I know this is a frequent topic and I have read most, if not all of the old posts....Maybe I missed something...and someone can give me some guidance...I have an IGT S+ Machine....the DBV-200 lights up and has worked in the past. Now it will not accept any bills....It makes all the sounds on start up...and I went back to one of the previous posts (September 17, 2021) about moving the 6 dip switch on the bottom of the head. The test worked...the bills moved to the back of the unit. I put this DBV entire unit in another S+ machine that I have and it works fine. I have used a set chip to make sure it reads 9-1 (enable), changed cash boxes, the demon is set at.25, and reset some of the options....still no luck. The machine accepts coins and plays well except for the DBV. Could there be an option max or min limit that I missed? Any help is greatly appreciated...John