, bonus lights, multiplier lights. All the lights that aren't GI

Not as yet. I have the game in storage and am working on something else

Fixed the problem. Found a bent pin on one of the 6821's. Up and running. Woo hoo.

Also. Check your 30k uf capacitor. It was the cause of the light issues